{"pageNumber":"1393","pageRowStart":"34800","pageSize":"25","recordCount":165459,"records":[{"id":70048137,"text":"70048137 - 2013 - Ca, Sr, O and D isotope approach to defining the chemical evolution of hydrothermal fluids: example from Long Valley, CA, USA","interactions":[],"lastModifiedDate":"2019-03-25T14:26:33","indexId":"70048137","displayToPublicDate":"2013-12-01T11:26:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Ca, Sr, O and D isotope approach to defining the chemical evolution of hydrothermal fluids: example from Long Valley, CA, USA","docAbstract":"We present chemical and isotopic data for fluids, minerals and rocks from the Long Valley meteoric-hydrothermal system. The samples encompass the presumed hydrothermal upwelling zone in the west moat of the caldera, the Casa Diablo geothermal field, and a series of wells defining a nearly linear, ∼16 km long, west-to-east trend along the likely fluid flow path. Fluid samples were analyzed for the isotopes of water, Sr, and Ca, the concentrations of major cations and anions, alkalinity, and total CO<sub>2</sub>. Water isotope data conform to trends documented in earlier studies, interpreted as indicating a single hydrothermal fluid mixing with local groundwater. Sr isotopes show subtle changes along the flow path, which requires rapid fluid flow and minimal reaction between the channelized fluids and the wallrocks. Sr and O isotopes are used to calculate fracture spacing using a dual porosity model. Calculated fracture spacing and temperature data for hydrothermal fluids indicate the system is (approximately) at steady-state. Correlated variations among total CO<sub>2</sub>, and the concentration and isotopic composition of Ca suggest progressive fluid degassing (loss of CO<sub>2</sub>), which drives calcite precipitation as the fluid flows west-to-east and cools. The shifts in Ca isotopes require that calcite precipitated at temperatures of 150–180 °C is fractionated by ca. −0.3‰ to −0.5‰ relative to aqueous species. Our data are the first evidence that Ca isotopes undergo kinetic fractionation at high temperatures (>100 °C) and can be used to trace calcite precipitation along hydrothermal fluid flow paths.","language":"English","publisher":"Elsevier","doi":"10.1016/j.gca.2013.08.011","usgsCitation":"Brown, S.T., Kennedy, B.M., DePaolo, D., Hurwitz, S., and Evans, W.C., 2013, Ca, Sr, O and D isotope approach to defining the chemical evolution of hydrothermal fluids: example from Long Valley, CA, USA: Geochimica et Cosmochimica Acta, v. 122, p. 209-225, https://doi.org/10.1016/j.gca.2013.08.011.","productDescription":"17 p.","startPage":"209","endPage":"225","numberOfPages":"17","ipdsId":"IP-051352","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":280992,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Long Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -119.34,37.4 ], [ -119.34,37.87 ], [ -118.63,37.87 ], [ -118.63,37.4 ], [ -119.34,37.4 ] ] ] } } ] }","volume":"122","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4ffde4b0b290850f30f3","contributors":{"authors":[{"text":"Brown, Shaun T.","contributorId":68647,"corporation":false,"usgs":true,"family":"Brown","given":"Shaun","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":483815,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kennedy, B. Mack","contributorId":82758,"corporation":false,"usgs":true,"family":"Kennedy","given":"B.","email":"","middleInitial":"Mack","affiliations":[],"preferred":false,"id":483817,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"DePaolo, Donald J.","contributorId":69472,"corporation":false,"usgs":true,"family":"DePaolo","given":"Donald J.","affiliations":[],"preferred":false,"id":483816,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hurwitz, Shaul 0000-0001-5142-6886 shaulh@usgs.gov","orcid":"https://orcid.org/0000-0001-5142-6886","contributorId":2169,"corporation":false,"usgs":true,"family":"Hurwitz","given":"Shaul","email":"shaulh@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":483813,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Evans, William C. 0000-0001-5942-3102 wcevans@usgs.gov","orcid":"https://orcid.org/0000-0001-5942-3102","contributorId":2353,"corporation":false,"usgs":true,"family":"Evans","given":"William","email":"wcevans@usgs.gov","middleInitial":"C.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":483814,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70072614,"text":"70072614 - 2013 - Surprising abundance of Gallionella-related iron oxidizers in creek sediments at pH 4.4 or at high heavy metal concentrations","interactions":[],"lastModifiedDate":"2014-01-22T11:27:48","indexId":"70072614","displayToPublicDate":"2013-12-01T11:23:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1702,"text":"Frontiers in Microbiology","onlineIssn":"1664-302X","active":true,"publicationSubtype":{"id":10}},"title":"Surprising abundance of Gallionella-related iron oxidizers in creek sediments at pH 4.4 or at high heavy metal concentrations","docAbstract":"We identified and quantified abundant iron-oxidizing bacteria (FeOB) at three iron-rich, metal-contaminated creek sites with increasing sediment pH from extremely acidic (R1, pH 2.7), to moderately acidic (R2, pH 4.4), to slightly acidic (R3, pH 6.3) in a former uranium-mining district. The geochemical parameters showed little variations over the 1.5 year study period. The highest metal concentrations found in creek sediments always coincided with the lowest metal concentrations in creek water at the slightly acidic site R3. Sequential extractions of R3 sediment revealed large portions of heavy metals (Ni, Cu, Zn, Pb, U) bound to the iron oxide fraction. Light microscopy of glass slides exposed in creeks detected twisted stalks characteristic of microaerobic FeOB of the family Gallionellaceae at R3 but also at the acidic site R2. Sequences related to FeOB such as Gallionella ferruginea, Sideroxydans sp. CL21, Ferritrophicum radicicola, and Acidovorax sp. BrG1 were identified in the sediments. The highest fraction of clone sequences similar to the acidophilic “Ferrovum myxofaciens” was detected in R1. Quantitative PCR using primer sets specific for Gallionella spp., Sideroxydans spp., and “Ferrovum myxofaciens” revealed that ~72% (R2 sediment) and 37% (R3 sediment) of total bacterial 16S rRNA gene copies could be assigned to groups of FeOB with dominance of microaerobic Gallionella spp. at both sites. Gallionella spp. had similar and very high absolute and relative gene copy numbers in both sediment communities. Thus, Gallionella-like organisms appear to exhibit a greater acid and metal tolerance than shown before. Microaerobic FeOB from R3 creek sediment enriched in newly developed metal gradient tubes tolerated metal concentrations of 35 mM Co, 24 mM Ni, and 1.3 mM Cd, higher than those in sediments. Our results will extend the limited knowledge of FeOB at contaminated, moderately to slightly acidic environments.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Frontiers in Microbiology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Frontiers Research Foundation","doi":"10.3389/fmicb.2013.00390","usgsCitation":"Fabisch, M., Beulig, F., Akob, D.M., and Küsel, K., 2013, Surprising abundance of Gallionella-related iron oxidizers in creek sediments at pH 4.4 or at high heavy metal concentrations: Frontiers in Microbiology, v. 4, 12 p., https://doi.org/10.3389/fmicb.2013.00390.","productDescription":"12 p.","numberOfPages":"12","ipdsId":"IP-052860","costCenters":[{"id":434,"text":"National Research Program","active":false,"usgs":true}],"links":[{"id":473417,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3389/fmicb.2013.00390","text":"Publisher Index Page"},{"id":281365,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281116,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3389/fmicb.2013.00390"}],"country":"Germany","city":"Ronneburg","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 9.012929,50.201997 ], [ 9.012929,50.249873 ], [ 9.077526,50.249873 ], [ 9.077526,50.201997 ], [ 9.012929,50.201997 ] ] ] } } ] }","volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7604e4b0b2908510aa18","contributors":{"authors":[{"text":"Fabisch, Maria","contributorId":17137,"corporation":false,"usgs":true,"family":"Fabisch","given":"Maria","affiliations":[],"preferred":false,"id":488529,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beulig, Felix","contributorId":56971,"corporation":false,"usgs":true,"family":"Beulig","given":"Felix","email":"","affiliations":[],"preferred":false,"id":488530,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Akob, Denise M. 0000-0003-1534-3025 dakob@usgs.gov","orcid":"https://orcid.org/0000-0003-1534-3025","contributorId":4980,"corporation":false,"usgs":true,"family":"Akob","given":"Denise","email":"dakob@usgs.gov","middleInitial":"M.","affiliations":[{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":488528,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Küsel, Kirsten","contributorId":96191,"corporation":false,"usgs":false,"family":"Küsel","given":"Kirsten","affiliations":[{"id":13425,"text":"Aquatic Geomicrobiology, Institute of Ecology, Friedrich Schiller University Jena, Germany","active":true,"usgs":false}],"preferred":false,"id":488531,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70135129,"text":"70135129 - 2013 - Evaluation of blood and muscle tissues for molecular detection and characterization of hematozoa infections in northern pintails (<i>Anas acuta</i>) wintering in California","interactions":[],"lastModifiedDate":"2014-12-11T10:59:46","indexId":"70135129","displayToPublicDate":"2013-12-01T11:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2025,"text":"International Journal for Parasitology: Parasites and Wildlife","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of blood and muscle tissues for molecular detection and characterization of hematozoa infections in northern pintails (<i>Anas acuta</i>) wintering in California","docAbstract":"<p><span>Information on the molecular detection of hematozoa from different tissue types and multiple years would be useful to inform sample collection efforts and interpret results of meta-analyses or investigations spanning multiple seasons. In this study, we tested blood and muscle tissue collected from northern pintails (</span><i>Anas acuta</i><span>) during autumn and winter of different years to evaluate prevalence and genetic diversity of</span><i>Leucocytozoon</i><span>,<span>&nbsp;</span></span><i>Haemoproteus</i><span>, and<span>&nbsp;</span></span><i>Plasmodium</i><span><span>&nbsp;</span>infections in this abundant waterfowl species of the Central Valley of California. We first compared results for paired blood and wing muscle samples to assess the utility of different tissue types for molecular investigations of haemosporidian parasites. Second, we explored inter-annual variability of hematozoa infection in Central Valley northern pintails and investigated possible effects of age, sex, and sub-region of sample collection on estimated parasite detection probability and prevalence. We found limited evidence for differences between tissue types in detection probability and prevalence of</span><i>Leucocytozoon</i><span>,<span>&nbsp;</span></span><i>Haemoproteus</i><span>, and<span>&nbsp;</span></span><i>Plasmodium</i><span><span>&nbsp;</span>parasites, which supports the utility of both sample types for obtaining information on hematozoan infections. However, we detected 11 haemosporidian mtDNA cyt<span>&nbsp;</span></span><i>b</i><span>haplotypes in blood samples vs. six in wing muscle tissue collected during the same sample year suggesting an advantage to using blood samples for investigations of genetic diversity. Estimated prevalence of</span><i>Leucocytozoon</i><span><span>&nbsp;</span>parasites was greater during 2006&ndash;2007 as compared to 2011&ndash;2012 and four unique haemosporidian mtDNA cyt<span>&nbsp;</span></span><i>b</i><span><span>&nbsp;</span>haplotypes were detected in the former sample year but not in the latter. Seven of 15 mtDNA cyt<span>&nbsp;</span></span><i>b</i><span><span>&nbsp;</span>haplotypes detected in northern pintails had 100% identity with previously reported hematozoa lineages detected in waterfowl (</span><i>Haemoproteus</i><span><span>&nbsp;</span>and<span>&nbsp;</span></span><i>Leucocytozoon</i><span>) or other avian taxa (</span><i>Plasmodium</i><span>) providing support for lack of host specificity for some parasite lineages.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ijppaw.2013.02.001","usgsCitation":"Ramey, A.M., Schmutz, J.A., Fleskes, J.P., and Yabsley, M.J., 2013, Evaluation of blood and muscle tissues for molecular detection and characterization of hematozoa infections in northern pintails (<i>Anas acuta</i>) wintering in California: International Journal for Parasitology: Parasites and Wildlife, v. 2, p. 102-109, https://doi.org/10.1016/j.ijppaw.2013.02.001.","productDescription":"8 p.","startPage":"102","endPage":"109","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-043957","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":473419,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.ijppaw.2013.02.001","text":"Publisher Index Page"},{"id":296617,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Central Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.58544921875,\n              36.26199220445664\n            ],\n            [\n              -122.58544921875,\n              40.22921818870117\n            ],\n            [\n              -120.16845703125,\n              40.22921818870117\n            ],\n            [\n              -120.16845703125,\n              36.26199220445664\n            ],\n            [\n              -122.58544921875,\n              36.26199220445664\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"548ace38e4b00f366bee37b0","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":526859,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmutz, Joel A. 0000-0002-6516-0836 jschmutz@usgs.gov","orcid":"https://orcid.org/0000-0002-6516-0836","contributorId":1805,"corporation":false,"usgs":true,"family":"Schmutz","given":"Joel","email":"jschmutz@usgs.gov","middleInitial":"A.","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":526860,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fleskes, Joseph P. 0000-0001-5388-6675 joe_fleskes@usgs.gov","orcid":"https://orcid.org/0000-0001-5388-6675","contributorId":1889,"corporation":false,"usgs":true,"family":"Fleskes","given":"Joseph","email":"joe_fleskes@usgs.gov","middleInitial":"P.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":false,"id":526980,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yabsley, Michael J.","contributorId":76985,"corporation":false,"usgs":false,"family":"Yabsley","given":"Michael","email":"","middleInitial":"J.","affiliations":[{"id":13266,"text":"Warnell School of Forestry and Natural Resources, The University of Georgia","active":true,"usgs":false}],"preferred":false,"id":526981,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70068871,"text":"70068871 - 2013 - Immunological evaluation of captive green sea turtle (Chelonia mydas) with ulcerative dermatitis","interactions":[],"lastModifiedDate":"2017-10-04T14:07:11","indexId":"70068871","displayToPublicDate":"2013-12-01T10:55:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2514,"text":"Journal of Zoo and Wildlife Medicine","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Immunological evaluation of captive green sea turtle (<i>Chelonia mydas</i>) with ulcerative dermatitis","title":"Immunological evaluation of captive green sea turtle (Chelonia mydas) with ulcerative dermatitis","docAbstract":"Ulcerative dermatitis (UD) is common in captive sea turtles and manifests as skin erosions and ulcers associated with gram-negative bacteria. This study compared clinically healthy and UD-affected captive turtles by evaluating hematology, histopathology, immunoglobulin levels, and delayed-type hypersensitivity assay. Turtles with UD had significantly lower weight, reduced delayed-type hypersensitivity (DTH) responses, and higher heterophil:lymphocyte ratios. This study is the first to assay DTH in green turtles (Chelonia mydas) and suggests that UD is associated with immunosuppression.","language":"English","publisher":"American Association of Zoo Veterinarians","doi":"10.1638/2010-0228R4.1","usgsCitation":"Munoz, F.A., Estrada-Parra, S., Romero-Rojas, A., Gonzalez-Ballesteros, E., Work, T.M., Villasenor-Gaona, H., and Estrada-Garcia, I., 2013, Immunological evaluation of captive green sea turtle (Chelonia mydas) with ulcerative dermatitis: Journal of Zoo and Wildlife Medicine, v. 44, no. 4, p. 837-844, https://doi.org/10.1638/2010-0228R4.1.","productDescription":"8 p.","startPage":"837","endPage":"844","numberOfPages":"8","ipdsId":"IP-038323","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":280979,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280978,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1638/2010-0228R4.1"}],"volume":"44","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6208e4b0b290850fde96","contributors":{"authors":[{"text":"Munoz, Fernando Alberto","contributorId":58561,"corporation":false,"usgs":true,"family":"Munoz","given":"Fernando","email":"","middleInitial":"Alberto","affiliations":[],"preferred":false,"id":488154,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Estrada-Parra, Sergio","contributorId":115133,"corporation":false,"usgs":true,"family":"Estrada-Parra","given":"Sergio","email":"","affiliations":[],"preferred":false,"id":535616,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Romero-Rojas, Andres","contributorId":81805,"corporation":false,"usgs":true,"family":"Romero-Rojas","given":"Andres","email":"","affiliations":[],"preferred":false,"id":488156,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gonzalez-Ballesteros, Erik","contributorId":50442,"corporation":false,"usgs":true,"family":"Gonzalez-Ballesteros","given":"Erik","email":"","affiliations":[],"preferred":false,"id":488153,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Work, Thierry M. 0000-0002-4426-9090 thierry_work@usgs.gov","orcid":"https://orcid.org/0000-0002-4426-9090","contributorId":1187,"corporation":false,"usgs":true,"family":"Work","given":"Thierry","email":"thierry_work@usgs.gov","middleInitial":"M.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":488158,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Villasenor-Gaona, Hector","contributorId":34825,"corporation":false,"usgs":true,"family":"Villasenor-Gaona","given":"Hector","email":"","affiliations":[],"preferred":false,"id":488152,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Estrada-Garcia, Iris","contributorId":90213,"corporation":false,"usgs":true,"family":"Estrada-Garcia","given":"Iris","email":"","affiliations":[],"preferred":false,"id":488157,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70048318,"text":"70048318 - 2013 - Sensitivity of fish density estimates to standard analytical procedures applied to Great Lakes hydroacoustic data","interactions":[],"lastModifiedDate":"2014-01-08T10:50:59","indexId":"70048318","displayToPublicDate":"2013-12-01T10:47:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Sensitivity of fish density estimates to standard analytical procedures applied to Great Lakes hydroacoustic data","docAbstract":"Standardized methods of data collection and analysis ensure quality and facilitate comparisons among systems. We evaluated the importance of three recommendations from the Standard Operating Procedure for hydroacoustics in the Laurentian Great Lakes (GLSOP) on density estimates of target species: noise subtraction; setting volume backscattering strength (S<sub>v</sub>) thresholds from user-defined minimum target strength (TS) of interest (TS-based S<sub>v</sub> threshold); and calculations of an index for multiple targets (N<sub>v</sub> index) to identify and remove biased TS values. Eliminating noise had the predictable effect of decreasing density estimates in most lakes. Using the TS-based Sv threshold decreased fish densities in the middle and lower layers in the deepest lakes with abundant invertebrates (e.g., Mysis diluviana). Correcting for biased in situ TS increased measured density up to 86% in the shallower lakes, which had the highest fish densities. The current recommendations by the GLSOP significantly influence acoustic density estimates, but the degree of importance is lake dependent. Applying GLSOP recommendations, whether in the Laurentian Great Lakes or elsewhere, will improve our ability to compare results among lakes. We recommend further development of standards, including minimum TS and analytical cell size, for reducing the effect of biased in situ TS on density estimates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.jglr.2013.09.002","usgsCitation":"Kocovsky, P., Rudstam, L.G., Yule, D., Warner, D.M., Schaner, T., Pientka, B., Deller, J.W., Waterfield, H.A., Witzel, L.D., and Sullivan, P., 2013, Sensitivity of fish density estimates to standard analytical procedures applied to Great Lakes hydroacoustic data: Journal of Great Lakes Research, v. 39, no. 4, p. 655-662, https://doi.org/10.1016/j.jglr.2013.09.002.","productDescription":"8 p.","startPage":"655","endPage":"662","numberOfPages":"8","ipdsId":"IP-051226","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":280707,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280706,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jglr.2013.09.002"}],"country":"United States","otherGeospatial":"Great Lakes","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -92.11,41.38 ], [ -92.11,48.85 ], [ -76.3,48.85 ], [ -76.3,41.38 ], [ -92.11,41.38 ] ] ] } } ] }","volume":"39","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd726de4b0b290851084d9","contributors":{"authors":[{"text":"Kocovsky, Patrick M.","contributorId":89381,"corporation":false,"usgs":true,"family":"Kocovsky","given":"Patrick M.","affiliations":[],"preferred":false,"id":484309,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rudstam, Lars G.","contributorId":56609,"corporation":false,"usgs":false,"family":"Rudstam","given":"Lars","email":"","middleInitial":"G.","affiliations":[{"id":12722,"text":"Cornell University","active":true,"usgs":false}],"preferred":false,"id":484305,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yule, Daniel L.","contributorId":92130,"corporation":false,"usgs":true,"family":"Yule","given":"Daniel L.","affiliations":[],"preferred":false,"id":484310,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Warner, David M. 0000-0003-4939-5368 dmwarner@usgs.gov","orcid":"https://orcid.org/0000-0003-4939-5368","contributorId":2986,"corporation":false,"usgs":true,"family":"Warner","given":"David","email":"dmwarner@usgs.gov","middleInitial":"M.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":484302,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schaner, Ted","contributorId":69939,"corporation":false,"usgs":true,"family":"Schaner","given":"Ted","email":"","affiliations":[],"preferred":false,"id":484308,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Pientka, Bernie","contributorId":57760,"corporation":false,"usgs":true,"family":"Pientka","given":"Bernie","affiliations":[],"preferred":false,"id":484306,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Deller, John W.","contributorId":48862,"corporation":false,"usgs":true,"family":"Deller","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":484303,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Waterfield, Holly A.","contributorId":49698,"corporation":false,"usgs":true,"family":"Waterfield","given":"Holly","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":484304,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Witzel, Larry D.","contributorId":68642,"corporation":false,"usgs":true,"family":"Witzel","given":"Larry","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":484307,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Sullivan, Patrick J.","contributorId":97813,"corporation":false,"usgs":true,"family":"Sullivan","given":"Patrick J.","affiliations":[],"preferred":false,"id":484311,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70045121,"text":"70045121 - 2013 - Seismotectonic framework of the 2010 February 27 <i>M<sub>w</sub></i> 8.8 Maule, Chile earthquake sequence","interactions":[],"lastModifiedDate":"2014-01-13T11:55:16","indexId":"70045121","displayToPublicDate":"2013-12-01T10:41:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"title":"Seismotectonic framework of the 2010 February 27 <i>M<sub>w</sub></i> 8.8 Maule, Chile earthquake sequence","docAbstract":"After the 2010 M<sub>w</sub> 8.8 Maule earthquake, an international collaboration involving teams and instruments from Chile, the US, the UK, France and Germany established the International Maule Aftershock Deployment temporary network over the source region of the event to facilitate detailed, open-access studies of the aftershock sequence. Using data from the first 9-months of this deployment, we have analyzed the detailed spatial distribution of over 2500 well-recorded aftershocks. All earthquakes have been relocated using a hypocentral decomposition algorithm to study the details of and uncertainties in both their relative and absolute locations. We have computed regional moment tensor solutions for the largest of these events to produce a catalogue of 465 mechanisms, and have used all of these data to study the spatial distribution of the aftershock sequence with respect to the Chilean megathrust. We refine models of co-seismic slip distribution of the Maule earthquake, and show how small changes in fault geometries assumed in teleseismic finite fault modelling significantly improve fits to regional GPS data, implying that the accuracy of rapid teleseismic fault models can be substantially improved by consideration of existing fault geometry model databases. We interpret all of these data in an integrated seismotectonic framework for the Maule earthquake rupture and its aftershock sequence, and discuss the relationships between co-seismic rupture and aftershock distributions. While the majority of aftershocks are interplate thrust events located away from regions of maximum co-seismic slip, interesting clusters of aftershocks are identified in the lower plate at both ends of the main shock rupture, implying internal deformation of the slab in response to large slip on the plate boundary interface. We also perform Coulomb stress transfer calculations to compare aftershock locations and mechanisms to static stress changes following the Maule rupture. Without the incorporation of uncertainties in earthquake locations, just 55 per cent of aftershock nodal planes align with faults promoted towards failure by co-seismic slip. When epicentral uncertainties are considered (on the order of just ±2–3 km), 90 per cent of aftershocks are consistent with occurring along faults demonstrating positive stress transfer. These results imply large sensitivities of Coulomb stress transfer calculations to uncertainties in both earthquake locations and models of slip distributions, particularly when applied to aftershocks close to a heterogeneous fault rupture; such uncertainties should therefore be considered in similar studies used to argue for or against models of static stress triggering.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Journal International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Royal Astronomical Society","doi":"10.1093/gji/ggt238","usgsCitation":"Hayes, G., Bergman, E., Johnson, K.J., Benz, H.M., Brown, L., and Meltzer, A.S., 2013, Seismotectonic framework of the 2010 February 27 <i>M<sub>w</sub></i> 8.8 Maule, Chile earthquake sequence: Geophysical Journal International, v. 195, no. 2, p. 1034-1051, https://doi.org/10.1093/gji/ggt238.","productDescription":"18 p.","startPage":"1034","endPage":"1051","numberOfPages":"18","ipdsId":"IP-042222","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":280876,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280875,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1093/gji/ggt238"}],"country":"Chile","city":"Maule","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -78.0,-40.0 ], [ -78.0,-30.0 ], [ -68.0,-30.0 ], [ -68.0,-40.0 ], [ -78.0,-40.0 ] ] ] } } ] }","volume":"195","issue":"2","noUsgsAuthors":false,"publicationDate":"2013-08-23","publicationStatus":"PW","scienceBaseUri":"53cd722ee4b0b29085108220","contributors":{"authors":[{"text":"Hayes, Gavin P. 0000-0003-3323-0112","orcid":"https://orcid.org/0000-0003-3323-0112","contributorId":6157,"corporation":false,"usgs":true,"family":"Hayes","given":"Gavin P.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":476864,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bergman, Eric","contributorId":28160,"corporation":false,"usgs":true,"family":"Bergman","given":"Eric","affiliations":[],"preferred":false,"id":476867,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, Kendra J.","contributorId":13526,"corporation":false,"usgs":true,"family":"Johnson","given":"Kendra","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":476865,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Benz, Harley M. 0000-0002-6860-2134 benz@usgs.gov","orcid":"https://orcid.org/0000-0002-6860-2134","contributorId":794,"corporation":false,"usgs":true,"family":"Benz","given":"Harley","email":"benz@usgs.gov","middleInitial":"M.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":476863,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brown, Lucy","contributorId":26618,"corporation":false,"usgs":true,"family":"Brown","given":"Lucy","email":"","affiliations":[],"preferred":false,"id":476866,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Meltzer, Anne S.","contributorId":56719,"corporation":false,"usgs":true,"family":"Meltzer","given":"Anne","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":476868,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70047494,"text":"70047494 - 2013 - Constructing a reference tephrochronology for Augustine Volcano, Alaska","interactions":[],"lastModifiedDate":"2014-07-02T10:43:44","indexId":"70047494","displayToPublicDate":"2013-12-01T10:38:00","publicationYear":"2013","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"title":"Constructing a reference tephrochronology for Augustine Volcano, Alaska","docAbstract":"<p>Augustine Volcano is the most historically active volcano in Alaska's populous Cook Inlet region. Past on-island work on pre-historic tephra deposits mainly focused on using tephra layers as markers to help distinguish among prevalent debris-avalanche deposits on the island (Waitt and Beget, 2009, USGS Prof Paper 1762), or as source material for petrogenetic studies. No comprehensive reference study of tephra fall from Augustine Volcano previously existed. Numerous workers have identified Holocene-age tephra layers in the region surrounding Augustine Island, but without well-characterized reference deposits, correlation back to the source volcano is difficult. The purpose of this detailed tephra study is to provide a record of eruption frequency and magnitude, as well as to elucidate physical and chemical characteristics for use as reference standards for comparison with regionally distributed Augustine tephra layers. Whole rock major- and trace-element geochemistry, deposit componentry, and field context are used to correlate tephra units on the island where deposits are coarse grained. Major-element glass geochemistry was collected for use in correlating to unknown regional tephra. Due to the small size of the volcanic island (9 by 11 km in diameter) and frequent eruptive activity, on-island exposures of tephra deposits older than a couple thousand years are sparse, and the lettered Tephras B, M, C, H, I, and G of Waitt and Beget (2009) range in age from 370-2200 yrs B.P. There are, however, a few exposures on the south side of the volcano, within about 2 km of the vent, where stratigraphic sections that extend back to the late Pleistocene glaciation include coarse pumice-fall deposits. We have linked the letter-named tephras from the coast to these higher exposures on the south side using physical and chemical characteristics of the deposits. In addition, these exposures preserve at least 5 older major post-glacial eruptions of Augustine. These ultra-proximal sites, along with an off-island section 20 km to the west, provide the first continuous tephrochronology for Augustine that extends from the earliest to latest Holocene. Because examined pumice-fall exposures are limited to a narrow azimuth on the south side of the volcano, the on-island record is likely an incomplete catalog of major eruptions. It is possible however, that the coarse-grained near vent exposures (within 2 km) represent large eruptions that blanketed the entire island in tephra and are representative of the entire Holocene record. The major Holocene tephra units exposed on-island are composed of coarse-grained (cm-scale) pumice ranging in color from white to cream (variably oxidized), and light to medium gray as well as banded varieties. Accidental lithic assembles are highly variable and often unique for individual eruptions. Pumices range from 60-66 wt % SiO2 in whole-rock composition and are distinguishable using trace and minor element abundances and field context. Glass geochemistry is often distinguishable between tephras, but more overlap exists among deposits and presents challenges for correlating to regional tephras.</p>","largerWorkTitle":"American Geophysical Union, Fall Meeting 2013","conferenceTitle":"American Geophysical Union, Fall Meeting 2013","conferenceDate":"2013-12-09T00:00:00","conferenceLocation":"San Francisco, CA","language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","usgsCitation":"Wallace, K.L., and Coombs, M.L., 2013, Constructing a reference tephrochronology for Augustine Volcano, Alaska.","ipdsId":"IP-050546","costCenters":[],"links":[{"id":289367,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Cook Inlet","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -155.2345,58.1972 ], [ -155.2345,59.6709 ], [ -151.1366,59.6709 ], [ -151.1366,58.1972 ], [ -155.2345,58.1972 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53b7b0d7e4b0388651d91696","contributors":{"authors":[{"text":"Wallace, Kristi L. 0000-0002-0962-048X kwallace@usgs.gov","orcid":"https://orcid.org/0000-0002-0962-048X","contributorId":3454,"corporation":false,"usgs":true,"family":"Wallace","given":"Kristi","email":"kwallace@usgs.gov","middleInitial":"L.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":482186,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":482185,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70136099,"text":"70136099 - 2013 - Choosing and using climate change scenarios for ecological-impact assessments and conservation decisions","interactions":[],"lastModifiedDate":"2014-12-23T10:23:58","indexId":"70136099","displayToPublicDate":"2013-12-01T10:30:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1321,"text":"Conservation Biology","active":true,"publicationSubtype":{"id":10}},"title":"Choosing and using climate change scenarios for ecological-impact assessments and conservation decisions","docAbstract":"<p>Increased concern over climate change is demonstrated by the many efforts to assess climate effects and develop adaptation strategies. Scientists, resource managers, and decision makers are increasingly expected to use climate information, but they struggle with its uncertainty. With the current proliferation of climate simulations and downscaling methods, scientifically credible strategies for selecting a subset for analysis and decision making are needed. Drawing on a rich literature in climate science and impact assessment and on experience working with natural resource scientists and decision makers, we devised guidelines for choosing climate-change scenarios for ecological impact assessment that recognize irreducible uncertainty in climate projections and address common misconceptions about this uncertainty. This approach involves identifying primary local climate drivers by climate sensitivity of the biological system of interest; determining appropriate sources of information for future changes in those drivers; considering how well processes controlling local climate are spatially resolved; and selecting scenarios based on considering observed emission trends, relative importance of natural climate variability, and risk tolerance and time horizon of the associated decision. The most appropriate scenarios for a particular analysis will not necessarily be the most appropriate for another due to differences in local climate drivers, biophysical linkages to climate, decision characteristics, and how well a model simulates the climate parameters and processes of interest. Given these complexities, we recommend interaction among climate scientists, natural and physical scientists, and decision makers throughout the process of choosing and using climate-change scenarios for ecological impact assessment.</p>","language":"English","publisher":"Society for Conservation Biology","publisherLocation":"Malden, MA","doi":"10.1111/cobi.12163","collaboration":"University of Washington Climate Impacts Group; National Oceanographic and Atmospheric Administration Earth System Research Laboratory;National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northwest Fisheries Science Center;School of Marine and Atmospheric Sciences, Stony Brook University","usgsCitation":"Amy K. Snover, Mantua, N.J., Littell, J.S., Alexander, M.A., McClure, M.M., and Janet Nye, 2013, Choosing and using climate change scenarios for ecological-impact assessments and conservation decisions: Conservation Biology, v. 27, no. 6, p. 1147-1157, https://doi.org/10.1111/cobi.12163.","productDescription":"11 p.","startPage":"1147","endPage":"1157","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-042727","costCenters":[{"id":107,"text":"Alaska Climate Science Center","active":true,"usgs":true}],"links":[{"id":296859,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":296858,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://onlinelibrary.wiley.com/doi/10.1111/cobi.12163/abstract"}],"volume":"27","issue":"6","noUsgsAuthors":false,"publicationDate":"2013-12-02","publicationStatus":"PW","scienceBaseUri":"54dd2b5ae4b08de9379b3330","contributors":{"authors":[{"text":"Amy K. Snover","contributorId":131065,"corporation":false,"usgs":false,"family":"Amy K. Snover","affiliations":[{"id":7220,"text":"Climate Impacts Group, University of Washington, Box 355672, Sea","active":true,"usgs":false}],"preferred":false,"id":537134,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mantua, Nathan J.","contributorId":131069,"corporation":false,"usgs":false,"family":"Mantua","given":"Nathan","email":"","middleInitial":"J.","affiliations":[{"id":7220,"text":"Climate Impacts Group, University of Washington, Box 355672, Sea","active":true,"usgs":false}],"preferred":false,"id":537138,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Littell, Jeremy S. 0000-0002-5302-8280 jlittell@usgs.gov","orcid":"https://orcid.org/0000-0002-5302-8280","contributorId":4428,"corporation":false,"usgs":true,"family":"Littell","given":"Jeremy","email":"jlittell@usgs.gov","middleInitial":"S.","affiliations":[{"id":107,"text":"Alaska Climate Science Center","active":true,"usgs":true},{"id":411,"text":"National Climate Change and Wildlife Science Center","active":true,"usgs":true}],"preferred":true,"id":537133,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Alexander, Michael A.","contributorId":131067,"corporation":false,"usgs":false,"family":"Alexander","given":"Michael","email":"","middleInitial":"A.","affiliations":[{"id":7222,"text":"NOAA, Earth System Research Laboratory, R/PSD1, 325 Broadway, Bo","active":true,"usgs":false}],"preferred":false,"id":537136,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McClure, Michelle M.","contributorId":131068,"corporation":false,"usgs":false,"family":"McClure","given":"Michelle","email":"","middleInitial":"M.","affiliations":[{"id":7223,"text":"National Oceanic and Atmospheric Administration, National Marine","active":true,"usgs":false}],"preferred":false,"id":537137,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Janet Nye","contributorId":131066,"corporation":false,"usgs":false,"family":"Janet Nye","affiliations":[{"id":7221,"text":"School of Marine and Atmospheric Sciences, Stony Brook Universit","active":true,"usgs":false}],"preferred":false,"id":537135,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70045906,"text":"70045906 - 2013 - Differentiation of subspecies and sexes of Beringian Dunlins using morphometric measures","interactions":[],"lastModifiedDate":"2014-01-14T13:29:49","indexId":"70045906","displayToPublicDate":"2013-12-01T10:27:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Differentiation of subspecies and sexes of Beringian Dunlins using morphometric measures","docAbstract":"Five subspecies of Dunlins (Calidris alpina) that breed in Beringia are potentially sympatric during the non-breeding season. Studying their ecology during this period requires techniques to distinguish individuals by subspecies. Our objectives were to determine (1) if five morphometric measures (body mass, culmen, head, tarsus, and wing chord) differed between sexes and among subspecies (C. a. actites, arcticola, kistchinski, pacifica, and sakhalina), and (2) if these differences were sufficient to allow for correct classification of individuals using equations derived from discriminant function analyses. We conducted analyses using morphometric data from 10 Dunlin populations breeding in northern Russia and Alaska, USA. Univariate tests revealed significant differences between sexes in most morphometric traits of all subspecies, and discriminant function equations predicted the sex of individuals with an accuracy of 83–100% for each subspecies. We provide equations to determine sex and subspecies of individuals in mixed subspecies groups, including the (1) Western Alaska group of arcticola and pacifica (known to stage together in western Alaska) and (2) East Asia group of arcticola, actites, kistchinski, and sakhalina (known to winter together in East Asia). Equations that predict the sex of individuals in mixed groups had classification accuracies between 75% and 87%, yielding reliable classification equations. We also provide equations that predict the subspecies of individuals with an accuracy of 22–96% for different mixed subspecies groups. When the sex of individuals can be predetermined, the accuracy of these equations is increased substantially. Investigators are cautioned to consider limitations due to age and feather wear when using these equations during the non-breeding season. These equations will allow determination of sexual and subspecies segregation in non-breeding areas, allowing implementation of taxonomic-specific conservation actions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Field Ornithology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1111/jofo.12038","usgsCitation":"Gates, H., Yezerinac, S., Powell, A., Tomkovich, P.S., Valchuk, O.P., and Lanctot, R.B., 2013, Differentiation of subspecies and sexes of Beringian Dunlins using morphometric measures: Journal of Field Ornithology, v. 84, no. 4, p. 389-402, https://doi.org/10.1111/jofo.12038.","productDescription":"14 p.","startPage":"389","endPage":"402","numberOfPages":"14","ipdsId":"IP-042609","costCenters":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"links":[{"id":281020,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/jofo.12038"},{"id":281021,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Russia;United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 152.86,50.83 ], [ 152.86,71.39 ], [ -140.89,71.39 ], [ -140.89,50.83 ], [ 152.86,50.83 ] ] ] } } ] }","volume":"84","issue":"4","noUsgsAuthors":false,"publicationDate":"2013-11-25","publicationStatus":"PW","scienceBaseUri":"53cd54e5e4b0b290850f603d","contributors":{"authors":[{"text":"Gates, H. River","contributorId":84256,"corporation":false,"usgs":true,"family":"Gates","given":"H. River","affiliations":[],"preferred":false,"id":478516,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yezerinac, Stephen","contributorId":39697,"corporation":false,"usgs":true,"family":"Yezerinac","given":"Stephen","affiliations":[],"preferred":false,"id":478513,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powell, Abby N. abby_powell@usgs.gov","contributorId":2534,"corporation":false,"usgs":false,"family":"Powell","given":"Abby N.","email":"abby_powell@usgs.gov","affiliations":[{"id":13117,"text":"Institute of Arctic Biology, University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":478511,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tomkovich, Pavel S.","contributorId":55333,"corporation":false,"usgs":false,"family":"Tomkovich","given":"Pavel","email":"","middleInitial":"S.","affiliations":[{"id":6930,"text":"Zoological Museum of Moscow, MV Lomonosov University, Moscow, Russia","active":true,"usgs":false}],"preferred":false,"id":478514,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Valchuk, Olga P.","contributorId":63310,"corporation":false,"usgs":false,"family":"Valchuk","given":"Olga","email":"","middleInitial":"P.","affiliations":[{"id":12544,"text":"Russian Academy of Sciences, Moscow, Russia","active":true,"usgs":false}],"preferred":false,"id":478515,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lanctot, Richard B.","contributorId":31894,"corporation":false,"usgs":true,"family":"Lanctot","given":"Richard","email":"","middleInitial":"B.","affiliations":[{"id":135,"text":"Biological Resources Division","active":false,"usgs":true},{"id":17786,"text":"Carleton University","active":true,"usgs":false},{"id":7029,"text":"Queen's University, Kingston, Ontario, Canada","active":true,"usgs":false},{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":478512,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70072689,"text":"70072689 - 2013 - Greater sage-grouse nest predators in the Virginia Mountains of northwestern Nevada","interactions":[],"lastModifiedDate":"2014-01-20T10:17:19","indexId":"70072689","displayToPublicDate":"2013-12-01T10:11:00","publicationYear":"2013","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":"Greater sage-grouse nest predators in the Virginia Mountains of northwestern Nevada","docAbstract":"Greater sage-grouse Centrocercus urophasianus, hereafter sage-grouse, populations have declined across their range due to the loss, degradation, and fragmentation of habitat. Habitat alterations can lead not only to vegetative changes but also to shifts in animal behavior and predator composition that may influence population vital rates, such as nest success. For example, common ravens Corvus corax are sage-grouse nest predators, and common raven abundance is positively associated with human-caused habitat alterations. Because nest success is a central component to sage-grouse population persistence, research that identifies factors influencing nest success will better inform conservation efforts. We used videography to unequivocally identify sage-grouse nest predators within the Virginia Mountains of northwestern Nevada, USA, from 2009 to 2011 and used maximum likelihood to calculate daily probability of nest survival. In the Virginia Mountains, fires, energy exploration, and other anthropogenic activities have altered historic sage-grouse habitat. We monitored 71 sage-grouse nests during the study, placing video cameras at 39 nests. Cumulative nest survival for all nests was 22.4% (95% CI, 13.0–33.4%), a survival rate that was significantly lower than other published results for sage-grouse in the Great Basin. Depredation was the primary cause for nest failure in our study (82.5%), and common ravens were the most frequent sage-grouse nest predator, accounting for 46.7% of nest depredations. We also successfully documented a suite of mammalian and reptilian species depredating sage-grouse nests, including some predators never previously confirmed in the literature to be sage-grouse nest predators (i.e., bobcats Lynx rufus and long-tailed weasels Mephitis frenata). Within the high elevation, disturbed habitat of the Virginia Mountains, low sage-grouse nest success may be limiting sage-grouse population growth. These results suggest that management actions that restore habitat in the Virginia Mountains and decrease anthropogenic subsidies of ravens will benefit sage-grouse.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Fish and Wildlife Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"U.S. Fish and Wildlife Service","doi":"10.3996/122012-JFWM-110R1","usgsCitation":"Lockyer, Z.B., Coates, P.S., Casazza, M.L., Espinosa, S., and Delehanty, D.J., 2013, Greater sage-grouse nest predators in the Virginia Mountains of northwestern Nevada: Journal of Fish and Wildlife Management, v. 4, no. 2, p. 242-254, https://doi.org/10.3996/122012-JFWM-110R1.","productDescription":"13 p.","startPage":"242","endPage":"254","numberOfPages":"13","ipdsId":"IP-042581","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":473421,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3996/122012-jfwm-110r1","text":"Publisher Index Page"},{"id":281278,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281124,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3996/122012-JFWM-110R1"}],"country":"United States","state":"Nevada","otherGeospatial":"Virginia Mountains","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -119.9465,39.7403 ], [ -119.9465,40.4373 ], [ -119.1619,40.4373 ], [ -119.1619,39.7403 ], [ -119.9465,39.7403 ] ] ] } } ] }","volume":"4","issue":"2","noUsgsAuthors":false,"publicationDate":"2013-10-01","publicationStatus":"PW","scienceBaseUri":"53cd5f2fe4b0b290850fc296","contributors":{"authors":[{"text":"Lockyer, Zachary B.","contributorId":91614,"corporation":false,"usgs":true,"family":"Lockyer","given":"Zachary","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":488561,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coates, Peter S. 0000-0003-2672-9994 pcoates@usgs.gov","orcid":"https://orcid.org/0000-0003-2672-9994","contributorId":3263,"corporation":false,"usgs":true,"family":"Coates","given":"Peter","email":"pcoates@usgs.gov","middleInitial":"S.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":488558,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Casazza, Michael L. 0000-0002-5636-735X mike_casazza@usgs.gov","orcid":"https://orcid.org/0000-0002-5636-735X","contributorId":2091,"corporation":false,"usgs":true,"family":"Casazza","given":"Michael","email":"mike_casazza@usgs.gov","middleInitial":"L.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":488557,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Espinosa, Shawn","contributorId":20253,"corporation":false,"usgs":true,"family":"Espinosa","given":"Shawn","affiliations":[],"preferred":false,"id":488559,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Delehanty, David J.","contributorId":80811,"corporation":false,"usgs":true,"family":"Delehanty","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":488560,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70094972,"text":"70094972 - 2013 - The case for watchful waiting with Isle Royale's wolf population","interactions":[],"lastModifiedDate":"2018-01-04T11:24:12","indexId":"70094972","displayToPublicDate":"2013-12-01T10:11:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3561,"text":"The George Wright Forum","active":true,"publicationSubtype":{"id":10}},"title":"The case for watchful waiting with Isle Royale's wolf population","docAbstract":"In \"Should Isle Royale Wolves be Reintroduced? A Case Study on Wilderness Management in a Changing World,\" Vucetich et al. concluded with the hope that their analysis “motivates broader discussion that deepens understanding of the specifics on Isle Royale and the underlying principles” (2012: 137). This article represents an attempt to continue that discussion.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"The George Wright Forum","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"George Wright Society","usgsCitation":"Mech, L.D., 2013, The case for watchful waiting with Isle Royale's wolf population: The George Wright Forum, v. 30, no. 3, p. 326-332.","productDescription":"7 p.","startPage":"326","endPage":"332","ipdsId":"IP-045977","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":282810,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7772e4b0b2908510b8e5","contributors":{"authors":[{"text":"Mech, L. David 0000-0003-3944-7769 david_mech@usgs.gov","orcid":"https://orcid.org/0000-0003-3944-7769","contributorId":2518,"corporation":false,"usgs":true,"family":"Mech","given":"L.","email":"david_mech@usgs.gov","middleInitial":"David","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":491012,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70093255,"text":"70093255 - 2013 - Bird-vegetation associations in thinned and unthinned young Douglas-fir forests 10 years after thinning","interactions":[],"lastModifiedDate":"2014-02-07T10:09:36","indexId":"70093255","displayToPublicDate":"2013-12-01T10:04:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1687,"text":"Forest Ecology and Management","active":true,"publicationSubtype":{"id":10}},"title":"Bird-vegetation associations in thinned and unthinned young Douglas-fir forests 10 years after thinning","docAbstract":"Quantitative associations between animals and vegetation have long been used as a basis for conservation and management, as well as in formulating predictions about the influence of resource management and climate change on populations. A fundamental assumption embedded in the use of such correlations is that they remain relatively consistent over time. However, this assumption of stationarity has been rarely tested – even for forest birds, which are frequently considered to be 'indicator species' in management operations. We investigated the temporal dynamics of bird-vegetation relationships in young Douglas-fir (Pseudotsuga menziesii) forests over more than a decade following initial anthropogenic disturbance (commercial thinning). We modeled bird occurrence or abundance as a function of vegetation characteristics for eight common bird species for each of six breeding seasons following forest thinning. Generally, vegetation relationships were highly inconsistent in magnitude across years, but remained positive or negative within species. For 3 species, relationships that were initially strong dampened over time. For other species, strength of vegetation association was apparently stochastic. These findings indicate that caution should be used when interpreting weak bird-vegetation relationships found in short-term studies and parameterizing predictive models with data collected over the short term.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Forest Ecology and Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.foreco.2013.06.052","usgsCitation":"Yegorova, S., Betts, M.G., Hagar, J., and Puettmann, K.J., 2013, Bird-vegetation associations in thinned and unthinned young Douglas-fir forests 10 years after thinning: Forest Ecology and Management, v. 310, p. 1057-1070, https://doi.org/10.1016/j.foreco.2013.06.052.","productDescription":"14 p.","startPage":"1057","endPage":"1070","numberOfPages":"14","ipdsId":"IP-046302","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":282061,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.foreco.2013.06.052"},{"id":282105,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon","otherGeospatial":"Oregon Cascade Mountains;Williamette National Forest","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.7449,43.356 ], [ -122.7449,44.9014 ], [ -121.768,44.9014 ], [ -121.768,43.356 ], [ -122.7449,43.356 ] ] ] } } ] }","volume":"310","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4f90e4b0b290850f2c94","contributors":{"authors":[{"text":"Yegorova, Svetlana","contributorId":11505,"corporation":false,"usgs":true,"family":"Yegorova","given":"Svetlana","email":"","affiliations":[],"preferred":false,"id":489993,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Betts, Matthew G.","contributorId":27748,"corporation":false,"usgs":true,"family":"Betts","given":"Matthew","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":489994,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hagar, Joan 0000-0002-3044-6607 joan_hagar@usgs.gov","orcid":"https://orcid.org/0000-0002-3044-6607","contributorId":3369,"corporation":false,"usgs":true,"family":"Hagar","given":"Joan","email":"joan_hagar@usgs.gov","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":489992,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Puettmann, Klaus J.","contributorId":36828,"corporation":false,"usgs":true,"family":"Puettmann","given":"Klaus","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":489995,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70118525,"text":"70118525 - 2013 - AMAP Assessment 2013: Arctic Ocean acidification","interactions":[],"lastModifiedDate":"2014-10-02T10:14:22","indexId":"70118525","displayToPublicDate":"2013-12-01T09:56:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"title":"AMAP Assessment 2013: Arctic Ocean acidification","docAbstract":"<p>This assessment report presents the results of the 2013 AMAP \nAssessment of Arctic Ocean Acidification (AOA). This is the \nfirst such assessment dealing with AOA from an Arctic-wide \nperspective, and complements several assessments that AMAP \nhas delivered over the past ten years concerning the effects of \nclimate change on Arctic ecosystems and people.</p>\n<br>\n<p>The Arctic Monitoring and Assessment Programme (AMAP) is \na group working under the Arctic Council. The Arctic Council \nMinisters have requested AMAP to:\n<p>\n<br>\n<p>- produce integrated assessment reports on the status and \ntrends of the conditions of the Arctic ecosystems;</p>\n<p>- identify possible causes for the changing conditions;</p>\n<p>- detect emerging problems, their possible causes, and the \npotential risk to Arctic ecosystems including indigenous \npeoples and other Arctic residents; and to</p>\n<p>- recommend actions required to reduce risks to \nArctic ecosystems.</p>\n<br>\n<p>This report provides the accessible scientific basis and validation \nfor the statements and recommendations made in the <i>Arctic \nOcean Acidification Assessment Summary for Policy-makers</i>\nthat was delivered to Arctic Council Ministers at their meeting \nin Kiruna, Sweden in May 2011 and the related AMAP State \nof the <i>Arctic Environment report Arctic Ocean Acidification \n2013: An Overview</i>\n. It includes extensive background data and \nreferences to the scientific literature, and details the sources \nfor figures reproduced in the overview report. Whereas the \n<i>Summary for Policy-makers</i> report contains recommendations \nthat focus mainly on policy-relevant actions concerned with \naddressing the consequences of AOA, the conclusions and \nrecommendations presented in this report also cover issues \nof a more scientific nature, such as proposals for filling gaps \nin knowledge, and recommendations relevant to future \nmonitoring and research work.</p>\n<br>\n<p>The AOA assessment was conducted between 2010 and 2013 by \nan international group of over 60 experts. Lead authors were \nselected based on an open nomination process coordinated \nby AMAP. A similar process was used to select international \nexperts who independently reviewed this report. </p>\n<br>\n<p>Information contained in this report is fully references and based on first and foremost peer-reviewed and published results of research and monitoring undertaken since 2006. It also incorporates some new (unpublished) information from monitoring and research conducted according to well-established and documented national and international standards of quality assurance/quality control protocols. Care has been taken to ensure that no critical probability statements are based on non-peer-reviewed materials.</p>\n<br>\n<p>Access to reliable and up-to-date information is essential for \nthe development of science-based decision-making regarding \nongoing changes in the Arctic and their global implications. The \nAOA assessment summary reports and films have therefore \nbeen developed specifically for policy-makers, summarizing the \nmain findings of the AOA assessment. The AOA lead authors \nhave confirmed that both this report and its derivative products \naccurately and fully reflect their scientific assessment. The \nAOA reports and the films are freely available from the AMAP \nSecretariat and on the AMAP website: www.amap.no, and their \nuse for educational purposes is encouraged.</p>\n<br>\n<p>AMAP would like to express its appreciation to all experts who \nhave contributed their time, efforts and data, in particular the \nlead authors who coordinated the production of this report. \nThanks are also due to the reviewers who contributed to the \nAOA peer-review process and provided valuable comments \nthat helped to ensure the quality of the report. A list of the \nmain contributors is included at the start of each chapter. The \nlist is not comprehensive. Specifically, it does not include the \nmany national institutes, laboratories and organizations, and \ntheir staff, which have been involved in various countries in \nAOA-related monitoring and research. Apologies, and no lesser \nthanks are given to any individuals unintentionally omitted \nfrom the list.</p>\n<br>\n<p>The support from the Arctic countries and non-Arctic countries implementing research and monitoring in the Arctic is vital to the success of AMAP. The AMAP work is essentially based on ongoing activities within these countries, and the countries that provide the necessary support for most the experts involved in the preparation of the AMAP assessments. In particular, AMAP would like to acknowledge Norway for taking the lead-country role in this assessment and thank Canada, Norway, Sweden, USA and the Nordic Council of Ministers for their financial support to the AOA work.</p>\n<br>\n<p>The AMAP Working Group is pleased to present its assessment \nto the Arctic Council and the international science community.</p>\n<br>\n<p>Richard Bellerby (AOA assessment Chair)</p>\n<P>Russel Shearer (AMAP Chair)</p>\n<p>Lars-Otto Reiersen (AMAP Executive Secretary)</p>\n<p>Oslo, May 2013</p>","language":"English","publisher":"Arctic Monitoring and Assessment Programme","publisherLocation":"Oslo, Norway","isbn":"978-82-7971-082-0","usgsCitation":"Arctic Monitoring and Assessment Programme, 2013, AMAP Assessment 2013: Arctic Ocean acidification, vii, 99 p.","productDescription":"vii, 99 p.","numberOfPages":"111","ipdsId":"IP-043713","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":294774,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291238,"type":{"id":15,"text":"Index Page"},"url":"https://www.amap.no/documents/doc/AMAP-Assessment-2013-Arctic-Ocean-Acidification/881"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"542e691ee4b092f17df5a703"}
,{"id":70047736,"text":"70047736 - 2013 - Insights for undergraduates seeking an advanced degree in wildlife and fisheries sciences","interactions":[],"lastModifiedDate":"2014-01-08T10:17:08","indexId":"70047736","displayToPublicDate":"2013-12-01T09:52:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1657,"text":"Fisheries","onlineIssn":"1548-8446","printIssn":"0363-2415","active":true,"publicationSubtype":{"id":10}},"title":"Insights for undergraduates seeking an advanced degree in wildlife and fisheries sciences","docAbstract":"In today's job market, having a successful career in the fisheries and wildlife sciences is becoming more dependent on obtaining an advanced degree. As a result, competition for getting accepted into a graduate program is fierce. Our objective for this study was to provide prospective graduate students some insights as to what qualifications or attributes would best prepare them for obtaining a graduate position (M.S.) and to excel once they are enrolled in a graduate program. A survey was sent to 50 universities within the National Association of University Fisheries and Wildlife Programs (NAUFWP) where both faculty and undergraduate students were asked questions relating to graduate school. Faculty rated the importance of various criteria and attributes of graduate school, and students answered the questions according to how they believed faculty members would respond. Overall, undergraduate students shared many of the same graduate school viewpoints as those held by faculty members. However, viewpoints differed on some topics related to admittance and the most important accomplishment of a graduate student while enrolled in a graduate program. These results indicate that undergraduate students may be better prepared for graduate school—and they may understand how to be successful once they are enrolled in a program—than was initially thought.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fisheries","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Taylor & Francis","doi":"10.1080/03632415.2013.826200","usgsCitation":"Kaemingk, M.A., Dembkowski, D., Meyer, H.A., and Gigliotti, L.M., 2013, Insights for undergraduates seeking an advanced degree in wildlife and fisheries sciences: Fisheries, v. 38, no. 11, p. 483-490, https://doi.org/10.1080/03632415.2013.826200.","productDescription":"8 p.","startPage":"483","endPage":"490","numberOfPages":"8","ipdsId":"IP-035456","costCenters":[{"id":561,"text":"South Dakota Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"links":[{"id":280701,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280700,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/03632415.2013.826200"}],"volume":"38","issue":"11","noUsgsAuthors":false,"publicationDate":"2013-11-09","publicationStatus":"PW","scienceBaseUri":"53cd62a5e4b0b290850fe515","contributors":{"authors":[{"text":"Kaemingk, Mark A.","contributorId":40510,"corporation":false,"usgs":true,"family":"Kaemingk","given":"Mark","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":482859,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dembkowski, Daniel J.","contributorId":78237,"corporation":false,"usgs":true,"family":"Dembkowski","given":"Daniel J.","affiliations":[],"preferred":false,"id":482861,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, Hilary A.","contributorId":58937,"corporation":false,"usgs":true,"family":"Meyer","given":"Hilary","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":482860,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gigliotti, Larry M. 0000-0002-1693-5113 lgigliotti@usgs.gov","orcid":"https://orcid.org/0000-0002-1693-5113","contributorId":3906,"corporation":false,"usgs":true,"family":"Gigliotti","given":"Larry","email":"lgigliotti@usgs.gov","middleInitial":"M.","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":482858,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70044058,"text":"70044058 - 2013 - Geomorphic factors related to the persistence of subsurface oil from the Exxon Valdez oil spill","interactions":[],"lastModifiedDate":"2014-01-08T16:10:12","indexId":"70044058","displayToPublicDate":"2013-12-01T09:45:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Geomorphic factors related to the persistence of subsurface oil from the Exxon Valdez oil spill","docAbstract":"Oil from the 1989 Exxon Valdez oil spill has persisted along shorelines of Prince William Sound, Alaska, for more than two decades as both surface and subsurface oil residues. To better understand the distribution of persistent subsurface oil and assess the potential need for further restoration, a thorough and quantitative understanding of the geomorphic factors controlling the presence or absence of subsurface oil is required. Data on oiling and geomorphic features were collected at 198 sites in Prince William Sound to identify and quantify the relationships among these geomorphic factors and the presence and absence of persistent subsurface oil. Geomorphic factors associated with the presence of subsurface oil were initial oil exposure, substrate permeability, topographic slope, low exposure to waves, armoring on gravel beaches, tombolos, natural breakwaters, and rubble accumulations. Geomorphic factors associated with the absence of subsurface oil were impermeable bedrock; platforms with thin sediment veneer; fine-grained, well-sorted gravel beaches with no armor; and low-permeability, raised bay-bottom beaches. Relationships were found between the geomorphic and physical site characteristics and the likelihood of encountering persistent subsurface oiling at those sites. There is quantitative evidence of more complex interactions between the overall wave energy incident at a site and the presence of fine-scale geomorphic features that may have provided smaller, local wave energy sheltering of oil. Similarly, these data provide evidence for interactions between the shoreline slope and the presence of angular rubble, with decreased likelihood for encountering subsurface oil at steeply sloped sites except at high-angle sheltered rubble shoreline locations. These results reinforce the idea that the interactions of beach permeability, stability, and site-specific wave exposure are key drivers for subsurface oil persistence in exposed and intermittently exposed mixed gravel beach and rocky shoreline environments.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Coastal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Coastal Education and Research Foundation","doi":"10.2112/SI_69_9","usgsCitation":"Nixon, Z., Michel, J., Hayes, M.O., Irvine, G.V., and Short, J., 2013, Geomorphic factors related to the persistence of subsurface oil from the Exxon Valdez oil spill: Journal of Coastal Research, p. 115-127, https://doi.org/10.2112/SI_69_9.","productDescription":"14 p.","startPage":"115","endPage":"127","numberOfPages":"14","ipdsId":"IP-042412","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":280778,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280777,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2112/SI_69_9"}],"country":"United States","state":"Alaska","otherGeospatial":"Prince William Sound","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -148.5,59.75 ], [ -148.5,60.75 ], [ -147.0,60.75 ], [ -147.0,59.75 ], [ -148.5,59.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5ea0e4b0b290850fbd0f","contributors":{"authors":[{"text":"Nixon, Zachary","contributorId":108006,"corporation":false,"usgs":true,"family":"Nixon","given":"Zachary","email":"","affiliations":[],"preferred":false,"id":474739,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Michel, Jacqueline","contributorId":17121,"corporation":false,"usgs":true,"family":"Michel","given":"Jacqueline","email":"","affiliations":[],"preferred":false,"id":474736,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hayes, Miles O.","contributorId":40107,"corporation":false,"usgs":true,"family":"Hayes","given":"Miles","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":474737,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Irvine, Gail V. girvine@usgs.gov","contributorId":2368,"corporation":false,"usgs":true,"family":"Irvine","given":"Gail","email":"girvine@usgs.gov","middleInitial":"V.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":474735,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Short, Jeff","contributorId":89437,"corporation":false,"usgs":true,"family":"Short","given":"Jeff","email":"","affiliations":[],"preferred":false,"id":474738,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70132437,"text":"70132437 - 2013 - Roles of patch characteristics, drought frequency, and restoration in long-term trends of a widespread amphibian","interactions":[],"lastModifiedDate":"2020-12-23T14:42:11.34899","indexId":"70132437","displayToPublicDate":"2013-12-01T09:45:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1321,"text":"Conservation Biology","active":true,"publicationSubtype":{"id":10}},"title":"Roles of patch characteristics, drought frequency, and restoration in long-term trends of a widespread amphibian","docAbstract":"<p><span>Despite the high profile of amphibian declines and the increasing threat of drought and fragmentation to aquatic ecosystems, few studies have examined long-term rates of change for a single species across a large geographic area. We analyzed growth in annual egg-mass counts of the Columbia spotted frog (Rana luteiventris) across the northwestern United States, an area encompassing 3 genetic clades. On the basis of data collected by multiple partners from 98 water bodies between 1991 and 2011, we used state-space and linear-regression models to measure effects of patch characteristics, frequency of summer drought, and wetland restoration on population growth. Abundance increased in the 2 clades with greatest decline history, but declined where populations are considered most secure. Population growth was negatively associated with temporary hydroperiods and landscape modification (measured by the human footprint index), but was similar in modified and natural water bodies. The effect of drought was mediated by the size of the water body: populations in large water bodies maintained positive growth despite drought, whereas drought magnified declines in small water bodies. Rapid growth in restored wetlands in areas of historical population declines provided strong evidence of successful management. Our results highlight the importance of maintaining large areas of habitat and underscore the greater vulnerability of small areas of habitat to environmental stochasticity. Similar long-term growth rates in modified and natural water bodies and rapid, positive responses to restoration suggest pond construction and other forms of management can effectively increase population growth. These tools are likely to become increasingly important to mitigate effects of increased drought expected from global climate change.</span></p>","language":"English","publisher":"Society for Conservation Biology","doi":"10.1111/cobi.12119","usgsCitation":"Hossack, B.R., Adams, M.J., Pearl, C.A., Wilson, K.W., Bull, E.L., Lohr, K., Patla, D., Pilliod, D., Jones, J., Wheeler, K., McKay, S., and Corn, P.S., 2013, Roles of patch characteristics, drought frequency, and restoration in long-term trends of a widespread amphibian: Conservation Biology, v. 27, no. 6, p. 1410-1420, https://doi.org/10.1111/cobi.12119.","productDescription":"11 p.","startPage":"1410","endPage":"1420","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-042996","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":381612,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"6","noUsgsAuthors":false,"publicationDate":"2013-08-23","publicationStatus":"PW","scienceBaseUri":"5465d639e4b04d4b7dbd6674","contributors":{"authors":[{"text":"Hossack, Blake R. 0000-0001-7456-9564 blake_hossack@usgs.gov","orcid":"https://orcid.org/0000-0001-7456-9564","contributorId":1177,"corporation":false,"usgs":true,"family":"Hossack","given":"Blake","email":"blake_hossack@usgs.gov","middleInitial":"R.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true},{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":522863,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, M. J. 0000-0001-8844-042X mjadams@usgs.gov","orcid":"https://orcid.org/0000-0001-8844-042X","contributorId":3133,"corporation":false,"usgs":false,"family":"Adams","given":"M.","email":"mjadams@usgs.gov","middleInitial":"J.","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":true,"id":522866,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pearl, Christopher A. 0000-0003-2943-7321 christopher_pearl@usgs.gov","orcid":"https://orcid.org/0000-0003-2943-7321","contributorId":3131,"corporation":false,"usgs":true,"family":"Pearl","given":"Christopher","email":"christopher_pearl@usgs.gov","middleInitial":"A.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":522864,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilson, Kristine W.","contributorId":127013,"corporation":false,"usgs":false,"family":"Wilson","given":"Kristine","email":"","middleInitial":"W.","affiliations":[{"id":6763,"text":"Utah Division of Wildlife Resources, Salt Lake City, Utah","active":true,"usgs":false}],"preferred":false,"id":807240,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bull, Evelyn L.","contributorId":31104,"corporation":false,"usgs":true,"family":"Bull","given":"Evelyn","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":807241,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lohr, Kristin","contributorId":127012,"corporation":false,"usgs":false,"family":"Lohr","given":"Kristin","affiliations":[{"id":6764,"text":"Idaho Department of Fish and Game, Nampa, Idaho","active":true,"usgs":false}],"preferred":false,"id":807242,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Patla, Debra","contributorId":127009,"corporation":false,"usgs":false,"family":"Patla","given":"Debra","affiliations":[{"id":6761,"text":"Northern Rockies Conservation Cooperative, Jackson, Wyoming","active":true,"usgs":false}],"preferred":false,"id":807243,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Pilliod, David S. 0000-0003-4207-3518 dpilliod@usgs.gov","orcid":"https://orcid.org/0000-0003-4207-3518","contributorId":161,"corporation":false,"usgs":true,"family":"Pilliod","given":"David S.","email":"dpilliod@usgs.gov","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":522865,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Jones, Jason","contributorId":127011,"corporation":false,"usgs":false,"family":"Jones","given":"Jason","email":"","affiliations":[{"id":6763,"text":"Utah Division of Wildlife Resources, Salt Lake City, Utah","active":true,"usgs":false}],"preferred":false,"id":807244,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Wheeler, Kevin","contributorId":239996,"corporation":false,"usgs":false,"family":"Wheeler","given":"Kevin","email":"","affiliations":[{"id":36276,"text":"JPL","active":true,"usgs":false}],"preferred":false,"id":807245,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"McKay, Samuel","contributorId":245872,"corporation":false,"usgs":false,"family":"McKay","given":"Samuel","email":"","affiliations":[],"preferred":false,"id":807246,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Corn, P. Stephen 0000-0002-4106-6335 steve_corn@usgs.gov","orcid":"https://orcid.org/0000-0002-4106-6335","contributorId":3227,"corporation":false,"usgs":true,"family":"Corn","given":"P.","email":"steve_corn@usgs.gov","middleInitial":"Stephen","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":522867,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}}
,{"id":70059910,"text":"70059910 - 2013 - Nutrient limitation of native and invasive N<sub>2</sub>-fixing plants in northwest prairies","interactions":[],"lastModifiedDate":"2014-01-06T09:50:24","indexId":"70059910","displayToPublicDate":"2013-12-01T09:43:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2980,"text":"PLoS ONE","active":true,"publicationSubtype":{"id":10}},"title":"Nutrient limitation of native and invasive N<sub>2</sub>-fixing plants in northwest prairies","docAbstract":"Nutrient rich conditions often promote plant invasions, yet additions of non-nitrogen (N) nutrients may provide a novel approach for conserving native symbiotic N-fixing plants in otherwise N-limited ecosystems. Lupinus oreganus is a threatened N-fixing plant endemic to prairies in western Oregon and southwest Washington (USA). We tested the effect of non-N fertilizers on the growth, reproduction, tissue N content, and stable isotope δ<sup>15</sup>N composition of Lupinus at three sites that differed in soil phosphorus (P) and N availability. We also examined changes in other Fabaceae (primarily Vicia sativa and V. hirsuta) and cover of all plant species. Variation in background soil P and N availability shaped patterns of nutrient limitation across sites. Where soil P and N were low, P additions increased Lupinus tissue N and altered foliar δ<sup>15</sup>N, suggesting P limitation of N fixation. Where soil P was low but N was high, P addition stimulated growth and reproduction in Lupinus. At a third site, with higher soil P, only micro- and macronutrient fertilization without N and P increased Lupinus growth and tissue N. Lupinus foliar δ<sup>15</sup>N averaged −0.010‰ across all treatments and varied little with tissue N, suggesting consistent use of fixed N. In contrast, foliar δ<sup>15</sup>N of Vicia spp. shifted towards 0‰ as tissue N increased, suggesting that conditions fostering N fixation may benefit these exotic species. Fertilization increased cover, N fixation, and tissue N of non-target, exotic Fabaceae, but overall plant community structure shifted at only one site, and only after the dominant Lupinus was excluded from analyses. Our finding that non-N fertilization increased the performance of Lupinus with few community effects suggests a potential strategy to aid populations of threatened legume species. The increase in exotic Fabaceae species that occurred with fertilization further suggests that monitoring and adaptive management should accompany any large scale applications.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"PLoS ONE","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Public Library of Science","doi":"10.1371/journal.pone.0084593","usgsCitation":"Thorpe, A.S., Perakis, S.S., Catricala, C., and Kaye, T.N., 2013, Nutrient limitation of native and invasive N<sub>2</sub>-fixing plants in northwest prairies: PLoS ONE, v. 8, no. 12, 9 p., https://doi.org/10.1371/journal.pone.0084593.","productDescription":"9 p.","numberOfPages":"9","onlineOnly":"Y","ipdsId":"IP-050941","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":473422,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1371/journal.pone.0084593","text":"Publisher Index Page"},{"id":280619,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280571,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1371/journal.pone.0084593"}],"country":"United States","state":"Oregon","otherGeospatial":"Williamette Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.3875,43.9533 ], [ -123.3875,45.5987 ], [ -122.3438,45.5987 ], [ -122.3438,43.9533 ], [ -123.3875,43.9533 ] ] ] } } ] }","volume":"8","issue":"12","noUsgsAuthors":false,"publicationDate":"2013-12-27","publicationStatus":"PW","scienceBaseUri":"53cd696ae4b0b29085102ab1","contributors":{"authors":[{"text":"Thorpe, Andrea S.","contributorId":23840,"corporation":false,"usgs":true,"family":"Thorpe","given":"Andrea","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":487839,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Perakis, Steven S. sperakis@usgs.gov","contributorId":3117,"corporation":false,"usgs":true,"family":"Perakis","given":"Steven","email":"sperakis@usgs.gov","middleInitial":"S.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":487837,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Catricala, Christina ccatricala@usgs.gov","contributorId":5187,"corporation":false,"usgs":true,"family":"Catricala","given":"Christina","email":"ccatricala@usgs.gov","affiliations":[],"preferred":true,"id":487838,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kaye, Thomas N.","contributorId":97363,"corporation":false,"usgs":true,"family":"Kaye","given":"Thomas","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":487840,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70047753,"text":"70047753 - 2013 - Data-driven modeling of background and mine-related acidity and metals in river basins","interactions":[],"lastModifiedDate":"2017-05-23T13:32:47","indexId":"70047753","displayToPublicDate":"2013-12-01T09:40:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1555,"text":"Environmental Pollution","active":true,"publicationSubtype":{"id":10}},"title":"Data-driven modeling of background and mine-related acidity and metals in river basins","docAbstract":"<p><span>A novel application of self-organizing map (SOM) and multivariate statistical techniques is used to model the nonlinear interaction among basin mineral-resources, mining activity, and surface-water quality. First, the SOM is trained using sparse measurements from 228 sample sites in the Animas River Basin, Colorado. The model performance is validated by comparing stochastic predictions of basin-alteration assemblages and mining activity at 104 independent sites. The SOM correctly predicts (&gt;98%) the predominant type of basin hydrothermal alteration and presence (or absence) of mining activity. Second, application of the Davies–Bouldin criteria to k-means clustering of SOM neurons identified ten unique environmental groups. Median statistics of these groups define a nonlinear water-quality response along the spatiotemporal hydrothermal alteration-mining gradient. These results reveal that it is possible to differentiate among the continuum between inputs of background and mine-related acidity and metals, and it provides a basis for future research and empirical model development.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.envpol.2013.09.036","usgsCitation":"Friedel, M.J., 2013, Data-driven modeling of background and mine-related acidity and metals in river basins: Environmental Pollution, v. 184, p. 530-539, https://doi.org/10.1016/j.envpol.2013.09.036.","productDescription":"10 p.","startPage":"530","endPage":"539","ipdsId":"IP-038503","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":341590,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"184","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59254a6ee4b0b7ff9fb361b5","contributors":{"authors":[{"text":"Friedel, Michael J","contributorId":119245,"corporation":false,"usgs":true,"family":"Friedel","given":"Michael","email":"","middleInitial":"J","affiliations":[],"preferred":false,"id":518130,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70073896,"text":"70073896 - 2013 - Forest calcium depletion and biotic retention along a soil nitrogen gradient","interactions":[],"lastModifiedDate":"2014-01-24T09:39:03","indexId":"70073896","displayToPublicDate":"2013-12-01T09:33:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Forest calcium depletion and biotic retention along a soil nitrogen gradient","docAbstract":"High nitrogen (N) accumulation in terrestrial ecosystems can shift patterns of nutrient limitation and deficiency beyond N toward other nutrients, most notably phosphorus (P) and base cations (calcium [Ca], magnesium [Mg], and potassium [K]). We examined how naturally high N accumulation from a legacy of symbiotic N fixation shaped P and base cation cycling across a gradient of nine temperate conifer forests in the Oregon Coast Range. We were particularly interested in whether long-term legacies of symbiotic N fixation promoted coupled N and organic P accumulation in soils, and whether biotic demands by non-fixing vegetation could conserve ecosystem base cations as N accumulated. Total soil N (0–100 cm) pools increased nearly threefold across the N gradient, leading to increased nitrate leaching, declines in soil pH from 5.8 to 4.2, 10-fold declines in soil exchangeable Ca, Mg, and K, and increased mobilization of aluminum. These results suggest that long-term N enrichment had acidified soils and depleted much of the readily weatherable base cation pool. Soil organic P increased with both soil N and C across the gradient, but soil inorganic P, biomass P, and P leaching loss did not vary with N, implying that historic symbiotic N fixation promoted soil organic P accumulation and P sufficiency for non-fixers. Even though soil pools of Ca, Mg, and K all declined as soil N increased, only Ca declined in biomass pools, suggesting the emergence of Ca deficiency at high N. Biotic conservation and tight recycling of Ca increased in response to whole-ecosystem Ca depletion, as indicated by preferential accumulation of Ca in biomass and surface soil. Our findings support a hierarchical model of coupled N–Ca cycling under long-term soil N enrichment, whereby ecosystem-level N saturation and nitrate leaching deplete readily available soil Ca, stimulating biotic Ca conservation as overall supply diminishes. We conclude that a legacy of biological N fixation can increase N and P accumulation in soil organic matter to the point that neither nutrient is limiting to subsequent non-fixers, while also resulting in natural N saturation that intensifies base cation depletion and deficiency.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Ecological Society of America","doi":"10.1890/12-2204.1","usgsCitation":"Perakis, S., Sinkhorn, E.R., Catricala, C., Bullen, T.D., Fitzpatrick, J., Hynicka, J.D., and Cromack, K., 2013, Forest calcium depletion and biotic retention along a soil nitrogen gradient: Ecological Applications, v. 23, no. 8, p. 1947-1961, https://doi.org/10.1890/12-2204.1.","productDescription":"15 p.","startPage":"1947","endPage":"1961","numberOfPages":"15","ipdsId":"IP-044899","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":281467,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/12-2204.1"},{"id":281468,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon","otherGeospatial":"Oregon Coast Range","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.286,43.2258 ], [ -124.286,46.2132 ], [ -122.9839,46.2132 ], [ -122.9839,43.2258 ], [ -124.286,43.2258 ] ] ] } } ] }","volume":"23","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5a20e4b0b290850f9271","contributors":{"authors":[{"text":"Perakis, Steven S. 0000-0003-0703-9314","orcid":"https://orcid.org/0000-0003-0703-9314","contributorId":16797,"corporation":false,"usgs":true,"family":"Perakis","given":"Steven S.","affiliations":[],"preferred":false,"id":489162,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sinkhorn, Emily R.","contributorId":7543,"corporation":false,"usgs":true,"family":"Sinkhorn","given":"Emily","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":489161,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Catricala, Christina ccatricala@usgs.gov","contributorId":5187,"corporation":false,"usgs":true,"family":"Catricala","given":"Christina","email":"ccatricala@usgs.gov","affiliations":[],"preferred":true,"id":489160,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bullen, Thomas D. 0000-0003-2281-1691 tdbullen@usgs.gov","orcid":"https://orcid.org/0000-0003-2281-1691","contributorId":1969,"corporation":false,"usgs":true,"family":"Bullen","given":"Thomas","email":"tdbullen@usgs.gov","middleInitial":"D.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":489159,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fitzpatrick, John A. 0000-0001-6738-7180","orcid":"https://orcid.org/0000-0001-6738-7180","contributorId":101983,"corporation":false,"usgs":true,"family":"Fitzpatrick","given":"John A.","affiliations":[],"preferred":false,"id":489165,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hynicka, Justin D.","contributorId":79797,"corporation":false,"usgs":true,"family":"Hynicka","given":"Justin","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":489164,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Cromack, Kermit Jr.","contributorId":79398,"corporation":false,"usgs":true,"family":"Cromack","given":"Kermit","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":489163,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70058183,"text":"70058183 - 2013 - An alternative to soil taxonomy for describing key soil characteristics","interactions":[],"lastModifiedDate":"2013-12-05T09:30:47","indexId":"70058183","displayToPublicDate":"2013-12-01T09:27:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1701,"text":"Frontiers in Ecology and the Environment","active":true,"publicationSubtype":{"id":10}},"title":"An alternative to soil taxonomy for describing key soil characteristics","docAbstract":"We are pleased to see the letter by Schimel and Chadwick (Front Ecol Environ 2013; 11[8]: 405–06), highlighting the importance of soil characterization in ecological and biogeochemical research and explaining the value of soil taxonomy, and we agree with the authors that reporting soil\ntaxonomic classification would greatly increase the interpretive value of many studies. However, in our extensive work with land managers and scientists, we have found that taxonomic classifications are not\nparticularly useful because they are poorly understood. For those unfamiliar\nwith soil taxonomy, deconstructing the meaning of a classification\nis not a simple task. Furthermore, because the US system of soil taxonomy is not applied universally, its utility as a means for effectively describing soil characteristics to readers in other countries is limited. Finally, and most importantly, even at the finest level of soil classification there are often large within-taxa variations in critical properties that can determine ecosystem responses to drivers such as climate and land-use change.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Frontiers in Ecology and the Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"The Ecological Society of America","doi":"10.1890/13.WB.020","usgsCitation":"Duniway, M.C., Miller, M.E., Brown, J., and Toevs, G., 2013, An alternative to soil taxonomy for describing key soil characteristics: Frontiers in Ecology and the Environment, v. 11, no. 10, p. 527-528, https://doi.org/10.1890/13.WB.020.","productDescription":"2 p.","startPage":"527","endPage":"528","numberOfPages":"2","ipdsId":"IP-051156","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":280185,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280175,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/13.WB.020"}],"volume":"11","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"52a1ae73e4b02938ec05c7d8","contributors":{"authors":[{"text":"Duniway, Michael C. 0000-0002-9643-2785 mduniway@usgs.gov","orcid":"https://orcid.org/0000-0002-9643-2785","contributorId":4212,"corporation":false,"usgs":true,"family":"Duniway","given":"Michael","email":"mduniway@usgs.gov","middleInitial":"C.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":487015,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, Mark E.","contributorId":91580,"corporation":false,"usgs":false,"family":"Miller","given":"Mark","email":"","middleInitial":"E.","affiliations":[{"id":6959,"text":"National Park Service Southeast Utah Group","active":true,"usgs":false}],"preferred":false,"id":487018,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brown, Joel R.","contributorId":72641,"corporation":false,"usgs":true,"family":"Brown","given":"Joel R.","affiliations":[],"preferred":false,"id":487017,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Toevs, Gordon","contributorId":57758,"corporation":false,"usgs":true,"family":"Toevs","given":"Gordon","affiliations":[],"preferred":false,"id":487016,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70094637,"text":"70094637 - 2013 - Effect of light, prey density, and prey type on the feeding rates of <i>Hemimysis anomala</i>","interactions":[],"lastModifiedDate":"2014-02-24T09:29:12","indexId":"70094637","displayToPublicDate":"2013-12-01T09:20:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Effect of light, prey density, and prey type on the feeding rates of <i>Hemimysis anomala</i>","docAbstract":"Hemimysis anomala is a near-shore mysid native to the Ponto-Caspian region that was discovered to have invaded Great Lakes ecosystems in 2006. We investigated feeding rates and prey preferences of adult and juvenile Hemimysis in laboratory experiments to gain insight on the potential for Hemimysis to disrupt food webs. For both age groups (AGs), we measured feeding rates as a function of prey abundance (Bosmina longirostris as prey), prey type (B. longirostris, Daphnia pulex, and Mesocyclops sp.), and light levels (no light and dim light). Mean feeding rates on Bosmina increased with prey density and reached 23 ind. (2 h)<sup>−1</sup> for adults and 17 ind. (2 h)<sup>−1</sup> for juveniles. Dim light had little effect on prey selection or feeding rate compared to complete darkness. When feeding rates on alternate prey were compared, both AGs fed at higher rates on Bosmina than Daphnia, but only juveniles fed at significantly higher rates on Bosmina relative to Mesocyclops. No significant differences were observed between feeding rates on Mesocyclops and on Daphnia. Hemimysis feeding rates were on the order of 30–60% of their body weight per day, similar to predatory cladocerans that have been implicated in zooplankton declines in Lakes Huron and Ontario.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrobiologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","doi":"10.1007/s10750-013-1628-0","usgsCitation":"Halpin, K.E., Boscarino, B.T., Rudstam, L.G., Walsh, M.G., and Lantry, B.F., 2013, Effect of light, prey density, and prey type on the feeding rates of <i>Hemimysis anomala</i>: Hydrobiologia, v. 720, no. 1, p. 101-110, https://doi.org/10.1007/s10750-013-1628-0.","productDescription":"10 p.","startPage":"101","endPage":"110","numberOfPages":"10","ipdsId":"IP-046088","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":282662,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":282661,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10750-013-1628-0"}],"country":"United States","state":"New York","city":"Geneva","otherGeospatial":"Seneca Lake","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -76.972683,42.387703 ], [ -76.972683,42.869365 ], [ -76.859287,42.869365 ], [ -76.859287,42.387703 ], [ -76.972683,42.387703 ] ] ] } } ] }","volume":"720","issue":"1","noUsgsAuthors":false,"publicationDate":"2013-08-03","publicationStatus":"PW","scienceBaseUri":"53cd567be4b0b290850f6f15","contributors":{"authors":[{"text":"Halpin, Kathleen E.","contributorId":99442,"corporation":false,"usgs":true,"family":"Halpin","given":"Kathleen","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490684,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boscarino, Brent T.","contributorId":104361,"corporation":false,"usgs":true,"family":"Boscarino","given":"Brent","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":490685,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rudstam, Lars G.","contributorId":56609,"corporation":false,"usgs":false,"family":"Rudstam","given":"Lars","email":"","middleInitial":"G.","affiliations":[{"id":12722,"text":"Cornell University","active":true,"usgs":false}],"preferred":false,"id":490682,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Walsh, Mureen G.","contributorId":67405,"corporation":false,"usgs":true,"family":"Walsh","given":"Mureen","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":490683,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lantry, Brian F. 0000-0001-8797-3910 bflantry@usgs.gov","orcid":"https://orcid.org/0000-0001-8797-3910","contributorId":3435,"corporation":false,"usgs":true,"family":"Lantry","given":"Brian","email":"bflantry@usgs.gov","middleInitial":"F.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":490681,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70107102,"text":"70107102 - 2013 - Combined impacts of current and future dust deposition and regional warming on Colorado River Basin snow dynamics and hydrology","interactions":[],"lastModifiedDate":"2016-04-12T16:44:36","indexId":"70107102","displayToPublicDate":"2013-12-01T09:04:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1928,"text":"Hydrology and Earth System Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Combined impacts of current and future dust deposition and regional warming on Colorado River Basin snow dynamics and hydrology","docAbstract":"<p>The Colorado River provides water to 40 million people in seven western states and two countries and to 5.5 million irrigated acres. The river has long been overallocated. Climate models project runoff losses of 5&ndash;20% from the basin by mid-21st century due to human-induced climate change. Recent work has shown that decreased snow albedo from anthropogenic dust loading to the CO mountains shortens the duration of snow cover by several weeks relative to conditions prior to western expansion of the US in the mid-1800s, and advances peak runoff at Lees Ferry, Arizona, by an average of 3 weeks. Increases in evapotranspiration from earlier exposure of soils and germination of plants have been estimated to decrease annual runoff by more than 1.0 billion cubic meters, or ~5% of the annual average. This prior work was based on observed dust loadings during 2005&ndash;2008; however, 2009 and 2010 saw unprecedented levels of dust loading on snowpacks in the Upper Colorado River Basin (UCRB), being on the order of 5 times the 2005&ndash;2008 loading. Building on our prior work, we developed a new snow albedo decay parameterization based on observations in 2009/10 to mimic the radiative forcing of extreme dust deposition. We convolve low, moderate, and extreme dust/snow albedos with both historic climate forcing and two future climate scenarios via a delta method perturbation of historic records. Compared to moderate dust, extreme dust absorbs 2&times; to 4&times; the solar radiation, and shifts peak snowmelt an additional 3 weeks earlier to a total of 6 weeks earlier than pre-disturbance. The extreme dust scenario reduces annual flow volume an additional 1% (6% compared to pre-disturbance), a smaller difference than from low to moderate dust scenarios due to melt season shifting into a season of lower evaporative demand. The sensitivity of flow timing to dust radiative forcing of snow albedo is maintained under future climate scenarios, but the sensitivity of flow volume reductions decreases with increased climate forcing. These results have implications for water management and suggest that dust abatement efforts could be an important component of any climate adaptation strategies in the UCRB.</p>","language":"English","publisher":"European Geosciences Union","doi":"10.5194/hess-17-4401-2013","usgsCitation":"Deems, J.S., Painter, T.H., Barsugli, J.J., Belnap, J., and Udall, B., 2013, Combined impacts of current and future dust deposition and regional warming on Colorado River Basin snow dynamics and hydrology: Hydrology and Earth System Sciences, v. 17, p. 4401-4413, https://doi.org/10.5194/hess-17-4401-2013.","productDescription":"13 p.","startPage":"4401","endPage":"4413","numberOfPages":"13","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-051183","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":473424,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/hess-17-4401-2013","text":"Publisher Index Page"},{"id":287310,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, Colorado, New Mexico, Utah, Wyoming","otherGeospatial":"Colorado River Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -111.69937133789062,\n              36.730079507078415\n            ],\n            [\n              -111.68083190917969,\n              36.730079507078415\n            ],\n            [\n              -111.64581298828125,\n              36.72677751526221\n            ],\n            [\n              -111.4068603515625,\n              36.67723060234619\n            ],\n            [\n              -111.181640625,\n              36.54936246839778\n            ],\n            [\n              -110.45654296875,\n              36.46105407505434\n            ],\n            [\n              -109.8687744140625,\n              35.991340960635405\n            ],\n            [\n              -109.5062255859375,\n              35.67068501330236\n            ],\n            [\n              -109.21508789062499,\n              35.48751102385376\n            ],\n            [\n              -108.907470703125,\n              35.34425514918409\n            ],\n            [\n              -107.5286865234375,\n              35.290468565908775\n            ],\n            [\n              -107.2760009765625,\n              35.28150065789119\n            ],\n            [\n              -107.215576171875,\n              35.31736632923788\n            ],\n            [\n              -107.13317871093749,\n              35.460669951495305\n            ],\n            [\n              -106.9793701171875,\n              35.62604706595698\n            ],\n            [\n              -106.94091796875,\n              35.817813158696616\n            ],\n            [\n              -106.875,\n              36.26199220445664\n            ],\n            [\n              -106.842041015625,\n              36.67723060234619\n            ],\n            [\n              -106.864013671875,\n              37.02886944696474\n            ],\n            [\n              -107.0068359375,\n              37.21283151445594\n            ],\n            [\n              -107.33642578124999,\n              37.37015718405753\n            ],\n            [\n              -107.545166015625,\n              37.55328764595765\n            ],\n            [\n              -107.666015625,\n              37.74465712069939\n            ],\n            [\n              -107.42431640625,\n              37.84883250647402\n            ],\n            [\n              -107.07275390625,\n              37.90953361677018\n            ],\n            [\n              -106.6552734375,\n              38.004819966413194\n            ],\n            [\n              -106.666259765625,\n              38.33303882235456\n            ],\n            [\n              -106.69921875,\n              38.685509760012\n            ],\n            [\n              -106.875,\n              39.13006024213511\n            ],\n            [\n              -106.435546875,\n              39.40224434029275\n            ],\n            [\n              -105.9521484375,\n              39.740986355883564\n            ],\n            [\n              -105.908203125,\n              40.34654412118006\n            ],\n            [\n              -105.99609375,\n              40.613952441166596\n            ],\n            [\n              -106.435546875,\n              40.74725696280421\n            ],\n            [\n              -106.69921875,\n              41.64007838467894\n            ],\n            [\n              -107.57812499999999,\n              42.65012181368025\n            ],\n            [\n              -108.10546875,\n              42.84375132629023\n            ],\n            [\n              -108.8525390625,\n              43.13306116240612\n            ],\n            [\n              -109.423828125,\n              43.197167282501276\n            ],\n            [\n              -109.77539062499999,\n              43.42100882994726\n            ],\n            [\n              -109.9072265625,\n              43.67581809328341\n            ],\n            [\n              -110.3466796875,\n              43.83452678223682\n            ],\n            [\n              -110.61035156249999,\n              43.67581809328341\n            ],\n            [\n              -110.74218749999999,\n              43.13306116240612\n            ],\n            [\n              -110.8740234375,\n              42.19596877629178\n            ],\n            [\n              -111.0498046875,\n              41.44272637767212\n            ],\n            [\n              -111.0498046875,\n              41.19518982948959\n            ],\n            [\n              -111.181640625,\n              41.04621681452063\n            ],\n            [\n              -111.37939453125,\n              40.94671366508002\n            ],\n            [\n              -111.533203125,\n              40.613952441166596\n            ],\n            [\n              -111.73095703125,\n              40.245991504199026\n            ],\n            [\n              -111.884765625,\n              39.8928799002948\n            ],\n            [\n              -111.97265625,\n              39.33429742980725\n            ],\n            [\n              -112.2802734375,\n              39.11301365149975\n            ],\n            [\n              -112.43408203124999,\n              38.856820134743636\n            ],\n            [\n              -112.60986328125,\n              38.59970036588819\n            ],\n            [\n              -112.60986328125,\n              38.376115424036016\n            ],\n            [\n              -112.67578124999999,\n              38.22091976683121\n            ],\n            [\n              -112.8955078125,\n              37.87485339352928\n            ],\n            [\n              -113.02734374999999,\n              37.579412513438385\n            ],\n            [\n              -113.02734374999999,\n              37.26530995561875\n            ],\n            [\n              -112.9833984375,\n              37.00255267215955\n            ],\n            [\n              -112.67578124999999,\n              36.756490329505155\n            ],\n            [\n              -112.34619140625,\n              36.5978891330702\n            ],\n            [\n              -111.97265625,\n              36.56260003738548\n            ],\n            [\n              -111.69937133789062,\n              36.730079507078415\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"17","noUsgsAuthors":false,"publicationDate":"2013-11-07","publicationStatus":"PW","scienceBaseUri":"537c7962e4b00e1e1a484841","contributors":{"authors":[{"text":"Deems, Jeffrey S.","contributorId":83032,"corporation":false,"usgs":true,"family":"Deems","given":"Jeffrey","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":493874,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Painter, Thomas H.","contributorId":12378,"corporation":false,"usgs":true,"family":"Painter","given":"Thomas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":493873,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barsugli, Joseph J.","contributorId":103587,"corporation":false,"usgs":true,"family":"Barsugli","given":"Joseph","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":493876,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Belnap, Jayne 0000-0001-7471-2279 jayne_belnap@usgs.gov","orcid":"https://orcid.org/0000-0001-7471-2279","contributorId":1332,"corporation":false,"usgs":true,"family":"Belnap","given":"Jayne","email":"jayne_belnap@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":493872,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Udall, Bradley","contributorId":87862,"corporation":false,"usgs":true,"family":"Udall","given":"Bradley","email":"","affiliations":[],"preferred":false,"id":493875,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70137270,"text":"70137270 - 2013 - Genetic diversity and mutation of avian paramyxovirus serotype 1 (Newcastle disease virus) in wild birds and evidence for intercontinental spread","interactions":[],"lastModifiedDate":"2018-08-16T21:30:19","indexId":"70137270","displayToPublicDate":"2013-12-01T09:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":892,"text":"Archives of Virology","active":true,"publicationSubtype":{"id":10}},"title":"Genetic diversity and mutation of avian paramyxovirus serotype 1 (Newcastle disease virus) in wild birds and evidence for intercontinental spread","docAbstract":"<p>Avian paramyxovirus serotype 1 (APMV-1), or Newcastle disease virus, is the causative agent of Newcastle disease, one of the most economically important diseases for poultry production worldwide and a cause of periodic epizootics in wild birds in North America. In this study, we examined the genetic diversity of APMV-1 isolated from migratory birds sampled in Alaska, Japan, and Russia and assessed the evidence for intercontinental virus spread using phylogenetic methods. Additionally, we predicted viral virulence using deduced amino acid residues for the fusion protein cleavage site and estimated mutation rates for the fusion gene of class I and class II migratory bird isolates. All 73 isolates sequenced as part of this study were most closely related to virus genotypes previously reported for wild birds; however, five class II genotype I isolates formed a monophyletic clade exhibiting previously unreported genetic diversity, which met criteria for the designation of a new sub-genotype. Phylogenetic analysis of wild-bird isolates provided evidence for intercontinental virus spread, specifically viral lineages of APMV-1 class II genotype I sub-genotypes Ib and Ic. This result supports migratory bird movement as a possible mechanism for the redistribution of APMV-1. None of the predicted deduced amino acid motifs for the fusion protein cleavage site of APMV-1 strains isolated from migratory birds in Alaska, Japan, and Russia were consistent with those of previously identified virulent viruses. These data therefore provide no support for these strains contributing to the emergence of avian pathogens. The estimated mutation rates for fusion genes of class I and class II wild-bird isolates were faster than those reported previously for non-virulent APMV-1 strains. Collectively, these findings provide new insight into the diversity, spread, and evolution of APMV-1 in wild birds.</p>","language":"English","publisher":"International Union of Microbiological Societies","publisherLocation":"Wien","doi":"10.1007/s00705-013-1761-0","usgsCitation":"Ramey, A.M., Reeves, A.B., Ogawa, H., Ip, S., Imai, K., Bui, V.N., Yamaguchi, E., Silko, N.Y., and Afonso, C., 2013, Genetic diversity and mutation of avian paramyxovirus serotype 1 (Newcastle disease virus) in wild birds and evidence for intercontinental spread: Archives of Virology, v. 158, no. 12, p. 2495-2503, https://doi.org/10.1007/s00705-013-1761-0.","productDescription":"9 p.","startPage":"2495","endPage":"2503","numberOfPages":"9","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-045479","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":297060,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"158","issue":"12","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2013-06-27","publicationStatus":"PW","scienceBaseUri":"54dd2ba6e4b08de9379b3457","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":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":537632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reeves, Andrew B. 0000-0002-7526-0726 areeves@usgs.gov","orcid":"https://orcid.org/0000-0002-7526-0726","contributorId":167362,"corporation":false,"usgs":true,"family":"Reeves","given":"Andrew","email":"areeves@usgs.gov","middleInitial":"B.","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":537633,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ogawa, Haruko","contributorId":138522,"corporation":false,"usgs":false,"family":"Ogawa","given":"Haruko","email":"","affiliations":[],"preferred":false,"id":537830,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ip, S. 0000-0003-4844-7533 hip@usgs.gov","orcid":"https://orcid.org/0000-0003-4844-7533","contributorId":727,"corporation":false,"usgs":true,"family":"Ip","given":"S.","email":"hip@usgs.gov","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":537634,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Imai, Kunitoshi","contributorId":138523,"corporation":false,"usgs":false,"family":"Imai","given":"Kunitoshi","email":"","affiliations":[],"preferred":false,"id":537831,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bui, V. N.","contributorId":138558,"corporation":false,"usgs":false,"family":"Bui","given":"V.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":537832,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Yamaguchi, Emi","contributorId":138525,"corporation":false,"usgs":false,"family":"Yamaguchi","given":"Emi","email":"","affiliations":[],"preferred":false,"id":537833,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Silko, N. Y.","contributorId":138559,"corporation":false,"usgs":false,"family":"Silko","given":"N.","email":"","middleInitial":"Y.","affiliations":[],"preferred":false,"id":537834,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Afonso, C.L.","contributorId":42066,"corporation":false,"usgs":true,"family":"Afonso","given":"C.L.","affiliations":[],"preferred":false,"id":537835,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70058459,"text":"70058459 - 2013 - A review on cylindrospermopsin: the global occurrence, detection, toxicity and degradation of a potent cyanotoxin","interactions":[],"lastModifiedDate":"2013-12-06T09:06:10","indexId":"70058459","displayToPublicDate":"2013-12-01T08:59:21","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1566,"text":"Environmental Science: Processes and Impacts","active":true,"publicationSubtype":{"id":10}},"title":"A review on cylindrospermopsin: the global occurrence, detection, toxicity and degradation of a potent cyanotoxin","docAbstract":"Cylindrospermopsin is an important cyanobacterial toxin found in water bodies worldwide. The ever-increasing and global occurrence of massive and prolonged blooms of cylindrospermopsin-producing cyanobacteria poses a potential threat to both human and ecosystem health. Its toxicity is associated with metabolic activation and may involve mechanisms that adversely affect a wide variety of targets in an organism. Cylindrospermopsin has been shown to be cytotoxic, dermatotoxic, genotoxic, hepatotoxic in vivo, developmentally toxic, and may be carcinogenic. Human exposure may occur through drinking water, during recreational activities and by consuming foods in which the toxin may have bioaccumulated. Drinking water shortages of sufficient quality coupled with growing human pressures and climate variability and change necessitate an integrated and sustainable water management program. This review presents an overview of the importance of cylindrospermopsin, its detection, toxicity, worldwide distribution, and lastly, its chemical and biological degradation and removal by natural processes and drinking water treatment processes.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science: Processes and Impacts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"RSC","doi":"10.1039/C3EM00353A","usgsCitation":"de la Cruz, A.A., Hiskia, A., Kaloudis, T., Chernoff, N., Hill, D., Antoniou, M.G., He, X., Loftin, K., O’Shea, K., Zhao, C., Pelaez, M., Han, C., Lynch, T.J., and Dionysiou, D.D., 2013, A review on cylindrospermopsin: the global occurrence, detection, toxicity and degradation of a potent cyanotoxin: Environmental Science: Processes and Impacts, v. 15, no. 11, p. 1979-2003, https://doi.org/10.1039/C3EM00353A.","productDescription":"25 p.","startPage":"1979","endPage":"2003","ipdsId":"IP-051190","costCenters":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"links":[{"id":280204,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":280196,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1039/C3EM00353A"}],"country":"United States","volume":"15","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"52a63fc5e4b0a6d6958821c3","contributors":{"authors":[{"text":"de la Cruz, Armah A.","contributorId":8374,"corporation":false,"usgs":true,"family":"de la Cruz","given":"Armah","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":487066,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hiskia, Anastasia","contributorId":69054,"corporation":false,"usgs":true,"family":"Hiskia","given":"Anastasia","email":"","affiliations":[],"preferred":false,"id":487074,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kaloudis, Triantafyllos","contributorId":104804,"corporation":false,"usgs":true,"family":"Kaloudis","given":"Triantafyllos","email":"","affiliations":[],"preferred":false,"id":487078,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chernoff, Neil","contributorId":25859,"corporation":false,"usgs":true,"family":"Chernoff","given":"Neil","email":"","affiliations":[],"preferred":false,"id":487070,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hill, Donna","contributorId":82213,"corporation":false,"usgs":true,"family":"Hill","given":"Donna","email":"","affiliations":[],"preferred":false,"id":487075,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Antoniou, Maria G.","contributorId":59341,"corporation":false,"usgs":true,"family":"Antoniou","given":"Maria","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":487072,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"He, Xuexiang","contributorId":66593,"corporation":false,"usgs":true,"family":"He","given":"Xuexiang","email":"","affiliations":[],"preferred":false,"id":487073,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Loftin, Keith","contributorId":107604,"corporation":false,"usgs":true,"family":"Loftin","given":"Keith","affiliations":[],"preferred":false,"id":487079,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"O’Shea, Kevin","contributorId":37245,"corporation":false,"usgs":true,"family":"O’Shea","given":"Kevin","email":"","affiliations":[],"preferred":false,"id":487071,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Zhao, Cen","contributorId":8375,"corporation":false,"usgs":true,"family":"Zhao","given":"Cen","email":"","affiliations":[],"preferred":false,"id":487067,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Pelaez, Miguel","contributorId":98209,"corporation":false,"usgs":true,"family":"Pelaez","given":"Miguel","email":"","affiliations":[],"preferred":false,"id":487077,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Han, Changseok","contributorId":97418,"corporation":false,"usgs":true,"family":"Han","given":"Changseok","email":"","affiliations":[],"preferred":false,"id":487076,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Lynch, Trevor J.","contributorId":13530,"corporation":false,"usgs":true,"family":"Lynch","given":"Trevor","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":487069,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Dionysiou, Dionysios D.","contributorId":12772,"corporation":false,"usgs":true,"family":"Dionysiou","given":"Dionysios","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":487068,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":70104616,"text":"70104616 - 2013 - The significance of ultra-refracted surface gravity waves on sheltered coasts, with application to San Francisco Bay","interactions":[],"lastModifiedDate":"2017-10-30T11:43:47","indexId":"70104616","displayToPublicDate":"2013-12-01T08:19:30","publicationYear":"2013","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":"The significance of ultra-refracted surface gravity waves on sheltered coasts, with application to San Francisco Bay","docAbstract":"Ocean surface gravity waves propagating over shallow bathymetry undergo spatial modification of propagation direction and energy density, commonly due to refraction and shoaling. If the bathymetric variations are significant the waves can undergo changes in their direction of propagation (relative to deepwater) greater than 90° over relatively short spatial scales. We refer to this phenomenon as ultra-refraction. Ultra-refracted swell waves can have a powerful influence on coastal areas that otherwise appear to be sheltered from ocean waves. Through a numerical modeling investigation it is shown that San Francisco Bay, one of the earth's largest and most protected natural harbors, is vulnerable to ultra-refracted ocean waves, particularly southwest incident swell. The flux of wave energy into San Francisco Bay results from wave transformation due to the bathymetry and orientation of the large ebb tidal delta, and deep, narrow channel through the Golden Gate. For example, ultra-refracted swell waves play a critical role in the intermittent closure of the entrance to Crissy Field Marsh, a small restored tidal wetland located on the sheltered north-facing coast approximately 1.5 km east of the Golden Gate Bridge.","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecss.2013.08.022","usgsCitation":"Hanes, D., and Erikson, L.H., 2013, The significance of ultra-refracted surface gravity waves on sheltered coasts, with application to San Francisco Bay: Estuarine, Coastal and Shelf Science, v. 133, p. 129-136, https://doi.org/10.1016/j.ecss.2013.08.022.","productDescription":"8 p.","startPage":"129","endPage":"136","ipdsId":"IP-050810","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true}],"links":[{"id":287249,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay","volume":"133","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5377180ce4b02eab8669efe6","contributors":{"authors":[{"text":"Hanes, D.M.","contributorId":22479,"corporation":false,"usgs":true,"family":"Hanes","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":493757,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Erikson, L. H.","contributorId":21366,"corporation":false,"usgs":true,"family":"Erikson","given":"L.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":493756,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}