This paper integrates dendrochronological, demographic, and experimental perspectives to improve understanding of the response of white spruce (Picea glauca (Moench) Voss) tree growth to climatic variability in interior Alaska. The dendrochronological analyses indicate that climate warming has led to widespread declines in white spruce growth throughout interior Alaska that have become more prevalent during the 20th century. Similarly, demographic studies show that white spruce tree growth is substantially limited by soil moisture availability in both mid- and late-successional stands. Interannual variability in tree growth among stands within a landscape exhibits greater synchrony than does growth of trees that occupy different landscapes, which agrees with dendrochronological findings that the responses depend on landscape position and prevailing climate. In contrast, the results from 18 years of a summer moisture limitation experiment showed that growth in midsuccessional upland stands was unaffected by moisture limitation and that moisture limitation decreased white spruce growth in floodplain stands where it was expected that growth would be less vulnerable because of tree access to river water. Taken together, the evidence from the different perspectives analyzed in this study clearly indicates that white spruce tree growth in interior Alaska is vulnerable to the effects of warming on plant water balance.
","language":"English","publisher":"National Research Council of Canada","doi":"10.1139/X09-206","usgsCitation":"McGuire, A.D., Ruess, R.W., Lloyd, A., Yarie, J., Clein, J.S., and Juday, G., 2010, Vulnerability of white spruce tree growth in interior Alaska in response to climate variability: Dendrochronological, demographic, and experimental perspectives: Canadian Journal of Forest Research, v. 40, p. 1197-1209, https://doi.org/10.1139/X09-206.","productDescription":"13 p.","startPage":"1197","endPage":"1209","numberOfPages":"13","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-017722","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":318366,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -140.625,\n 62.91523303947614\n ],\n [\n -142.3828125,\n 68.26938680456564\n ],\n [\n -163.4765625,\n 67.20403234340081\n ],\n [\n -166.2890625,\n 62.103882522897855\n ],\n [\n -161.015625,\n 59.712097173322924\n ],\n [\n -140.625,\n 62.91523303947614\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"40","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"56cee287e4b015c306ec5f1d","contributors":{"authors":[{"text":"McGuire, A. David 0000-0003-4646-0750 ffadm@usgs.gov","orcid":"https://orcid.org/0000-0003-4646-0750","contributorId":166708,"corporation":false,"usgs":true,"family":"McGuire","given":"A.","email":"ffadm@usgs.gov","middleInitial":"David","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":false,"id":621276,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ruess, Roger W.","contributorId":45483,"corporation":false,"usgs":false,"family":"Ruess","given":"Roger","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":621291,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lloyd, A.","contributorId":167170,"corporation":false,"usgs":false,"family":"Lloyd","given":"A.","email":"","affiliations":[],"preferred":false,"id":621292,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yarie, J.","contributorId":92847,"corporation":false,"usgs":true,"family":"Yarie","given":"J.","affiliations":[],"preferred":false,"id":621293,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Clein, Joy S.","contributorId":83697,"corporation":false,"usgs":true,"family":"Clein","given":"Joy","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":621294,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Juday, G.P.","contributorId":82082,"corporation":false,"usgs":true,"family":"Juday","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":621295,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70101079,"text":"70101079 - 2010 - Behaviour of wintering Tundra Swans Cygnus columbianus columbianus at the Eel River delta and Humboldt Bay, California, USA","interactions":[],"lastModifiedDate":"2018-05-09T19:43:56","indexId":"70101079","displayToPublicDate":"2010-01-01T13:43:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3764,"text":"Wildfowl","onlineIssn":"2052-6458","printIssn":"0954-6324","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Behaviour of wintering Tundra Swans Cygnus columbianus columbianus at the Eel River delta and Humboldt Bay, California, USA","title":"Behaviour of wintering Tundra Swans Cygnus columbianus columbianus at the Eel River delta and Humboldt Bay, California, USA","docAbstract":"Tundra Swan Cygnus columbianus columbinanus phenology and behaviour at the Eel River delta and southern Humboldt Bay in northern California, USA, is described. Counts made each January from 1963 onwards peaked at 1,502 swans in 1988. Monthly counts recorded during the 2006/07 and 2008/09 winters peaked in February, at 1,033 and 772 swans respectively. Swans roosted on ephemeral ponds at the Humboldt Bay National Wildlife Refuge, on ephemeral ponds within grassland pastures in the vicinity of the Refuge, and perhaps also used the Eel River as a roost. Flights between Refuge roosts and the pastures and ponds occurred in the two hours after sunrise and before dark. In winters 2008/09 and 2009/10, the percentage of cygnets in the flocks was 10.6% and 21.4% respectively, and increased to =31% cygnets each year after most swans had departed from the area in March. Average brood size in 2009/10 was 2.1 cygnets. Daily activities consisted of foraging (44.9% of activities recorded), comfort behaviour (22.1%), locomotion (16.2%) and vigilance (15.5%). Eight neck-collared swans identified in the wintering flock were marked at four locations in different parts of Alaska, up to 1,300 km apart.
","language":"English","publisher":"Wildfowl & Wetlands Trust","usgsCitation":"Black, J.M., Gress, C., Byers, J.W., Jennings, E., and Ely, C.R., 2010, Behaviour of wintering Tundra Swans Cygnus columbianus columbianus at the Eel River delta and Humboldt Bay, California, USA: Wildfowl, v. 60, p. 38-51.","productDescription":"14 p.","startPage":"38","endPage":"51","ipdsId":"IP-026804","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":286028,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":286004,"type":{"id":15,"text":"Index Page"},"url":"https://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/1222"}],"country":"United States","state":"California","county":"Humboldt County","otherGeospatial":"Eel River Delta;Humboldt Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.3492,40.5732 ], [ -124.3492,40.8309 ], [ -123.9608,40.8309 ], [ -123.9608,40.5732 ], [ -124.3492,40.5732 ] ] ] } } ] }","volume":"60","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53558fcce4b0120853e8be58","contributors":{"authors":[{"text":"Black, Jeffrey M.","contributorId":77822,"corporation":false,"usgs":true,"family":"Black","given":"Jeffrey","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":492588,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gress, Carol","contributorId":46872,"corporation":false,"usgs":true,"family":"Gress","given":"Carol","email":"","affiliations":[],"preferred":false,"id":492586,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Byers, Jacob W.","contributorId":45624,"corporation":false,"usgs":true,"family":"Byers","given":"Jacob","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":492585,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jennings, Emily","contributorId":52884,"corporation":false,"usgs":true,"family":"Jennings","given":"Emily","email":"","affiliations":[],"preferred":false,"id":492587,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ely, Craig R. 0000-0003-4262-0892 cely@usgs.gov","orcid":"https://orcid.org/0000-0003-4262-0892","contributorId":3214,"corporation":false,"usgs":true,"family":"Ely","given":"Craig","email":"cely@usgs.gov","middleInitial":"R.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":492584,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70236423,"text":"70236423 - 2010 - Historic and paleo-submarine landslide deposits imaged beneath Port Valdez, Alaska: Implications for tsunami generation in a glacial fiord","interactions":[],"lastModifiedDate":"2022-10-13T14:42:42.758189","indexId":"70236423","displayToPublicDate":"2010-01-01T12:21:13","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":5696,"text":"Advances in natural and technological hazards research","active":true,"publicationSubtype":{"id":24}},"title":"Historic and paleo-submarine landslide deposits imaged beneath Port Valdez, Alaska: Implications for tsunami generation in a glacial fiord","docAbstract":"During the 1964 M9.2 great Alaskan earthquake, submarine-slope failures resulted in the generation of highly destructive tsunamis at Port Valdez, Alaska. A high-resolution, mini-sparker reflection profiler was used to image debris lobes, which we attribute to slope failures that occurred both during and prior to the 1964 megathrust event. In these reflection profiles, debris lobe deposits are indicated by acoustically opaque units that are separated by undisturbed parallel-layered reflectors. Near-surface debris lobes attributed to the 1964 earthquake include: (1) a debris lobe over 30 m thick that emanates from the fiord-head delta in eastern Port Valdez; and (2) debris flow lobes incorporating large, intact blocks up to 40 m high in western Port Valdez, off the Shoup Glacier moraine. In addition to the near-surface debris lobes, we imaged at least five additional debris lobe deposits buried beneath the 1964 deposit. The debris lobe directly beneath the 1964 deposit has a similar thickness and spatial distribution as the 1964 deposit. However, the older, deeper, debris lobes are thinner, less extensive, and separated by thinner sequences of parallel-layered reflectors. Glacier retreat and concomitant build-up of the fiord-head delta combined with longer time intervals between megathrust events may have resulted in more extensive delta failures and thus thicker debris lobes through time.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Submarine mass movements and their consequences","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Springer","doi":"10.1007/978-90-481-3071-9_34","usgsCitation":"Ryan, H.F., Lee, H.J., Haeussler, P.J., Alexander, C.R., and Kayen, R., 2010, Historic and paleo-submarine landslide deposits imaged beneath Port Valdez, Alaska: Implications for tsunami generation in a glacial fiord, chap. of Submarine mass movements and their consequences: Advances in natural and technological hazards research, v. 28, p. 411-421, https://doi.org/10.1007/978-90-481-3071-9_34.","productDescription":"11 p.","startPage":"411","endPage":"421","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":645,"text":"Western Coastal and Marine Geology","active":false,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":406246,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","city":"Port Valdez","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -146.700439453125,\n 61.03701223240187\n ],\n [\n -146.08108520507812,\n 61.03701223240187\n ],\n [\n -146.08108520507812,\n 61.18231505813263\n ],\n [\n -146.700439453125,\n 61.18231505813263\n ],\n [\n -146.700439453125,\n 61.03701223240187\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"28","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Mosher, David C.","contributorId":66118,"corporation":false,"usgs":false,"family":"Mosher","given":"David","email":"","middleInitial":"C.","affiliations":[{"id":18105,"text":"University of New Hampshire, Durham","active":true,"usgs":false}],"preferred":false,"id":854436,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Shipp, R. C.","contributorId":35470,"corporation":false,"usgs":true,"family":"Shipp","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":854437,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Moscardelli, Lorena","contributorId":147083,"corporation":false,"usgs":false,"family":"Moscardelli","given":"Lorena","email":"","affiliations":[],"preferred":false,"id":854438,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Chaytor, Jason 0000-0001-8135-8677 jchaytor@usgs.gov","orcid":"https://orcid.org/0000-0001-8135-8677","contributorId":140095,"corporation":false,"usgs":true,"family":"Chaytor","given":"Jason","email":"jchaytor@usgs.gov","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":854439,"contributorType":{"id":2,"text":"Editors"},"rank":4},{"text":"Baxter, Christopher D. P.","contributorId":147084,"corporation":false,"usgs":false,"family":"Baxter","given":"Christopher","email":"","middleInitial":"D. P.","affiliations":[],"preferred":false,"id":854440,"contributorType":{"id":2,"text":"Editors"},"rank":5},{"text":"Lee, Homa J. hjlee@usgs.gov","contributorId":1021,"corporation":false,"usgs":true,"family":"Lee","given":"Homa J.","email":"hjlee@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":854441,"contributorType":{"id":2,"text":"Editors"},"rank":6},{"text":"Urgeles, Roger","contributorId":147085,"corporation":false,"usgs":false,"family":"Urgeles","given":"Roger","email":"","affiliations":[],"preferred":false,"id":854442,"contributorType":{"id":2,"text":"Editors"},"rank":7}],"authors":[{"text":"Ryan, H. F.","contributorId":18002,"corporation":false,"usgs":true,"family":"Ryan","given":"H.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":850950,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, H. J.","contributorId":190472,"corporation":false,"usgs":true,"family":"Lee","given":"H.","email":"","middleInitial":"J.","affiliations":[{"id":645,"text":"Western Coastal and Marine Geology","active":false,"usgs":true}],"preferred":false,"id":850951,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":850953,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Alexander, C. R.","contributorId":72729,"corporation":false,"usgs":true,"family":"Alexander","given":"C.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":850954,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kayen, Robert E. 0000-0002-0356-072X","orcid":"https://orcid.org/0000-0002-0356-072X","contributorId":261195,"corporation":false,"usgs":true,"family":"Kayen","given":"Robert E.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":850952,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70120460,"text":"70120460 - 2010 - Beak deformities in Northwestern Crows: Evidence of a multispecies epizootic","interactions":[],"lastModifiedDate":"2018-08-21T15:08:13","indexId":"70120460","displayToPublicDate":"2010-01-01T10:36:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Beak deformities in Northwestern Crows: Evidence of a multispecies epizootic","docAbstract":"Beak abnormalities are rare among adult birds and, typically, are not widespread in a given population, within a region, or across multiple species. A high concentration of beak deformities was recently documented in Black-capped Chickadees (Poecile atricapillus) and other resident avian species in Alaska. We describe a parallel condition in Northwestern Crows (Corvus caurinus) that signals the emergence of a multispecies epizootic. On the basis of 186 Northwestern Crows captured at six sites in Alaska during 2007 and 2008, we estimated the prevalence of beak deformities in adults to be 16.9 ± 5.3%, the highest rate of gross deformities ever recorded in a wild bird population. Prevalence varied among sites and was as high as 36% on the Kenai Peninsula, which suggests possible epizootic clusters. We also documented beak abnormalities in an additional 148 Northwestern Crows in south-central and southeastern Alaska and in 64 crows near Vancouver, British Columbia, and Puget Sound, Washington, a region where both Northwestern Crows and American Crows (C. brachyrhynchos) occur. The increase in frequency and distribution of crows observed with abnormal beaks throughout the Pacific Northwest since the late 1990s indicates a geographic expansion of this problem. Affected crows exhibited elongated and often crossed beaks that were morphologically similar to deformities documented in Black-capped Chickadees and other species in Alaska over approximately the same period. Additional research is needed to determine the etiology and potential adverse effects on bird populations affected by this disorder.
","language":"English","publisher":"American Ornithological Society","doi":"10.1525/auk.2010.10132","usgsCitation":"Van Hemert, C.R., and Handel, C.M., 2010, Beak deformities in Northwestern Crows: Evidence of a multispecies epizootic: The Auk, v. 127, no. 4, p. 746-751, https://doi.org/10.1525/auk.2010.10132.","productDescription":"6 p.","startPage":"746","endPage":"751","ipdsId":"IP-019472","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":475768,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1525/auk.2010.10132","text":"Publisher Index Page"},{"id":292268,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Alaska, British Columbia, Washington","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -156.27,45.68 ], [ -156.27,63.04 ], [ -120.41,63.04 ], [ -120.41,45.68 ], [ -156.27,45.68 ] ] ] } } ] }","volume":"127","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ef1ec3e4b0bfa1f993eee9","contributors":{"authors":[{"text":"Van Hemert, Caroline R. 0000-0002-6858-7165 cvanhemert@usgs.gov","orcid":"https://orcid.org/0000-0002-6858-7165","contributorId":3592,"corporation":false,"usgs":true,"family":"Van Hemert","given":"Caroline","email":"cvanhemert@usgs.gov","middleInitial":"R.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":498263,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Handel, Colleen M. 0000-0002-0267-7408 cmhandel@usgs.gov","orcid":"https://orcid.org/0000-0002-0267-7408","contributorId":3067,"corporation":false,"usgs":true,"family":"Handel","given":"Colleen","email":"cmhandel@usgs.gov","middleInitial":"M.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":498262,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70073504,"text":"70073504 - 2010 - Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska","interactions":[],"lastModifiedDate":"2018-07-07T18:02:07","indexId":"70073504","displayToPublicDate":"2010-01-01T10:33:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska","docAbstract":"The terminus of Columbia Glacier, Alaska, unexpectedly became ungrounded in 2007 during its prolonged retreat. Visual observations showed that calving changed from a steady release of low-volume bergs, to episodic flow-perpendicular rifting, propagation, and release of very large icebergs - a style reminiscent of calving from ice shelves. Here, we compare passive seismic and photographic observations through this transition to examine changes in calving. Mechanical changes accompany the visible changes in calving style post flotation: generation of seismic energy during calving is substantially reduced. We propose this is partly due to changes in source processes.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1029/2010GL043201","usgsCitation":"Walter, F., O’Neel, S., McNamara, D., Pfeffer, W., Bassis, J.N., and Fricker, H.A., 2010, Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska: Geophysical Research Letters, v. 37, no. 15, 5 p., https://doi.org/10.1029/2010GL043201.","productDescription":"5 p.","numberOfPages":"5","onlineOnly":"Y","ipdsId":"IP-019315","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":475769,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2010gl043201","text":"Publisher Index Page"},{"id":281283,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281282,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2010GL043201"}],"country":"United States","state":"Alaska","otherGeospatial":"Columbia Glacier","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -150.0077,59.7651 ], [ -150.0077,61.519 ], [ -143.6931,61.519 ], [ -143.6931,59.7651 ], [ -150.0077,59.7651 ] ] ] } } ] }","volume":"37","issue":"15","noUsgsAuthors":false,"publicationDate":"2010-08-07","publicationStatus":"PW","scienceBaseUri":"53cd61e7e4b0b290850fdd3e","contributors":{"authors":[{"text":"Walter, Fabian","contributorId":21431,"corporation":false,"usgs":true,"family":"Walter","given":"Fabian","email":"","affiliations":[],"preferred":false,"id":488842,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Neel, Shad 0000-0002-9185-0144 soneel@usgs.gov","orcid":"https://orcid.org/0000-0002-9185-0144","contributorId":166740,"corporation":false,"usgs":true,"family":"O’Neel","given":"Shad","email":"soneel@usgs.gov","affiliations":[{"id":107,"text":"Alaska Climate Science Center","active":true,"usgs":true},{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true},{"id":120,"text":"Alaska Science Center Water","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":488844,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McNamara, Daniel","contributorId":103566,"corporation":false,"usgs":true,"family":"McNamara","given":"Daniel","affiliations":[],"preferred":false,"id":488846,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pfeffer, W.T.","contributorId":14632,"corporation":false,"usgs":true,"family":"Pfeffer","given":"W.T.","email":"","affiliations":[],"preferred":false,"id":488841,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bassis, Jeremy N.","contributorId":49271,"corporation":false,"usgs":true,"family":"Bassis","given":"Jeremy","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":488843,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fricker, Helen Amanda","contributorId":79799,"corporation":false,"usgs":true,"family":"Fricker","given":"Helen","email":"","middleInitial":"Amanda","affiliations":[],"preferred":false,"id":488845,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70134695,"text":"70134695 - 2010 - Population structure and plumage polymorphism: the intraspecific evolutionary relationships of a polymorphic raptor, Buteo jamaicensis harlani","interactions":[],"lastModifiedDate":"2018-08-20T18:03:34","indexId":"70134695","displayToPublicDate":"2010-01-01T10:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":955,"text":"BMC Evolutionary Biology","active":true,"publicationSubtype":{"id":10}},"title":"Population structure and plumage polymorphism: the intraspecific evolutionary relationships of a polymorphic raptor, Buteo jamaicensis harlani","docAbstract":"Phenotypic and molecular genetic data often provide conflicting patterns of intraspecific relationships confounding phylogenetic inference, particularly among birds where a variety of environmental factors may influence plumage characters. Among diurnal raptors, the taxonomic relationship of Buteo jamaicensis harlani to other B. jamaicensis subspecies has been long debated because of the polytypic nature of the plumage characteristics used in subspecies or species designations.
\nTo address the evolutionary relationships within this group, we used data from 17 nuclear microsatellite loci, 430 base pairs of the mitochondrial control region, and 829 base pairs of the melanocortin 1 receptor (Mc1r) to investigate molecular genetic differentiation among three B. jamaicensis subspecies (B. j. borealis, B. j. calurus, B. j. harlani). Bayesian clustering analyses of nuclear microsatellite loci showed no significant differences between B. j. harlani and B. j. borealis. Differences observed between B. j. harlani and B. j. borealis in mitochondrial and microsatellite data were equivalent to those found between morphologically similar subspecies, B. j. borealis andB. j. calurus, and estimates of migration rates among all three subspecies were high. No consistent differences were observed in Mc1r data between B. j. harlani and other B. jamaicensis subspecies or between light and dark color morphs within B. j. calurus, suggesting that Mc1r does not play a significant role in B. jamaicensis melanism.
\nThese data suggest recent interbreeding and gene flow between B. j. harlani and the other B. jamaicensis subspecies examined, providing no support for the historical designation of B. j. harlani as a distinct species.
","language":"English","publisher":"BioMed Central Ltd.","doi":"10.1186/1471-2148-10-224","usgsCitation":"Hull, J.M., Mindell, D.P., Talbot, S.L., Kay, E.H., Hoekstra, H.E., and Ernest, H.B., 2010, Population structure and plumage polymorphism: the intraspecific evolutionary relationships of a polymorphic raptor, Buteo jamaicensis harlani: BMC Evolutionary Biology, v. 10, no. 224, 12 p., https://doi.org/10.1186/1471-2148-10-224.","productDescription":"12 p.","numberOfPages":"12","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-022812","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":475773,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1186/1471-2148-10-224","text":"Publisher Index Page"},{"id":296431,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"224","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"548193c7e4b0aa6d778520f8","contributors":{"authors":[{"text":"Hull, Joshua M.","contributorId":127686,"corporation":false,"usgs":false,"family":"Hull","given":"Joshua","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":526334,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mindell, David P.","contributorId":16762,"corporation":false,"usgs":false,"family":"Mindell","given":"David","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":526335,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Talbot, Sandra L. 0000-0002-3312-7214 stalbot@usgs.gov","orcid":"https://orcid.org/0000-0002-3312-7214","contributorId":140512,"corporation":false,"usgs":true,"family":"Talbot","given":"Sandra","email":"stalbot@usgs.gov","middleInitial":"L.","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":526317,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kay, Emily H.","contributorId":127687,"corporation":false,"usgs":false,"family":"Kay","given":"Emily","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":526338,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hoekstra, Hopi E.","contributorId":127688,"corporation":false,"usgs":false,"family":"Hoekstra","given":"Hopi","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":526339,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ernest, Holly B.","contributorId":127689,"corporation":false,"usgs":false,"family":"Ernest","given":"Holly","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":526340,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70073505,"text":"70073505 - 2010 - Iceberg calving as a primary source of regional‐scale glacier‐generated seismicity in the St. Elias Mountains, Alaska","interactions":[],"lastModifiedDate":"2018-07-07T18:05:22","indexId":"70073505","displayToPublicDate":"2010-01-01T08:51:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2318,"text":"Journal of Geophysical Research F: Earth Surface","active":true,"publicationSubtype":{"id":10}},"title":"Iceberg calving as a primary source of regional‐scale glacier‐generated seismicity in the St. Elias Mountains, Alaska","docAbstract":"Since the installation of the Alaska Regional Seismic Network in the 1970s, data analysts have noted nontectonic seismic events thought to be related to glacier dynamics. While loose associations with the glaciers of the St. Elias Mountains have been made, no detailed study of the source locations has been undertaken. We performed a two-step investigation surrounding these events, beginning with manual locations that guided an automated detection and event sifting routine. Results from the manual investigation highlight characteristics of the seismic waveforms including single-peaked (narrowband) spectra, emergent onsets, lack of distinct phase arrivals, and a predominant cluster of locations near the calving termini of several neighboring tidewater glaciers. Through these locations, comparison with previous work, analyses of waveform characteristics, frequency-magnitude statistics and temporal patterns in seismicity, we suggest calving as a source for the seismicity. Statistical properties and time series analysis of the event catalog suggest a scale-invariant process that has no single or simple forcing. These results support the idea that calving is often a response to short-lived or localized stress perturbations. Our results demonstrate the utility of passive seismic instrumentation to monitor relative changes in the rate and magnitude of iceberg calving at tidewater glaciers that may be volatile or susceptible to ensuing rapid retreat, especially when existing seismic infrastructure can be used.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research F: Earth Surface","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1029/2009JF001598","usgsCitation":"O’Neel, S., Larsen, C., Rupert, N., and Hansen, R., 2010, Iceberg calving as a primary source of regional‐scale glacier‐generated seismicity in the St. Elias Mountains, Alaska: Journal of Geophysical Research F: Earth Surface, v. 115, no. 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Published techniques for the detection of POPs (specifically Σpolychlorinated biphenyls [PCBs], ΣDDTs, Σhexachlorocyclohexanes [HCHs], Σpolycyclic aromatic hydrocarbons [PAHs], Σchlordanes [CHLs], hexachlorobenzene [HCB], dieldrin, and mirex) in the tissue of dead otters were modified for use with serum from live sea otters. Toxic equivalencies (TEQs) were calculated for POPs with proven bioactivity. Strong location effects were seen for most POPs and COECs; sea otters in California generally showed higher mean concentrations than those in Alaska. Differences in contaminant concentrations were detected among age and sex classes, with high levels frequently observed in subadults. Very high levels of ΣDDT were detected in male sea otters in Elkhorn Slough, California, where strong freshwater outflow from agricultural areas occurs seasonally. All contaminants except mirex differed among Alaskan locations; only ΣDDT, HCB, and chlorpyrifos differed within California. High levels of ΣPCB (particularly larger, more persistent congeners) were detected at two locations in Alaska where associations between elevated PCBs and military activity have been established, while higher PCB levels were found at all three locations in California where no point source of PCBs has been identified. Although POP and COEC concentrations in blood may be less likely to reflect total body burden, concentrations in blood of healthy animals may be more biologically relevant and less influenced by state of nutrition or perimortem factors than other tissues routinely sampled.
","language":"English","publisher":"Wildlife Disease Association","publisherLocation":"Lawrence, KS","doi":"10.7589/0090-3558-46.4.1214","usgsCitation":"Jessup, D., Johnson, C., Estes, J., Carlson-Bremer, D., Jarman, W.M., Reese, S., Dodd, E., Tinker, M.T., and Ziccardi, M.H., 2010, Persistent organic pollutants in the blood of free-ranging sea otters (Enhydra lutris ssp.) in Alaska and California: Journal of Wildlife Diseases, v. 46, no. 4, p. 1214-1233, https://doi.org/10.7589/0090-3558-46.4.1214.","productDescription":"20 p.","startPage":"1214","endPage":"1233","numberOfPages":"20","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-016509","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":475776,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.7589/0090-3558-46.4.1214","text":"Publisher Index 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Regional permafrost degradation and associated thaw slumping are responsible for the close stratigraphic and paleoecological relations between Old Crow tephra and last interglacial deposits at some sites in eastern Beringia. ?? 2009 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.quascirev.2009.12.003","issn":"02773791","usgsCitation":"Reyes, A., Jensen, B., Zazula, G., Ager, T.A., Kuzmina, S., La, F.C., and Froese, D., 2010, A late-Middle Pleistocene (Marine Isotope Stage 6) vegetated surface buried by Old Crow tephra at the Palisades, interior Alaska: Quaternary Science Reviews, v. 29, no. 5-6, p. 801-811, https://doi.org/10.1016/j.quascirev.2009.12.003.","startPage":"801","endPage":"811","numberOfPages":"11","costCenters":[],"links":[{"id":217076,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.quascirev.2009.12.003"},{"id":244988,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e435e4b0c8380cd464d5","contributors":{"authors":[{"text":"Reyes, A.V.","contributorId":104738,"corporation":false,"usgs":true,"family":"Reyes","given":"A.V.","email":"","affiliations":[],"preferred":false,"id":459304,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jensen, B.J.L.","contributorId":65696,"corporation":false,"usgs":true,"family":"Jensen","given":"B.J.L.","email":"","affiliations":[],"preferred":false,"id":459301,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zazula, G.D.","contributorId":24595,"corporation":false,"usgs":true,"family":"Zazula","given":"G.D.","affiliations":[],"preferred":false,"id":459299,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ager, T. 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