{"pageNumber":"58","pageRowStart":"1425","pageSize":"25","recordCount":11370,"records":[{"id":70196284,"text":"70196284 - 2018 - Effects of contemporary land-use and land-cover change on the carbon balance of terrestrial ecosystems in the United States","interactions":[],"lastModifiedDate":"2022-04-14T20:34:00.196163","indexId":"70196284","displayToPublicDate":"2018-03-30T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1562,"text":"Environmental Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Effects of contemporary land-use and land-cover change on the carbon balance of terrestrial ecosystems in the United States","docAbstract":"<p><span>Changes in land use and land cover (LULC) can have profound effects on terrestrial carbon dynamics, yet their effects on the global carbon budget remain uncertain. While land change impacts on ecosystem carbon dynamics have been the focus of numerous studies, few efforts have been based on observational data incorporating multiple ecosystem types spanning large geographic areas over long time horizons. In this study we use a variety of synoptic-scale remote sensing data to estimate the effect of LULC changes associated with urbanization, agricultural expansion and contraction, forest harvest, and wildfire on the carbon balance of terrestrial ecosystems (forest, grasslands, shrublands, and agriculture) in the conterminous United States (i.e. excluding Alaska and Hawaii) between 1973 and 2010. We estimate large net declines in the area of agriculture and forest, along with relatively small increases in grasslands and shrublands. The largest net change in any class was an estimated gain of 114 865 km</span><sup>2</sup><span><span>&nbsp;</span>of developed lands, an average rate of 3282 km</span><sup>2</sup><span> yr</span><sup>−1</sup><span>. On average, US ecosystems sequestered carbon at an annual rate of 254 Tg C yr</span><sup>−1</sup><span>. In forest lands, the net sink declined by 35% over the study period, largely a result of land-use legacy, increasing disturbances, and reductions in forest area due to land use conversion. Uncertainty in LULC change data contributed to a ~16% margin of error in the annual carbon sink estimate prior to 1985 (approximately ±40 Tg C yr</span><sup>−1</sup><span>). Improvements in LULC and disturbance mapping starting in the mid-1980s reduced this uncertainty by ~50% after 1985. We conclude that changes in LULC are a critical component to understanding ecosystem carbon dynamics, and continued improvements in detection, quantification, and attribution of change have the potential to significantly reduce current uncertainties.</span></p>","language":"English","publisher":"IOP Science","doi":"10.1088/1748-9326/aab540","usgsCitation":"Sleeter, B.M., Liu, J., Daniel, C., Rayfield, B., Sherba, J.T., Hawbaker, T., Zhu, Z., Selmants, P., and Loveland, T., 2018, Effects of contemporary land-use and land-cover change on the carbon balance of terrestrial ecosystems in the United States: Environmental Research Letters, v. 13, Article 045006; 13 p., https://doi.org/10.1088/1748-9326/aab540.","productDescription":"Article 045006; 13 p.","ipdsId":"IP-093889","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":411,"text":"National Climate Change and Wildlife Science Center","active":true,"usgs":true},{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"links":[{"id":468880,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1088/1748-9326/aab540","text":"Publisher Index Page"},{"id":352987,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2018-03-29","publicationStatus":"PW","scienceBaseUri":"5afee6f5e4b0da30c1bfbfa7","contributors":{"authors":[{"text":"Sleeter, Benjamin M. 0000-0003-2371-9571 bsleeter@usgs.gov","orcid":"https://orcid.org/0000-0003-2371-9571","contributorId":3479,"corporation":false,"usgs":true,"family":"Sleeter","given":"Benjamin","email":"bsleeter@usgs.gov","middleInitial":"M.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true},{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":732102,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, Jinxun 0000-0003-0561-8988 jxliu@usgs.gov","orcid":"https://orcid.org/0000-0003-0561-8988","contributorId":3414,"corporation":false,"usgs":true,"family":"Liu","given":"Jinxun","email":"jxliu@usgs.gov","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":732103,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Daniel, Colin 0000-0001-7367-2041","orcid":"https://orcid.org/0000-0001-7367-2041","contributorId":203689,"corporation":false,"usgs":false,"family":"Daniel","given":"Colin","email":"","affiliations":[{"id":36689,"text":"Apex Resource Management Solutions; University of Toronto","active":true,"usgs":false}],"preferred":false,"id":732104,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rayfield, Bronwyn 0000-0003-1768-1300","orcid":"https://orcid.org/0000-0003-1768-1300","contributorId":203690,"corporation":false,"usgs":false,"family":"Rayfield","given":"Bronwyn","email":"","affiliations":[{"id":36690,"text":"Apex Resource Management Solutions","active":true,"usgs":false}],"preferred":false,"id":732105,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sherba, Jason T. 0000-0001-9151-686X jsherba@usgs.gov","orcid":"https://orcid.org/0000-0001-9151-686X","contributorId":196154,"corporation":false,"usgs":true,"family":"Sherba","given":"Jason","email":"jsherba@usgs.gov","middleInitial":"T.","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":732106,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hawbaker, Todd 0000-0003-0930-9154 tjhawbaker@usgs.gov","orcid":"https://orcid.org/0000-0003-0930-9154","contributorId":568,"corporation":false,"usgs":true,"family":"Hawbaker","given":"Todd","email":"tjhawbaker@usgs.gov","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":547,"text":"Rocky Mountain Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":732107,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Zhu, Zhiliang 0000-0002-6860-6936 zzhu@usgs.gov","orcid":"https://orcid.org/0000-0002-6860-6936","contributorId":150078,"corporation":false,"usgs":true,"family":"Zhu","given":"Zhiliang","email":"zzhu@usgs.gov","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":411,"text":"National Climate Change and Wildlife Science Center","active":true,"usgs":true},{"id":5055,"text":"Land Change Science","active":true,"usgs":true},{"id":505,"text":"Office of the AD Climate and Land-Use Change","active":true,"usgs":true}],"preferred":true,"id":732108,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Selmants, Paul 0000-0001-6211-3957 pselmants@usgs.gov","orcid":"https://orcid.org/0000-0001-6211-3957","contributorId":192591,"corporation":false,"usgs":true,"family":"Selmants","given":"Paul","email":"pselmants@usgs.gov","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":732109,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Loveland, Thomas R. 0000-0003-3114-6646 loveland@usgs.gov","orcid":"https://orcid.org/0000-0003-3114-6646","contributorId":3005,"corporation":false,"usgs":true,"family":"Loveland","given":"Thomas R.","email":"loveland@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":732110,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70196289,"text":"70196289 - 2018 - Phylogeny and species traits predict bird detectability","interactions":[],"lastModifiedDate":"2018-10-04T13:31:07","indexId":"70196289","displayToPublicDate":"2018-03-30T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1445,"text":"Ecography","active":true,"publicationSubtype":{"id":10}},"title":"Phylogeny and species traits predict bird detectability","docAbstract":"<p><span>Avian acoustic communication has resulted from evolutionary pressures and ecological constraints. We therefore expect that auditory detectability in birds might be predictable by species traits and phylogenetic relatedness. We evaluated the relationship between phylogeny, species traits, and field‐based estimates of the two processes that determine species detectability (singing rate and detection distance) for 141 bird species breeding in boreal North America. We used phylogenetic mixed models and cross‐validation to compare the relative merits of using trait data only, phylogeny only, or the combination of both to predict detectability. We found a strong phylogenetic signal in both singing rates and detection distances; however the strength of phylogenetic effects was less than expected under Brownian motion evolution. The evolution of behavioural traits that determine singing rates was found to be more labile, leaving more room for species to evolve independently, whereas detection distance was mostly determined by anatomy (i.e. body size) and thus the laws of physics. Our findings can help in disentangling how complex ecological and evolutionary mechanisms have shaped different aspects of detectability in boreal birds. Such information can greatly inform single‐ and multi‐species models but more work is required to better understand how to best correct possible biases in phylogenetic diversity and other community metrics.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/ecog.03415","usgsCitation":"Solymos, P., Matsuoka, S.M., Stralberg, D., Barker, N.K., and Bayne, E.M., 2018, Phylogeny and species traits predict bird detectability: Ecography, v. 41, no. 10, p. 1595-1603, https://doi.org/10.1111/ecog.03415.","productDescription":"9 p.","startPage":"1595","endPage":"1603","ipdsId":"IP-088898","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":353019,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"10","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2018-02-09","publicationStatus":"PW","scienceBaseUri":"5afee6f4e4b0da30c1bfbfa3","contributors":{"authors":[{"text":"Solymos, Peter","contributorId":203718,"corporation":false,"usgs":false,"family":"Solymos","given":"Peter","email":"","affiliations":[{"id":36696,"text":"University of Alberta","active":true,"usgs":false}],"preferred":false,"id":732170,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Matsuoka, Steven M. 0000-0001-6415-1885 smatsuoka@usgs.gov","orcid":"https://orcid.org/0000-0001-6415-1885","contributorId":184173,"corporation":false,"usgs":true,"family":"Matsuoka","given":"Steven","email":"smatsuoka@usgs.gov","middleInitial":"M.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":732169,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stralberg, Diana","contributorId":187413,"corporation":false,"usgs":false,"family":"Stralberg","given":"Diana","email":"","affiliations":[],"preferred":false,"id":732171,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barker, Nicole K. S.","contributorId":203720,"corporation":false,"usgs":false,"family":"Barker","given":"Nicole","email":"","middleInitial":"K. S.","affiliations":[{"id":36697,"text":"Boreal Avian Modeling Project","active":true,"usgs":false}],"preferred":false,"id":732172,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bayne, Erin M.","contributorId":140675,"corporation":false,"usgs":false,"family":"Bayne","given":"Erin","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":732173,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70196291,"text":"70196291 - 2018 - Lessons learned from research and surveillance directed at highly pathogenic influenza A viruses in wild birds inhabiting North America","interactions":[],"lastModifiedDate":"2018-03-30T13:57:01","indexId":"70196291","displayToPublicDate":"2018-03-30T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3696,"text":"Virology","active":true,"publicationSubtype":{"id":10}},"title":"Lessons learned from research and surveillance directed at highly pathogenic influenza A viruses in wild birds inhabiting North America","docAbstract":"<p><span>Following detections of highly pathogenic (HP) influenza </span><span>A viruses (IAVs) in wild birds inhabiting East Asia after the turn of the millennium, the intensity of sampling of wild birds for IAVs increased throughout much of North America. The objectives for many research and surveillance efforts were directed towards detecting Eurasian origin HP IAVs and understanding the potential of such viruses to be maintained and dispersed by wild birds. In this review, we highlight five important lessons learned from research and surveillance directed at HP IAVs in wild birds inhabiting North America: (1) Wild birds may disperse IAVs between North America and adjacent regions via migration, (2) HP IAVs can be introduced to wild birds in North America, (3) HP IAVs may cross the wild bird-poultry interface in North America, (4) The probability of encountering and detecting a specific virus may be low, and (5) Population immunity of wild birds may influence HP IAV outbreaks in North America. We review empirical support derived from research and surveillance efforts for each lesson learned and, furthermore, identify implications for future surveillance efforts, biosecurity, and population health. We conclude our review by identifying five additional areas in which we think future mechanistic research relative to IAVs in wild birds in North America are likely to lead to other important lessons learned in the years ahead.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.virol.2018.02.002","usgsCitation":"Ramey, A.M., DeLiberto, T.J., Berhane, Y., Swayne, D.E., and Stallknecht, D.E., 2018, Lessons learned from research and surveillance directed at highly pathogenic influenza A viruses in wild birds inhabiting North America: Virology, v. 518, p. 55-63, https://doi.org/10.1016/j.virol.2018.02.002.","productDescription":"9 p.","startPage":"55","endPage":"63","ipdsId":"IP-092056","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":488759,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.virol.2018.02.002","text":"Publisher Index Page"},{"id":353017,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"518","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5afee6f4e4b0da30c1bfbfa1","contributors":{"authors":[{"text":"Ramey, Andrew M. 0000-0002-3601-8400 aramey@usgs.gov","orcid":"https://orcid.org/0000-0002-3601-8400","contributorId":1872,"corporation":false,"usgs":true,"family":"Ramey","given":"Andrew","email":"aramey@usgs.gov","middleInitial":"M.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":732178,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"DeLiberto, Thomas J.","contributorId":145606,"corporation":false,"usgs":false,"family":"DeLiberto","given":"Thomas","email":"","middleInitial":"J.","affiliations":[{"id":16167,"text":"7United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Disease Program, 4101 LaPorte Ave., Fort Collins, CO, United States of America.","active":true,"usgs":false}],"preferred":false,"id":732179,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Berhane, Yohannes","contributorId":145607,"corporation":false,"usgs":false,"family":"Berhane","given":"Yohannes","email":"","affiliations":[{"id":16168,"text":"National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Manitoba, R3L 3M4, Canada","active":true,"usgs":false}],"preferred":false,"id":732180,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Swayne, David E.","contributorId":86218,"corporation":false,"usgs":true,"family":"Swayne","given":"David","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":732181,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stallknecht, David E.","contributorId":20230,"corporation":false,"usgs":true,"family":"Stallknecht","given":"David","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":732182,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70196202,"text":"70196202 - 2018 - Refining aging criteria for northern sea otters in Washington State","interactions":[],"lastModifiedDate":"2023-06-23T14:40:30.238575","indexId":"70196202","displayToPublicDate":"2018-03-26T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2287,"text":"Journal of Fish and Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Refining aging criteria for northern sea otters in Washington State","docAbstract":"<p><span>Measurement of skull ossification patterns is a standard method for aging various mammalian species and has been used to age sea otters&nbsp;</span><i>Enhydra lutris</i><span>&nbsp;from Russia, California, and Alaska. Cementum annuli counts have also been verified as an accurate aging method for sea otters in Alaska. In this study, we compared cementum annuli count results and skull ossification patterns as methods for aging the northern sea otter,&nbsp;</span><i>E. l. kenyoni,</i><span>&nbsp;in Washington State. We found significant agreement between the two methods, suggesting that either method could be used to age sea otters in Washington. We found that ossification of the squamosal–jugal suture at the ventral glenoid fossa can be used to differentiate male subadults from adults. To assist field biologists or others without access to cementum annuli or skull ossification analysis techniques, we analyzed a suite of morphologic, physiologic, and developmental characteristics to assess whether a set of these more easily accessible parameters could also predict age class. We identified tooth condition score, evidence of reproductive activity in females, and tooth eruption pattern as the most useful criteria for classifying sea otters in Washington. We created a simple decision tree based on characteristics accessible in the field or at necropsy, which can be used to reliably predict age class of Washington sea otters as determined by cementum annuli. These techniques offer field biologists and marine mammal stranding networks a replicable, cost-conscious methodology to gather useful biological information from sea otters.</span></p>","language":"English","publisher":"Scientific Journals","doi":"10.3996/052017-JFWM-040","usgsCitation":"Schuler, K.L., Baker, B.B., Mayer, K.A., Perez-Heydrich, C., Holahan, P.M., Thomas, N.J., and White, C.L., 2018, Refining aging criteria for northern sea otters in Washington State: Journal of Fish and Wildlife Management, v. 9, no. 1, p. 208-221, https://doi.org/10.3996/052017-JFWM-040.","productDescription":"14 p.","startPage":"208","endPage":"221","ipdsId":"IP-087303","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":460983,"rank":3,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3996/052017-jfwm-040","text":"Publisher Index Page"},{"id":352763,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":418365,"rank":2,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F72J69B7","text":"USGS data release","description":"USGS data release","linkHelpText":"Northern Sea Otter Aging Criteria: data"}],"country":"United States","state":"Washington","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-122.519535,48.288314],[-122.551793,48.281512],[-122.584086,48.297987],[-122.618466,48.294159],[-122.626757,48.288991],[-122.620748,48.282961],[-122.623779,48.269431],[-122.652639,48.265081],[-122.66921,48.240614],[-122.668385,48.223967],[-122.628352,48.222467],[-122.606406,48.208262],[-122.588138,48.18594],[-122.558205,48.119579],[-122.571853,48.102143],[-122.54512,48.05255],[-122.513994,48.059077],[-122.511081,48.075301],[-122.525422,48.096537],[-122.513276,48.097538],[-122.491104,48.094242],[-122.431266,48.045001],[-122.376259,48.034457],[-122.373263,48.000791],[-122.353611,47.981433],[-122.349597,47.958796],[-122.358812,47.93742],[-122.376837,47.923703],[-122.380497,47.904023],[-122.397349,47.912401],[-122.431035,47.914732],[-122.445519,47.930226],[-122.44076,47.951845],[-122.446682,47.963155],[-122.47266,47.988449],[-122.501257,47.987089],[-122.521219,47.972997],[-122.546824,47.967215],[-122.552053,47.973644],[-122.542924,47.996404],[-122.58178,48.010386],[-122.607342,48.030992],[-122.593621,48.0472],[-122.594922,48.056318],[-122.614028,48.072788],[-122.598301,48.110616],[-122.609568,48.15186],[-122.633167,48.163281],[-122.677337,48.154587],[-122.693084,48.181509],[-122.763042,48.215342],[-122.770045,48.224395],[-122.752563,48.260061],[-122.732022,48.279425],[-122.72259,48.304268],[-122.673731,48.354683],[-122.664928,48.374823],[-122.664659,48.401508],[-122.634991,48.404244],[-122.63582,48.395128],[-122.609715,48.411565],[-122.60198,48.409907],[-122.595351,48.3972],[-122.585038,48.395166],[-122.585162,48.353304],[-122.551334,48.342138],[-122.506568,48.310041],[-122.505828,48.297677],[-122.519535,48.288314]]],[[[-122.474684,47.511068],[-122.452399,47.503471],[-122.460027,47.48686],[-122.433385,47.46643],[-122.439415,47.458633],[-122.437656,47.407424],[-122.395054,47.399277],[-122.373628,47.388718],[-122.437809,47.365606],[-122.453997,47.343337],[-122.469702,47.344623],[-122.493122,47.330253],[-122.51885,47.33332],[-122.528128,47.345542],[-122.517797,47.368678],[-122.526733,47.398581],[-122.514703,47.414048],[-122.513328,47.449106],[-122.497862,47.475915],[-122.482739,47.483133],[-122.474684,47.511068]]],[[[-122.695907,48.737273],[-122.663259,48.697077],[-122.644901,48.691389],[-122.618225,48.670721],[-122.609576,48.645018],[-122.635299,48.651846],[-122.673538,48.680809],[-122.691795,48.711498],[-122.718833,48.716818],[-122.722262,48.731624],[-122.715709,48.748672],[-122.695907,48.737273]]],[[[-123.035393,49.002154],[-123.021459,48.977299],[-123.028091,48.973943],[-123.083834,48.976139],[-123.090546,49.001976],[-123.035393,49.002154]]],[[[-122.800217,48.60169],[-122.804869,48.595932],[-122.801096,48.585425],[-122.770349,48.558106],[-122.788503,48.530393],[-122.787347,48.523012],[-122.777467,48.517799],[-122.779124,48.508911],[-122.817912,48.483888],[-122.81973,48.458843],[-122.803521,48.428748],[-122.812208,48.422326],[-122.874135,48.418196],[-122.893646,48.422655],[-122.889016,48.435947],[-122.913888,48.443231],[-122.928004,48.439966],[-122.91646,48.453263],[-122.926901,48.460874],[-122.962009,48.451161],[-123.039156,48.460003],[-123.067675,48.479497],[-123.119451,48.492576],[-123.141478,48.505291],[-123.163234,48.529544],[-123.16147,48.547618],[-123.176266,48.562131],[-123.173061,48.579086],[-123.184941,48.58697],[-123.197754,48.586216],[-123.203026,48.596178],[-123.178425,48.622115],[-123.107362,48.622451],[-123.098462,48.612834],[-123.101552,48.59782],[-123.074611,48.591816],[-123.048403,48.569216],[-123.015046,48.560821],[-122.987296,48.561895],[-122.98611,48.569984],[-122.995026,48.578162],[-123.016647,48.580244],[-123.034101,48.591767],[-123.023433,48.599477],[-123.04653,48.61149],[-123.048652,48.621002],[-123.023495,48.634001],[-123.009924,48.655064],[-122.949116,48.693398],[-122.942367,48.706723],[-122.894599,48.71503],[-122.833124,48.698173],[-122.800267,48.67962],[-122.743049,48.661991],[-122.755031,48.649512],[-122.792147,48.633502],[-122.809622,48.619035],[-122.800217,48.60169]]],[[[-123.197953,48.68466],[-123.186076,48.684917],[-123.14799,48.668001],[-123.106165,48.633473],[-123.134956,48.63724],[-123.215917,48.669352],[-123.237148,48.683466],[-123.236567,48.68895],[-123.212892,48.689713],[-123.197953,48.68466]]],[[[-123.025486,48.717966],[-123.007511,48.718863],[-123.005086,48.694342],[-123.021215,48.681416],[-123.042337,48.675663],[-123.03636,48.69008],[-123.070427,48.699971],[-123.040179,48.717296],[-123.025486,48.717966]]],[[[-122.649405,48.588457],[-122.610841,48.561146],[-122.578856,48.54813],[-122.572967,48.529028],[-122.599948,48.536904],[-122.635738,48.526021],[-122.649256,48.528769],[-122.654342,48.537956],[-122.649405,48.588457]]],[[[-122.714512,48.60878],[-122.694672,48.596602],[-122.670638,48.568812],[-122.68944,48.543903],[-122.722407,48.540606],[-122.73048,48.565602],[-122.73944,48.573893],[-122.739898,48.583949],[-122.714512,48.60878]]],[[[-122.699266,48.621115],[-122.674173,48.629944],[-122.657016,48.609891],[-122.676796,48.610055],[-122.699266,48.621115]]],[[[-122.334524,48.018916],[-122.321721,48.019977],[-122.303455,48.005603],[-122.326115,48.010295],[-122.334524,48.018916]]],[[[-122.418268,47.320614],[-122.324833,47.348521],[-122.328434,47.400621],[-122.348035,47.415921],[-122.355135,47.441921],[-122.383136,47.450521],[-122.368036,47.459221],[-122.361336,47.481421],[-122.396538,47.51522],[-122.398338,47.55012],[-122.421139,47.57602],[-122.387139,47.59572],[-122.370167,47.583087],[-122.342937,47.59122],[-122.339513,47.599113],[-122.344937,47.60912],[-122.367819,47.624213],[-122.414645,47.639766],[-122.429841,47.658919],[-122.393248,47.701602],[-122.38044,47.709119],[-122.37314,47.729219],[-122.382641,47.749119],[-122.380241,47.758519],[-122.396422,47.777927],[-122.394944,47.803318],[-122.33595,47.852306],[-122.328546,47.897917],[-122.311927,47.923703],[-122.307048,47.949117],[-122.249007,47.959507],[-122.230046,47.970917],[-122.226346,47.976417],[-122.232391,47.987713],[-122.224979,48.016626],[-122.231761,48.029876],[-122.281087,48.049793],[-122.326119,48.092877],[-122.343241,48.097631],[-122.363842,48.12393],[-122.370253,48.164809],[-122.362044,48.187568],[-122.372492,48.193022],[-122.395499,48.228551],[-122.433767,48.23655],[-122.449605,48.232598],[-122.45371,48.228859],[-122.449513,48.214736],[-122.441731,48.211776],[-122.45493,48.196639],[-122.478535,48.188087],[-122.479008,48.175703],[-122.442383,48.130841],[-122.379481,48.087384],[-122.358375,48.056133],[-122.377114,48.057568],[-122.400692,48.085255],[-122.4675,48.130353],[-122.489986,48.120617],[-122.512031,48.133931],[-122.53722,48.183745],[-122.538916,48.209683],[-122.530996,48.249821],[-122.503786,48.257045],[-122.480925,48.251706],[-122.463962,48.270541],[-122.406516,48.25183],[-122.395328,48.257187],[-122.392058,48.269628],[-122.371693,48.287839],[-122.408718,48.326413],[-122.442678,48.337934],[-122.475529,48.359912],[-122.507437,48.364666],[-122.533452,48.383409],[-122.539449,48.39719],[-122.554536,48.40604],[-122.558403,48.426758],[-122.551221,48.439465],[-122.557298,48.444438],[-122.575254,48.443333],[-122.581607,48.429244],[-122.61448,48.41488],[-122.649839,48.408526],[-122.674158,48.424726],[-122.678928,48.439466],[-122.654844,48.454087],[-122.657753,48.47294],[-122.664623,48.478128],[-122.689121,48.476849],[-122.700603,48.457632],[-122.712322,48.464143],[-122.712981,48.47879],[-122.701644,48.497622],[-122.684521,48.509123],[-122.671386,48.50398],[-122.606961,48.522152],[-122.599951,48.520946],[-122.598469,48.512169],[-122.568071,48.50821],[-122.537355,48.466749],[-122.500721,48.460887],[-122.471832,48.470724],[-122.46967,48.474975],[-122.483501,48.49243],[-122.485288,48.528106],[-122.498463,48.556206],[-122.504428,48.564775],[-122.531978,48.568644],[-122.534719,48.574246],[-122.495904,48.575927],[-122.478431,48.559303],[-122.44456,48.570115],[-122.425271,48.599522],[-122.448702,48.622624],[-122.46425,48.625717],[-122.500308,48.656163],[-122.519172,48.713095],[-122.495301,48.737328],[-122.490401,48.751128],[-122.510902,48.757728],[-122.535803,48.776128],[-122.567498,48.779185],[-122.596844,48.771492],[-122.637146,48.735708],[-122.626287,48.72093],[-122.612562,48.714932],[-122.605733,48.701066],[-122.615169,48.693839],[-122.630422,48.696625],[-122.673472,48.733082],[-122.647443,48.773998],[-122.646777,48.785011],[-122.693683,48.804475],[-122.699303,48.789063],[-122.709815,48.786205],[-122.709169,48.817829],[-122.717073,48.84719],[-122.793175,48.892927],[-122.751289,48.911239],[-122.746596,48.930731],[-122.766096,48.941955],[-122.787539,48.931702],[-122.821631,48.941369],[-122.817226,48.95597],[-122.774276,48.991038],[-122.756318,48.996881],[-122.75802,49.002357],[-121.751252,48.997399],[-117.032351,48.999188],[-117.042623,47.761223],[-117.039813,46.425425],[-117.034696,46.418318],[-117.046915,46.379577],[-117.062785,46.365287],[-117.062748,46.353624],[-117.055983,46.345531],[-117.023844,46.335976],[-117.020663,46.314793],[-116.986688,46.296662],[-116.991134,46.276342],[-116.966742,46.256923],[-116.955264,46.23088],[-116.965841,46.203417],[-116.92187,46.167808],[-116.950276,46.123464],[-116.955263,46.102237],[-116.976957,46.09667],[-116.982479,46.089389],[-116.978938,46.080007],[-116.957372,46.075449],[-116.942656,46.061],[-116.91718,45.996575],[-118.987129,45.999855],[-119.027056,45.969134],[-119.12612,45.932859],[-119.19553,45.92787],[-119.25715,45.939926],[-119.322509,45.933183],[-119.364396,45.921605],[-119.450256,45.917354],[-119.487829,45.906307],[-119.524632,45.908605],[-119.571584,45.925456],[-119.600549,45.919581],[-119.623393,45.905639],[-119.669877,45.856867],[-119.772927,45.845578],[-119.802655,45.84753],[-119.907461,45.828135],[-119.965744,45.824365],[-120.07015,45.785152],[-120.141352,45.773152],[-120.170453,45.761951],[-120.210754,45.725951],[-120.282156,45.72125],[-120.40396,45.699249],[-120.482362,45.694449],[-120.505863,45.700048],[-120.559465,45.738348],[-120.591166,45.746547],[-120.634968,45.745847],[-120.68937,45.715847],[-120.855674,45.671545],[-120.895575,45.642945],[-120.913476,45.640045],[-120.943977,45.656445],[-120.983478,45.648344],[-121.06437,45.652549],[-121.084933,45.647893],[-121.120064,45.623134],[-121.117052,45.618117],[-121.145534,45.607886],[-121.183841,45.606441],[-121.196556,45.616689],[-121.200367,45.649829],[-121.215779,45.671238],[-121.33777,45.704949],[-121.372574,45.703111],[-121.401739,45.692887],[-121.423592,45.69399],[-121.462849,45.701367],[-121.499153,45.720846],[-121.533106,45.726541],[-121.631167,45.704657],[-121.668362,45.705082],[-121.707358,45.694809],[-121.735104,45.694039],[-121.811304,45.706761],[-121.867167,45.693277],[-121.901855,45.670716],[-121.900858,45.662009],[-121.908267,45.654399],[-121.935149,45.644169],[-121.955734,45.643559],[-121.963547,45.632784],[-121.983038,45.622812],[-122.044374,45.609516],[-122.101675,45.583516],[-122.183695,45.577696],[-122.2017,45.564141],[-122.266701,45.543841],[-122.331502,45.548241],[-122.352802,45.569441],[-122.380302,45.575941],[-122.438674,45.563585],[-122.548149,45.596768],[-122.675008,45.618039],[-122.76381,45.657138],[-122.774511,45.680437],[-122.760108,45.734413],[-122.761451,45.759163],[-122.769532,45.780583],[-122.795605,45.81],[-122.785026,45.867699],[-122.81151,45.912725],[-122.806193,45.932416],[-122.813998,45.960984],[-122.837638,45.98082],[-122.856158,46.014469],[-122.878092,46.031281],[-122.884478,46.06028],[-122.904119,46.083734],[-122.962681,46.104817],[-123.004233,46.133823],[-123.041297,46.146351],[-123.115904,46.185268],[-123.166414,46.188973],[-123.280166,46.144843],[-123.371433,46.146372],[-123.430847,46.181827],[-123.427629,46.229348],[-123.474844,46.267831],[-123.501245,46.271004],[-123.547659,46.259109],[-123.547636,46.265595],[-123.613544,46.259988],[-123.669501,46.266832],[-123.679125,46.272502],[-123.680574,46.296025],[-123.700764,46.305278],[-123.724273,46.301161],[-123.727913,46.289661],[-123.741478,46.290274],[-123.766682,46.273499],[-123.806139,46.283588],[-123.875525,46.239787],[-123.919581,46.251217],[-123.954353,46.277001],[-123.974509,46.303063],[-124.001264,46.31326],[-124.020551,46.315737],[-124.029924,46.308312],[-124.044018,46.275925],[-124.060961,46.278761],[-124.080671,46.267239],[-124.064624,46.326899],[-124.057425,46.409315],[-124.057024,46.493338],[-124.068655,46.634879],[-124.062715,46.642582],[-124.048444,46.645827],[-124.035874,46.630822],[-124.052708,46.622796],[-124.050842,46.617421],[-124.023566,46.582559],[-124.031737,46.496375],[-124.026032,46.462978],[-123.990615,46.463019],[-123.99268,46.488617],[-123.983688,46.498542],[-123.968044,46.473497],[-123.943667,46.477197],[-123.921192,46.507731],[-123.896703,46.522665],[-123.894254,46.537028],[-123.920247,46.567343],[-123.928861,46.588875],[-123.955556,46.60357],[-123.960642,46.636364],[-123.921913,46.650262],[-123.923269,46.672708],[-123.851356,46.70256],[-123.84621,46.716795],[-123.87668,46.730657],[-123.898641,46.750205],[-123.916371,46.741322],[-123.91285,46.730647],[-123.916874,46.726739],[-123.948683,46.725369],[-123.968564,46.736106],[-123.974994,46.733391],[-123.979655,46.724658],[-123.966886,46.705184],[-123.994242,46.707929],[-124.003458,46.702337],[-124.063117,46.733664],[-124.092176,46.741624],[-124.108078,46.836388],[-124.138225,46.905534],[-124.110641,46.91252],[-124.093392,46.901168],[-124.089286,46.867716],[-124.073113,46.861493],[-124.055085,46.870429],[-124.046344,46.893972],[-124.01366,46.90363],[-123.985082,46.921916],[-123.957493,46.921261],[-123.86018,46.948556],[-123.898245,46.971927],[-123.939214,46.969739],[-123.959185,46.981759],[-124.012218,46.985176],[-124.019727,46.991189],[-124.005248,47.003915],[-124.017035,47.011717],[-124.026345,47.030187],[-124.065856,47.04114],[-124.122057,47.04165],[-124.141517,47.035142],[-124.151288,47.021112],[-124.138035,46.970959],[-124.124386,46.94387],[-124.180111,46.926357],[-124.169113,46.994508],[-124.182802,47.134041],[-124.236349,47.287287],[-124.25359,47.30248],[-124.271193,47.305025],[-124.299943,47.34836],[-124.319379,47.355559],[-124.336724,47.415996],[-124.355955,47.545698],[-124.382215,47.632302],[-124.412106,47.691199],[-124.425195,47.738434],[-124.453927,47.765334],[-124.47657,47.769671],[-124.489737,47.816988],[-124.539927,47.836967],[-124.562363,47.866216],[-124.625512,47.887963],[-124.645442,47.935338],[-124.672427,47.964414],[-124.67083,47.982366],[-124.682157,48.035987],[-124.696542,48.069274],[-124.695114,48.087096],[-124.687101,48.098657],[-124.733174,48.163393],[-124.731746,48.169997],[-124.704153,48.184422],[-124.696111,48.198599],[-124.690389,48.219745],[-124.705031,48.238774],[-124.684677,48.255228],[-124.676319,48.295143],[-124.665908,48.299324],[-124.65894,48.331057],[-124.670072,48.341341],[-124.696703,48.349748],[-124.727022,48.371101],[-124.731828,48.381157],[-124.716947,48.389776],[-124.653243,48.390691],[-124.631108,48.376522],[-124.599278,48.381035],[-124.395593,48.288772],[-124.361351,48.287582],[-124.272017,48.25441],[-124.250882,48.264773],[-124.238582,48.262471],[-124.101773,48.216883],[-124.107215,48.200082],[-124.050734,48.177747],[-123.981032,48.164761],[-123.880068,48.160621],[-123.858821,48.154273],[-123.778122,48.155466],[-123.728736,48.1628],[-123.71835,48.158713],[-123.702743,48.166783],[-123.651408,48.156952],[-123.628819,48.139279],[-123.590839,48.134949],[-123.551131,48.151382],[-123.507235,48.131807],[-123.440128,48.142014],[-123.441972,48.124259],[-123.424668,48.118065],[-123.332699,48.11297],[-123.288265,48.121036],[-123.239129,48.118217],[-123.21719,48.127203],[-123.1644,48.165894],[-123.133445,48.177276],[-123.143229,48.156633],[-123.116479,48.150208],[-123.085154,48.127137],[-123.06621,48.120469],[-123.038727,48.081138],[-122.979413,48.09594],[-122.929095,48.096244],[-122.917942,48.091535],[-122.927975,48.06665],[-122.918602,48.058238],[-122.877641,48.047025],[-122.849273,48.053808],[-122.857727,48.065774],[-122.878255,48.076072],[-122.882013,48.100779],[-122.876282,48.110877],[-122.833173,48.134406],[-122.760448,48.14324],[-122.748911,48.117026],[-122.778466,48.106135],[-122.801399,48.087561],[-122.766648,48.04429],[-122.74229,48.049324],[-122.739271,48.069153],[-122.747389,48.070795],[-122.733257,48.091232],[-122.698465,48.103102],[-122.68724,48.101662],[-122.69222,48.087081],[-122.682264,48.042723],[-122.668942,48.032026],[-122.669868,48.017217],[-122.686898,48.008305],[-122.70184,48.016106],[-122.723374,48.008095],[-122.718082,47.987739],[-122.701294,47.972979],[-122.6788,47.96793],[-122.676215,47.958743],[-122.68445,47.939593],[-122.657722,47.931156],[-122.651063,47.920985],[-122.655085,47.905058],[-122.646494,47.894771],[-122.610341,47.887343],[-122.631857,47.874815],[-122.63636,47.866186],[-122.69376,47.868002],[-122.681602,47.850405],[-122.683742,47.838773],[-122.748061,47.800546],[-122.758498,47.746036],[-122.781682,47.70392],[-122.811929,47.679861],[-122.832139,47.695511],[-122.790619,47.792597],[-122.812616,47.840029],[-122.820178,47.835904],[-122.815027,47.807493],[-122.845612,47.777474],[-122.880462,47.720643],[-122.896524,47.674838],[-122.97244,47.6149],[-123.106486,47.45817],[-123.15598,47.355745],[-123.140169,47.347496],[-123.111298,47.362619],[-123.120234,47.39149],[-122.967284,47.585685],[-122.917103,47.620743],[-122.856611,47.649615],[-122.804498,47.653363],[-122.754186,47.671612],[-122.740159,47.736228],[-122.722686,47.748827],[-122.714801,47.768176],[-122.690562,47.778372],[-122.682015,47.800882],[-122.623192,47.836199],[-122.608105,47.856728],[-122.573672,47.857582],[-122.573098,47.874081],[-122.588235,47.912923],[-122.620316,47.931553],[-122.617022,47.938987],[-122.603861,47.940478],[-122.592184,47.922519],[-122.549072,47.919072],[-122.527593,47.905882],[-122.513986,47.880807],[-122.506122,47.831745],[-122.482529,47.815511],[-122.485214,47.804128],[-122.495346,47.79704],[-122.495458,47.786692],[-122.471402,47.765965],[-122.470333,47.757109],[-122.471844,47.749819],[-122.488491,47.743605],[-122.554454,47.745704],[-122.543161,47.710941],[-122.53094,47.704814],[-122.511196,47.708715],[-122.504604,47.699136],[-122.518277,47.65132],[-122.493205,47.635122],[-122.500357,47.617816],[-122.49824,47.598242],[-122.493933,47.588963],[-122.479089,47.583654],[-122.518367,47.57408],[-122.543118,47.556326],[-122.546611,47.52355],[-122.52305,47.524],[-122.494882,47.510265],[-122.530514,47.469041],[-122.531889,47.428827],[-122.551136,47.394456],[-122.537044,47.375896],[-122.575985,47.32642],[-122.547521,47.285344],[-122.578211,47.254804],[-122.589454,47.227618],[-122.602541,47.217506],[-122.611464,47.2181],[-122.668571,47.270449],[-122.697378,47.283969],[-122.671256,47.343774],[-122.632463,47.376394],[-122.671486,47.366876],[-122.725738,47.33047],[-122.74525,47.297158],[-122.749621,47.276408],[-122.718124,47.250045],[-122.648941,47.214531],[-122.641802,47.205013],[-122.673925,47.174675],[-122.691771,47.141958],[-122.711997,47.127681],[-122.771619,47.167109],[-122.832799,47.243412],[-122.816633,47.276457],[-122.799025,47.289306],[-122.796646,47.341654],[-122.803688,47.355071],[-122.821868,47.363069],[-122.822344,47.319763],[-122.84586,47.298405],[-122.863732,47.270221],[-122.856171,47.233788],[-122.838298,47.208353],[-122.858735,47.167955],[-122.852046,47.164359],[-122.814238,47.179482],[-122.775056,47.123114],[-122.721437,47.103179],[-122.67813,47.103866],[-122.650634,47.132738],[-122.631987,47.140589],[-122.614855,47.169143],[-122.590829,47.178107],[-122.561957,47.244099],[-122.527586,47.291531],[-122.547747,47.316403],[-122.533338,47.31662],[-122.471652,47.277321],[-122.4442,47.266723],[-122.429605,47.269707],[-122.409199,47.288556],[-122.444635,47.300421],[-122.418268,47.320614]]]]},\"properties\":{\"name\":\"Washington\",\"nation\":\"USA  \"}}]}","volume":"9","issue":"1","publishingServiceCenter":{"id":15,"text":"Madison PSC"},"noUsgsAuthors":false,"publicationDate":"2018-03-21","publicationStatus":"PW","scienceBaseUri":"5afee6f7e4b0da30c1bfbfd8","contributors":{"authors":[{"text":"Schuler, Krysten L.","contributorId":176255,"corporation":false,"usgs":false,"family":"Schuler","given":"Krysten","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":731667,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baker, Bridget B.","contributorId":203503,"corporation":false,"usgs":false,"family":"Baker","given":"Bridget","email":"","middleInitial":"B.","affiliations":[{"id":36638,"text":"Department of Forest and Wildlife Ecology, University of Wisconsin, 1630 Linden Drive, Madison, WI 53706","active":true,"usgs":false}],"preferred":false,"id":731666,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mayer, Karl A.","contributorId":203504,"corporation":false,"usgs":false,"family":"Mayer","given":"Karl","email":"","middleInitial":"A.","affiliations":[{"id":36639,"text":"University of Wisconsin Zoological Museum, 250 North Mills Street, Madison, WI 53706 (PMH)              Sea Otter Research and Conservation Program, Monterey Bay Aquarium, 886 Cannery Row, Monterey, CA 93940","active":true,"usgs":false}],"preferred":false,"id":731668,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Perez-Heydrich, Carolina","contributorId":203505,"corporation":false,"usgs":false,"family":"Perez-Heydrich","given":"Carolina","email":"","affiliations":[{"id":36640,"text":"Department of Biostatistics, Carolina Population Center, University of North Carolina, 123 West Franklin Street, Chapel Hill, NC 27516","active":true,"usgs":false}],"preferred":false,"id":731669,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Holahan, Paula M.","contributorId":141462,"corporation":false,"usgs":false,"family":"Holahan","given":"Paula","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":731670,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thomas, Nancy J. 0000-0002-0161-0391 nthomas@usgs.gov","orcid":"https://orcid.org/0000-0002-0161-0391","contributorId":1673,"corporation":false,"usgs":true,"family":"Thomas","given":"Nancy","email":"nthomas@usgs.gov","middleInitial":"J.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":false,"id":731672,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"White, C. LeAnn 0000-0002-5004-5165 clwhite@usgs.gov","orcid":"https://orcid.org/0000-0002-5004-5165","contributorId":4315,"corporation":false,"usgs":true,"family":"White","given":"C.","email":"clwhite@usgs.gov","middleInitial":"LeAnn","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":731665,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70237789,"text":"70237789 - 2018 - Analyzing floating and bedfast lake ice regimes across Arctic Alaska using 25 years of space-borne SAR imagery","interactions":[],"lastModifiedDate":"2022-10-25T10:57:31.208448","indexId":"70237789","displayToPublicDate":"2018-03-19T10:23:06","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"Analyzing floating and bedfast lake ice regimes across Arctic Alaska using 25 years of space-borne SAR imagery","docAbstract":"<p><span>Late-winter lake ice regimes are controlled by water depth relative to maximum ice thickness (MIT). When MIT exceeds maximum water depth, lakes freeze to the bottom with bedfast ice (BI) and when MIT is less than maximum water depth lakes have floating ice (FI). Both&nbsp;airborne radar&nbsp;and space-borne synthetic aperture radar (SAR) imagery (Ku-, X-, C-, and L-band) have been used previously to determine whether lakes have a BI or FI regime in a given year, across a number of years, or across large regions. In this study, we use a combination of ERS-1/2, RADARSAT-2,&nbsp;Envisat, and Sentinel-1 SAR imagery for seven lake-rich regions in Arctic Alaska to analyze lake ice regime extents and dynamics over a 25-year period (1992–2016). Our interactive threshold classification method determines a unique statistic-based intensity threshold for each SAR scene, allowing for the comparison of classification results from C-band SAR data acquired with different polarizations and incidence angles. Additionally, our novel method accommodates declining signal strength in aging extended-mission satellite SAR instruments. Comparison of SAR ice regime classifications with extensive field measurements from six years yielded a 93% accuracy. Significant declines in BI regimes were only observed in the Fish Creek area with 3% of lakes exhibiting transitional ice regimes—lakes that switch from BI to FI during this 25-year period. This analysis suggests that the potential conversion from BI to FI regimes is primarily a function of lake depth distributions in addition to regional differences in&nbsp;</span>climate variability<span>.&nbsp;Remote sensing&nbsp;of lake ice regimes with C-band SAR is a useful tool to monitor the associated thermal impacts on permafrost, since lake ice regimes can be used as a proxy for of sub-lake permafrost thaw, considered by the Global Climate Observing System as an Essential Climate Variable (ECV). Continued winter warming and variable snow conditions in the Arctic are expected and our long-term analysis provides a valuable baseline for predicting where potential future lake ice regimes shifts will be most pronounced.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.rse.2018.02.022","usgsCitation":"Engram, M., Arp, C.D., Jones, B.M., Ajadi, O.A., and Meyer, F.J., 2018, Analyzing floating and bedfast lake ice regimes across Arctic Alaska using 25 years of space-borne SAR imagery: Remote Sensing of Environment, v. 209, p. 660-676, https://doi.org/10.1016/j.rse.2018.02.022.","productDescription":"17 p.","startPage":"660","endPage":"676","ipdsId":"IP-090354","costCenters":[{"id":118,"text":"Alaska Science Center Geography","active":true,"usgs":true}],"links":[{"id":468905,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.rse.2018.02.022","text":"Publisher Index Page"},{"id":408647,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -159.5263144061035,\n              71.43267111072981\n            ],\n            [\n              -159.5263144061035,\n              68.42639425141334\n            ],\n            [\n              -146.22562492863324,\n              68.42639425141334\n            ],\n            [\n              -146.22562492863324,\n              71.43267111072981\n            ],\n            [\n              -159.5263144061035,\n              71.43267111072981\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -163.58954484767287,\n              66.64438234906729\n            ],\n            [\n              -166.61500668033133,\n              66.64438234906729\n            ],\n            [\n              -166.61500668033133,\n              65.88496852258822\n            ],\n            [\n              -163.58954484767287,\n              65.88496852258822\n            ],\n            [\n              -163.58954484767287,\n              66.64438234906729\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"209","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Engram, Melanie","contributorId":191062,"corporation":false,"usgs":false,"family":"Engram","given":"Melanie","email":"","affiliations":[],"preferred":false,"id":855648,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Arp, Christopher D.","contributorId":17330,"corporation":false,"usgs":false,"family":"Arp","given":"Christopher","email":"","middleInitial":"D.","affiliations":[{"id":6752,"text":"University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":855649,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, Benjamin M. 0000-0002-1517-4711 bjones@usgs.gov","orcid":"https://orcid.org/0000-0002-1517-4711","contributorId":2286,"corporation":false,"usgs":true,"family":"Jones","given":"Benjamin","email":"bjones@usgs.gov","middleInitial":"M.","affiliations":[{"id":118,"text":"Alaska Science Center Geography","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":855650,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ajadi, Olaniyi A","contributorId":298461,"corporation":false,"usgs":false,"family":"Ajadi","given":"Olaniyi","email":"","middleInitial":"A","affiliations":[{"id":6695,"text":"UAF","active":true,"usgs":false}],"preferred":false,"id":855651,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Meyer, Franz J","contributorId":298463,"corporation":false,"usgs":false,"family":"Meyer","given":"Franz","email":"","middleInitial":"J","affiliations":[{"id":6695,"text":"UAF","active":true,"usgs":false}],"preferred":false,"id":855652,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70195949,"text":"70195949 - 2018 - Avian predator buffers against variability in marine habitats with flexible foraging behavior","interactions":[],"lastModifiedDate":"2018-03-09T10:01:22","indexId":"70195949","displayToPublicDate":"2018-03-09T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2660,"text":"Marine Biology","active":true,"publicationSubtype":{"id":10}},"title":"Avian predator buffers against variability in marine habitats with flexible foraging behavior","docAbstract":"<p><span>How well seabirds compensate for variability in prey abundance and composition near their breeding colonies influences their distribution and reproductive success. We used tufted puffins (</span><i class=\"EmphasisTypeItalic \">Fratercula cirrhata</i><span>) as forage fish samplers to study marine food webs from the western Aleutian Islands (53°N, 173°E) to Kodiak Island (57°N, 153°W), Alaska, during August 2012–2014. Around each colony we obtained data on: environmental characteristics (sea surface temperature and salinity, seafloor depth and slope, tidal range, and chlorophyll-</span><i class=\"EmphasisTypeItalic \">a</i><span>), relative forage fish biomass (hydroacoustic backscatter), and seabird community composition and density at-sea. On colonies, we collected puffin chick-meals to characterize forage communities and determine meal energy density, and measured chicks to obtain a body condition index. There were distinct environmental gradients from west to east, and environmental variables differed by ecoregions: the (1) Western-Central Aleutians, (2) Eastern Aleutians, and, (3) Alaska Peninsula. Forage fish biomass, species richness, and community composition all differed markedly between ecoregions. Forage biomass was strongly correlated with environmental gradients, and environmental gradients and forage biomass accounted for&nbsp;~&nbsp;50% of the variability in at-sea density of tufted puffins and all seabird taxa combined. Despite the local and regional variability in marine environments and forage, the mean biomass of prey delivered to puffin chicks did not differ significantly between ecoregions, nor did chick condition or puffin density at-sea. We conclude that puffins can adjust their foraging behavior to produce healthy chicks across a wide range of environmental conditions. This extraordinary flexibility enables their overall success and wide distribution across the North Pacific Ocean.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00227-018-3304-4","usgsCitation":"Schoen, S.K., Piatt, J.F., Arimitsu, M.L., Heflin, B., Madison, E.N., Drew, G.S., Renner, M., Rojek, N.A., Douglas, D.C., and DeGange, A.R., 2018, Avian predator buffers against variability in marine habitats with flexible foraging behavior: Marine Biology, v. 165, p. 1-14, https://doi.org/10.1007/s00227-018-3304-4.","productDescription":"Article 47; 14 p.","startPage":"1","endPage":"14","ipdsId":"IP-090458","costCenters":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":437987,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7TQ60GV","text":"USGS data release","linkHelpText":"Marine ecology near Tufted Puffin colonies across the Aleutian Archipelago and Alaska Peninsula, 2012-2014"},{"id":352355,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Aleutian Islands, Gulf of Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -188.525390625,\n              50.84757295365389\n            ],\n            [\n              -151.6552734375,\n              50.84757295365389\n            ],\n            [\n              -151.6552734375,\n              57.657157596582984\n            ],\n            [\n              -188.525390625,\n              57.657157596582984\n            ],\n            [\n              -188.525390625,\n              50.84757295365389\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"165","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2018-02-15","publicationStatus":"PW","scienceBaseUri":"5afee701e4b0da30c1bfc050","contributors":{"authors":[{"text":"Schoen, Sarah K. 0000-0002-5685-5185 sschoen@usgs.gov","orcid":"https://orcid.org/0000-0002-5685-5185","contributorId":5136,"corporation":false,"usgs":true,"family":"Schoen","given":"Sarah","email":"sschoen@usgs.gov","middleInitial":"K.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":730651,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":730652,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arimitsu, Mayumi L. 0000-0001-6982-2238 marimitsu@usgs.gov","orcid":"https://orcid.org/0000-0001-6982-2238","contributorId":140501,"corporation":false,"usgs":true,"family":"Arimitsu","given":"Mayumi","email":"marimitsu@usgs.gov","middleInitial":"L.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":730653,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heflin, Brielle 0000-0002-4836-9187 bheflin@usgs.gov","orcid":"https://orcid.org/0000-0002-4836-9187","contributorId":198164,"corporation":false,"usgs":true,"family":"Heflin","given":"Brielle","email":"bheflin@usgs.gov","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":730654,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Madison, Erica N. emadison@usgs.gov","contributorId":3409,"corporation":false,"usgs":true,"family":"Madison","given":"Erica","email":"emadison@usgs.gov","middleInitial":"N.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":730655,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Drew, Gary S. 0000-0002-6789-0891 gdrew@usgs.gov","orcid":"https://orcid.org/0000-0002-6789-0891","contributorId":3311,"corporation":false,"usgs":true,"family":"Drew","given":"Gary","email":"gdrew@usgs.gov","middleInitial":"S.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":730656,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Renner, Martin","contributorId":198248,"corporation":false,"usgs":false,"family":"Renner","given":"Martin","email":"","affiliations":[],"preferred":false,"id":730657,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Rojek, Nora A.","contributorId":201046,"corporation":false,"usgs":false,"family":"Rojek","given":"Nora","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":730658,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Douglas, David C. 0000-0003-0186-1104 ddouglas@usgs.gov","orcid":"https://orcid.org/0000-0003-0186-1104","contributorId":2388,"corporation":false,"usgs":true,"family":"Douglas","given":"David","email":"ddouglas@usgs.gov","middleInitial":"C.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":730659,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"DeGange, Anthony R. tdegange@usgs.gov","contributorId":203210,"corporation":false,"usgs":false,"family":"DeGange","given":"Anthony","email":"tdegange@usgs.gov","middleInitial":"R.","affiliations":[{"id":36582,"text":"Former USGS ASC employee","active":true,"usgs":false}],"preferred":false,"id":730660,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70195923,"text":"70195923 - 2018 - Energetic solutions of Rock Sandpipers to harsh winter conditions rely on prey quality","interactions":[],"lastModifiedDate":"2018-03-08T09:44:20","indexId":"70195923","displayToPublicDate":"2018-03-08T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1961,"text":"Ibis","active":true,"publicationSubtype":{"id":10}},"title":"Energetic solutions of Rock Sandpipers to harsh winter conditions rely on prey quality","docAbstract":"<p><span>Rock Sandpipers&nbsp;</span><i>Calidris ptilocnemis</i><span><span>&nbsp;</span>have the most northerly non-breeding distribution of any shorebird in the Pacific Basin (upper Cook Inlet, Alaska; 61°N, 151°W). In terms of freezing temperatures, persistent winds and pervasive ice, this site is the harshest used by shorebirds during winter. We integrated physiological, metabolic, behavioural and environmental aspects of the non-breeding ecology of Rock Sandpipers at the northern extent of their range to determine the relative importance of these factors in facilitating their unique non-breeding ecology. Not surprisingly, estimated daily energetic demands were greatest during January, the coldest period of winter. These estimates were greatest for foraging birds, and exceeded basal metabolic rates by a factor of 6.5, a scope of increase that approaches the maximum sustained rate of energetic output by shorebirds during periods of migration, but far exceeds these periods in duration. We assessed the quality of their primary prey, the bivalve<span>&nbsp;</span></span><i>Macoma balthica</i><span>, to determine the daily foraging duration required by Rock Sandpipers to satisfy such energetic demands. Based on size-specific estimates of<span>&nbsp;</span></span><i>M.&nbsp;balthica</i><span><span>&nbsp;</span>quality, Rock Sandpipers require over 13&nbsp;h/day of foraging time in upper Cook Inlet in January, even when feeding on the highest quality prey. This range approaches the average daily duration of mudflat availability in this region (</span><i>c</i><span>. 18&nbsp;h), a maximum value that annually decreases due to the accumulation of shore-fast ice. Rock Sandpipers are likely to maximize access to foraging sites by following the exposure of ice-free mudflats across the upper Cook Inlet region and by selecting smaller, higher quality<span>&nbsp;</span></span><i>M.&nbsp;balthica</i><span><span>&nbsp;</span>to minimize foraging times. Ultimately, this unusual non-breeding ecology relies on the high quality of their prey resources. Compared with other sites across their range,<span>&nbsp;</span></span><i>M.&nbsp;balthica</i><span><span>&nbsp;</span>from upper Cook Inlet have relatively light shells, potentially the result of the region's depauperate invertebrate predator community. Given the delicate balance between environmental and prey conditions that currently make Cook Inlet a viable wintering area for Rock Sandpipers, small variations in these variables may affect the suitability of the site in the future.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/ibi.12534","usgsCitation":"Ruthrauff, D.R., Dekinga, A., Gill, R., and Piersma, T., 2018, Energetic solutions of Rock Sandpipers to harsh winter conditions rely on prey quality: Ibis, v. 160, no. 2, p. 397-412, https://doi.org/10.1111/ibi.12534.","productDescription":"16 p.","startPage":"397","endPage":"412","ipdsId":"IP-087163","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":468928,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1111/ibi.12534","text":"External Repository"},{"id":352327,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Cook Inlet","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.28076171875,\n              58.802361927759456\n            ],\n            [\n              -148.271484375,\n              58.802361927759456\n            ],\n            [\n              -148.271484375,\n              61.887225669194976\n            ],\n            [\n              -155.28076171875,\n              61.887225669194976\n            ],\n            [\n              -155.28076171875,\n              58.802361927759456\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"160","issue":"2","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2017-09-20","publicationStatus":"PW","scienceBaseUri":"5afee701e4b0da30c1bfc05e","contributors":{"authors":[{"text":"Ruthrauff, Daniel R. 0000-0003-1355-9156 druthrauff@usgs.gov","orcid":"https://orcid.org/0000-0003-1355-9156","contributorId":4181,"corporation":false,"usgs":true,"family":"Ruthrauff","given":"Daniel","email":"druthrauff@usgs.gov","middleInitial":"R.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":730505,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dekinga, Anne","contributorId":203122,"corporation":false,"usgs":false,"family":"Dekinga","given":"Anne","email":"","affiliations":[{"id":36570,"text":"NIOZ Royal Netherlands Institute for Sea Research","active":true,"usgs":false}],"preferred":false,"id":730507,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gill, Robert E. Jr. 0000-0002-6385-4500 rgill@usgs.gov","orcid":"https://orcid.org/0000-0002-6385-4500","contributorId":171747,"corporation":false,"usgs":true,"family":"Gill","given":"Robert E.","suffix":"Jr.","email":"rgill@usgs.gov","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":730506,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Piersma, Theunis 0000-0001-9668-466X","orcid":"https://orcid.org/0000-0001-9668-466X","contributorId":203123,"corporation":false,"usgs":false,"family":"Piersma","given":"Theunis","email":"","affiliations":[{"id":36570,"text":"NIOZ Royal Netherlands Institute for Sea Research","active":true,"usgs":false}],"preferred":false,"id":730508,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70198052,"text":"70198052 - 2018 - Infectious canine hepatitis in a brown bear (Ursus arctos horribilis) from Alaska.","interactions":[],"lastModifiedDate":"2018-07-12T22:59:20","indexId":"70198052","displayToPublicDate":"2018-03-02T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Infectious canine hepatitis in a brown bear <i>(Ursus arctos horribilis)</i> from Alaska","title":"Infectious canine hepatitis in a brown bear (Ursus arctos horribilis) from Alaska.","docAbstract":"<p>We diagnosed infectious canine hepatitis in a free-ranging brown bear (<i>Ursus arctos horribilis</i>) cub from Alaska, US, found dead in October 2015. Intranuclear inclusion bodies were present in hepatocytes, and immunohistochemistry showed reactivity to adenoviral antigens. Sequencing of the hexon protein of adenovirus showed 100% identity to canine adenovirus 1.</p>","language":"English","publisher":"Wildlife Disease Association","doi":"10.7589/2017-10-245","usgsCitation":"Knowles, S., Bodenstein, B., Hamon, T., Saxton, M.W., and Hall, J.S., 2018, Infectious canine hepatitis in a brown bear (Ursus arctos horribilis) from Alaska.: Journal of Wildlife Diseases, v. 54, no. 3, p. 642-645, https://doi.org/10.7589/2017-10-245.","productDescription":"4 p.","startPage":"642","endPage":"645","ipdsId":"IP-091118","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":355624,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"3","publishingServiceCenter":{"id":15,"text":"Madison PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b46e5ade4b060350a15d1fc","contributors":{"authors":[{"text":"Knowles, Susan 0000-0002-0254-6491 sknowles@usgs.gov","orcid":"https://orcid.org/0000-0002-0254-6491","contributorId":5254,"corporation":false,"usgs":true,"family":"Knowles","given":"Susan","email":"sknowles@usgs.gov","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":739783,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bodenstein, Barbara L. 0000-0001-7946-0103 bbodenstein@usgs.gov","orcid":"https://orcid.org/0000-0001-7946-0103","contributorId":189820,"corporation":false,"usgs":true,"family":"Bodenstein","given":"Barbara","email":"bbodenstein@usgs.gov","middleInitial":"L.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":739784,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hamon, Troy","contributorId":206204,"corporation":false,"usgs":false,"family":"Hamon","given":"Troy","affiliations":[{"id":37282,"text":"Katmai National Park and Preserve, P.O. Box 7, King Salmon, Alaska, 99613, USA;","active":true,"usgs":false}],"preferred":false,"id":739786,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Saxton, Michael W.","contributorId":206205,"corporation":false,"usgs":false,"family":"Saxton","given":"Michael","email":"","middleInitial":"W.","affiliations":[{"id":37283,"text":"Katmai National Park and Preserve, P.O. Box 7, King Salmon, Alaska, 99613, USA; 3 School of Biological Sciences, Washington State University, Pullman, WA 99164, USA","active":true,"usgs":false}],"preferred":false,"id":739787,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hall, Jeffrey S. 0000-0001-5599-2826 jshall@usgs.gov","orcid":"https://orcid.org/0000-0001-5599-2826","contributorId":2254,"corporation":false,"usgs":true,"family":"Hall","given":"Jeffrey","email":"jshall@usgs.gov","middleInitial":"S.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":739785,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70202334,"text":"70202334 - 2018 - Volcanic ash deposition, eelgrass beds, and inshore habitat loss from the 1920s to the 1990s at Chignik, Alaska","interactions":[],"lastModifiedDate":"2019-02-22T16:48:55","indexId":"70202334","displayToPublicDate":"2018-03-01T16:48:50","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Volcanic ash deposition, eelgrass beds, and inshore habitat loss from the 1920s to the 1990s at Chignik, Alaska","docAbstract":"<p><span>We quantified the shallowing of the seafloor in five of six bays examined in the Chignik region of the Alaska&nbsp;Peninsula, confirming National Ocean Service observations that 1990s&nbsp;hydrographic surveys&nbsp;were shallower than previous surveys from the 1920s. Castle Bay, Chignik&nbsp;Lagoon, Hook Bay, Kujulik Bay and Mud Bay lost volume as calculated from Mean Lower Low Water (Chart Datum) to the deepest depths and four of these sites lost volume from Mean High Water to the deepest depths. Calculations relative to each datum were made because tidal datum records exhibited an increase in&nbsp;tidal range&nbsp;in this region from the 1920s to the 1990s. Our analysis showed that Mud Bay is quickly disappearing while Chignik Lagoon is being reduced to narrow channels. Anchorage Bay was the only site that increased in depth over time, perhaps due to erosion.&nbsp;Volcanoes&nbsp;dominate the landscape of the Chignik area. They have blanketed the region in deep ash deposits before the time frame of this study, and some have had smaller ash-producing eruptions during the time frame of this study.&nbsp;Remobilization&nbsp;of land-deposited ash and&nbsp;redeposition&nbsp;in marine areas - in some locations facilitated by extensive&nbsp;eelgrass&nbsp;(</span><span><i>Zostera marina</i></span><span>) beds (covering 54% of Chignik Lagoon and 68% of Mud Bay in 2010) - is the most likely cause of shallowing in the marine environment. Loss of&nbsp;shallow water&nbsp;marine habitat&nbsp;may alter future abundance and distribution of several fish,&nbsp;invertebrate&nbsp;and&nbsp;avian species.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecss.2017.12.001","usgsCitation":"Zimmermann, M., Ruggerone, G.T., Freymueller, J., Kinsman, N., Ward, D.H., and Hogrefe, K.R., 2018, Volcanic ash deposition, eelgrass beds, and inshore habitat loss from the 1920s to the 1990s at Chignik, Alaska: Estuarine, Coastal and Shelf Science, v. 202, p. 69-86, https://doi.org/10.1016/j.ecss.2017.12.001.","productDescription":"18 p.","startPage":"69","endPage":"86","ipdsId":"IP-088301","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":468937,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.ecss.2017.12.001","text":"Publisher Index Page"},{"id":437991,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7VQ31X8","text":"USGS data release","linkHelpText":"Map of eelgrass distribution and field survey points in Chignik Lagoon and Mud Bay, Alaska in 2010"},{"id":361480,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","city":"Chignik","volume":"202","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Zimmermann, Mark","contributorId":49479,"corporation":false,"usgs":true,"family":"Zimmermann","given":"Mark","affiliations":[],"preferred":false,"id":757875,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ruggerone, Gregory T.","contributorId":48068,"corporation":false,"usgs":true,"family":"Ruggerone","given":"Gregory","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":757876,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Freymueller, Jeffrey T.","contributorId":96841,"corporation":false,"usgs":false,"family":"Freymueller","given":"Jeffrey T.","affiliations":[{"id":26875,"text":"Michigan State University, East Lansing, MI","active":true,"usgs":false}],"preferred":false,"id":757877,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kinsman, Nicole","contributorId":95737,"corporation":false,"usgs":true,"family":"Kinsman","given":"Nicole","affiliations":[],"preferred":false,"id":757878,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ward, David H. 0000-0002-5242-2526 dward@usgs.gov","orcid":"https://orcid.org/0000-0002-5242-2526","contributorId":3247,"corporation":false,"usgs":true,"family":"Ward","given":"David","email":"dward@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":757874,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hogrefe, Kyle R. khogrefe@usgs.gov","contributorId":4264,"corporation":false,"usgs":true,"family":"Hogrefe","given":"Kyle","email":"khogrefe@usgs.gov","middleInitial":"R.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":757879,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70199155,"text":"70199155 - 2018 - Convergence of marine megafauna movement patterns in coastal and open oceans","interactions":[],"lastModifiedDate":"2018-09-07T14:11:59","indexId":"70199155","displayToPublicDate":"2018-03-01T14:11:45","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3164,"text":"Proceedings of the National Academy of Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Convergence of marine megafauna movement patterns in coastal and open oceans","docAbstract":"<p><span>The extent of increasing anthropogenic impacts on large marine vertebrates partly depends on the animals’ movement patterns. Effective conservation requires identification of the key drivers of movement including intrinsic properties and extrinsic constraints associated with the dynamic nature of the environments the animals inhabit. However, the relative importance of intrinsic versus extrinsic factors remains elusive. We analyze a global dataset of ∼2.8 million locations from &gt;2,600 tracked individuals across 50 marine vertebrates evolutionarily separated by millions of years and using different locomotion modes (fly, swim, walk/paddle). Strikingly, movement patterns show a remarkable convergence, being strongly conserved across species and independent of body length and mass, despite these traits ranging over 10 orders of magnitude among the species studied. This represents a fundamental difference between marine and terrestrial vertebrates not previously identified, likely linked to the reduced costs of locomotion in water. Movement patterns were primarily explained by the interaction between species-specific traits and the habitat(s) they move through, resulting in complex movement patterns when moving close to coasts compared with more predictable patterns when moving in open oceans. This distinct difference may be associated with greater complexity within coastal microhabitats, highlighting a critical role of preferred habitat in shaping marine vertebrate global movements. Efforts to develop understanding of the characteristics of vertebrate movement should consider the habitat(s) through which they move to identify how movement patterns will alter with forecasted severe ocean changes, such as reduced Arctic sea ice cover, sea level rise, and declining oxygen content.</span></p>","language":"English","publisher":"National Academy of Sciences of the United States of America","doi":"10.1073/pnas.1716137115","usgsCitation":"Sequeira, A., Rodriguez, J., Eguíluz, V., Harcourt, R., Hindell, M., Sims, D., Duarte, C., Costa, D., Fernandez-Gracia, J., Ferreira, L., Hays, G., Heupel, M., Meekan, M., Aven, A., Bailleul, F., Baylis, A.M., Berumen, M.L., Braun, C.D., Burns, J., Caley, M., Campbell, R., Carmichael, R., Clua, E., Einoder, L.D., Friedlaender, A., Goebel, M.E., Goldsworthy, S., Guinet, C., Gunn, J., Hamer, D., Hammerschlag, N., Hammill, M., Hückstädt, L., Humphries, N., Lea, M., Lowther, A., Mackay, A., McHuron, E., Mckenzie, J., McLeay, L., McMahon, C., Mengersen, K., Muelbert, M.M., Pagano, A.M., Page, B., Queiroz, N., Robinson, P.W., Shaffer, S.A., Shivji, M., Skomal, G., Thorrold, S., Villegas-Amtmann, S., Weise, M., Wells, R., Wetherbee, B., Wiebkin, A., Wienecke, B., and Thums, M., 2018, Convergence of marine megafauna movement patterns in coastal and open oceans: Proceedings of the National Academy of Sciences, v. 115, no. 12, p. 3072-3077, https://doi.org/10.1073/pnas.1716137115.","productDescription":"6 p.","startPage":"3072","endPage":"3077","ipdsId":"IP-089008","costCenters":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":468941,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1073/pnas.1716137115","text":"Publisher Index Page"},{"id":437992,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7RV0MK4","text":"USGS data release","linkHelpText":"Locations Collected 1985-2015 from Female Polar Bears (Ursus maritimus) with Dependent Young Instrumented in the Southern Beaufort Sea with Satellite-linked Transmitters by the USGS"},{"id":357121,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"12","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2018-02-26","publicationStatus":"PW","scienceBaseUri":"5b98a2eae4b0702d0e84300e","contributors":{"authors":[{"text":"Sequeira, A. M. M.","contributorId":207724,"corporation":false,"usgs":false,"family":"Sequeira","given":"A. M. M.","affiliations":[],"preferred":false,"id":744401,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rodriguez, J.P.","contributorId":207647,"corporation":false,"usgs":false,"family":"Rodriguez","given":"J.P.","email":"","affiliations":[{"id":37594,"text":"Instituto de Física Interdisciplinar y Sistemas Complejos","active":true,"usgs":false}],"preferred":false,"id":744402,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Eguíluz, V. M.","contributorId":207648,"corporation":false,"usgs":false,"family":"Eguíluz","given":"V. M.","affiliations":[{"id":37594,"text":"Instituto de Física Interdisciplinar y Sistemas Complejos","active":true,"usgs":false}],"preferred":false,"id":744403,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Harcourt, R.","contributorId":207649,"corporation":false,"usgs":false,"family":"Harcourt","given":"R.","affiliations":[{"id":16788,"text":"Macquarie University","active":true,"usgs":false}],"preferred":false,"id":744404,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hindell, M.","contributorId":207725,"corporation":false,"usgs":false,"family":"Hindell","given":"M.","email":"","affiliations":[],"preferred":false,"id":744405,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sims, D.W.","contributorId":207650,"corporation":false,"usgs":false,"family":"Sims","given":"D.W.","email":"","affiliations":[{"id":37595,"text":"Marine Biological Association of the United Kingdom","active":true,"usgs":false}],"preferred":false,"id":744406,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Duarte, C.M.","contributorId":207651,"corporation":false,"usgs":false,"family":"Duarte","given":"C.M.","email":"","affiliations":[{"id":37596,"text":"King Abdullah University of Science and Technology","active":true,"usgs":false}],"preferred":false,"id":744407,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Costa, D.P.","contributorId":207652,"corporation":false,"usgs":false,"family":"Costa","given":"D.P.","email":"","affiliations":[{"id":27155,"text":"University of California Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":744408,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Fernandez-Gracia, J.","contributorId":207653,"corporation":false,"usgs":false,"family":"Fernandez-Gracia","given":"J.","affiliations":[{"id":37594,"text":"Instituto de Física Interdisciplinar y Sistemas Complejos","active":true,"usgs":false}],"preferred":false,"id":744409,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Ferreira, L.C.","contributorId":207654,"corporation":false,"usgs":false,"family":"Ferreira","given":"L.C.","email":"","affiliations":[{"id":16662,"text":"University of Western Australia","active":true,"usgs":false}],"preferred":false,"id":744410,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Hays, G.C.","contributorId":178070,"corporation":false,"usgs":false,"family":"Hays","given":"G.C.","email":"","affiliations":[],"preferred":false,"id":744411,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Heupel, M. R.","contributorId":207655,"corporation":false,"usgs":false,"family":"Heupel","given":"M. R.","affiliations":[{"id":32935,"text":"Australian Institute of Marine Science","active":true,"usgs":false}],"preferred":false,"id":744412,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Meekan, M.G.","contributorId":207656,"corporation":false,"usgs":false,"family":"Meekan","given":"M.G.","affiliations":[{"id":16662,"text":"University of Western Australia","active":true,"usgs":false}],"preferred":false,"id":744413,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Aven, A.","contributorId":207657,"corporation":false,"usgs":false,"family":"Aven","given":"A.","email":"","affiliations":[{"id":37597,"text":"Dauphin Island Sea Lab and University of South Alabama","active":true,"usgs":false}],"preferred":false,"id":744414,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Bailleul, F.","contributorId":207658,"corporation":false,"usgs":false,"family":"Bailleul","given":"F.","email":"","affiliations":[{"id":37598,"text":"South Australian Research and Development Institute","active":true,"usgs":false}],"preferred":false,"id":744415,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Baylis, A. M. M.","contributorId":207659,"corporation":false,"usgs":false,"family":"Baylis","given":"A.","email":"","middleInitial":"M. M.","affiliations":[{"id":37599,"text":"South Atlantic Environmental Research Institute","active":true,"usgs":false}],"preferred":false,"id":744416,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Berumen, M. L.","contributorId":207660,"corporation":false,"usgs":false,"family":"Berumen","given":"M.","email":"","middleInitial":"L.","affiliations":[{"id":37596,"text":"King Abdullah University of Science and Technology","active":true,"usgs":false}],"preferred":false,"id":744417,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Braun, C. D.","contributorId":207661,"corporation":false,"usgs":false,"family":"Braun","given":"C.","email":"","middleInitial":"D.","affiliations":[{"id":12444,"text":"Massachusetts Institute of Technology","active":true,"usgs":false}],"preferred":false,"id":744418,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Burns, J.","contributorId":207720,"corporation":false,"usgs":false,"family":"Burns","given":"J.","email":"","affiliations":[],"preferred":false,"id":744490,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Caley, M.J.","contributorId":207662,"corporation":false,"usgs":false,"family":"Caley","given":"M.J.","email":"","affiliations":[{"id":37600,"text":"Queensland University of Technology","active":true,"usgs":false}],"preferred":false,"id":744419,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Campbell, R.","contributorId":207663,"corporation":false,"usgs":false,"family":"Campbell","given":"R.","affiliations":[{"id":37601,"text":"Centre for Insular Research and Observatory of the Environment","active":true,"usgs":false}],"preferred":false,"id":744420,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Carmichael, R.H.","contributorId":207664,"corporation":false,"usgs":false,"family":"Carmichael","given":"R.H.","email":"","affiliations":[{"id":37597,"text":"Dauphin Island Sea Lab and University of South Alabama","active":true,"usgs":false}],"preferred":false,"id":744421,"contributorType":{"id":1,"text":"Authors"},"rank":22},{"text":"Clua, E.","contributorId":207665,"corporation":false,"usgs":false,"family":"Clua","given":"E.","email":"","affiliations":[{"id":37602,"text":"PSL","active":true,"usgs":false}],"preferred":false,"id":744422,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"Einoder, L. D.","contributorId":207666,"corporation":false,"usgs":false,"family":"Einoder","given":"L.","email":"","middleInitial":"D.","affiliations":[{"id":12877,"text":"Charles Darwin University","active":true,"usgs":false}],"preferred":false,"id":744423,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Friedlaender, Ari","contributorId":207721,"corporation":false,"usgs":false,"family":"Friedlaender","given":"Ari","email":"","affiliations":[],"preferred":false,"id":744491,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"Goebel, M. E.","contributorId":207722,"corporation":false,"usgs":false,"family":"Goebel","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":744492,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Goldsworthy, S.D.","contributorId":207667,"corporation":false,"usgs":false,"family":"Goldsworthy","given":"S.D.","email":"","affiliations":[{"id":37598,"text":"South Australian Research and Development Institute","active":true,"usgs":false}],"preferred":false,"id":744424,"contributorType":{"id":1,"text":"Authors"},"rank":27},{"text":"Guinet, C.","contributorId":207668,"corporation":false,"usgs":false,"family":"Guinet","given":"C.","email":"","affiliations":[{"id":37603,"text":"Université de La Rochelle","active":true,"usgs":false}],"preferred":false,"id":744425,"contributorType":{"id":1,"text":"Authors"},"rank":28},{"text":"Gunn, J.","contributorId":207669,"corporation":false,"usgs":false,"family":"Gunn","given":"J.","email":"","affiliations":[{"id":16662,"text":"University of Western Australia","active":true,"usgs":false}],"preferred":false,"id":744426,"contributorType":{"id":1,"text":"Authors"},"rank":29},{"text":"Hamer, D.","contributorId":207670,"corporation":false,"usgs":false,"family":"Hamer","given":"D.","email":"","affiliations":[{"id":37604,"text":"DBMS Global Oceans","active":true,"usgs":false}],"preferred":false,"id":744427,"contributorType":{"id":1,"text":"Authors"},"rank":30},{"text":"Hammerschlag, N.","contributorId":207671,"corporation":false,"usgs":false,"family":"Hammerschlag","given":"N.","email":"","affiliations":[{"id":5112,"text":"University of Miami","active":true,"usgs":false}],"preferred":false,"id":744428,"contributorType":{"id":1,"text":"Authors"},"rank":31},{"text":"Hammill, M.","contributorId":207672,"corporation":false,"usgs":false,"family":"Hammill","given":"M.","email":"","affiliations":[{"id":37605,"text":"Maurice Lamontagne Institute","active":true,"usgs":false}],"preferred":false,"id":744429,"contributorType":{"id":1,"text":"Authors"},"rank":32},{"text":"Hückstädt, L.A.","contributorId":207673,"corporation":false,"usgs":false,"family":"Hückstädt","given":"L.A.","affiliations":[{"id":27155,"text":"University of California Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":744430,"contributorType":{"id":1,"text":"Authors"},"rank":33},{"text":"Humphries, N.E.","contributorId":207674,"corporation":false,"usgs":false,"family":"Humphries","given":"N.E.","email":"","affiliations":[{"id":37595,"text":"Marine Biological Association of the United Kingdom","active":true,"usgs":false}],"preferred":false,"id":744431,"contributorType":{"id":1,"text":"Authors"},"rank":34},{"text":"Lea, M.-A.","contributorId":207677,"corporation":false,"usgs":false,"family":"Lea","given":"M.-A.","email":"","affiliations":[{"id":16141,"text":"University of Tasmania","active":true,"usgs":false}],"preferred":false,"id":744434,"contributorType":{"id":1,"text":"Authors"},"rank":35},{"text":"Lowther, A.","contributorId":207678,"corporation":false,"usgs":false,"family":"Lowther","given":"A.","email":"","affiliations":[{"id":7238,"text":"Norwegian Polar Institute","active":true,"usgs":false}],"preferred":false,"id":744435,"contributorType":{"id":1,"text":"Authors"},"rank":36},{"text":"Mackay, A.","contributorId":207679,"corporation":false,"usgs":false,"family":"Mackay","given":"A.","email":"","affiliations":[{"id":37598,"text":"South Australian Research and Development Institute","active":true,"usgs":false}],"preferred":false,"id":744436,"contributorType":{"id":1,"text":"Authors"},"rank":37},{"text":"McHuron, E.","contributorId":207680,"corporation":false,"usgs":false,"family":"McHuron","given":"E.","email":"","affiliations":[{"id":27155,"text":"University of California Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":744437,"contributorType":{"id":1,"text":"Authors"},"rank":38},{"text":"Mckenzie, J.","contributorId":207681,"corporation":false,"usgs":false,"family":"Mckenzie","given":"J.","email":"","affiliations":[{"id":37607,"text":"Department of Environment Water & Natural Resources","active":true,"usgs":false}],"preferred":false,"id":744438,"contributorType":{"id":1,"text":"Authors"},"rank":39},{"text":"McLeay, L.","contributorId":207682,"corporation":false,"usgs":false,"family":"McLeay","given":"L.","email":"","affiliations":[{"id":37598,"text":"South Australian Research and Development Institute","active":true,"usgs":false}],"preferred":false,"id":744439,"contributorType":{"id":1,"text":"Authors"},"rank":40},{"text":"McMahon, C.R.","contributorId":207683,"corporation":false,"usgs":false,"family":"McMahon","given":"C.R.","email":"","affiliations":[{"id":16788,"text":"Macquarie University","active":true,"usgs":false}],"preferred":false,"id":744440,"contributorType":{"id":1,"text":"Authors"},"rank":41},{"text":"Mengersen, K.","contributorId":207684,"corporation":false,"usgs":false,"family":"Mengersen","given":"K.","email":"","affiliations":[{"id":37600,"text":"Queensland University of Technology","active":true,"usgs":false}],"preferred":false,"id":744441,"contributorType":{"id":1,"text":"Authors"},"rank":42},{"text":"Muelbert, M. M. C.","contributorId":207685,"corporation":false,"usgs":false,"family":"Muelbert","given":"M.","email":"","middleInitial":"M. C.","affiliations":[{"id":18107,"text":"Sydney Institute of Marine Science","active":true,"usgs":false}],"preferred":false,"id":744442,"contributorType":{"id":1,"text":"Authors"},"rank":43},{"text":"Pagano, Anthony M. 0000-0003-2176-0909 apagano@usgs.gov","orcid":"https://orcid.org/0000-0003-2176-0909","contributorId":3884,"corporation":false,"usgs":true,"family":"Pagano","given":"Anthony","email":"apagano@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":744400,"contributorType":{"id":1,"text":"Authors"},"rank":44},{"text":"Page, B.","contributorId":207686,"corporation":false,"usgs":false,"family":"Page","given":"B.","email":"","affiliations":[{"id":37598,"text":"South Australian Research and Development Institute","active":true,"usgs":false}],"preferred":false,"id":744443,"contributorType":{"id":1,"text":"Authors"},"rank":45},{"text":"Queiroz, N.","contributorId":207687,"corporation":false,"usgs":false,"family":"Queiroz","given":"N.","affiliations":[{"id":37595,"text":"Marine Biological Association of the United Kingdom","active":true,"usgs":false}],"preferred":false,"id":744444,"contributorType":{"id":1,"text":"Authors"},"rank":46},{"text":"Robinson, P. W.","contributorId":207723,"corporation":false,"usgs":false,"family":"Robinson","given":"P.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":744445,"contributorType":{"id":1,"text":"Authors"},"rank":47},{"text":"Shaffer, S. A.","contributorId":207689,"corporation":false,"usgs":false,"family":"Shaffer","given":"S.","email":"","middleInitial":"A.","affiliations":[{"id":24620,"text":"San Jose State University","active":true,"usgs":false}],"preferred":false,"id":744446,"contributorType":{"id":1,"text":"Authors"},"rank":48},{"text":"Shivji, M.","contributorId":207690,"corporation":false,"usgs":false,"family":"Shivji","given":"M.","email":"","affiliations":[{"id":13165,"text":"Nova Southeastern University","active":true,"usgs":false}],"preferred":false,"id":744447,"contributorType":{"id":1,"text":"Authors"},"rank":49},{"text":"Skomal, G. B.","contributorId":207676,"corporation":false,"usgs":false,"family":"Skomal","given":"G. B.","affiliations":[{"id":37606,"text":"Massachusetts Marine Fisheries","active":true,"usgs":false}],"preferred":false,"id":744433,"contributorType":{"id":1,"text":"Authors"},"rank":50},{"text":"Thorrold, S.","contributorId":207691,"corporation":false,"usgs":false,"family":"Thorrold","given":"S.","affiliations":[{"id":36711,"text":"Woods Hole Oceanographic Institution","active":true,"usgs":false}],"preferred":false,"id":744448,"contributorType":{"id":1,"text":"Authors"},"rank":51},{"text":"Villegas-Amtmann, S.","contributorId":207692,"corporation":false,"usgs":false,"family":"Villegas-Amtmann","given":"S.","email":"","affiliations":[{"id":27155,"text":"University of California Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":744449,"contributorType":{"id":1,"text":"Authors"},"rank":52},{"text":"Weise, M.","contributorId":147175,"corporation":false,"usgs":false,"family":"Weise","given":"M.","email":"","affiliations":[],"preferred":false,"id":744450,"contributorType":{"id":1,"text":"Authors"},"rank":53},{"text":"Wells, R.","contributorId":40403,"corporation":false,"usgs":true,"family":"Wells","given":"R.","affiliations":[],"preferred":false,"id":744451,"contributorType":{"id":1,"text":"Authors"},"rank":54},{"text":"Wetherbee, B.","contributorId":207693,"corporation":false,"usgs":false,"family":"Wetherbee","given":"B.","email":"","affiliations":[{"id":37608,"text":"Australian Antarctic Division","active":true,"usgs":false}],"preferred":false,"id":744452,"contributorType":{"id":1,"text":"Authors"},"rank":55},{"text":"Wiebkin, A.","contributorId":207694,"corporation":false,"usgs":false,"family":"Wiebkin","given":"A.","email":"","affiliations":[{"id":37598,"text":"South Australian Research and Development Institute","active":true,"usgs":false}],"preferred":false,"id":744453,"contributorType":{"id":1,"text":"Authors"},"rank":56},{"text":"Wienecke, B.","contributorId":207695,"corporation":false,"usgs":false,"family":"Wienecke","given":"B.","email":"","affiliations":[{"id":6922,"text":"University of Rhode Island","active":true,"usgs":false}],"preferred":false,"id":744454,"contributorType":{"id":1,"text":"Authors"},"rank":57},{"text":"Thums, M.","contributorId":207696,"corporation":false,"usgs":false,"family":"Thums","given":"M.","affiliations":[{"id":16662,"text":"University of Western Australia","active":true,"usgs":false}],"preferred":false,"id":744455,"contributorType":{"id":1,"text":"Authors"},"rank":58}]}}
,{"id":70201634,"text":"70201634 - 2018 - Modeling wildfire-induced permafrost deformation in an Alaskan boreal forest using InSAR observations","interactions":[],"lastModifiedDate":"2022-04-22T16:43:48.161005","indexId":"70201634","displayToPublicDate":"2018-03-01T13:51:03","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3250,"text":"Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Modeling wildfire-induced permafrost deformation in an Alaskan boreal forest using InSAR observations","docAbstract":"<p><span>The discontinuous permafrost zone is one of the world’s most sensitive areas to climate change. Alaskan boreal forest is underlain by discontinuous permafrost, and wildfires are one of the most influential agents negatively impacting the condition of permafrost in the arctic region. Using interferometric synthetic aperture radar (InSAR) of Advanced Land Observation Satellite (ALOS) Phased Array type L-band Synthetic Aperture Radar (PALSAR) images, we mapped extensive permafrost degradation over interior Alaskan boreal forest in Yukon Flats, induced by the 2009 Big Creek wildfire. Our analyses showed that fire-induced permafrost degradation in the second post-fire thawing season contributed up to 20 cm of ground surface subsidence. We generated post-fire deformation time series and introduced a model that exploited the deformation time series to estimate fire-induced permafrost degradation and changes in active layer thickness. The model showed a wildfire-induced increase of up to 80 cm in active layer thickness in the second post-fire year due to pore-ice permafrost thawing. The model also showed up to 15 cm of permafrost degradation due to excess-ice thawing with little or no increase in active layer thickness. The uncertainties of the estimated change in active layer thickness and the thickness of thawed excess ice permafrost are 27.77 and 1.50 cm, respectively. Our results demonstrate that InSAR-derived deformation measurements along with physics models are capable of quantifying fire-induced permafrost degradation in Alaskan boreal forests underlain by discontinuous permafrost. Our results also have illustrated that fire-induced increase of active layer thickness and excess ice thawing contributed to ground surface subsidence.</span></p>","language":"English","publisher":"MDPI","doi":"10.3390/rs10030405","usgsCitation":"Molan, Y.E., Kim, J., Lu, Z., Wylie, B.K., and Zhu, Z., 2018, Modeling wildfire-induced permafrost deformation in an Alaskan boreal forest using InSAR observations: Remote Sensing, v. 10, no. 3, 405, 17 p., https://doi.org/10.3390/rs10030405.","productDescription":"405, 17 p.","ipdsId":"IP-090332","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":5055,"text":"Land Change Science","active":true,"usgs":true}],"links":[{"id":468942,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/rs10030405","text":"Publisher Index Page"},{"id":360566,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -147.25,\n              65.67\n            ],\n            [\n              -146,\n              65.67\n            ],\n            [\n              -146,\n              66.33\n            ],\n            [\n              -147.25,\n              66.33\n            ],\n            [\n              -147.25,\n              65.67\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"10","issue":"3","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2018-03-06","publicationStatus":"PW","scienceBaseUri":"5c1b66e7e4b0708288c71d3a","contributors":{"authors":[{"text":"Molan, Yusef Eshqi","contributorId":211707,"corporation":false,"usgs":false,"family":"Molan","given":"Yusef","email":"","middleInitial":"Eshqi","affiliations":[{"id":20300,"text":"Southern Methodist University","active":true,"usgs":false}],"preferred":false,"id":754668,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kim, Jin-Woo","contributorId":211708,"corporation":false,"usgs":false,"family":"Kim","given":"Jin-Woo","email":"","affiliations":[{"id":20300,"text":"Southern Methodist University","active":true,"usgs":false}],"preferred":false,"id":754669,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lu, Zhong","contributorId":199794,"corporation":false,"usgs":false,"family":"Lu","given":"Zhong","affiliations":[],"preferred":false,"id":754670,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wylie, Bruce K. 0000-0002-7374-1083 wylie@usgs.gov","orcid":"https://orcid.org/0000-0002-7374-1083","contributorId":750,"corporation":false,"usgs":true,"family":"Wylie","given":"Bruce","email":"wylie@usgs.gov","middleInitial":"K.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":754671,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zhu, Zhiliang 0000-0002-6860-6936 zzhu@usgs.gov","orcid":"https://orcid.org/0000-0002-6860-6936","contributorId":150078,"corporation":false,"usgs":true,"family":"Zhu","given":"Zhiliang","email":"zzhu@usgs.gov","affiliations":[{"id":505,"text":"Office of the AD Climate and Land-Use Change","active":true,"usgs":true},{"id":5055,"text":"Land Change Science","active":true,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":411,"text":"National Climate Change and Wildlife Science Center","active":true,"usgs":true}],"preferred":true,"id":754667,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70236613,"text":"70236613 - 2018 - Application of imaging spectroscopy for mineral exploration in Alaska: A study over porphyry Cu deposits in the eastern Alaska Range","interactions":[],"lastModifiedDate":"2022-09-13T11:58:59.256404","indexId":"70236613","displayToPublicDate":"2018-03-01T06:50:06","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Application of imaging spectroscopy for mineral exploration in Alaska: A study over porphyry Cu deposits in the eastern Alaska Range","docAbstract":"<div id=\"114214517\" class=\"article-section-wrapper js-article-section js-content-section  \"><p>The U.S. Geological Survey tested the utility of imaging spectroscopy (also referred to as hyperspectral remote sensing) as an aid to regional mineral exploration efforts in remote parts of Alaska. Airborne imaging spectrometer data were collected in 2014 over unmined porphyry Cu deposits in the eastern Alaska Range using the HyMap™ sensor. Maps of the distributions of predominant minerals, made by matching reflectance signatures in the remotely sensed data to reference spectra in the shortwave infrared region, do not uniquely discriminate individual rock units. However, they do highlight hydrothermal alteration associated with porphyry deposits and prospects hosted mostly within the Nabesna pluton. In and around porphyry Cu deposits at Orange Hill and Bond Creek, unique spectral signatures are related to variations in chlorite and white mica abundance and their chemical composition. This is best revealed in the longer-wavelength 2,200-nm Al-OH absorption feature positions in pixels spectrally dominated by white mica proximal to porphyry deposits. Similar spectral signatures of chlorite and white mica wavelength positions were also recognized away from the porphyry deposits; follow-up sampling identified these satellite areas to also contain Cu-Mo-Au mineralized rock. Our study confirms that airborne imaging spectroscopy has application for regional mineral exploration in exposed mountainous terrain in Alaska.</p></div>","language":"English","publisher":"Society of Economic Geologists","doi":"10.5382/econgeo.2018.4559","usgsCitation":"Graham, G.E., Kokaly, R.F., Kelley, K.D., Hoefen, T.M., Johnson, M., and Hubbard, B.E., 2018, Application of imaging spectroscopy for mineral exploration in Alaska: A study over porphyry Cu deposits in the eastern Alaska Range: Economic Geology, v. 113, no. 2, p. 489.-510, https://doi.org/10.5382/econgeo.2018.4559.","productDescription":"22 p.","startPage":"489.","endPage":"510","ipdsId":"IP-087274","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":468946,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5382/econgeo.2018.4559","text":"Publisher Index Page"},{"id":406586,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.7421875,\n              57.7041472343419\n            ],\n            [\n              -140.5810546875,\n              57.7041472343419\n            ],\n            [\n              -140.5810546875,\n              65.38514722188857\n            ],\n            [\n              -155.7421875,\n              65.38514722188857\n            ],\n            [\n              -155.7421875,\n              57.7041472343419\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"113","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Graham, Garth E. 0000-0003-0657-0365 ggraham@usgs.gov","orcid":"https://orcid.org/0000-0003-0657-0365","contributorId":1031,"corporation":false,"usgs":true,"family":"Graham","given":"Garth","email":"ggraham@usgs.gov","middleInitial":"E.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":851501,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kokaly, Raymond F. 0000-0003-0276-7101","orcid":"https://orcid.org/0000-0003-0276-7101","contributorId":205165,"corporation":false,"usgs":true,"family":"Kokaly","given":"Raymond","email":"","middleInitial":"F.","affiliations":[{"id":5078,"text":"Southwest Regional Director's Office","active":true,"usgs":true},{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":851502,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kelley, Karen D. 0000-0002-3232-5809 kdkelley@usgs.gov","orcid":"https://orcid.org/0000-0002-3232-5809","contributorId":179012,"corporation":false,"usgs":true,"family":"Kelley","given":"Karen","email":"kdkelley@usgs.gov","middleInitial":"D.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":851503,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hoefen, Todd M. 0000-0002-3083-5987 thoefen@usgs.gov","orcid":"https://orcid.org/0000-0002-3083-5987","contributorId":403,"corporation":false,"usgs":true,"family":"Hoefen","given":"Todd","email":"thoefen@usgs.gov","middleInitial":"M.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":851504,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, Michaela 0000-0001-6133-0247 mrjohns@usgs.gov","orcid":"https://orcid.org/0000-0001-6133-0247","contributorId":182462,"corporation":false,"usgs":true,"family":"Johnson","given":"Michaela","email":"mrjohns@usgs.gov","affiliations":[],"preferred":true,"id":851505,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hubbard, Bernard E. 0000-0002-9315-2032","orcid":"https://orcid.org/0000-0002-9315-2032","contributorId":213146,"corporation":false,"usgs":true,"family":"Hubbard","given":"Bernard","email":"","middleInitial":"E.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":851506,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70196370,"text":"70196370 - 2018 - High‐prevalence and low‐intensity Ichthyophonus infections in Pacific Halibut","interactions":[],"lastModifiedDate":"2018-04-04T10:52:20","indexId":"70196370","displayToPublicDate":"2018-03-01T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2177,"text":"Journal of Aquatic Animal Health","active":true,"publicationSubtype":{"id":10}},"displayTitle":"High‐prevalence and low‐intensity <i>Ichthyophonus</i> infections in Pacific Halibut","title":"High‐prevalence and low‐intensity Ichthyophonus infections in Pacific Halibut","docAbstract":"<p><i>Ichthyophonus</i><span><span>&nbsp;</span>occurred at high prevalence but low intensity in Pacific Halibut<span>&nbsp;</span></span><i>Hippoglossus stenolepis</i><span><span>&nbsp;</span>throughout the West Coast of North America, ranging from coastal Oregon to the Bering Sea. Infection prevalence in adults was variable on spatial and temporal scales, with the lowest prevalence typically occurring on the edges of the geographic range and highest prevalence consistently occurring inside Prince William Sound, Alaska (58–77%). Additionally, intra‐annual differences occurred at Albatross–Portlock, Alaska (71% versus 32% within 2012), and interannual differences occurred along coastal Oregon (50% in 2012 versus 12% in 2015). The infection prevalence was influenced by host age, increasing from 3% or less among the youngest cohorts (age&nbsp;≤&nbsp;6) to 39–54% among age‐9–17 cohorts, then decreasing to 27% among the oldest (age‐18+) cohorts. There was little indication of significant disease impacts to Pacific Halibut, as the intensity of infection was uniformly low and length at age was similar between infected and uninfected cohorts. These results suggest that<span>&nbsp;</span></span><i>Ichthyophonus</i><span><span>&nbsp;</span>in Pacific Halibut currently represents a stable parasite–host paradigm in the North Pacific.</span></p>","language":"English","publisher":"Wiley","doi":"10.1002/aah.10011","usgsCitation":"Hershberger, P., Gregg, J.L., and Dykstra, C.L., 2018, High‐prevalence and low‐intensity Ichthyophonus infections in Pacific Halibut: Journal of Aquatic Animal Health, v. 30, no. 1, p. 13-19, https://doi.org/10.1002/aah.10011.","productDescription":"7 p.","startPage":"13","endPage":"19","ipdsId":"IP-084401","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":353135,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -190,\n              44\n            ],\n            [\n              -120,\n              44\n            ],\n            [\n              -120,\n              62\n            ],\n            [\n              -190,\n              62\n            ],\n            [\n              -190,\n              44\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"30","issue":"1","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2018-03-29","publicationStatus":"PW","scienceBaseUri":"5afee70fe4b0da30c1bfc0ac","contributors":{"authors":[{"text":"Hershberger, Paul 0000-0002-2261-7760 phershberger@usgs.gov","orcid":"https://orcid.org/0000-0002-2261-7760","contributorId":150816,"corporation":false,"usgs":true,"family":"Hershberger","given":"Paul","email":"phershberger@usgs.gov","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":732639,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gregg, Jacob L. 0000-0001-5328-5482 jgregg@usgs.gov","orcid":"https://orcid.org/0000-0001-5328-5482","contributorId":203912,"corporation":false,"usgs":true,"family":"Gregg","given":"Jacob","email":"jgregg@usgs.gov","middleInitial":"L.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":732640,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dykstra, Claude L.","contributorId":203913,"corporation":false,"usgs":false,"family":"Dykstra","given":"Claude","email":"","middleInitial":"L.","affiliations":[{"id":36755,"text":"International Pacific Halibut Commission, 2320 West Commodore Way, Suite 300, Seattle, WA  98199","active":true,"usgs":false}],"preferred":false,"id":732641,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70195753,"text":"70195753 - 2018 - The geochemistry of loess: Asian and North American deposits compared","interactions":[],"lastModifiedDate":"2018-02-28T11:10:32","indexId":"70195753","displayToPublicDate":"2018-02-28T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2184,"text":"Journal of Asian Earth Sciences","active":true,"publicationSubtype":{"id":10}},"title":"The geochemistry of loess: Asian and North American deposits compared","docAbstract":"<p><span>Loess is widely distributed over Asia and North America and constitutes one of the most important surficial deposits that serve as terrestrial records of the Quaternary. The oldest Pleistocene loess in China is likely ∼2.6 Ma, thus spanning much or all of the Pleistocene. In North America, most loess is no older than the penultimate glacial period, with the exception of Alaska, where the record may go back to ∼3.0 Ma. On both continents, loess deposits date primarily to glacial periods, and interglacial or interstadial periods are represented by paleosols. Both glacial and non-glacial sources of silts that comprise the bulk of loess deposits are found on both continents. Although loess has been considered to be representative of the average upper continental crust, there are regionally distinctive compositions of loess in both Asia and North America. Loess deposits in Asia from Yakutia, Tajikistan, and China have compositionally distinct major element compositions, due to varying abundances of silicate minerals, carbonate minerals, and clay minerals. In North America, loess in the Mississippi River valley, the Great Plains, and Alaska are also distinguishable with regard to major element composition that reflects highly diverse source sediments. Trace element geochemistry (Sc-Th-Zr and the rare earth elements) also shows regional diversity of loess bodies, in both Asia and North America. On both continents, most loess bodies show significant contributions from later-cycle, altered sedimentary rocks, as opposed to direct derivation from igneous rocks. Further, some loess bodies have detectable contributions from mafic igneous rocks as well as major contributions from average, upper-crustal, felsic rocks. Intercalated paleosols in loess sections show geochemical compositions that differ significantly from the underlying loess parent materials. Ratios of soluble-to-insoluble elements show depletions in paleosols due to chemical weathering losses of calcite, dolomite, plagioclase, mica, apatite, and smectite. In Asia and North America, the last interglacial paleosol is more weathered than equivalent modern soils, which could be due either to a climate that was warmer and more humid, a longer period of pedogenesis, or both. In Asia, early Pleistocene loess and paleosols are both more weathered than those from the middle and late Pleistocene, forming prior to a mid-Pleistocene aridification of Asia from uplift of the Tibetan Plateau. Understanding the geochemistry of loess and paleosols can tell us much about past atmospheric circulation, past temperature and moisture regimes, and even tectonic processes.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jseaes.2017.10.032","usgsCitation":"Muhs, D.R., 2018, The geochemistry of loess: Asian and North American deposits compared: Journal of Asian Earth Sciences, v. 155, p. 81-115, https://doi.org/10.1016/j.jseaes.2017.10.032.","productDescription":"35 p.","startPage":"81","endPage":"115","ipdsId":"IP-091000","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":461011,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.jseaes.2017.10.032","text":"Publisher Index Page"},{"id":352125,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"155","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5afee714e4b0da30c1bfc0ec","contributors":{"authors":[{"text":"Muhs, Daniel R. 0000-0001-7449-251X dmuhs@usgs.gov","orcid":"https://orcid.org/0000-0001-7449-251X","contributorId":140288,"corporation":false,"usgs":true,"family":"Muhs","given":"Daniel","email":"dmuhs@usgs.gov","middleInitial":"R.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":false,"id":729791,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70200603,"text":"70200603 - 2018 - Neoproterozoic–early Paleozoic provenance evolution of sedimentary rocks in and adjacent to the Farewell terrane (interior Alaska)","interactions":[],"lastModifiedDate":"2018-10-25T12:04:55","indexId":"70200603","displayToPublicDate":"2018-02-26T12:04:46","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1820,"text":"Geosphere","active":true,"publicationSubtype":{"id":10}},"title":"Neoproterozoic–early Paleozoic provenance evolution of sedimentary rocks in and adjacent to the Farewell terrane (interior Alaska)","docAbstract":"<p>New detrital zircon U-Pb data from the Farewell terrane of interior Alaska illuminate its early provenance evolution and connections with other Alaskan terranes. Five samples come from Neoproterozoic units in the central Farewell terrane. Basal “ferruginous beds” and the overlying Windy Fork Formation have prominent detrital zircon age populations between 2000 and 1800 Ma, with the Windy Fork Formation also having major age peaks between 700 and 600 Ma. Younger (Lone Formation) samples yield grains mainly between 750 and 550 Ma, with fewer older Proterozoic grains. Eleven samples come from deep-water early Paleozoic rocks (southeastern Farewell terrane). Ordovician sandstone (Post River Formation) has a major age population at ca. 490 Ma and subordinate 785–550 Ma populations that overlap age peaks in the Lone Formation. Turbidites in the overlying Terra Cotta Mountains Sandstone (Silurian) yield distinctly different spectra, with major ca. 450–420 Ma age populations and numerous grains between 2000 and 900 Ma. Devonian Barren Ridge Limestone samples have spectra like those of the Terra Cotta Mountains Sandstone, plus some Early Devonian grains. The Silurian shift in detrital zircon age spectra coincides with a major influx of siliciclastic sediment suggestive of a tectonic (collisional?) event involving the Farewell terrane. Neoproterozoic through Devonian successions in the Arctic Alaska–Chukotka and Alexander terranes show a similar up-section shift in detrital zircon spectra, supporting links between these terranes and the Farewell terrane during the early Paleozoic. Detrital zircon ages from the White Mountains and Livengood terranes, adjacent to the northern Farewell terrane, include major early Paleozoic populations that overlap those seen in partly coeval Farewell strata.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/GES01470.1","usgsCitation":"Dumoulin, J.A., Jones, J.V., Bradley, D., Till, A.B., Box, S.E., and O’Sullivan, P.B., 2018, Neoproterozoic–early Paleozoic provenance evolution of sedimentary rocks in and adjacent to the Farewell terrane (interior Alaska): Geosphere, v. 14, no. 2, p. 367-394, https://doi.org/10.1130/GES01470.1.","productDescription":"28 p.","startPage":"367","endPage":"394","ipdsId":"IP-093382","costCenters":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"links":[{"id":468972,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/ges01470.1","text":"Publisher Index Page"},{"id":438000,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7PV6JKZ","text":"USGS data release","linkHelpText":"U-Pb Isotopic Data and Ages of Detrital Zircon Grains and Graptolite Fossil Data from Selected Rocks from the Western Alaska Range, Livengood area, and Seward Peninsula, Alaska - 2018"},{"id":358811,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","volume":"14","issue":"2","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2018-02-26","publicationStatus":"PW","scienceBaseUri":"5c10aa07e4b034bf6a7e55cf","contributors":{"authors":[{"text":"Dumoulin, Julie A. 0000-0003-1754-1287 dumoulin@usgs.gov","orcid":"https://orcid.org/0000-0003-1754-1287","contributorId":203209,"corporation":false,"usgs":true,"family":"Dumoulin","given":"Julie","email":"dumoulin@usgs.gov","middleInitial":"A.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":749703,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, James V. III 0000-0002-6602-5935 jvjones@usgs.gov","orcid":"https://orcid.org/0000-0002-6602-5935","contributorId":201245,"corporation":false,"usgs":true,"family":"Jones","given":"James","suffix":"III","email":"jvjones@usgs.gov","middleInitial":"V.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":749704,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bradley, Dwight 0000-0001-9116-5289 bradleyorchard2@gmail.com","orcid":"https://orcid.org/0000-0001-9116-5289","contributorId":2358,"corporation":false,"usgs":true,"family":"Bradley","given":"Dwight","email":"bradleyorchard2@gmail.com","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":749705,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Till, Alison B. 0000-0002-6640-6877 atill@usgs.gov","orcid":"https://orcid.org/0000-0002-6640-6877","contributorId":210053,"corporation":false,"usgs":true,"family":"Till","given":"Alison","email":"atill@usgs.gov","middleInitial":"B.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":749706,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Box, Stephen E. 0000-0002-5268-8375 sbox@usgs.gov","orcid":"https://orcid.org/0000-0002-5268-8375","contributorId":1843,"corporation":false,"usgs":true,"family":"Box","given":"Stephen","email":"sbox@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":749707,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"O’Sullivan, Paul B.","contributorId":193544,"corporation":false,"usgs":false,"family":"O’Sullivan","given":"Paul","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":749708,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70195500,"text":"70195500 - 2018 - Plateau subduction, intraslab seismicity, and the Denali (Alaska) volcanic gap","interactions":[],"lastModifiedDate":"2018-02-20T10:08:36","indexId":"70195500","displayToPublicDate":"2018-02-20T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Plateau subduction, intraslab seismicity, and the Denali (Alaska) volcanic gap","docAbstract":"Tectonic tremors in Alaska (USA) are associated with subduction of the Yakutat plateau, but their origins are unclear due to lack of depth constraints. We have processed tremor recordings to extract low-frequency earthquakes (LFEs), and generated a set of six LFE waveform templates via iterative network matched filtering and stacking. The timing of impulsive P (compressional) wave and S (shear) wave arrivals on template waveforms places LFEs at 40–58 km depth, near the upper envelope of intraslab seismicity and immediately updip of increased levels of intraslab seismicity. S waves at near-epicentral distances display polarities consistent with shear slip on the plate boundary. We compare characteristics of LFEs, seismicity, and tectonic structures in central Alaska with those in warm subduction zones, and propose a new model for the region’s unusual intraslab seismicity and the enigmatic Denali volcanic gap (i.e., an area of no volcanism where expected). We argue that fluids in the Yakutat plate are confined to its upper crust, and that shallow subduction leads to hydromechanical conditions at the slab interface in central Alaska akin to those in warm subduction zones where similar LFEs and tremor occur. These conditions lead to fluid expulsion at shallow depths, explaining strike-parallel alignment of tremor occurrence with the Denali volcanic gap. Moreover, the lack of double seismic zone and restriction of deep intraslab seismicity to a persistent low-velocity zone are simple consequences of anhydrous conditions prevailing in the lower crust and upper mantle of the Yakutat plate.","language":"English","publisher":"Geological Society of America","doi":"10.1130/G38867.1","usgsCitation":"Chuang, L.Y., Bostock, M., Wech, A., and Plourde, A., 2018, Plateau subduction, intraslab seismicity, and the Denali (Alaska) volcanic gap: Geology, v. 45, no. 7, p. 647-650, https://doi.org/10.1130/G38867.1.","productDescription":"4 p.","startPage":"647","endPage":"650","ipdsId":"IP-081838","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":468986,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2429/64405","text":"External Repository"},{"id":351811,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Denali volcanic gap","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -184.39453125,\n              49.95121990866204\n            ],\n            [\n              -137.63671875,\n              49.95121990866204\n            ],\n            [\n              -137.63671875,\n              70.90226826757711\n            ],\n            [\n              -184.39453125,\n              70.90226826757711\n            ],\n            [\n              -184.39453125,\n              49.95121990866204\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"45","issue":"7","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2017-05-08","publicationStatus":"PW","scienceBaseUri":"5afee72ae4b0da30c1bfc15a","contributors":{"authors":[{"text":"Chuang, Lindsay Yuling","contributorId":173691,"corporation":false,"usgs":false,"family":"Chuang","given":"Lindsay","email":"","middleInitial":"Yuling","affiliations":[{"id":27275,"text":"Department of Earth Sciences, National Taiwan Normal University","active":true,"usgs":false}],"preferred":false,"id":728930,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bostock, Michael","contributorId":202572,"corporation":false,"usgs":false,"family":"Bostock","given":"Michael","email":"","affiliations":[{"id":36484,"text":"UBC","active":true,"usgs":false}],"preferred":false,"id":728931,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wech, Aaron 0000-0003-4983-1991","orcid":"https://orcid.org/0000-0003-4983-1991","contributorId":202561,"corporation":false,"usgs":true,"family":"Wech","given":"Aaron","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":728929,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Plourde, Alexandre","contributorId":202573,"corporation":false,"usgs":false,"family":"Plourde","given":"Alexandre","email":"","affiliations":[{"id":36484,"text":"UBC","active":true,"usgs":false}],"preferred":false,"id":728932,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70194443,"text":"sir20175150 - 2018 - Postglacial eruptive history and geochemistry of Semisopochnoi volcano, western Aleutian Islands, Alaska","interactions":[],"lastModifiedDate":"2019-12-30T11:27:36","indexId":"sir20175150","displayToPublicDate":"2018-02-14T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2017-5150","title":"Postglacial eruptive history and geochemistry of Semisopochnoi volcano, western Aleutian Islands, Alaska","docAbstract":"<p>Semisopochnoi Island, located in the Rat Islands group of the western Aleutian Islands and Aleutian volcanic arc, is a roughly circular island composed of scattered volcanic vents, the prominent caldera of Semisopochnoi volcano, and older, ancestral volcanic rocks. The oldest rocks on the island are gently radially dipping lavas that are the remnants of a shield volcano and of Ragged Top, which is an eroded stratocone southeast of the current caldera. None of these oldest rocks have been dated, but they all are likely Pleistocene in age. Anvil Peak, to the caldera’s north, has the morphology of a young stratocone and is latest Pleistocene to early Holocene in age. The oldest recognized Holocene deposits are those of the caldera-forming eruption, which produced the 7- by 6-km caldera in the center of the island, left nonwelded ignimbrite in valleys below the edifice, and left welded ignimbrite high on its flanks. The caldera-forming eruption produced rocks showing a range of intermediate whole-rock compositions throughout the eruption sequence, although a majority of clasts analyzed form a fairly tight cluster on SiO<sub>2</sub>-variation diagrams at 62.9 to 63.4 weight percent SiO<sub>2</sub>. This clustering of compositions at about 63 weight percent SiO<sub>2</sub> includes black, dense, obsidian-like clasts, as well as tan, variably oxidized, highly inflated pumice clasts. The best estimate for the timing of the eruption is from a soil dated at 6,920±60 <sup>14</sup>C years before present underlying a thin facies of the ignimbrite deposit on the island’s north coast. Shortly after the caldera-forming eruption, two scoria cones on the northwest flank of the volcano outside the caldera, Ringworm crater and Threequarter Cone, simultaneously erupted small volumes of andesite.</p><p>The oldest intracaldera lavas, on the floor of the caldera, are andesitic to dacitic, but are mostly covered by younger lavas and tephras. These intracaldera lavas include the basaltic andesites of small Windy cone, as well as the more voluminous basaltic andesites of three-peaked Mount Cerberus, which takes up most of the west half of the caldera and has erupted lavas that flowed to the sea on the southwestern coast of the island. Apparently active at the same time as Mount Cerberus, extracaldera Sugarloaf Peak at the southern point of the island has exclusively erupted basalts. Its young satellite peak, Sugarloaf Head, has erupted morphologically young lavas and cinder cones and may be the source of the last&nbsp;historical eruption in 1987. Several tephra sections on the east half of the island record as many as 50 tephras, mostly from Mount Cerberus, Sugarloaf Peak, and Sugarloaf Head, over the past several thousand years.</p><p>Eruptive products of Semisopochnoi Island show an overall compositional range of basalt to dacite, though basaltic andesite and andesite constitute the largest proportions of rock types. They are tholeiitic, low to medium K, and have geochemical characteristics typical of magmatic arcs. The earliest Pleistocene lavas are mostly basalts that show the greatest geochemical diversity, as illustrated by, for example, La<sub>N</sub>/Yb<sub>N</sub> ratios of 1.9 to 3.5, suggesting fluctuations in the magma source region over the hundreds of thousands of years recorded by these older lavas. The Holocene rocks, in contrast, follow arrays in compositional space that suggest crystallization differentiation from discrete, subtly different batches of magma under varying pressure and temperature conditions. Increasingly negative Eu anomalies and an only modestly increasing alumina saturation index value with differentiation suggest that plagioclase and mafic silicates (amphibole and pyroxene) were involved to varying degrees in fractional crystallization to produce Semisopochnoi’s magmatic diversity. The crystal-poor, andesitic magmas that erupted during caldera formation likely separated from a plagioclase-, amphibole-, and clinopyroxene-dominated crystal residue in the upper crust at less than 900 °C, possibly following a period of decreased magmatic flux. During the Holocene, basaltic Sugarloaf Peak appears to bypass any upper crustal magmatic storage region and erupt crystal-rich basalts. Recent seismic swarms and long-lived warm springs attest to ongoing magmatic activity.</p><p>The Holocene eruptive record at Semisopochnoi volcano is one of diverse eruptive styles as well as frequent eruptions from multiple vents located within and outside the caldera. The number and diversity of postcaldera vents means that the sites of future eruptions cannot be predicted with certainty. Future eruptions of ash similar in magnitude to the VEI 3 or less eruptions recorded in the documented tephra deposits would pose a hazard to aircraft in the region.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20175150","usgsCitation":"Coombs, M.L., Larsen, J.F., and Neal, C.A., 2018, Postglacial eruptive history and geochemistry of Semisopochnoi volcano, western Aleutian Islands, Alaska: U.S. Geological Survey Scientific Investigations Report 2017–5150, 33 p., https://doi.org/10.3133/sir20175150.","productDescription":"Report: iv, 33 p.; 2 Tables","numberOfPages":"40","onlineOnly":"Y","ipdsId":"IP-067229","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":438015,"rank":5,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P925UXOR","text":"USGS data release","linkHelpText":"Digital geologic map data for Semisopochnoi Island, Alaska"},{"id":351618,"rank":4,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/sir/2017/5150/sir20175150_table2.xlsx","text":"Table 2","size":"65 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"SIR 2017-5150","linkHelpText":" - Matrix-glass compositions of pyroclasts from Semisopochnoi volcano and Amchitka Island, Alaska, as determined by electron microprobe"},{"id":351617,"rank":3,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/sir/2017/5150/sir20175150_table1.xlsx","text":"Table 1","size":"100 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"SIR 2017-5150","linkHelpText":" - Whole-rock compositions, locations, and descriptions of lava and tephra samples from Semisopochnoi Island, Alaska"},{"id":351615,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2017/5150/coverthb.jpg"},{"id":351616,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2017/5150/sir20175150.pdf","text":"Report","size":"15 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2017-5150"}],"country":"United States","state":"Alaska","otherGeospatial":"Semisopochnoi Volcano","contact":"<p><a href=\"https://avo.alaska.edu/\" data-mce-href=\"https://avo.alaska.edu/\">Alaska Volcano Observatory</a><br><a href=\"https://usgs.gov\" data-mce-href=\"https://usgs.gov\">U.S. Geological Survey</a><br>4210 University Drive<br>Anchorage, AK 99508</p>","tableOfContents":"<ul><li>Abstract<br></li><li>Introduction<br></li><li>Semisopochnoi Island<br></li><li>Analytical Methods and Data Compilation<br></li><li>Compositional Overview<br></li><li>Precaldera Eruptive Products<br></li><li>Products of the Caldera-Forming Eruption<br></li><li>Postcaldera Deposits and History<br></li><li>Discussion<br></li><li>Conclusions<br></li><li>Acknowledgments<br></li><li>References Cited<br></li></ul>","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"publishedDate":"2018-02-14","noUsgsAuthors":false,"publicationDate":"2018-02-14","publicationStatus":"PW","scienceBaseUri":"5afee72fe4b0da30c1bfc194","contributors":{"authors":[{"text":"Coombs, Michelle L. 0000-0002-6002-6806 mcoombs@usgs.gov","orcid":"https://orcid.org/0000-0002-6002-6806","contributorId":2809,"corporation":false,"usgs":true,"family":"Coombs","given":"Michelle","email":"mcoombs@usgs.gov","middleInitial":"L.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":723838,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Larsen, Jessica F.","contributorId":200930,"corporation":false,"usgs":false,"family":"Larsen","given":"Jessica","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":723840,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Neal, Christina A. 0000-0002-7697-7825 tneal@usgs.gov","orcid":"https://orcid.org/0000-0002-7697-7825","contributorId":639,"corporation":false,"usgs":true,"family":"Neal","given":"Christina","email":"tneal@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":723839,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70195083,"text":"70195083 - 2018 - Dietary plasticity in a nutrient-rich system does not influence brown bear (Ursus arctos) body condition or denning","interactions":[],"lastModifiedDate":"2018-04-02T13:49:47","indexId":"70195083","displayToPublicDate":"2018-02-08T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3093,"text":"Polar Biology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Dietary plasticity in a nutrient-rich system does not influence brown bear (<i>Ursus arctos</i>) body condition or denning","title":"Dietary plasticity in a nutrient-rich system does not influence brown bear (Ursus arctos) body condition or denning","docAbstract":"<p><span>Behavioral differences within a population can allow use of a greater range of resources among individuals. The brown bear (</span><i class=\"EmphasisTypeItalic \">Ursus arctos</i><span>) is a generalist omnivore that occupies diverse habitats and displays considerable plasticity in food use. We evaluated whether brown bear foraging that resulted in deviations from a proposed optimal diet influenced body condition and, in turn, denning duration in Lake Clark National Park and Preserve, Alaska. To assess assimilated diet, we used sectioned guard hair samples (</span><i class=\"EmphasisTypeItalic \">n</i><span>&nbsp;=&nbsp;23) collected in autumn to determine stable carbon and nitrogen isotope ratios. To index proportional contributions of meat and vegetation to assimilated diets, we compared the carbon (δ</span><sup>13</sup><span>C) and nitrogen (δ</span><sup>15</sup><span>N) values of hair samples with the values identified for major food categories. We then compared percentage body fat and body mass in relation to the proportion of assimilated meat in the diet using linear models. We also examined the influence of autumn percentage body fat and mass on denning duration. Percentage body fat was not influenced by the proportion of assimilated meat in the diet. Additionally, percentage body fat and body mass did not influence denning duration. However, body mass of bears assimilating proportionately more meat was greater than bears assimilating less meat. Our results provide support for previous findings that larger bears consume higher amounts of protein to maintain their body size and therefore forage further from the proposed optimal diet. Additionally, our results demonstrate that individuals can achieve similar biological outcomes (e.g., percentage body fat) despite variable foraging strategies, suggesting that individuals within generalist populations may confer an adaptive advantage through behavioral plasticity.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00300-017-2237-6","usgsCitation":"Mangipane, L.S., Belant, J.L., Lafferty, D., Gustine, D.D., Hiller, T.L., Colvin, M., Mangipane, B.A., and Hilderbrand, G., 2018, Dietary plasticity in a nutrient-rich system does not influence brown bear (Ursus arctos) body condition or denning: Polar Biology, v. 41, no. 4, p. 763-772, https://doi.org/10.1007/s00300-017-2237-6.","productDescription":"10 p.","startPage":"763","endPage":"772","ipdsId":"IP-081926","costCenters":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":351349,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155,\n              59.75\n            ],\n            [\n              -152.75,\n              59.75\n            ],\n            [\n              -152.75,\n              61\n            ],\n            [\n              -155,\n              61\n            ],\n            [\n              -155,\n              59.75\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"41","issue":"4","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2017-12-27","publicationStatus":"PW","scienceBaseUri":"5a7d6ff9e4b00f54eb244183","contributors":{"authors":[{"text":"Mangipane, Lindsey S.","contributorId":200447,"corporation":false,"usgs":false,"family":"Mangipane","given":"Lindsey","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":726862,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Belant, Jerrold L.","contributorId":108394,"corporation":false,"usgs":false,"family":"Belant","given":"Jerrold","email":"","middleInitial":"L.","affiliations":[{"id":35599,"text":"Carnivore Ecology Laboratory, Mississippi State University, Mississippi State, MS","active":true,"usgs":false}],"preferred":false,"id":726863,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lafferty, Diana J. R.","contributorId":201733,"corporation":false,"usgs":false,"family":"Lafferty","given":"Diana J. R.","affiliations":[{"id":36244,"text":"MSU","active":true,"usgs":false}],"preferred":false,"id":726864,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gustine, David D. dgustine@usgs.gov","contributorId":3776,"corporation":false,"usgs":true,"family":"Gustine","given":"David","email":"dgustine@usgs.gov","middleInitial":"D.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":726865,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hiller, Tim L.","contributorId":200448,"corporation":false,"usgs":false,"family":"Hiller","given":"Tim","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":726866,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Colvin, Michael E.","contributorId":140975,"corporation":false,"usgs":false,"family":"Colvin","given":"Michael E.","affiliations":[{"id":6680,"text":"Oregon State University","active":true,"usgs":false}],"preferred":false,"id":726867,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Mangipane, Buck A.","contributorId":200450,"corporation":false,"usgs":false,"family":"Mangipane","given":"Buck","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":726868,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Hilderbrand, Grant V. 0000-0002-0051-8315 ghilderbrand@usgs.gov","orcid":"https://orcid.org/0000-0002-0051-8315","contributorId":199764,"corporation":false,"usgs":true,"family":"Hilderbrand","given":"Grant V.","email":"ghilderbrand@usgs.gov","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":false,"id":726861,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70195341,"text":"70195341 - 2018 - Mercury concentrations in multiple tissues of Kittlitz's murrelets (Brachyramphus brevirostris)","interactions":[],"lastModifiedDate":"2018-04-27T16:43:08","indexId":"70195341","displayToPublicDate":"2018-02-08T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2676,"text":"Marine Pollution Bulletin","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Mercury concentrations in multiple tissues of Kittlitz's murrelets (<i>Brachyramphus brevirostris</i>)","title":"Mercury concentrations in multiple tissues of Kittlitz's murrelets (Brachyramphus brevirostris)","docAbstract":"Mercury (Hg) is a non-essential, toxic metal that is distributed worldwide. Mercury biomagnifies in food webs and can threaten the health of top predators such as seabirds. The Kittlitz's murrelet (Brachyramphus brevirostris) is a seabird endemic to Alaska and the Russian Far East and is a species of conservation concern in the region. We determined Hg concentrations in eggshells, guano, blood, and feathers of Kittlitz's murrelets sampled from four locations in Alaska. Mercury concentrations in eggshells, guano, and blood were low compared to other seabird species. Mean Hg concentrations of breast feathers from Adak Island and Glacier Bay were significantly greater than those from Agattu Island or Icy Bay. Two Kittlitz's murrelets at Glacier Bay and one Kittlitz's murrelet at Adak Island had Hg concentrations above those associated with impaired reproduction in other bird species, and may merit further investigation as a potential threat to individuals and populations.","language":"English","publisher":"Elsevier","doi":"10.1016/j.marpolbul.2017.10.055","usgsCitation":"Kenney, L.A., Kaler, R.S., Kissling, M.L., Bond, A.L., and Eagles-Smith, C.A., 2018, Mercury concentrations in multiple tissues of Kittlitz's murrelets (Brachyramphus brevirostris): Marine Pollution Bulletin, v. 129, no. 2, p. 675-680, https://doi.org/10.1016/j.marpolbul.2017.10.055.","productDescription":"6 p.","startPage":"675","endPage":"680","ipdsId":"IP-079784","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":351386,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -187.55859375,\n              51.069016659603896\n            ],\n            [\n              -135.263671875,\n              51.069016659603896\n            ],\n            [\n              -135.263671875,\n              60.84491057364912\n            ],\n            [\n              -187.55859375,\n              60.84491057364912\n            ],\n            [\n              -187.55859375,\n              51.069016659603896\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"129","issue":"2","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a7d6ff8e4b00f54eb24416e","contributors":{"authors":[{"text":"Kenney, Leah A.","contributorId":202222,"corporation":false,"usgs":false,"family":"Kenney","given":"Leah","email":"","middleInitial":"A.","affiliations":[{"id":6661,"text":"US Fish and Wildlife Service","active":true,"usgs":false}],"preferred":false,"id":727906,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kaler, Robb S.","contributorId":202223,"corporation":false,"usgs":false,"family":"Kaler","given":"Robb","email":"","middleInitial":"S.","affiliations":[{"id":6661,"text":"US Fish and Wildlife Service","active":true,"usgs":false}],"preferred":false,"id":727907,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kissling, Michelle L.","contributorId":172675,"corporation":false,"usgs":false,"family":"Kissling","given":"Michelle","email":"","middleInitial":"L.","affiliations":[{"id":6654,"text":"USFWS","active":true,"usgs":false}],"preferred":false,"id":727908,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bond, Alexander L.","contributorId":202224,"corporation":false,"usgs":false,"family":"Bond","given":"Alexander","email":"","middleInitial":"L.","affiliations":[{"id":36373,"text":"Ardenna Research","active":true,"usgs":false}],"preferred":false,"id":727909,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Eagles-Smith, Collin A. 0000-0003-1329-5285 ceagles-smith@usgs.gov","orcid":"https://orcid.org/0000-0003-1329-5285","contributorId":505,"corporation":false,"usgs":true,"family":"Eagles-Smith","given":"Collin","email":"ceagles-smith@usgs.gov","middleInitial":"A.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":727905,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70195321,"text":"70195321 - 2018 - Concentrations of environmental DNA (eDNA) reflect spawning salmon abundance at fine spatial and temporal scales","interactions":[],"lastModifiedDate":"2018-02-08T13:58:24","indexId":"70195321","displayToPublicDate":"2018-02-08T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1015,"text":"Biological Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Concentrations of environmental DNA (eDNA) reflect spawning salmon abundance at fine spatial and temporal scales","docAbstract":"<p><span>Developing fast, cost-effective assessments of wild animal abundance is an important goal for many researchers, and environmental DNA (eDNA) holds much promise for this purpose. However, the quantitative relationship between species abundance and the amount of DNA present in the environment is likely to vary substantially among taxa and with ecological context. Here, we report a strong quantitative relationship between eDNA concentration and the abundance of spawning sockeye salmon in a small stream in Alaska, USA, where we took temporally- and spatially-replicated samples during the spawning period. This high-resolution dataset suggests that (1) eDNA concentrations vary significantly day-to-day, and likely within hours, in the context of the dynamic biological event of a salmon spawning season; (2) eDNA, as detected by species-specific quantitative PCR probes, seems to be conserved over short distances (tens of meters) in running water, but degrade quickly over larger scales (ca. 1.5 km); and (3) factors other than the mere presence of live, individual fish — such as location within the stream, live/dead ratio, and water temperature — can affect the eDNA-biomass correlation in space or time. A multivariate model incorporating both biotic and abiotic variables accounted for over 75% of the eDNA variance observed, suggesting that where a system is well-characterized, it may be possible to predict species' abundance from eDNA surveys, although we underscore that species- and system-specific variables are likely to limit the generality of any given quantitative model. Nevertheless, these findings provide an important step toward quantitative applications of eDNA in conservation and management.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.biocon.2018.01.030","usgsCitation":"Tillotson, M.D., Kelly, R.P., Duda, J.J., Hoy, M.S., Kralj, J., and Quinn, T.P., 2018, Concentrations of environmental DNA (eDNA) reflect spawning salmon abundance at fine spatial and temporal scales: Biological Conservation, v. 220, p. 1-11, https://doi.org/10.1016/j.biocon.2018.01.030.","productDescription":"11 p.","startPage":"1","endPage":"11","ipdsId":"IP-089550","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":469008,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.biocon.2018.01.030","text":"Publisher Index Page"},{"id":438018,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7K073HH","text":"USGS data release","linkHelpText":"Concentrations of environmental DNA (eDNA) during sockeye salmon spawning in 2016, Hansen Creek, Alaska, USA"},{"id":351365,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Hansen Creek","volume":"220","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a7d6ff8e4b00f54eb244176","contributors":{"authors":[{"text":"Tillotson, Michael D.","contributorId":202117,"corporation":false,"usgs":false,"family":"Tillotson","given":"Michael","email":"","middleInitial":"D.","affiliations":[{"id":36354,"text":"University of Washington, School of Aquatic and Fishery Sciences, Box 355020, Seattle, WA 98195-5020","active":true,"usgs":false}],"preferred":false,"id":727832,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kelly, Ryan P.","contributorId":202201,"corporation":false,"usgs":false,"family":"Kelly","given":"Ryan","email":"","middleInitial":"P.","affiliations":[{"id":36369,"text":"University of Washington, School of Marine and Environmental Affairs, 3710 Brooklyn Ave NE, Seattle, WA  98105. USA","active":true,"usgs":false}],"preferred":false,"id":727833,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Duda, Jeffrey J. 0000-0001-7431-8634 jduda@usgs.gov","orcid":"https://orcid.org/0000-0001-7431-8634","contributorId":148954,"corporation":false,"usgs":true,"family":"Duda","given":"Jeffrey","email":"jduda@usgs.gov","middleInitial":"J.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":727831,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hoy, Marshal S. 0000-0003-2828-9697 mhoy@usgs.gov","orcid":"https://orcid.org/0000-0003-2828-9697","contributorId":3033,"corporation":false,"usgs":true,"family":"Hoy","given":"Marshal","email":"mhoy@usgs.gov","middleInitial":"S.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":727834,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kralj, James","contributorId":202118,"corporation":false,"usgs":false,"family":"Kralj","given":"James","email":"","affiliations":[{"id":36355,"text":"University of Washington, School of Marine and Environmental Affairs, 3710 Brooklyn Ave. NE, Seattle, WA 98105","active":true,"usgs":false}],"preferred":false,"id":727835,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Quinn, Thomas P.","contributorId":167272,"corporation":false,"usgs":false,"family":"Quinn","given":"Thomas","email":"","middleInitial":"P.","affiliations":[{"id":24671,"text":"School of Aquatic and Fsiery Sciences, UW, Box 355020, Seattle, WA","active":true,"usgs":false}],"preferred":false,"id":727836,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70195200,"text":"70195200 - 2018 - Molecular testing of adult Pacific salmon and trout (Oncorhynchus spp.) for several RNA viruses demonstrates widespread distribution of piscine orthoreovirus in Alaska and Washington","interactions":[],"lastModifiedDate":"2018-02-07T12:44:31","indexId":"70195200","displayToPublicDate":"2018-02-07T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2286,"text":"Journal of Fish Diseases","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Molecular testing of adult Pacific salmon and trout (<i>Oncorhynchus</i> spp.) for several RNA viruses demonstrates widespread distribution of piscine orthoreovirus in Alaska and Washington","title":"Molecular testing of adult Pacific salmon and trout (Oncorhynchus spp.) for several RNA viruses demonstrates widespread distribution of piscine orthoreovirus in Alaska and Washington","docAbstract":"<p><span>This research was initiated in conjunction with a systematic, multiagency surveillance effort in the United States (U.S.) in response to reported findings of infectious salmon anaemia virus (ISAV) RNA in British Columbia, Canada. In the systematic surveillance study reported in a companion paper, tissues from various salmonids taken from Washington and Alaska were surveyed for ISAV RNA using the U.S.-approved diagnostic method, and samples were released for use in this present study only after testing negative. Here, we tested a subset of these samples for ISAV RNA with three additional published molecular assays, as well as for RNA from salmonid alphavirus (SAV), piscine myocarditis virus (PMCV) and piscine orthoreovirus (PRV). All samples (</span><i>n</i><span>&nbsp;=&nbsp;2,252; 121 stock cohorts) tested negative for RNA from ISAV, PMCV, and SAV. In contrast, there were 25 stock cohorts from Washington and Alaska that had one or more individuals test positive for PRV RNA; prevalence within stocks varied and ranged from 2% to 73%. The overall prevalence of PRV RNA-positive individuals across the study was 3.4% (77 of 2,252 fish tested). Findings of PRV RNA were most common in coho (</span><i>Oncorhynchus kisutch</i><span><span>&nbsp;</span>Walbaum) and Chinook (</span><i>O.&nbsp;tshawytscha</i><span><span>&nbsp;</span>Walbaum) salmon.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/jfd.12740","usgsCitation":"Purcell, M.K., Thompson, R.L., Evered, J., Kerwin, J., Meyers, T.R., Stewart, B., and Winton, J., 2018, Molecular testing of adult Pacific salmon and trout (Oncorhynchus spp.) for several RNA viruses demonstrates widespread distribution of piscine orthoreovirus in Alaska and Washington: Journal of Fish Diseases, v. 41, no. 2, p. 347-355, https://doi.org/10.1111/jfd.12740.","productDescription":"13 p.","startPage":"347","endPage":"355","ipdsId":"IP-082523","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":469011,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/jfd.12740","text":"Publisher Index Page"},{"id":438019,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7VX0F1H","text":"USGS data release","linkHelpText":"Final Dataset: Molecular testing of adult Pacific salmon and trout (Oncorhynchus spp.) for several RNA viruses demonstrates widespread distribution of piscine orthoreovirus (PRV) in Alaska and Washington"},{"id":351241,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska, Washington","volume":"41","issue":"2","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2017-11-21","publicationStatus":"PW","scienceBaseUri":"5a7c1e6be4b00f54eb229282","contributors":{"authors":[{"text":"Purcell, Maureen K. 0000-0003-0154-8433 mpurcell@usgs.gov","orcid":"https://orcid.org/0000-0003-0154-8433","contributorId":168475,"corporation":false,"usgs":true,"family":"Purcell","given":"Maureen","email":"mpurcell@usgs.gov","middleInitial":"K.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":727405,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thompson, Rachel L. 0000-0001-6901-4361 rlthompson@usgs.gov","orcid":"https://orcid.org/0000-0001-6901-4361","contributorId":5707,"corporation":false,"usgs":true,"family":"Thompson","given":"Rachel","email":"rlthompson@usgs.gov","middleInitial":"L.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":727406,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Evered, Joy","contributorId":127579,"corporation":false,"usgs":false,"family":"Evered","given":"Joy","affiliations":[{"id":7061,"text":"U.S. FWS, DOI","active":true,"usgs":false}],"preferred":false,"id":727407,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kerwin, John","contributorId":127577,"corporation":false,"usgs":false,"family":"Kerwin","given":"John","email":"","affiliations":[{"id":7060,"text":"Washington State Department of Fish and Wildlife","active":true,"usgs":false}],"preferred":false,"id":727408,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Meyers, Ted R.","contributorId":202026,"corporation":false,"usgs":false,"family":"Meyers","given":"Ted","email":"","middleInitial":"R.","affiliations":[{"id":36327,"text":"Alaska Department of Fish and Game, Division of Commercial Fisheries, 1255 W. 8th Street Juneau, AK 99802, USA","active":true,"usgs":false}],"preferred":false,"id":727409,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stewart, Bruce","contributorId":127576,"corporation":false,"usgs":false,"family":"Stewart","given":"Bruce","email":"","affiliations":[{"id":7059,"text":"Northwest Indian Fisheries Commission","active":true,"usgs":false}],"preferred":false,"id":727410,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Winton, James 0000-0002-3505-5509 jwinton@usgs.gov","orcid":"https://orcid.org/0000-0002-3505-5509","contributorId":179330,"corporation":false,"usgs":true,"family":"Winton","given":"James","email":"jwinton@usgs.gov","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":727411,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70273480,"text":"70273480 - 2018 - Aeolian stratigraphy describes ice-age paleoenvironments in unglaciated Arctic Alaska","interactions":[],"lastModifiedDate":"2026-01-16T15:02:31.587765","indexId":"70273480","displayToPublicDate":"2018-02-06T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Aeolian stratigraphy describes ice-age paleoenvironments in unglaciated Arctic Alaska","docAbstract":"<p><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"><span>Terrestrial paleoenvironmental records with high dating resolution extending into the last ice age are rare from the western Arctic. Such records can test the synchronicity and extent of ice-age climatic events and define how Arctic landscapes respond to rapid climate changes. Here we describe the stratigraphy and&nbsp;sedimentology&nbsp;of a&nbsp;</span><i>yedoma</i><span>&nbsp;deposit in Arctic Alaska (the Carter Section) dating to between 37,000 and 9000 calibrated radiocarbon years BP (37–9 ka) and containing detailed records of loess and sand-sheet sedimentation, soil development,&nbsp;carbon storage, and permafrost dynamics. Alternation between sand-sheet and loess deposition provides a proxy for the extent and activity of the Ikpikpuk Sand Sea (ISS), a large&nbsp;dune field&nbsp;located immediately upwind. Warm, moist&nbsp;interstadial&nbsp;times (ca. 37, 36.3–32.5, and 15–13 ka) triggered floodplain&nbsp;aggradation, permafrost thaw, reduced loess deposition, increased vegetation cover, and rapid soil development accompanied by enhanced&nbsp;carbon storage. During the&nbsp;Last Glacial Maximum&nbsp;(LGM, ca. 28–18 ka), rapid loess deposition took place on a landscape where vegetation was sparse and non-woody. The most intense&nbsp;aeolian activity&nbsp;occurred after the LGM between ca. 18 and 15 ka when sand sheets fringing the ISS expanded over the site, possibly in response to increasingly droughty conditions as summers warmed and active layers deepened. With the exception of this lagged LGM response, the record of&nbsp;aeolian activity&nbsp;at the Carter Section correlates with other paleoenvironmental records from unglaciated&nbsp;Siberia&nbsp;and Alaska. Overall, rapid shifts in&nbsp;geomorphology, soils, vegetation, and permafrost portray an ice-age landscape where, in contrast to the&nbsp;Holocene, environmental change was chronic and dominated by aeolian processes.</span></span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.quascirev.2018.01.002","usgsCitation":"Gaglioti, B.V., Mann, D.H., Groves, P., Kunz, M.L., Farquharson, L.M., Reanier, R.E., Jones, B.M., and Wooller, M.J., 2018, Aeolian stratigraphy describes ice-age paleoenvironments in unglaciated Arctic Alaska: Quaternary Science Reviews, v. 182, p. 175-190, https://doi.org/10.1016/j.quascirev.2018.01.002.","productDescription":"16 p.","startPage":"175","endPage":"190","ipdsId":"IP-080444","costCenters":[{"id":118,"text":"Alaska Science Center Geography","active":true,"usgs":true}],"links":[{"id":498738,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"North Slope","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -169.01434119137934,\n              69.46006826079085\n            ],\n            [\n              -167.21578223335098,\n              68.03869926703291\n            ],\n            [\n              -151.13574463185043,\n              67.84176222340056\n            ],\n            [\n              -149.15883154858946,\n              71.72244393088454\n            ],\n            [\n              -164.17595949150558,\n              70.9129056043337\n            ],\n            [\n              -169.01434119137934,\n              69.46006826079085\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"182","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Gaglioti, Benjamin V.","contributorId":365187,"corporation":false,"usgs":false,"family":"Gaglioti","given":"Benjamin","middleInitial":"V.","affiliations":[{"id":7171,"text":"Columbia University","active":true,"usgs":false}],"preferred":false,"id":953887,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mann, Daniel H.","contributorId":175207,"corporation":false,"usgs":false,"family":"Mann","given":"Daniel","middleInitial":"H.","affiliations":[{"id":6695,"text":"UAF","active":true,"usgs":false}],"preferred":false,"id":953888,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Groves, Pamela","contributorId":193132,"corporation":false,"usgs":false,"family":"Groves","given":"Pamela","email":"","affiliations":[],"preferred":false,"id":953889,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kunz, Michael L.","contributorId":365189,"corporation":false,"usgs":false,"family":"Kunz","given":"Michael","middleInitial":"L.","affiliations":[],"preferred":false,"id":953890,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Farquharson, Louise M.","contributorId":175206,"corporation":false,"usgs":false,"family":"Farquharson","given":"Louise","middleInitial":"M.","affiliations":[{"id":6695,"text":"UAF","active":true,"usgs":false}],"preferred":false,"id":953892,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Reanier, Richard E.","contributorId":365190,"corporation":false,"usgs":false,"family":"Reanier","given":"Richard","middleInitial":"E.","affiliations":[{"id":87073,"text":"Reanier Associates","active":true,"usgs":false}],"preferred":false,"id":953891,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Jones, Benjamin M. 0000-0002-1517-4711 bjones@usgs.gov","orcid":"https://orcid.org/0000-0002-1517-4711","contributorId":2286,"corporation":false,"usgs":true,"family":"Jones","given":"Benjamin","email":"bjones@usgs.gov","middleInitial":"M.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":118,"text":"Alaska Science Center Geography","active":true,"usgs":true}],"preferred":true,"id":953893,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Wooller, Matthew J.","contributorId":267776,"corporation":false,"usgs":false,"family":"Wooller","given":"Matthew","middleInitial":"J.","affiliations":[{"id":6752,"text":"University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":953894,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70195256,"text":"70195256 - 2018 - A systematic surveillance programme for infectious salmon anaemia virus supports its absence in the Pacific Northwest of the United States","interactions":[],"lastModifiedDate":"2018-02-06T17:19:31","indexId":"70195256","displayToPublicDate":"2018-02-06T00:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2286,"text":"Journal of Fish Diseases","active":true,"publicationSubtype":{"id":10}},"title":"A systematic surveillance programme for infectious salmon anaemia virus supports its absence in the Pacific Northwest of the United States","docAbstract":"<p><span>In response to reported findings of infectious salmon anaemia virus (ISAV) in British Columbia (BC), Canada, in 2011, U.S. national, state and tribal fisheries managers and fish health specialists developed and implemented a collaborative ISAV surveillance plan for the Pacific Northwest region of the United States. Accordingly, over a 3-1/2-year period, 4,962 salmonids were sampled and successfully tested by real-time reverse-transcription PCR. The sample set included multiple tissues from free-ranging Pacific salmonids from coastal regions of Alaska and Washington and farmed Atlantic salmon (</span><i>Salmo salar</i><span><span>&nbsp;</span>L.) from Washington, all representing fish exposed to marine environments. The survey design targeted physiologically compromised or moribund animals more vulnerable to infection as well as species considered susceptible to ISAV. Samples were handled with a documented chain of custody and testing protocols, and criteria for interpretation of test results were defined in advance. All 4,962 completed tests were negative for ISAV RNA. Results of this surveillance effort provide sound evidence to support the absence of ISAV in represented populations of free-ranging and marine-farmed salmonids on the northwest coast of the United States.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/jfd.12733","usgsCitation":"Gustafson, L.L., Creekmore, L.H., Snekvik, K.R., Ferguson, J.A., Warg, J.V., Blair, M., Meyers, T.R., Stewart, B., Warheit, K.I., Kerwin, J., Goodwin, A.E., Rhodes, L.D., Whaley, J.E., Purcell, M., Bentz, C., Shasa, D., Bader, J., and Winton, J., 2018, A systematic surveillance programme for infectious salmon anaemia virus supports its absence in the Pacific Northwest of the United States: Journal of Fish Diseases, v. 41, no. 2, p. 337-346, https://doi.org/10.1111/jfd.12733.","productDescription":"10 p.","startPage":"337","endPage":"346","ipdsId":"IP-085891","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":469033,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1111/jfd.12733","text":"External Repository"},{"id":351213,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Pacific Northwest","volume":"41","issue":"2","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2017-11-21","publicationStatus":"PW","scienceBaseUri":"5a7acd14e4b00f54eb20c570","contributors":{"authors":[{"text":"Gustafson, Lori L.","contributorId":202106,"corporation":false,"usgs":false,"family":"Gustafson","given":"Lori","email":"","middleInitial":"L.","affiliations":[{"id":36346,"text":"USDA, APHIS, VS, 2150 Centre Avenue, Building B, Fort Collins, CO 80526","active":true,"usgs":false}],"preferred":false,"id":727661,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Creekmore, Lynn H.","contributorId":202107,"corporation":false,"usgs":false,"family":"Creekmore","given":"Lynn","email":"","middleInitial":"H.","affiliations":[{"id":36346,"text":"USDA, APHIS, VS, 2150 Centre Avenue, Building B, Fort Collins, CO 80526","active":true,"usgs":false}],"preferred":false,"id":727662,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Snekvik, Kevin R.","contributorId":202108,"corporation":false,"usgs":false,"family":"Snekvik","given":"Kevin","email":"","middleInitial":"R.","affiliations":[{"id":36347,"text":"Washington State University, College of Veterinary Medicine, Washington Animal Disease Diagnostic Laboratory, P.O. Box 647034, Pullman, WA  99164-7034","active":true,"usgs":false}],"preferred":false,"id":727663,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ferguson, Jayde A.","contributorId":201123,"corporation":false,"usgs":false,"family":"Ferguson","given":"Jayde","email":"","middleInitial":"A.","affiliations":[{"id":7058,"text":"Alaska Department of Fish and Game","active":true,"usgs":false}],"preferred":false,"id":727664,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Warg, Janet V.","contributorId":168481,"corporation":false,"usgs":false,"family":"Warg","given":"Janet","email":"","middleInitial":"V.","affiliations":[{"id":25305,"text":"Diagnostic Virology Laboratory, National Veterinary Services Laboratories, VS, APHIS, USDA, Ames, Iowa 50010, USA","active":true,"usgs":false}],"preferred":false,"id":727665,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Blair, Marilyn","contributorId":202109,"corporation":false,"usgs":false,"family":"Blair","given":"Marilyn","email":"","affiliations":[{"id":36348,"text":"USFWS Idaho Fish Health Center, 276 Dworshak Complex Drive, Orofino, ID  83544","active":true,"usgs":false}],"preferred":false,"id":727666,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Meyers, Theodore R.","contributorId":173262,"corporation":false,"usgs":false,"family":"Meyers","given":"Theodore","email":"","middleInitial":"R.","affiliations":[{"id":27204,"text":"Alaska Department of Fish and Game, Juneau, Alaska","active":true,"usgs":false}],"preferred":false,"id":727667,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Stewart, Bruce","contributorId":127576,"corporation":false,"usgs":false,"family":"Stewart","given":"Bruce","email":"","affiliations":[{"id":7059,"text":"Northwest Indian Fisheries Commission","active":true,"usgs":false}],"preferred":false,"id":727668,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Warheit, Kenneth I.","contributorId":202110,"corporation":false,"usgs":false,"family":"Warheit","given":"Kenneth","email":"","middleInitial":"I.","affiliations":[{"id":36349,"text":"Washington Department of Fish and Wildlife, Fish Program, 600 Capitol Way N., Olympia, WA 98501","active":true,"usgs":false}],"preferred":false,"id":727669,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Kerwin, John","contributorId":127577,"corporation":false,"usgs":false,"family":"Kerwin","given":"John","email":"","affiliations":[{"id":7060,"text":"Washington State Department of Fish and Wildlife","active":true,"usgs":false}],"preferred":false,"id":727670,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Goodwin, Andrew E.","contributorId":202111,"corporation":false,"usgs":false,"family":"Goodwin","given":"Andrew","email":"","middleInitial":"E.","affiliations":[{"id":36350,"text":"U.S. Fish and Wildlife Service, Pacific Region, 911 NE 11th Avenue, Portland, Oregon  97232","active":true,"usgs":false}],"preferred":false,"id":727671,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Rhodes, Linda D.","contributorId":202112,"corporation":false,"usgs":false,"family":"Rhodes","given":"Linda","email":"","middleInitial":"D.","affiliations":[{"id":36351,"text":"NOAA National Marine Fisheries Service, NOAA, 2725 Montlake Boulevard East, Seattle, WA 98112","active":true,"usgs":false}],"preferred":false,"id":727672,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Whaley, Janet E.","contributorId":202113,"corporation":false,"usgs":false,"family":"Whaley","given":"Janet","email":"","middleInitial":"E.","affiliations":[{"id":36352,"text":"NOAA National Marine Fisheries Service, NOAA, 1315 East-West Highway, Silver Spring, MD 20910","active":true,"usgs":false}],"preferred":false,"id":727673,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Purcell, Maureen K. mpurcell@usgs.gov","contributorId":138685,"corporation":false,"usgs":true,"family":"Purcell","given":"Maureen K.","email":"mpurcell@usgs.gov","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":false,"id":727660,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Bentz, Collette","contributorId":202114,"corporation":false,"usgs":false,"family":"Bentz","given":"Collette","email":"","affiliations":[{"id":36353,"text":"Alaska Department of Fish and Game, Division of Commercial Fisheries, Fish Pathology Laboratory, 333 Raspberry Road, Anchorage, AK 99518","active":true,"usgs":false}],"preferred":false,"id":727674,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Shasa, Desiree","contributorId":202115,"corporation":false,"usgs":false,"family":"Shasa","given":"Desiree","email":"","affiliations":[{"id":36346,"text":"USDA, APHIS, VS, 2150 Centre Avenue, Building B, Fort Collins, CO 80526","active":true,"usgs":false}],"preferred":false,"id":727675,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Bader, Joel","contributorId":127578,"corporation":false,"usgs":false,"family":"Bader","given":"Joel","email":"","affiliations":[{"id":7061,"text":"U.S. FWS, DOI","active":true,"usgs":false}],"preferred":false,"id":727676,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Winton, James R. jwinton@usgs.gov","contributorId":150220,"corporation":false,"usgs":true,"family":"Winton","given":"James R.","email":"jwinton@usgs.gov","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":false,"id":727659,"contributorType":{"id":1,"text":"Authors"},"rank":18}]}}
,{"id":70199153,"text":"70199153 - 2018 - High-energy, high-fat lifestyle challenges an Arctic apex predator, the polar bear","interactions":[],"lastModifiedDate":"2018-09-07T15:58:27","indexId":"70199153","displayToPublicDate":"2018-02-01T15:58:19","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"High-energy, high-fat lifestyle challenges an Arctic apex predator, the polar bear","docAbstract":"<p><span>Regional declines in polar bear (</span><i>Ursus maritimus</i><span>) populations have been attributed to changing sea ice conditions, but with limited information on the causative mechanisms. By simultaneously measuring field metabolic rates, daily activity patterns, body condition, and foraging success of polar bears moving on the spring sea ice, we found that high metabolic rates (1.6 times greater than previously assumed) coupled with low intake of fat-rich marine mammal prey resulted in an energy deficit for more than half of the bears examined. Activity and movement on the sea ice strongly influenced metabolic demands. Consequently, increases in mobility resulting from ongoing and forecasted declines in and fragmentation of sea ice are likely to increase energy demands and may be an important factor explaining observed declines in body condition and survival.</span></p>","language":"English","publisher":"AAAS","doi":"10.1126/science.aan8677","usgsCitation":"Pagano, A.M., Durner, G.M., Rode, K.D., Atwood, T.C., Atkinson, S.N., Peacock, E., Costa, D.P., Owen, M.A., and Williams, T.M., 2018, High-energy, high-fat lifestyle challenges an Arctic apex predator, the polar bear: Science, v. 359, no. 6375, p. 568-572, https://doi.org/10.1126/science.aan8677.","productDescription":"5 p.","startPage":"568","endPage":"572","ipdsId":"IP-086305","costCenters":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":469042,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://repository.library.noaa.gov/view/noaa/60050","text":"External Repository"},{"id":438028,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7XW4H0P","text":"USGS data release","linkHelpText":"Metabolic Rate, Body Composition, Foraging Success, Behavior, and GPS Locations of Female Polar Bears (Ursus maritimus), Beaufort Sea, Spring, 2014-2016 and Resting Energetics of an Adult Female Polar Bear"},{"id":357131,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Beaufort Sea","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -152.86376953125,\n              69.9980521068182\n            ],\n            [\n              -142.60253906249997,\n              69.9980521068182\n            ],\n            [\n              -142.60253906249997,\n              72\n            ],\n            [\n              -152.86376953125,\n              72\n            ],\n            [\n              -152.86376953125,\n              69.9980521068182\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"359","issue":"6375","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98a300e4b0702d0e843018","contributors":{"authors":[{"text":"Pagano, Anthony M. 0000-0003-2176-0909 apagano@usgs.gov","orcid":"https://orcid.org/0000-0003-2176-0909","contributorId":3884,"corporation":false,"usgs":true,"family":"Pagano","given":"Anthony","email":"apagano@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":744387,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Durner, George M. 0000-0002-3370-1191 gdurner@usgs.gov","orcid":"https://orcid.org/0000-0002-3370-1191","contributorId":3576,"corporation":false,"usgs":true,"family":"Durner","given":"George","email":"gdurner@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":744388,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rode, Karyn D. 0000-0002-3328-8202 krode@usgs.gov","orcid":"https://orcid.org/0000-0002-3328-8202","contributorId":5053,"corporation":false,"usgs":true,"family":"Rode","given":"Karyn","email":"krode@usgs.gov","middleInitial":"D.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":744389,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Atwood, Todd C. 0000-0002-1971-3110 tatwood@usgs.gov","orcid":"https://orcid.org/0000-0002-1971-3110","contributorId":4368,"corporation":false,"usgs":true,"family":"Atwood","given":"Todd","email":"tatwood@usgs.gov","middleInitial":"C.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":744390,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Atkinson, Stephen N.","contributorId":12365,"corporation":false,"usgs":false,"family":"Atkinson","given":"Stephen","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":744391,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Peacock, Elizabeth 0000-0002-8482-7843","orcid":"https://orcid.org/0000-0002-8482-7843","contributorId":207644,"corporation":false,"usgs":true,"family":"Peacock","given":"Elizabeth","email":"","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":744392,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Costa, Daniel P.","contributorId":141212,"corporation":false,"usgs":false,"family":"Costa","given":"Daniel","email":"","middleInitial":"P.","affiliations":[{"id":6949,"text":"University of California, Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":744393,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Owen, Megan A.","contributorId":138918,"corporation":false,"usgs":false,"family":"Owen","given":"Megan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":744394,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Williams, Terrie M.","contributorId":191735,"corporation":false,"usgs":false,"family":"Williams","given":"Terrie","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":744395,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70198670,"text":"70198670 - 2018 - Life‐history tradeoffs revealed by seasonal declines in reproductive traits of Arctic‐breeding shorebirds","interactions":[],"lastModifiedDate":"2018-08-15T10:23:02","indexId":"70198670","displayToPublicDate":"2018-02-01T14:30:39","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2190,"text":"Journal of Avian Biology","active":true,"publicationSubtype":{"id":10}},"title":"Life‐history tradeoffs revealed by seasonal declines in reproductive traits of Arctic‐breeding shorebirds","docAbstract":"<p><span>Seasonal declines in breeding performance are widespread in wild animals, resulting from temporal changes in environmental conditions or from individual variation. Seasonal declines might drive selection for early breeding, with implications for other stages of the annual cycle. Alternatively, selection on the phenology of nonbreeding stages could constrain timing of the breeding season and lead to seasonal changes in reproductive performance. We studied 25 taxa of migratory shorebirds (including five subspecies) at 16 arctic sites in Russia, Alaska, and Canada. We investigated seasonal changes in four reproductive traits, and developed a novel Bayesian risk‐partitioning model of daily nest survival to examine seasonal trends in two causes of nest failure. We found strong seasonal declines in reproductive traits for a subset of species. The probability of laying a full four‐egg clutch declined by 8–78% in 12 of 25 taxa tested, daily nest survival rates declined by 1–12% in eight of 22 taxa, incubation duration declined by 2.0–2.5% in two of seven taxa, and mean egg volume declined by 5% in one of 15 taxa. Temporal changes were not fully explained by individual variation. Across all species, the proportion of failed nests that were depredated declined over the season from 0.98 to 0.60, while the proportion abandoned increased from 0.01 to 0.35 and drove the seasonal declines in nest survival. An increase in abandonment of late nests is consistent with a life‐history tradeoff whereby either adult mortality increased or adults deserted the breeding attempt to maximize adult survival. In turn, seasonal declines in clutch size and incubation duration might be adaptive to hasten hatching of later nests. In other species of shorebirds, we found no seasonal patterns in breeding performance, suggesting that some species are not subject to selective pressure for early breeding.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/jav.01531","usgsCitation":"Weiser, E., Brown, S.C., Lanctot, R.B., Gates, H., Abraham, K., Bentzen, R., Bety, J., Brook, R.W., Boldenow, M.L., Donnelly, T.F., English, W.B., Flemming, S.A., Franks, S., Gilchrist, H.G., Giroux, M., Johnson, A.C., Kennedy, L.V., Koloski, L., Kwon, E., Lamarre, J., Lank, D.B., Lecomte, N., Liebezeit, J.R., McKinnon, L., Nol, E., Perz, J., Rausch, J., Robards, M.D., Saalfeld, S., Senner, N.R., Smith, P., Soloviev, M., Solovyeva, D.V., Ward, D.H., Wood, P., and Sandercock, B.K., 2018, Life‐history tradeoffs revealed by seasonal declines in reproductive traits of Arctic‐breeding shorebirds: Journal of Avian Biology, v. 49, no. 2, p. 1-16, https://doi.org/10.1111/jav.01531.","productDescription":"jav-01531; 16 p.","startPage":"1","endPage":"16","ipdsId":"IP-076413","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":356449,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"2","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2018-02-19","publicationStatus":"PW","scienceBaseUri":"5b98a300e4b0702d0e84301a","contributors":{"authors":[{"text":"Weiser, Emily L.","contributorId":171678,"corporation":false,"usgs":false,"family":"Weiser","given":"Emily L.","affiliations":[],"preferred":false,"id":742462,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brown, Stephen C.","contributorId":38457,"corporation":false,"usgs":false,"family":"Brown","given":"Stephen","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":742463,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lanctot, Richard B.","contributorId":31894,"corporation":false,"usgs":true,"family":"Lanctot","given":"Richard","email":"","middleInitial":"B.","affiliations":[{"id":17786,"text":"Carleton University","active":true,"usgs":false},{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false},{"id":135,"text":"Biological Resources Division","active":false,"usgs":true},{"id":7029,"text":"Queen's University, Kingston, Ontario, Canada","active":true,"usgs":false}],"preferred":false,"id":742464,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gates, H. River","contributorId":84256,"corporation":false,"usgs":true,"family":"Gates","given":"H. River","affiliations":[],"preferred":false,"id":742465,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Abraham, Kenneth F.","contributorId":32215,"corporation":false,"usgs":true,"family":"Abraham","given":"Kenneth F.","affiliations":[],"preferred":false,"id":742466,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Bentzen, Rebecca L.","contributorId":62070,"corporation":false,"usgs":true,"family":"Bentzen","given":"Rebecca L.","affiliations":[],"preferred":false,"id":742467,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Bêty, Joël","contributorId":169335,"corporation":false,"usgs":false,"family":"Bêty","given":"Joël","affiliations":[],"preferred":false,"id":742468,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Brook, Rodney W.","contributorId":92083,"corporation":false,"usgs":false,"family":"Brook","given":"Rodney","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":742474,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Boldenow, Megan L.","contributorId":203662,"corporation":false,"usgs":false,"family":"Boldenow","given":"Megan","email":"","middleInitial":"L.","affiliations":[{"id":36677,"text":"Department of Biology and Wildlife, University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":742469,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Donnelly, Tyrone F. tfdonnelly@usgs.gov","contributorId":4369,"corporation":false,"usgs":true,"family":"Donnelly","given":"Tyrone","email":"tfdonnelly@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":742475,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"English, Willow B.","contributorId":169341,"corporation":false,"usgs":false,"family":"English","given":"Willow","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":742476,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Flemming, Scott A.","contributorId":207034,"corporation":false,"usgs":false,"family":"Flemming","given":"Scott","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":742477,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Franks, Samantha E.","contributorId":92979,"corporation":false,"usgs":true,"family":"Franks","given":"Samantha E.","affiliations":[],"preferred":false,"id":742478,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Gilchrist, H. Grant","contributorId":177911,"corporation":false,"usgs":false,"family":"Gilchrist","given":"H.","email":"","middleInitial":"Grant","affiliations":[],"preferred":false,"id":742479,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Giroux, Marie-Andree","contributorId":169343,"corporation":false,"usgs":false,"family":"Giroux","given":"Marie-Andree","email":"","affiliations":[],"preferred":false,"id":742480,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Johnson, Andrew C.","contributorId":169346,"corporation":false,"usgs":false,"family":"Johnson","given":"Andrew","email":"","middleInitial":"C.","affiliations":[{"id":7217,"text":"Bureau of Land Management","active":true,"usgs":false}],"preferred":true,"id":742481,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Kennedy, Lisa V.","contributorId":201905,"corporation":false,"usgs":false,"family":"Kennedy","given":"Lisa","email":"","middleInitial":"V.","affiliations":[{"id":36284,"text":"Western Ontario University, London, Ontario, Canada","active":true,"usgs":false}],"preferred":false,"id":742482,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Koloski, Laura","contributorId":203665,"corporation":false,"usgs":false,"family":"Koloski","given":"Laura","email":"","affiliations":[{"id":36679,"text":"Trent University","active":true,"usgs":false}],"preferred":false,"id":742483,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Kwon, Eunbi","contributorId":169349,"corporation":false,"usgs":false,"family":"Kwon","given":"Eunbi","email":"","affiliations":[],"preferred":false,"id":742484,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Lamarre, Jean-François","contributorId":169350,"corporation":false,"usgs":false,"family":"Lamarre","given":"Jean-François","affiliations":[],"preferred":false,"id":742485,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Lank, David B.","contributorId":42533,"corporation":false,"usgs":false,"family":"Lank","given":"David","email":"","middleInitial":"B.","affiliations":[{"id":29801,"text":"Department of Biological Sciences, Simon Fraser University, Burnaby, BC","active":true,"usgs":false}],"preferred":false,"id":742486,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Lecomte, Nicolas","contributorId":131119,"corporation":false,"usgs":false,"family":"Lecomte","given":"Nicolas","email":"","affiliations":[],"preferred":false,"id":742487,"contributorType":{"id":1,"text":"Authors"},"rank":22},{"text":"Liebezeit, Joseph R.","contributorId":127693,"corporation":false,"usgs":false,"family":"Liebezeit","given":"Joseph","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":742488,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"McKinnon, Laura","contributorId":169353,"corporation":false,"usgs":false,"family":"McKinnon","given":"Laura","email":"","affiliations":[],"preferred":false,"id":742489,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Nol, Erica","contributorId":38459,"corporation":false,"usgs":true,"family":"Nol","given":"Erica","affiliations":[],"preferred":false,"id":742490,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"Perz, Johanna","contributorId":169356,"corporation":false,"usgs":false,"family":"Perz","given":"Johanna","email":"","affiliations":[],"preferred":false,"id":742491,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Rausch, Jennie","contributorId":103938,"corporation":false,"usgs":true,"family":"Rausch","given":"Jennie","affiliations":[],"preferred":false,"id":742492,"contributorType":{"id":1,"text":"Authors"},"rank":27},{"text":"Robards, Martin D.","contributorId":40148,"corporation":false,"usgs":false,"family":"Robards","given":"Martin","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":742493,"contributorType":{"id":1,"text":"Authors"},"rank":28},{"text":"Saalfeld, Sarah T.","contributorId":41721,"corporation":false,"usgs":true,"family":"Saalfeld","given":"Sarah T.","affiliations":[],"preferred":false,"id":742494,"contributorType":{"id":1,"text":"Authors"},"rank":29},{"text":"Senner, Nathan R.","contributorId":140465,"corporation":false,"usgs":false,"family":"Senner","given":"Nathan","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":742495,"contributorType":{"id":1,"text":"Authors"},"rank":30},{"text":"Smith, Paul A.","contributorId":73477,"corporation":false,"usgs":true,"family":"Smith","given":"Paul A.","affiliations":[],"preferred":false,"id":742496,"contributorType":{"id":1,"text":"Authors"},"rank":31},{"text":"Soloviev, Mikhail","contributorId":207035,"corporation":false,"usgs":false,"family":"Soloviev","given":"Mikhail","affiliations":[],"preferred":false,"id":742497,"contributorType":{"id":1,"text":"Authors"},"rank":32},{"text":"Solovyeva, Diana V.","contributorId":106033,"corporation":false,"usgs":true,"family":"Solovyeva","given":"Diana","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":742498,"contributorType":{"id":1,"text":"Authors"},"rank":33},{"text":"Ward, David H. 0000-0002-5242-2526 dward@usgs.gov","orcid":"https://orcid.org/0000-0002-5242-2526","contributorId":3247,"corporation":false,"usgs":true,"family":"Ward","given":"David","email":"dward@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":742499,"contributorType":{"id":1,"text":"Authors"},"rank":34},{"text":"Wood, Paul F.","contributorId":203707,"corporation":false,"usgs":false,"family":"Wood","given":"Paul F.","affiliations":[],"preferred":false,"id":742500,"contributorType":{"id":1,"text":"Authors"},"rank":35},{"text":"Sandercock, Brett K.","contributorId":95816,"corporation":false,"usgs":true,"family":"Sandercock","given":"Brett","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":742501,"contributorType":{"id":1,"text":"Authors"},"rank":36}]}}
]}