{"pageNumber":"218","pageRowStart":"5425","pageSize":"25","recordCount":11364,"records":[{"id":1012977,"text":"1012977 - 1998 - Dinucleotide repeat polymorphisms in waterfowl (family Anatidae): Characterization of a sex-linked (Z-specific) and 14 autosomal loci","interactions":[],"lastModifiedDate":"2018-07-17T06:53:33","indexId":"1012977","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":776,"text":"Animal Genetics","active":true,"publicationSubtype":{"id":10}},"title":"Dinucleotide repeat polymorphisms in waterfowl (family Anatidae): Characterization of a sex-linked (Z-specific) and 14 autosomal loci","docAbstract":"<p>Canada goose (<i>Branta Canadensis</i>) and harlequin duck (<i>Histrionicus histrionicus</i>) DNAs were digested with <i>Sau</i>3AI, and size selected (300-700 bp) fragments were ligated into <i>Bam</i>HI-digested pBluscriptII KS<sup>+</sup>. The enrichment protocol of Ostrander <i>et al</i>.<sup>1</sup> was followed. The resulting libraries were screened using a [ƴ-<sup>32</sup>P]ATP end-labelled (CA)<sub>20</sub> oligonucleotides as a hybridization probe. Positive clones were sequenced using cycle-sequencing protocols (Epicentre Technologies, Madison, WI) and primers flanking the inserts. PCR primers were designed to amplify the repeat and yield amplification products of ≈100-200 bp. DNA&nbsp; samples were screened for variation at these loci using [ƴ-<sup>32</sup>P]ATP end-labelled primers. The products were resolved using 6% denaturing polyacrylamide gels and autoradiography.</p>","language":"English","publisher":"Wiley","doi":"10.1046/j.1365-2052.1998.00247.x","usgsCitation":"Buchholz, W., Pearce, J.M., Pierson, B.J., and Scribner, K.T., 1998, Dinucleotide repeat polymorphisms in waterfowl (family Anatidae): Characterization of a sex-linked (Z-specific) and 14 autosomal loci: Animal Genetics, v. 29, no. 4, p. 323-325, https://doi.org/10.1046/j.1365-2052.1998.00247.x.","productDescription":"2 p.","startPage":"323","endPage":"325","costCenters":[{"id":106,"text":"Alaska Biological Science Center","active":false,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":130995,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"4","noUsgsAuthors":false,"publicationDate":"2003-08-11","publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64ac98","contributors":{"authors":[{"text":"Buchholz, W.G.","contributorId":56603,"corporation":false,"usgs":false,"family":"Buchholz","given":"W.G.","email":"","affiliations":[],"preferred":false,"id":318476,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pearce, John M. 0000-0002-8503-5485 jpearce@usgs.gov","orcid":"https://orcid.org/0000-0002-8503-5485","contributorId":181766,"corporation":false,"usgs":true,"family":"Pearce","given":"John","email":"jpearce@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":318474,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pierson, Barbara J. 0000-0001-8233-874X bpierson@usgs.gov","orcid":"https://orcid.org/0000-0001-8233-874X","contributorId":194939,"corporation":false,"usgs":true,"family":"Pierson","given":"Barbara","email":"bpierson@usgs.gov","middleInitial":"J.","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":318477,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Scribner, Kim T.","contributorId":95434,"corporation":false,"usgs":false,"family":"Scribner","given":"Kim","email":"","middleInitial":"T.","affiliations":[{"id":6601,"text":"Michigan State University","active":true,"usgs":false}],"preferred":false,"id":318475,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1013411,"text":"1013411 - 1998 - Serum biochemistry of captive and free-ranging gray wolves (<i>Canis lupus</i>)","interactions":[],"lastModifiedDate":"2017-02-15T12:17:29","indexId":"1013411","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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}},"title":"Serum biochemistry of captive and free-ranging gray wolves (<i>Canis lupus</i>)","docAbstract":"<p>Normal serum biochemistry values are frequently obtained from studies of captive sedentary (zoo) or free-ranging (wild) animals. It is frequently assumed that values from these two populations are directly referable to each other. We tested this assumption using 20 captive gray wolves (<i>Canis lupus</i>) in Minnesota, USA, and 11 free-ranging gray wolves in Alaska, USA. Free-ranging wolves had significantly (<i>P</i>&lt;0.05) lower sodium, chloride, and creatine concentrations and significantly higher potassium and blood urea nitrogen (BUN) concentrations; BUN to creatine ratios; and alanine aminotransferase, aspartate aminotransferase, and creatine kinase activities relative to captive wolves. Corticosteroid-induced alkaline phosphatase activity (a marker of stress in domestic dogs) was detected in 3 of 11 free-ranging wolves and in 0 of 20 captive wolves (<i>P</i> = 0.037). This study provides clear evidence that serum biochemical differences can exist between captive and free-ranging populations of one species. Accordingly, evaluation of the health status of an animal should incorporate an understanding of the potential confounding effect that nutrition, activity level, and environmental stress could have on the factor(s) being measured.</p>","language":"English","publisher":"American Association of Zoo Veterinarians","usgsCitation":"Constable, P., Hinchcliff, K., Demma, N., Callahan, M., Dale, B., Fox, K., Adams, L., Wack, R., and Kramer, L., 1998, Serum biochemistry of captive and free-ranging gray wolves (<i>Canis lupus</i>): Journal of Zoo and Wildlife Medicine, v. 29, no. 4, p. 435-440.","productDescription":"6 p.","startPage":"435","endPage":"440","costCenters":[{"id":106,"text":"Alaska Biological Science Center","active":false,"usgs":true}],"links":[{"id":134354,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fce4b07f02db5f5ac2","contributors":{"authors":[{"text":"Constable, Peter","contributorId":40954,"corporation":false,"usgs":false,"family":"Constable","given":"Peter","email":"","affiliations":[],"preferred":false,"id":318646,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hinchcliff, Ken","contributorId":67479,"corporation":false,"usgs":false,"family":"Hinchcliff","given":"Ken","email":"","affiliations":[],"preferred":false,"id":318649,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Demma, Nick","contributorId":105682,"corporation":false,"usgs":false,"family":"Demma","given":"Nick","email":"","affiliations":[{"id":20307,"text":"US National Park Service","active":true,"usgs":false}],"preferred":false,"id":318652,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Callahan, Margaret","contributorId":16317,"corporation":false,"usgs":false,"family":"Callahan","given":"Margaret","email":"","affiliations":[],"preferred":false,"id":318647,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dale, B.W.","contributorId":48902,"corporation":false,"usgs":true,"family":"Dale","given":"B.W.","email":"","affiliations":[],"preferred":false,"id":318648,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fox, Kevin","contributorId":12828,"corporation":false,"usgs":false,"family":"Fox","given":"Kevin","email":"","affiliations":[{"id":13670,"text":"National Park Service, Denali National Park","active":true,"usgs":false}],"preferred":false,"id":318644,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Adams, Layne G. 0000-0001-6212-2896 ladams@usgs.gov","orcid":"https://orcid.org/0000-0001-6212-2896","contributorId":2776,"corporation":false,"usgs":true,"family":"Adams","given":"Layne G.","email":"ladams@usgs.gov","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":318651,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Wack, Ray","contributorId":70355,"corporation":false,"usgs":false,"family":"Wack","given":"Ray","email":"","affiliations":[],"preferred":false,"id":318650,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Kramer, Lynn","contributorId":181741,"corporation":false,"usgs":false,"family":"Kramer","given":"Lynn","email":"","affiliations":[],"preferred":false,"id":318645,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":1003619,"text":"1003619 - 1998 - Blood lead concentrations of spectacled eiders near the Kashunuk River, Yukon Delta National Wildlife Refuge, Alaska","interactions":[],"lastModifiedDate":"2020-02-21T12:40:25","indexId":"1003619","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1479,"text":"Ecotoxicology","active":true,"publicationSubtype":{"id":10}},"title":"Blood lead concentrations of spectacled eiders near the Kashunuk River, Yukon Delta National Wildlife Refuge, Alaska","docAbstract":"<p><span>We collected, 342 blood samples from spectacled eiders (</span><i class=\"EmphasisTypeItalic \">Somateria fischeri</i><span>) on their breeding grounds in western Alaska from late May through to early August 1993–1995. Lead concentrations of ≥0.50 p.p.m. wet weight were found in the blood of 20% of the adult female eiders, 2% of the adult males and 6% of the ducklings. Lead was detected (≥0.02 p.p.m.) more frequently in the blood of adult females than in adult males or ducklings and the maximum concentrations were 14.37, 0.50 and 4.28 p.p.m. wet weight, respectively. In adult females, there was a significant difference in the proportion of detectable blood lead concentrations between three collection times (arrival/nesting, hatch and brood rearing), with the highest proportion (92%) occurring at hatch. Nine hens with blood lead concentrations of ≥0.50 p.p.m. were captured a second time several weeks to 1 year later. In the hens sampled twice at intervals of several weeks, the blood lead concentrations increased and declined at mean daily rates of 1.10 and 0.94, respectively. The lead concentrations in the blood of adults were not correlated with body weights. Radiographs were taken of 119 eiders and corresponding blood samples from 98 of these birds were analysed for lead. Ingested shot was seen in X-rays of 12 adults and three ducklings and, of the 13 blood samples tested, all had detectable lead concentrations. Of the birds without radiographic evidence of ingested shot, 84% of the adult females, 19% of the adult males and 17% of the ducklings had detectable lead concentrations in their blood. Breeding ground exposure of waterfowl to lead shot is unusual and is of particular concern in spectacled eiders because of their threatened status and declining numbers in western Alaska.</span></p>","language":"English","publisher":"Springer","doi":"10.1023/A:1014308411665","usgsCitation":"Franson, J.C., Petersen, M.R., Creekmore, L., Flint, P.L., and Smith, M.R., 1998, Blood lead concentrations of spectacled eiders near the Kashunuk River, Yukon Delta National Wildlife Refuge, Alaska: Ecotoxicology, v. 7, no. 3, p. 175-181, https://doi.org/10.1023/A:1014308411665.","productDescription":"7 p.","startPage":"175","endPage":"181","onlineOnly":"N","additionalOnlineFiles":"N","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":133984,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon Delta National Wildlife Refuge","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -160.94970703125,\n              63.75334975181205\n            ],\n            [\n              -159.49951171875,\n              62.1655019058381\n            ],\n            [\n              -158.57666015625,\n              61.72111756281976\n            ],\n            [\n              -158.5986328125,\n              60.8663124746226\n            ],\n            [\n              -159.45556640625,\n              59.567723306212955\n            ],\n            [\n              -162.31201171874997,\n              59.20968817840924\n            ],\n            [\n              -164.20166015625,\n              59.55659188568175\n            ],\n            [\n              -166.92626953124997,\n              59.57885104663186\n            ],\n            [\n              -167.89306640624997,\n              60.04290359809164\n            ],\n            [\n              -167.6513671875,\n              60.56537850464181\n            ],\n            [\n              -166.55273437499997,\n              60.823494332539646\n            ],\n            [\n              -166.376953125,\n              61.19621314083867\n            ],\n            [\n              -166.55273437499997,\n              62.103882522897855\n            ],\n            [\n              -166.5087890625,\n              62.67414334669093\n            ],\n            [\n              -165.6298828125,\n              63.174193604205094\n            ],\n            [\n              -165.12451171875,\n              63.470144746565445\n            ],\n            [\n              -164.15771484375,\n              63.558338036300746\n            ],\n            [\n              -163.125,\n              63.80189351770543\n            ],\n            [\n              -162.20214843749997,\n              63.918058296491104\n            ],\n            [\n              -161.279296875,\n              63.90839622003119\n            ],\n            [\n              -160.94970703125,\n              63.75334975181205\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"7","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a08e4b07f02db5fa4a1","contributors":{"authors":[{"text":"Franson, J. 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,{"id":70189290,"text":"70189290 - 1998 - Identification of polar bear den habitat in northern Alaska","interactions":[],"lastModifiedDate":"2017-08-29T18:18:40","indexId":"70189290","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"seriesTitle":{"id":5410,"text":"Occasional Papers of the IUCN Species Survival Comission (SSC)","active":true,"publicationSubtype":{"id":19}},"seriesNumber":"19","title":"Identification of polar bear den habitat in northern Alaska","docAbstract":"<p>The goal of this project is to refine the information collected previously on maternal denning, into digital maps that show where polar bears are likely to create future dens in northern Alaska. Such maps will allow a priori recommendations regarding timing and geographic locations of proposed human developments; and hence provide managers with an important mitigation and management tool.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Polar bears: Proceedings of the twelfth Working meeting of the IUCN/SSC Polar Bear Specialist Group (Occasional Paper of the IUCN Species Survival Group (SSC) no. 19)","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"12th Working Meeting of the IUCN/SSC Polar Bear Specialist Group","conferenceDate":"February 3-7, 1997","conferenceLocation":"Oslo, Norway","language":"English","publisher":"IUCN","publisherLocation":"Gland, Switzerland","isbn":"2-8317-0459-6","usgsCitation":"Amstrup, S.C., and Garner, G.W., 1998, Identification of polar bear den habitat in northern Alaska, <i>in</i> Polar bears: Proceedings of the twelfth Working meeting of the IUCN/SSC Polar Bear Specialist Group (Occasional Paper of the IUCN Species Survival Group (SSC) no. 19), Oslo, Norway, February 3-7, 1997, p. 141-145.","productDescription":"5 p.","startPage":"141","endPage":"145","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":343490,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":343489,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://portals.iucn.org/library/node/7509"}],"country":"United States","state":"Alaska","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59634097e4b0d1f9f059d80c","contributors":{"compilers":[{"text":"Derocher, Andrew E.","contributorId":96189,"corporation":false,"usgs":false,"family":"Derocher","given":"Andrew","email":"","middleInitial":"E.","affiliations":[{"id":12980,"text":"Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada","active":true,"usgs":false}],"preferred":false,"id":703963,"contributorType":{"id":3,"text":"Compilers"},"rank":1},{"text":"Garner, Gerald W.","contributorId":149918,"corporation":false,"usgs":false,"family":"Garner","given":"Gerald","email":"","middleInitial":"W.","affiliations":[{"id":13117,"text":"Institute of Arctic Biology, University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":703964,"contributorType":{"id":3,"text":"Compilers"},"rank":2},{"text":"Lunn, Nicholas J.","contributorId":78421,"corporation":false,"usgs":true,"family":"Lunn","given":"Nicholas J.","affiliations":[],"preferred":false,"id":703965,"contributorType":{"id":3,"text":"Compilers"},"rank":3},{"text":"Wiig, Oystein","contributorId":192053,"corporation":false,"usgs":false,"family":"Wiig","given":"Oystein","email":"","affiliations":[],"preferred":false,"id":703966,"contributorType":{"id":3,"text":"Compilers"},"rank":4}],"editors":[{"text":"Derocher, Andrew E.","contributorId":96189,"corporation":false,"usgs":false,"family":"Derocher","given":"Andrew","email":"","middleInitial":"E.","affiliations":[{"id":12980,"text":"Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada","active":true,"usgs":false}],"preferred":false,"id":703959,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Garner, Gerald W.","contributorId":149918,"corporation":false,"usgs":false,"family":"Garner","given":"Gerald","email":"","middleInitial":"W.","affiliations":[{"id":13117,"text":"Institute of Arctic Biology, University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":703960,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Lunn, Nicholas J.","contributorId":78421,"corporation":false,"usgs":true,"family":"Lunn","given":"Nicholas J.","affiliations":[],"preferred":false,"id":703961,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Wiig, Oystein","contributorId":192053,"corporation":false,"usgs":false,"family":"Wiig","given":"Oystein","email":"","affiliations":[],"preferred":false,"id":703962,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Amstrup, Steven C.","contributorId":67034,"corporation":false,"usgs":false,"family":"Amstrup","given":"Steven","email":"","middleInitial":"C.","affiliations":[{"id":13182,"text":"Polar Bears International","active":true,"usgs":false}],"preferred":false,"id":703967,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Garner, Gerald W.","contributorId":149918,"corporation":false,"usgs":false,"family":"Garner","given":"Gerald","email":"","middleInitial":"W.","affiliations":[{"id":13117,"text":"Institute of Arctic Biology, University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":703968,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":32334,"text":"ofr98135 - 1998 - Geology of Akutan Island, Alaska","interactions":[],"lastModifiedDate":"2022-10-03T20:46:30.445511","indexId":"ofr98135","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-135","title":"Geology of Akutan Island, Alaska","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98135","usgsCitation":"Richter, D.H., Waythomas, C.F., McGimsey, R.G., and Stelling, P.L., 1998, Geology of Akutan Island, Alaska: U.S. Geological Survey Open-File Report 98-135, Report: 22 p.; 1 Plate: 45.0 x 36.0 inches, https://doi.org/10.3133/ofr98135.","productDescription":"Report: 22 p.; 1 Plate: 45.0 x 36.0 inches","costCenters":[{"id":121,"text":"Alaska Volcano Observatory","active":false,"usgs":true}],"links":[{"id":109014,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_19102.htm","linkFileType":{"id":5,"text":"html"}},{"id":395979,"rank":6,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0135/pdf/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":3323,"rank":101,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/0135/","linkFileType":{"id":5,"text":"html"}},{"id":161127,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr98135.jpg"},{"id":284310,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/0135/pdf/of98-135.pdf","text":"Plate 1"}],"scale":"48000","country":"United States","state":"Alaska","otherGeospatial":"Akutan Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -166.1579132080078,\n              54.02955339563476\n            ],\n            [\n              -165.64498901367188,\n              54.02955339563476\n            ],\n            [\n              -165.64498901367188,\n              54.23032019657872\n            ],\n            [\n              -166.1579132080078,\n              54.23032019657872\n            ],\n            [\n              -166.1579132080078,\n              54.02955339563476\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad6e4b07f02db683ff3","contributors":{"authors":[{"text":"Richter, Donald H.","contributorId":61021,"corporation":false,"usgs":true,"family":"Richter","given":"Donald","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":208294,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waythomas, Christopher F. 0000-0002-3898-272X cwaythomas@usgs.gov","orcid":"https://orcid.org/0000-0002-3898-272X","contributorId":640,"corporation":false,"usgs":true,"family":"Waythomas","given":"Christopher","email":"cwaythomas@usgs.gov","middleInitial":"F.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":208292,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McGimsey, Robert G. 0000-0001-5379-7779 mcgimsey@usgs.gov","orcid":"https://orcid.org/0000-0001-5379-7779","contributorId":2352,"corporation":false,"usgs":true,"family":"McGimsey","given":"Robert","email":"mcgimsey@usgs.gov","middleInitial":"G.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":208293,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stelling, Peter L.","contributorId":84414,"corporation":false,"usgs":true,"family":"Stelling","given":"Peter","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":208295,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70021332,"text":"70021332 - 1998 - Evaluation of radio-tracking and strip transect methods for determining foraging ranges of Black-Legged Kittiwakes","interactions":[],"lastModifiedDate":"2017-02-15T14:49:59","indexId":"70021332","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3551,"text":"The Condor","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of radio-tracking and strip transect methods for determining foraging ranges of Black-Legged Kittiwakes","docAbstract":"<p>We compared strip transect and radio-tracking methods of determining foraging range of Black-legged Kittiwakes (<i>Rissa tridactyla</i>). The mean distance birds were observed from their colony determined by radio-tracking was significantly greater than the mean value calculated from strip transects. We determined that this difference was due to two sources of bias: (1) as distance from the colony increased, the area of available habitat also increased resulting in decreasing bird densities (bird spreading). Consequently, the probability of detecting birds during transect surveys also would decrease as distance from the colony increased, and (2) the maximum distance birds were observed from the colony during radio-tracking exceeded the extent of the strip transect survey. We compared the observed number of birds seen on the strip transect survey to the predictions of a model of the decreasing probability of detection due to bird spreading. Strip transect data were significantly different from modeled data; however, the field data were consistently equal to or below the model predictions, indicating a general conformity to the concept of declining detection at increasing distance. We conclude that radio-tracking data gave a more representative indication of foraging distances than did strip transect sampling. Previous studies of seabirds that have used strip transect sampling without accounting for bird spreading or the effects of study-area limitations probably underestimated foraging range.</p>","language":"English","publisher":"Cooper Ornithological Society","doi":"10.2307/1369753","usgsCitation":"Ostrand, W.D., Drew, G., Suryan, R., and McDonald, L., 1998, Evaluation of radio-tracking and strip transect methods for determining foraging ranges of Black-Legged Kittiwakes: The Condor, v. 100, no. 4, p. 709-718, https://doi.org/10.2307/1369753.","productDescription":"10 p.","startPage":"709","endPage":"718","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":487360,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2307/1369753","text":"Publisher Index Page"},{"id":230069,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"100","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0cb4e4b0c8380cd52c74","contributors":{"authors":[{"text":"Ostrand, William D.","contributorId":90898,"corporation":false,"usgs":false,"family":"Ostrand","given":"William","email":"","middleInitial":"D.","affiliations":[{"id":609,"text":"Utah Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"preferred":false,"id":389499,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drew, G.S.","contributorId":95415,"corporation":false,"usgs":true,"family":"Drew","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":389500,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Suryan, R.M.","contributorId":52919,"corporation":false,"usgs":true,"family":"Suryan","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":389498,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McDonald, L.L.","contributorId":19906,"corporation":false,"usgs":true,"family":"McDonald","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":389497,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":22061,"text":"ofr98360 - 1998 - Preliminary volcano-hazard assessment for Akutan Volcano, east-central Aleutian Islands, Alaska","interactions":[],"lastModifiedDate":"2022-12-21T20:26:43.652431","indexId":"ofr98360","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-360","title":"Preliminary volcano-hazard assessment for Akutan Volcano, east-central Aleutian Islands, Alaska","docAbstract":"<p>Akutan Volcano is a 1100-meter-high stratovolcano on Akutan Island in the east-central Aleutian Islands of southwestern Alaska. The volcano is located about 1238 kilometers southwest of Anchorage and about 56 kilometers east of Dutch Harbor/Unalaska. Eruptive activity has occurred at least 27 times since historical observations were recorded beginning in the late 1700's. Recent eruptions produced only small amounts of fine volcanic ash that fell primarily on the upper flanks of the volcano. Small amounts of ash fell on the Akutan Harbor area during eruptions in 1911, 1948, 1987, and 1989. Plumes of volcanic ash are the primary hazard associated with eruptions of Akutan Volcano and are a major hazard to all aircraft using the airfield at Dutch Harbor or approaching Akutan Island. Eruptions similar to historical Akutan eruptions should be anticipated in the future. Although unlikely, eruptions larger than those of historical time could generate significant amounts of volcanic ash, fallout, pyroclastic flows, and lahars that would be hazardous to life and property on all sectors of the volcano and other parts of the island, but especially in the major valleys that head on the volcano flanks. During a large eruption an ash cloud could be produced that may be hazardous to aircraft using the airfield at Cold Bay and the airspace downwind from the volcano. In the event of a large eruption, volcanic ash fallout could be relatively thick over parts of Akutan Island and volcanic bombs could strike areas more than 10 kilometers from the volcano.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98360","issn":"0094-9140","usgsCitation":"Waythomas, C.F., Power, J.A., Richter, D.H., and McGimsey, R.G., 1998, Preliminary volcano-hazard assessment for Akutan Volcano, east-central Aleutian Islands, Alaska: U.S. Geological Survey Open-File Report 98-360, Report: v, 36 p.; 1 Plate: 46.01 x 22.74 inches, https://doi.org/10.3133/ofr98360.","productDescription":"Report: v, 36 p.; 1 Plate: 46.01 x 22.74 inches","costCenters":[],"links":[{"id":410884,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/0360/plate-1-1.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":410883,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0360/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":395569,"rank":1,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_19104.htm","linkFileType":{"id":5,"text":"html"}},{"id":153019,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0360/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Akutan Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -166.18194580078125,\n              54.02713344412541\n            ],\n            [\n              -165.673828125,\n              54.02713344412541\n            ],\n            [\n              -165.673828125,\n              54.220284882124005\n            ],\n            [\n              -166.18194580078125,\n              54.220284882124005\n            ],\n            [\n              -166.18194580078125,\n              54.02713344412541\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a93e4b07f02db658733","contributors":{"authors":[{"text":"Waythomas, Christopher F. 0000-0002-3898-272X cwaythomas@usgs.gov","orcid":"https://orcid.org/0000-0002-3898-272X","contributorId":640,"corporation":false,"usgs":true,"family":"Waythomas","given":"Christopher","email":"cwaythomas@usgs.gov","middleInitial":"F.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":186913,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Power, John A. 0000-0002-7233-4398 jpower@usgs.gov","orcid":"https://orcid.org/0000-0002-7233-4398","contributorId":2768,"corporation":false,"usgs":true,"family":"Power","given":"John","email":"jpower@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":186915,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Richter, Donlad H.","contributorId":91891,"corporation":false,"usgs":true,"family":"Richter","given":"Donlad","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":186916,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McGimsey, Robert G. 0000-0001-5379-7779 mcgimsey@usgs.gov","orcid":"https://orcid.org/0000-0001-5379-7779","contributorId":2352,"corporation":false,"usgs":true,"family":"McGimsey","given":"Robert","email":"mcgimsey@usgs.gov","middleInitial":"G.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":186914,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020855,"text":"70020855 - 1998 - Survival costs of chick rearing in black-legged kittiwakes","interactions":[],"lastModifiedDate":"2017-11-17T16:48:12","indexId":"70020855","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2158,"text":"Journal of Animal Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Survival costs of chick rearing in black-legged kittiwakes","docAbstract":"<p><strong>1.</strong> We tested for costs of chick rearing in the black-legged kittiwake <i>Rissa tridactyla</i> (Linnaeus) by removing entire clutches from 149 of 405 randomly selected nests, in which one or both mates was colour-banded. After the manipulation, we monitored adult nest attendance and body condition at unmanipulated and manipulated nests, and measured the survival and fecundity of these adults the following year.</p><p><strong>2.</strong> Late in the chick-rearing period, adults from unmanipulated nests (i.e. with chicks) went on significantly longer foraging trips, and were significantly lighter for their size, than adults from manipulated nests (i.e. without chicks).</p><p><strong>3.</strong> Adults from unmanipulated nests also survived to the following nesting season at a significantly lower rate than those from the manipulated nests (0·898 vs. 0·953), suggesting that attempting to raise chicks can reduce life expectancy by 55%.</p><p><strong>4.</strong> There was a tendency for adults from nests that were unmanipulated in year one to have lower reproductive success in year two, primarily because of reduced fledging success, and a higher incidence of non-breeding.</p><p><strong>5.</strong> These findings suggest that mass loss in kittiwakes during chick rearing may not be adaptive. Raising chicks can lead to reproductive costs, and the causal mechanism appears to be a reduction in body condition.</p><p><strong>6.</strong> We compare our results with previous brood (or clutch) size manipulation experiments that have measured adult body condition, survival and/or future fecundity. Although the empirical evidence suggests that long-lived species are more likely to experience survival costs than short-lived species, we believe the opposite may be true. We suggest that shifting the experimental protocol of cost of reproduction studies from brood enlargements (an approach taken in most prior studies) to brood reductions will provide more accurate quantifications of naturally occurring costs.</p><p><strong>7.</strong> The cost of reproduction is one mechanism proposed to explain the reduced survival rates reported for kittiwake populations in the North Atlantic relative to those in the North Pacific ocean. Oceanographic data, however, suggest that lower food availability may limit survival of kittiwakes in the North Atlantic where a deeper mixed layer and reduced primary production combine to make conditions less favourable for this seabird during the winter months.</p>","language":"English","publisher":"Wiley","doi":"10.1046/j.1365-2656.1998.00233.x","issn":"00218790","usgsCitation":"Golet, G.H., Irons, D.B., and Estes, J.A., 1998, Survival costs of chick rearing in black-legged kittiwakes: Journal of Animal Ecology, v. 67, no. 5, p. 827-841, https://doi.org/10.1046/j.1365-2656.1998.00233.x.","productDescription":"15 p.","startPage":"827","endPage":"841","costCenters":[],"links":[{"id":230156,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Prince William Sound","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -149.21630859375,\n              59.712097173322924\n            ],\n            [\n              -144.9755859375,\n              59.712097173322924\n            ],\n            [\n              -144.9755859375,\n              61.44927080076419\n            ],\n            [\n              -149.21630859375,\n              61.44927080076419\n            ],\n            [\n              -149.21630859375,\n              59.712097173322924\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"67","issue":"5","noUsgsAuthors":false,"publicationDate":"2001-12-25","publicationStatus":"PW","scienceBaseUri":"505ba2bce4b08c986b31f900","contributors":{"authors":[{"text":"Golet, Gregory H.","contributorId":89844,"corporation":false,"usgs":false,"family":"Golet","given":"Gregory","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":387781,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Irons, David B.","contributorId":63658,"corporation":false,"usgs":true,"family":"Irons","given":"David","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":387779,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Estes, James A. jim_estes@usgs.gov","contributorId":53325,"corporation":false,"usgs":true,"family":"Estes","given":"James","email":"jim_estes@usgs.gov","middleInitial":"A.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":6949,"text":"University of California, Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":387780,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020850,"text":"70020850 - 1998 - Settlement rate of lead shot in tundra wetlands","interactions":[],"lastModifiedDate":"2024-12-27T22:17:47.043121","indexId":"70020850","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Settlement rate of lead shot in tundra wetlands","docAbstract":"Several species of breeding waterfowl have been shown to be exposed to lead shot on the Yukon-Kuskokwim (Y-K) Delta, Alaska. I 'seeded' experimental plots with number 4 lead shot to determine the settlement rate of shot in wetland types commonly used by foraging waterfowl. I resampled plots for 3 years, using a suction dredge to remove sediment in 4-cm layers. There was no consistent change in the proportion of shot recovered in the 0-4-cm layer among years or habitat types. My results suggest lead shot is available to feeding waterfowl for many years, and that exposure of waterfowl to lead poisoning will likely occur for >3 years after the use of lead shot is curtailed.","language":"English","publisher":"Wiley","doi":"10.2307/3802563","issn":"0022541X","usgsCitation":"Flint, P.L., 1998, Settlement rate of lead shot in tundra wetlands: Journal of Wildlife Management, v. 62, no. 3, p. 1099-1102, https://doi.org/10.2307/3802563.","productDescription":"4 p.","startPage":"1099","endPage":"1102","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":487366,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2307/3802563","text":"Publisher Index Page"},{"id":230077,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon-Kuskokwim Delta","volume":"62","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8d75e4b08c986b318405","contributors":{"authors":[{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","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":387761,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70020824,"text":"70020824 - 1998 - Forage site selection by lesser snow geese during autumn staging on the Arctic National Wildlife Refuge, Alaska","interactions":[],"lastModifiedDate":"2018-06-12T21:23:59","indexId":"70020824","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3773,"text":"Wildlife Monographs","active":true,"publicationSubtype":{"id":10}},"title":"Forage site selection by lesser snow geese during autumn staging on the Arctic National Wildlife Refuge, Alaska","docAbstract":"<p><span>Lesser snow geese (</span><i>Chen caerulescens caerulescens</i><span>) of the Western Canadian Arctic Population feed intensively for 2-4 weeks on the coastal plain of the Beaufort Sea in Canada and Alaska at the beginning of their autumn migration. Petroleum leasing proposed for the Alaskan portion of the staging area on the Arctic National Wildlife Refuge (ANWR) could affect staging habitats and their use by geese. Therefore we studied availability, distribution, and use by snow geese of tall and russett cotton-grass (</span><i>Eriophorum angustifolium</i><span> and </span><i>E. russeolum</i><span>, respectively) feeding habitats on the ANWR. We studied selection of feeding habitats at 3 spatial scales (feeding sites [0.06 m</span><sup>2</sup><span>], feeding patches [ca. 100 m</span><sup>2</sup><span>], and feeding areas [&gt;1 ha]) during 1990-93. We used logistic regression analysis to discriminate differences in soil moisture and vegetation between 1,548 feeding sites where snow geese exploited individual cotton-grass plants and 1,143 unexploited sites at 61 feeding patches in 1990. Feeding likelihood increased with greater soil moisture and decreased where nonforage species were present. We tested the logistic regression model in 1991 by releasing human-imprinted snow geese into 4 10 × 20-m enclosed plots where plant communities had been mapped, habitats sampled, and feeding probabilities calculated. Geese selected more feeding sites per square meter in areas of predicted high quality feeding habitat (feeding probability ≥ 0.6) than in medium (feeding probability = 0.3-0.59) or poor (feeding probability &lt; 0.3) quality habitat (P &lt; 0.0001). Geese increasingly used medium quality areas and spent more time feeding as trials progressed and forage was presumably reduced in high quality habitats. We examined relationships between underground biomass of plants, feeding probability, and surface microrelief at 474 0.06- m</span><sup>2</sup><span> sites in 20 thermokarst pits in 1992. Feeding probability was correlated with the percentage of underground biomass composed of cotton-grass (r = 0.56). Feeding probability and relative availability of cotton-grass forage were highest in flooded soils along the ecotone of flooded and upland habitats. In 1992, we also used the logistic regression model to estimate availability of high quality feeding sites on 192 80 × 90-m plots that were randomly located on 24 study areas. A mean of 1.6% of the area sampled in each plot was classified as high quality feeding habitat at 23 of the study areas. Relative availability of high quality sites was highest in troughs, thermokarst pits, and water tracks because saturated soils in those microreliefs were dominated by cotton-grass. Relative availability of high quality sites was lower in saturated soils of basins (low-centered polygons, wet meadows, and strangmoor) because that microrelief was dominated by </span><i>Carex</i><span> spp. Most (63%) of the saturated area on the ANWR coastal plain was in basins. We examined distribution of feeding patches relative to microrelief in 49 snow goose feeding areas in 1993. Only 2.5% of the tundra in each feeding area was exploited by snow geese. Snow geese preferentially fed in thermokarst pits, water tracks, and troughs, and avoided basins and uplands. Feeding areas had more thermokarst pit but less basin microrelief than adjacent randomly-selected areas. Thermokarst pits and water tracks occurred most frequently in regions of the coastal plain where geese were observed most often during aerial surveys (1982-93). Microrelief influenced selection of feeding patches and feeding areas and may have affected snow goose distribution on the ANWR. Potential feeding patches were widely distributed but composed a small percentage (≤2.5%) of the tundra landscape and were highly interspersed with less suitable habitat. The Western Canadian Arctic Population probably used a large staging area on the Beaufort Sea coastal plain because snow geese exploited a spatially and temporally heterogeneous resource.</span></p>","language":"English","publisher":"Wiley","issn":"00840173","usgsCitation":"Hupp, J.W., and Robertson, D.G., 1998, Forage site selection by lesser snow geese during autumn staging on the Arctic National Wildlife Refuge, Alaska: Wildlife Monographs, v. 138, p. 1-40.","productDescription":"41 p.","startPage":"1","endPage":"40","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":230275,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Arctic National Wildlife Refuge","volume":"138","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a12f2e4b0c8380cd5446a","contributors":{"authors":[{"text":"Hupp, Jerry W. 0000-0002-6439-3910 jhupp@usgs.gov","orcid":"https://orcid.org/0000-0002-6439-3910","contributorId":127803,"corporation":false,"usgs":true,"family":"Hupp","given":"Jerry","email":"jhupp@usgs.gov","middleInitial":"W.","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":387669,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robertson, Donna G.","contributorId":29965,"corporation":false,"usgs":true,"family":"Robertson","given":"Donna","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":387670,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020732,"text":"70020732 - 1998 - Tsivat Basin conduit system persists through two surges, Bering Piedmont Glacier, Alaska","interactions":[],"lastModifiedDate":"2023-12-20T13:25:59.0231","indexId":"70020732","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Tsivat Basin conduit system persists through two surges, Bering Piedmont Glacier, Alaska","docAbstract":"<p>The 1993–1995 surge of Bering Glacier, Alaska, occurred in two distinct phases. Phase 1 of the surge began on the eastern sector in July, 1993 and ended in July, 1994 after a powerful outburst of subglacial meltwater into Tsivat Lake basin on the north side of Weeping Peat Island. Within days, jökulhlaup discharge built a 1.5 km<sup>2</sup><span>&nbsp;</span>delta of ice blocks (25–30 m) buried in outwash. By late October 1994, discharge temporarily shifted to a vent on Weeping Peat Island, where a second smaller outburst dissected the island and built two new sandar. During phase 2, which began in spring 1995 and ended within five months, continuous discharge issued from several vents along the ice front on Weeping Peat Island before returning to the Tsivat Basin.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1998)110<0877:TBCSPT>2.3.CO;2","issn":"00167606","usgsCitation":"Fleisher, P., Cadwell, D., and Muller, E., 1998, Tsivat Basin conduit system persists through two surges, Bering Piedmont Glacier, Alaska: Geological Society of America Bulletin, v. 110, no. 7, p. 877-887, https://doi.org/10.1130/0016-7606(1998)110<0877:TBCSPT>2.3.CO;2.","productDescription":"11 p.","startPage":"877","endPage":"887","numberOfPages":"11","costCenters":[],"links":[{"id":231237,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Bering Piedmont Glacier","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -147.39247492816136,\n              63.2991286669656\n            ],\n            [\n              -147.39247492816136,\n              59.807561616451096\n            ],\n            [\n              -140.1854436781614,\n              59.807561616451096\n            ],\n            [\n              -140.1854436781614,\n              63.2991286669656\n            ],\n            [\n              -147.39247492816136,\n              63.2991286669656\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"110","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb8a3e4b08c986b32799e","contributors":{"authors":[{"text":"Fleisher, P.J.","contributorId":70664,"corporation":false,"usgs":true,"family":"Fleisher","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":387308,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cadwell, D.H.","contributorId":97552,"corporation":false,"usgs":true,"family":"Cadwell","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":387309,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Muller, E.H.","contributorId":35350,"corporation":false,"usgs":true,"family":"Muller","given":"E.H.","email":"","affiliations":[],"preferred":false,"id":387307,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020619,"text":"70020619 - 1998 - A drift experiment to assess the influence of wind on recovery of oiled seabirds on St Paul Island, Alaska","interactions":[],"lastModifiedDate":"2024-12-30T14:42:12.509021","indexId":"70020619","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2676,"text":"Marine Pollution Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"A drift experiment to assess the influence of wind on recovery of oiled seabirds on St Paul Island, Alaska","docAbstract":"<p><span>We used wooden blocks to estimate the proportion of oiled seabird carcasses that were likely to be recovered on beaches of St Paul Island, Alaska following a near-shore oil spill. We released a total of 302 blocks 6 km north of the island in 1997 at the site of a 17 II 1996 oil spill. We used a paired design and released half the blocks when the winds were onshore and released the second half when the winds were offshore. We systematically searched beaches after the second release to recover blocks. We recovered 93 of 152 (61%) blocks released when winds were onshore but only 1 of 150 (0.7%) blocks released when winds were offshore. Given that winds following the 1996 spill were offshore, we conclude that most birds killed at sea following the 1996 spill were likely not recovered on beaches.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0025-326X(97)00178-1","issn":"0025326X","usgsCitation":"Flint, P.L., and Fowler, A.C., 1998, A drift experiment to assess the influence of wind on recovery of oiled seabirds on St Paul Island, Alaska: Marine Pollution Bulletin, v. 36, no. 2, p. 165-166, https://doi.org/10.1016/S0025-326X(97)00178-1.","productDescription":"2 p.","startPage":"165","endPage":"166","numberOfPages":"2","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":231150,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e3c6e4b0c8380cd46202","contributors":{"authors":[{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","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":386882,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fowler, A. C.","contributorId":95836,"corporation":false,"usgs":true,"family":"Fowler","given":"A.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":386883,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020618,"text":"70020618 - 1998 - Structural and kinematic evolution of the Yukon-Tanana upland tectonites, east-central Alaska: A record of late Paleozoic to Mesozoic crustal assembly","interactions":[],"lastModifiedDate":"2019-12-17T14:00:57","indexId":"70020618","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Structural and kinematic evolution of the Yukon-Tanana upland tectonites, east-central Alaska: A record of late Paleozoic to Mesozoic crustal assembly","docAbstract":"The Yukon-Tanana terrane, the largest tectonostratigraphic terrane in the northern North American Cordillera, is polygenetic and not a single terrane. Lineated and foliated (L-S) tectonites, which characterize the Yukon-Tanana terrane, record multiple deformations and formed at different times. We document the polyphase history recorded by L-S tectonites within the Yukon-Tanana upland, east-central Alaska. These upland tectonites compose a heterogeneous assemblage of deformed igneous and metamorphic rocks that form the Alaskan part of what has been called the Yukon-Tanana composite terrane. We build on previous kinematic data and establish the three-dimensional architecture of the upland tectonites through kinematic and structural analysis of more than 250 oriented samples, including quartz c-axis fabric analysis of 39 samples. Through this study we distinguish allochthonous tectonites from parautochthonous tectonites within the Yukon-Tanana upland. The upland tectonites define a regionally coherent stacking order: from bottom to top, they are lower plate North American parautochthonous attenuated continental margin; continentally derived marginal-basin strata; and upper plate ocean-basin and island-arc rocks, including some continental basement rocks. We delineate three major deformation events in time, space, and structural level across the upland from the United States-Canada border to Fairbanks, Alaska: (1) pre-Early Jurassic (>212 Ma) northeast-directed, apparent margin-normal contraction that affected oceanic rocks; (2) late Early to early Middle Jurassic (>188-185 Ma) northwest-directed, apparent margin-parallel contraction and imbrication that resulted in juxtaposition of the allochthonous tectonites with parautochthonous continental rocks; and (3) Early Cretaceous (135-110 Ma) southeast-directed crustal extension that resulted in exposure of the structurally deepest, parautochthonous continental rocks. The oldest event represents deformation within a west-dipping (present coordinates) Permian-Triassic subduction zone. The second event records Early to Middle Jurassic collision of the arc and subduction complex with North American crust, and the third event reflects mid-Cretaceous southeast-directed crustal extension. Events one and two can be recognized and correlated through southern Yukon, even though this region was affected by mid-Cretaceous dextral shear along steep northwest-striking faults. Our data support a model of crustal assembly originally proposed by D. Tempelman-Kluit in which previously deformed allochthonous rocks were thrust over parautochthonous rocks of the attenuated North American margin in Middle Jurassic time. Approximately 50 m.y. after tectonic accretion, east-central Alaska was dissected by crustal extension, exposing overthrust parautochthonous strata.","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1998)110<0211:SAKEOT>2.3.CO;2","issn":"00167606","usgsCitation":"Hansen, V.L., and Dusel-Bacon, C., 1998, Structural and kinematic evolution of the Yukon-Tanana upland tectonites, east-central Alaska: A record of late Paleozoic to Mesozoic crustal assembly: Geological Society of America Bulletin, v. 110, no. 2, p. 211-230, https://doi.org/10.1130/0016-7606(1998)110<0211:SAKEOT>2.3.CO;2.","productDescription":"20 p.","startPage":"211","endPage":"230","numberOfPages":"20","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":231149,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon-Tanana Upland","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -154.248046875,\n              60.88770004207789\n            ],\n            [\n              -141.15234374999997,\n              60.88770004207789\n            ],\n            [\n              -141.15234374999997,\n              66.93006025862448\n            ],\n            [\n              -154.248046875,\n              66.93006025862448\n            ],\n            [\n              -154.248046875,\n              60.88770004207789\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"110","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9bc7e4b08c986b31d0ae","contributors":{"authors":[{"text":"Hansen, V. L.","contributorId":82400,"corporation":false,"usgs":true,"family":"Hansen","given":"V.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":386881,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":777781,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020512,"text":"70020512 - 1998 - Climate variations and changes in mass of three glaciers in western North America","interactions":[],"lastModifiedDate":"2012-03-12T17:20:18","indexId":"70020512","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2216,"text":"Journal of Climate","active":true,"publicationSubtype":{"id":10}},"title":"Climate variations and changes in mass of three glaciers in western North America","docAbstract":"Time series of net and seasonal mass balances for three glaciers in western North America, one in the Pacific Northwest and two in Alaska, show various relationships to Pacific hemisphere climate indexes. During the winter season the two coastal, maritime-regime glaciers, over 2000 km apart, are affected almost identically, albeit inversely, by atmospheric and oceanic conditions in both the tropical and North Pacific. The two Alaska glaciers, only 350 km apart, have almost no coherence. Lag correlations show that in winter the maritime glaciers are influenced by concurrent conditions in the North Pacific, but by conditions in the tropical Pacific in August-September of the prior northern summer. The winter balance variations contain interannual El Nino-Southern Oscillation variability superimposed on North Pacific interdecadal variability; the interdecadal 1976-77 climate regime shift is clearly evident. The summer balances and the continental-regime glacier have a general lack of correlations, with no clear, strong, consistent patterns, probably a result of being influenced more by local processes or by circulation patterns outside the Pacific Ocean basin. The results show the Pacific Northwest is strongly influenced by conditions in the tropical Pacific, but that this teleconnection has broken down in recent years, starting in 1989. During the seven years since then (1989-95), all three glaciers have shown, for the first time, coherent signals, which were net mass loss at the highest rate in the entire record. The authors' results agree with those of other recent studies that suggest these recent years are unusual and may be a signature of climate warming.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Climate","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"08948755","usgsCitation":"Hodge, S.M., Trabant, D., Krimmel, R.M., Heinrichs, T., March, R., and Josberger, E., 1998, Climate variations and changes in mass of three glaciers in western North America: Journal of Climate, v. 11, no. 9, p. 2161-2179.","startPage":"2161","endPage":"2179","numberOfPages":"19","costCenters":[],"links":[{"id":231144,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f656e4b0c8380cd4c6d6","contributors":{"authors":[{"text":"Hodge, S. M.","contributorId":94665,"corporation":false,"usgs":false,"family":"Hodge","given":"S.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":386500,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Trabant, D.C.","contributorId":42209,"corporation":false,"usgs":true,"family":"Trabant","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":386496,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Krimmel, R. M.","contributorId":81093,"corporation":false,"usgs":true,"family":"Krimmel","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":386498,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heinrichs, T.A.","contributorId":88100,"corporation":false,"usgs":true,"family":"Heinrichs","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":386499,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"March, R.S.","contributorId":16431,"corporation":false,"usgs":true,"family":"March","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":386495,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Josberger, E.G.","contributorId":61161,"corporation":false,"usgs":true,"family":"Josberger","given":"E.G.","email":"","affiliations":[],"preferred":false,"id":386497,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70020509,"text":"70020509 - 1998 - Hermit crabs in the diet of Pigeon Guillemots at Kachemak Bay, Alaska","interactions":[],"lastModifiedDate":"2017-02-14T16:27:46","indexId":"70020509","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1272,"text":"Colonial Waterbirds","printIssn":"07386028","active":false,"publicationSubtype":{"id":10}},"title":"Hermit crabs in the diet of Pigeon Guillemots at Kachemak Bay, Alaska","docAbstract":"<p>Guillemots (<i>Cepphus</i> spp.) feed their chicks a diet that is almost exclusively fish. We observed Pigeon Guillemots (<i>C. columba</i>) at two colonies in Alaska where hermit crabs (Crustacea: Anomura) were a major part of the diet for some nestlings. Hermit crabs were delivered to three of five observed nests at one colony, comprised between 2% and 22% of the items delivered at those nests, and were the second most common food type at one nest. Hermit crabs may be an attractive prey item when lipid-rich forage fish are scarce, and crabs living in gastropod shells that have been softened by encrustations of <i>Suberites</i> sponges may be vulnerable to guillemot predation.</p>","language":"English","publisher":"The Waterbird Society","doi":"10.2307/1521913","issn":"07386028","usgsCitation":"Litzow, M.A., Piatt, J.F., and Figurski, J.D., 1998, Hermit crabs in the diet of Pigeon Guillemots at Kachemak Bay, Alaska: Colonial Waterbirds, v. 21, no. 2, p. 242-244, https://doi.org/10.2307/1521913.","productDescription":"3 p.","startPage":"242","endPage":"244","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":231101,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Cook Inlet, Kachemak Bay","volume":"21","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3077e4b0c8380cd5d683","contributors":{"authors":[{"text":"Litzow, Michael A.","contributorId":8789,"corporation":false,"usgs":true,"family":"Litzow","given":"Michael","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":386489,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":386491,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Figurski, Jared D.","contributorId":16307,"corporation":false,"usgs":true,"family":"Figurski","given":"Jared","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":386490,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020463,"text":"70020463 - 1998 - Caribou distribution during the post-calving period in relation to infrastructure in the Prudhoe Bay oil field, Alaska","interactions":[],"lastModifiedDate":"2019-11-10T11:38:13","indexId":"70020463","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":894,"text":"Arctic","active":true,"publicationSubtype":{"id":10}},"title":"Caribou distribution during the post-calving period in relation to infrastructure in the Prudhoe Bay oil field, Alaska","docAbstract":"<p>There is concern that caribou (<i>Rangifer tarandus</i>) may avoid roads and facilities (i.e., infrastructure) in the Prudhoe Bay oil field (PBOF) in northern Alaska, and that this avoidance can have negative effects on the animals. We quantified the relationship between caribou distribution and PBOF infrastructure during the post-calving period (mid-June to mid-August) with aerial surveys from 1990 to 1995. We conducted four to eight surveys per year with complete coverage of the PBOF. We identified active oil field infrastructure and used a geographic information system (GIS) to construct ten 1 km wide concentric intervals surrounding the infrastructure. We tested whether caribou distribution is related to distance from infrastructure with a chi-squared habitat utilization-availability analysis and log-linear regression. We considered bulls, calves, and total caribou of all sex/age classes separately. The habitat utilization-availability analysis indicated there was no consistent trend of attraction to or avoidance of infrastructure. Caribou frequently were more abundant than expected in the intervals close to infrastructure, and this trend was more pronounced for bulls and for total caribou of all sex/age classes than for calves. Log-linear regression (with Poisson error structure) of numbers of caribou and distance from infrastructure were also done, with and without combining data into the 1 km distance intervals. The analysis without intervals revealed no relationship between caribou distribution and distance from oil field infrastructure, or between caribou distribution and Julian date, year, or distance from the Beaufort Sea coast. The log-linear regression with caribou combined into distance intervals showed the density of bulls and total caribou of all sex/age classes declined with distance from infrastructure. Our results indicate that during the post-calving period: 1) caribou distribution is largely unrelated to distance from infrastructure; 2) caribou regularly use habitats in the PBOF; 3) caribou often occur close to infrastructure; and 4) caribou do not appear to avoid oil field infrastructure.</p>","language":"English","publisher":"Arctic Institute of North America","publisherLocation":"Calgary, AB","doi":"10.14430/arctic1050","issn":"00040843","usgsCitation":"Cronin, M.A., Amstrup, S.C., Durner, G.M., Noel, L.E., McDonald, T.L., and Ballard, W.B., 1998, Caribou distribution during the post-calving period in relation to infrastructure in the Prudhoe Bay oil field, Alaska: Arctic, v. 51, no. 2, p. 85-93, https://doi.org/10.14430/arctic1050.","productDescription":"9 p.","startPage":"85","endPage":"93","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":479851,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14430/arctic1050","text":"Publisher Index Page"},{"id":231060,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Prudhoe Bay Oil Field","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -148.96362304687497,\n              69.93406993820341\n            ],\n            [\n              -147.227783203125,\n              69.93406993820341\n            ],\n            [\n              -147.227783203125,\n              70.63448406630856\n            ],\n            [\n              -148.96362304687497,\n              70.63448406630856\n            ],\n            [\n              -148.96362304687497,\n              69.93406993820341\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"51","issue":"2","noUsgsAuthors":false,"publicationDate":"1998-01-01","publicationStatus":"PW","scienceBaseUri":"5059f37ce4b0c8380cd4b837","contributors":{"authors":[{"text":"Cronin, Matthew A.","contributorId":57307,"corporation":false,"usgs":false,"family":"Cronin","given":"Matthew","email":"","middleInitial":"A.","affiliations":[{"id":7211,"text":"University of Alaska, Fairbanks","active":true,"usgs":false},{"id":28157,"text":"LGL Alaska Research Associates, Anchorage, AK","active":true,"usgs":false}],"preferred":false,"id":386309,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Amstrup, Steven C.","contributorId":67034,"corporation":false,"usgs":false,"family":"Amstrup","given":"Steven","email":"","middleInitial":"C.","affiliations":[{"id":13182,"text":"Polar Bears International","active":true,"usgs":false}],"preferred":false,"id":386308,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Durner, George M. 0000-0002-3370-1191 gdurner@usgs.gov","orcid":"https://orcid.org/0000-0002-3370-1191","contributorId":3576,"corporation":false,"usgs":true,"family":"Durner","given":"George","email":"gdurner@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":386307,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Noel, Lynn E.","contributorId":179096,"corporation":false,"usgs":false,"family":"Noel","given":"Lynn","email":"","middleInitial":"E.","affiliations":[{"id":28157,"text":"LGL Alaska Research Associates, Anchorage, AK","active":true,"usgs":false}],"preferred":false,"id":386306,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McDonald, Trent L.","contributorId":92193,"corporation":false,"usgs":false,"family":"McDonald","given":"Trent","email":"","middleInitial":"L.","affiliations":[{"id":6660,"text":"Western EcoSystems Technology, Inc","active":true,"usgs":false}],"preferred":false,"id":386310,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ballard, Warren B.","contributorId":172887,"corporation":false,"usgs":false,"family":"Ballard","given":"Warren","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":386311,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70020396,"text":"70020396 - 1998 - Estimating survival rates with age-structure data","interactions":[],"lastModifiedDate":"2017-06-28T16:43:43","indexId":"70020396","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Estimating survival rates with age-structure data","docAbstract":"<p><span>We developed a general statistical model that provides a comprehensive framework for inference about survival rates based on standing age-structure and ages-at-death data. Previously available estimators are maximum likelihood under the general model, but they use only 1 type of data and require the assumption of a stable age structure and a known population growth rate. We used the general model to derive new survival rate estimators that use both types of data and require only the assumption of a stable age structure or a known population growth rate. Our likelihood-based approach allows use of standard model-selection procedures to test hypotheses about age-structure stability, population growth rates, and age-related patterns in survival. We used this approach to estimate survival rates for female sea otters (<i>Enhydra lutris</i>) in Prince William Sound, Alaska.</span></p>","language":"English","publisher":"Wiley","doi":"10.2307/3802355","issn":"0022541X","usgsCitation":"Udevitz, M.S., and Ballachey, B.E., 1998, Estimating survival rates with age-structure data: Journal of Wildlife Management, v. 62, no. 2, p. 779-792, https://doi.org/10.2307/3802355.","productDescription":"14 p.","startPage":"779","endPage":"792","costCenters":[],"links":[{"id":231296,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"62","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0b4fe4b0c8380cd52681","contributors":{"authors":[{"text":"Udevitz, Mark S. 0000-0003-4659-138X mudevitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4659-138X","contributorId":3189,"corporation":false,"usgs":true,"family":"Udevitz","given":"Mark","email":"mudevitz@usgs.gov","middleInitial":"S.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":386086,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ballachey, Brenda E. 0000-0003-1855-9171 bballachey@usgs.gov","orcid":"https://orcid.org/0000-0003-1855-9171","contributorId":2966,"corporation":false,"usgs":true,"family":"Ballachey","given":"Brenda","email":"bballachey@usgs.gov","middleInitial":"E.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":386085,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020327,"text":"70020327 - 1998 - Seabirds of the Chukotka Peninsula, Russia","interactions":[],"lastModifiedDate":"2023-08-14T15:08:17.376149","indexId":"70020327","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":894,"text":"Arctic","active":true,"publicationSubtype":{"id":10}},"title":"Seabirds of the Chukotka Peninsula, Russia","docAbstract":"<p><span>We conducted seabird surveys along the entire coast of the Chukotka Peninsula (northwestern Siberia, Russia) from 1983 to 1991. We present the first comprehensive descriptions of the distribution and size of Chukotkan seabird colonies. Thirteen species of seabirds were recorded breeding on the peninsula, with an additional 13 migrant or vagrant species. Our estimate that at least 3 300 000 seabirds breed on the Chukotka Peninsula demonstrates the importance of this region to arctic seabird populations. Colony size and species composition may be determined by availability of adequate breeding sites, access to foraging areas, and variable ice conditions.</span></p>","language":"English","publisher":"Arctic Institute of North America","doi":"10.14430/arctic1074","usgsCitation":"Konyukhov, N.B., Bogoslovskaya, L.S., Zvonov, B.M., and van Pelt, T.I., 1998, Seabirds of the Chukotka Peninsula, Russia: Arctic, v. 51, no. 4, p. 315-329, https://doi.org/10.14430/arctic1074.","productDescription":"15 p.","startPage":"315","endPage":"329","numberOfPages":"15","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":489065,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14430/arctic1074","text":"Publisher Index Page"},{"id":231439,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Russia","otherGeospatial":"Chukotka Peninsula","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -169.27789505468544,\n              67.63179401986869\n            ],\n            [\n              -175.44860104892172,\n              67.79557573179753\n            ],\n            [\n              -175.33632527259033,\n              64.02845584396925\n            ],\n            [\n              -169.02625139339992,\n              64.02845584396925\n            ],\n            [\n              -169.27789505468544,\n              67.63179401986869\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"51","issue":"4","noUsgsAuthors":false,"publicationDate":"1998-01-01","publicationStatus":"PW","scienceBaseUri":"505b8826e4b08c986b316813","contributors":{"authors":[{"text":"Konyukhov, N. B.","contributorId":78505,"corporation":false,"usgs":false,"family":"Konyukhov","given":"N.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":385841,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bogoslovskaya, L. S.","contributorId":8638,"corporation":false,"usgs":false,"family":"Bogoslovskaya","given":"L.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":385838,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zvonov, B. M.","contributorId":19331,"corporation":false,"usgs":false,"family":"Zvonov","given":"B.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":385840,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"van Pelt, Thomas I.","contributorId":13392,"corporation":false,"usgs":true,"family":"van Pelt","given":"Thomas","email":"","middleInitial":"I.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":false,"id":385839,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020215,"text":"70020215 - 1998 - Routes and travel rates of migrating Peregrine Falcons Falco peregrinus and Swainson's Hawks Buteo swainsoni in the Western Hemisphere","interactions":[],"lastModifiedDate":"2021-03-16T21:00:02.657517","indexId":"70020215","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2190,"text":"Journal of Avian Biology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Routes and travel rates of migrating Peregrine Falcons <i>Falco peregrinus</i> and Swainson's Hawks <i>Buteo swainsoni</i> in the Western Hemisphere","title":"Routes and travel rates of migrating Peregrine Falcons Falco peregrinus and Swainson's Hawks Buteo swainsoni in the Western Hemisphere","docAbstract":"<p>We describe and compare the migration routes, length of migration, and duration of migration of Peregrine Falcons <i>Falco peregrinus tundrius</i> and Swainson's Hawks <i>Buteo swainsoni</i> in the Western Hemisphere. We radio tracked migrants using the Argos satellite system. Our initial samples were 34 Swainson's Hawks from representative areas of their breeding range, and 61 Peregrine Falcons captured at nest sites across the North American boreal forest and low Arctic or on the migration routes along the mid-Atlantic and Gulf of Mexico coasts. The average distance of migration for Peregrines was 8,624 km southward, and 8,247 km northward. Peregrines travelled at an average rate of 172 km/d southward and 198 km/d going north. Peregrine Falcons used at least three broad, general routes south from the breeding areas, and individuals stopped migrating as far north as the U.S.A. mid-Atlantic coast and as far south as central Argentina. The radiomarked Peregrine Falcons used coastal routes, mid-continental routes, and water-crossing routes: the Davis Strait and Caribbean Sea. During northward migration, Peregrines migrating through at Padre Island, Texas diverged for destinations from central Alaska across the continent to central West Greenland. Swainson's Hawks migrated an average of about 13,504 km southward and 11,952 km northward, and travelled 188 km/d southward and 150 km/d northward. Swainson's Hawks converged in eastern Mexico on the Gulf of Mexico coast. Southward, these hawks followed a narrow, well-defined path through Central America, across the Andes Mountains in Columbia, and east of the Andes to central Argentina where they all spent the austral summer. Swainson's Hawks northward migration largely retraced their southward route.</p>","language":"English","publisher":"Wiley","doi":"10.2307/3677162","usgsCitation":"Fuller, M.R., Seegar, W.S., and Schueck, L., 1998, Routes and travel rates of migrating Peregrine Falcons Falco peregrinus and Swainson's Hawks Buteo swainsoni in the Western Hemisphere: Journal of Avian Biology, v. 29, no. 4, p. 433-440, https://doi.org/10.2307/3677162.","productDescription":"8 p.","startPage":"433","endPage":"440","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":231085,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaea8e4b0c8380cd8715f","contributors":{"authors":[{"text":"Fuller, Mark R. 0000-0001-7459-1729 mark_fuller@usgs.gov","orcid":"https://orcid.org/0000-0001-7459-1729","contributorId":2296,"corporation":false,"usgs":true,"family":"Fuller","given":"Mark","email":"mark_fuller@usgs.gov","middleInitial":"R.","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":385418,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Seegar, William S.","contributorId":97013,"corporation":false,"usgs":true,"family":"Seegar","given":"William","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":385417,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schueck, Linda S. 0000-0003-0456-1131 lschueck@usgs.gov","orcid":"https://orcid.org/0000-0003-0456-1131","contributorId":48516,"corporation":false,"usgs":true,"family":"Schueck","given":"Linda S.","email":"lschueck@usgs.gov","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":false,"id":385419,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020122,"text":"70020122 - 1998 - DNA and allozyme markers provide concordant estimates of population differentiation: Analyses of U.S. and Canadian populations of Yukon River fall-run chum salmon (<i>Oncorhynchus keta</i>)","interactions":[],"lastModifiedDate":"2017-02-14T13:20:12","indexId":"70020122","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"DNA and allozyme markers provide concordant estimates of population differentiation: Analyses of U.S. and Canadian populations of Yukon River fall-run chum salmon (<i>Oncorhynchus keta</i>)","docAbstract":"<p><span>Although the number of genetic markers available for fisheries research has steadily increased in recent years, there is limited information on their relative utility. In this study, we compared the performance&nbsp;of different \"classes\" of genetic markers (mitochondrial DNA (mtDNA), nuclear DNA (nDNA), and allozymes) in terms of estimating levels and partitioning of genetic variation and of the relative accuracy and precision in estimating population allocations to mixed-stock fisheries. Individuals from eight populations of fall-run chum salmon (</span><i>Oncorhynchus keta</i><span>) from the Yukon River in Alaska and Canada were assayed at 25 loci. Significant differences in mitochondrial haplotype and nuclear allele frequencies were observed among five drainages. Populations from the U.S.-Canada border region were not clearly distinguishable based on multilocus allele frequencies. Although estimates of total genetic diversities were higher for the DNA loci (</span><i>H</i><sub>t</sub><span> = 0.592 and </span><i>h</i><span> = 0.647 for nDNA and mtDNA, respectively) compared with protein allozymes (</span><i>H</i><sub>t</sub><span> = 0.250), estimates of the extent of population differentiation were highly concordant across marker classes (mean theta = 0.010, 0.011, and 0.016 for allozymes, nDNA, and mtDNA, respectively). Simulations of mixed-stock fisheries composed of varying contributions of U.S. and Canadian populations revealed a consistent bias for overallocation of Canadian stocks when expected Canadian contributions varied from 0 to 40%, due primarily to misallocations among genetically similar border populations. No single marker class is superior for differentiating populations of this species at the spatial scale examined.</span></p>","language":"English","publisher":"NRS Research Press","doi":"10.1139/f98-063","issn":"0706652X","usgsCitation":"Scribner, K.T., Crane, P.A., Spearman, W., and Seeb, L.W., 1998, DNA and allozyme markers provide concordant estimates of population differentiation: Analyses of U.S. and Canadian populations of Yukon River fall-run chum salmon (<i>Oncorhynchus keta</i>): Canadian Journal of Fisheries and Aquatic Sciences, v. 55, no. 7, p. 1748-1758, https://doi.org/10.1139/f98-063.","productDescription":"11 p.","startPage":"1748","endPage":"1758","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":227750,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","otherGeospatial":"Yukon River","volume":"55","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fd4de4b0c8380cd4e763","contributors":{"authors":[{"text":"Scribner, Kim T.","contributorId":146113,"corporation":false,"usgs":false,"family":"Scribner","given":"Kim","email":"","middleInitial":"T.","affiliations":[{"id":16582,"text":"Department of Fisheries and Wildlife and Department of Zoology, 480 Wilson Rd. 13 Natural Resources Building, Michigan State University, East Lansing, MI 48824","active":true,"usgs":false},{"id":135,"text":"Biological Resources Division","active":false,"usgs":true}],"preferred":false,"id":385119,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Crane, Penelope A.","contributorId":40743,"corporation":false,"usgs":false,"family":"Crane","given":"Penelope","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":385117,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Spearman, William J.","contributorId":28560,"corporation":false,"usgs":false,"family":"Spearman","given":"William J.","affiliations":[],"preferred":false,"id":385116,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Seeb, Lisa W.","contributorId":66008,"corporation":false,"usgs":false,"family":"Seeb","given":"Lisa","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":385118,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70019734,"text":"70019734 - 1998 - Synthetic aperture radar interferometry coherence analysis over Katmai volcano group, Alaska","interactions":[],"lastModifiedDate":"2017-04-07T15:10:14","indexId":"70019734","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Synthetic aperture radar interferometry coherence analysis over Katmai volcano group, Alaska","docAbstract":"<p><span>The feasibility of measuring volcanic deformation or monitoring deformation of active volcanoes using space-borne synthetic aperture radar (SAR) interferometry depends on the ability to maintain phase coherence over appropriate time intervals. Using ERS 1 C band (λ=5.66 cm) SAR imagery, we studied the seasonal and temporal changes of the interferometric SAR coherence for fresh lava, weathered lava, tephra with weak water reworking, tephra with strong water reworking, and fluvial deposits representing the range of typical volcanic surface materials in the Katmai volcano group, Alaska. For interferograms based on two passes with 35 days separation taken during the same summer season, we found that coherence increases after early June, reaches a peak between the middle of July and the middle of September, and finally decreases until the middle of November when coherence is completely lost for all five sites. Fresh lava has the highest coherence, followed by either weathered lava or fluvial deposits. These surfaces maintain relatively high levels of coherence for periods up to the length of the summer season. Coherence degrades more rapidly with time for surfaces covered with tephra. For images taken in different summers, only the lavas maintained coherence well enough to provide useful interferometric images, but we found only a small reduction in coherence after the first year for surfaces with lava. Measurement of volcanic deformation is possible using summer images spaced a few years apart, as long as the surface is dominated by lavas. Our studies suggest that in order to make volcanic monitoring feasible along the Aleutian arc or other regions with similar climatic conditions, observation intervals of the satellite with C band SAR should be at least every month from July through September, every week during the late spring/early summer or late fall, and every 2–3 days during the winter.</span></p>","language":"English","publisher":"AGU","doi":"10.1029/98JB02410","issn":"01480227","usgsCitation":"Lu, Z., and Freymueller, J., 1998, Synthetic aperture radar interferometry coherence analysis over Katmai volcano group, Alaska: Journal of Geophysical Research B: Solid Earth, v. 103, no. B12, p. 29887-29894, https://doi.org/10.1029/98JB02410.","productDescription":"8 p.","startPage":"29887","endPage":"29894","numberOfPages":"8","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":227885,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"103","issue":"B12","noUsgsAuthors":false,"publicationDate":"1998-12-10","publicationStatus":"PW","scienceBaseUri":"505ba35ce4b08c986b31fc90","contributors":{"authors":[{"text":"Lu, Z.","contributorId":106241,"corporation":false,"usgs":true,"family":"Lu","given":"Z.","affiliations":[],"preferred":false,"id":383741,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Freymueller, J.T.","contributorId":51482,"corporation":false,"usgs":true,"family":"Freymueller","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":383740,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020440,"text":"70020440 - 1998 - A model of northern pintail productivity and population growth rate","interactions":[],"lastModifiedDate":"2017-03-06T17:30:35","indexId":"70020440","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"A model of northern pintail productivity and population growth rate","docAbstract":"<p><span>Our objective was to synthesize individual components of reproductive ecology into a single estimate of productivity and to assess the relative effects of survival and productivity on population dynamics. We used information on nesting ecology, renesting potential, and duckling survival of northern pintails (<i>Anas acuta</i>) collected on the Yukon-Kuskokwim Delta (Y-K Delta), Alaska, 1991-95, to model the number of ducklings produced under a range of nest success and duckling survival probabilities. Using average values of 25% nest success, 11% duckling survival, and 56% renesting probability from our study population, we calculated that all young in our population were produced by 13% of the breeding females, and that early-nesting females produced more young than later-nesting females. Further, we calculated, on average, that each female produced only 0.16 young females/nesting season. We combined these results with estimates of first-year and adult survival to examine the growth rate (X) of the population and the relative contributions of these demographic parameters to that growth rate. Contrary to aerial survey data, the population projection model suggests our study population is declining rapidly (X = 0.6969). The relative effects on population growth rate were 0.1175 for reproductive success, 0.1175 for first-year survival, and 0.8825 for adult survival. Adult survival had the greatest influence on X for our population, and this conclusion was robust over a range of survival and productivity estimates. Given published estimates of annual survival for adult females (61%), our model suggested nest success and duckling survival need to increase to approximately 40% to achieve population stability. We discuss reasons for the apparent discrepancy in population trends between our model and aerial surveys in terms of bias in productivity and survival estimates.</span></p>","language":"English","publisher":"Wiley","doi":"10.2307/3802565","issn":"0022541X","usgsCitation":"Flint, P.L., Grand, J.B., and Rockwell, R.F., 1998, A model of northern pintail productivity and population growth rate: Journal of Wildlife Management, v. 62, no. 3, p. 1110-1118, https://doi.org/10.2307/3802565.","productDescription":"9 p.","startPage":"1110","endPage":"1118","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":231333,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon-Kuskokwim Delta","volume":"62","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e480e4b0c8380cd46687","contributors":{"authors":[{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@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":386225,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grand, J. Barry 0000-0002-3576-4567 barry_grand@usgs.gov","orcid":"https://orcid.org/0000-0002-3576-4567","contributorId":579,"corporation":false,"usgs":true,"family":"Grand","given":"J.","email":"barry_grand@usgs.gov","middleInitial":"Barry","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":386223,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rockwell, Robert F.","contributorId":172752,"corporation":false,"usgs":false,"family":"Rockwell","given":"Robert","email":"","middleInitial":"F.","affiliations":[{"id":6989,"text":"American Museum of Natural History","active":true,"usgs":false}],"preferred":false,"id":386224,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1012931,"text":"1012931 - 1998 - Estimates of brown bear abundance on Kodiak Island, Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:04:06","indexId":"1012931","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3671,"text":"Ursus","active":true,"publicationSubtype":{"id":10}},"title":"Estimates of brown bear abundance on Kodiak Island, Alaska","docAbstract":"During 1987-94 we used capture-mark-resight (CMR) methodology and\r\nrates of observation (bears/hour and bears/100 km2) of unmarked brown bears\r\n(Ursus arctos middendorffi) during intensive aerial surveys (IAS) to estimate\r\nabundance of brown bears on Kodiak Island and to establish a baseline for\r\nmonitoring population trends. CMR estimates were obtained on 3 study areas;\r\ndensity ranged from 216-234 bears/1,000 km2 for independent animals and 292-342\r\nbears/1,000 km2 including dependent offspring. Rates of observation during IAS\r\nranged from 1.4-5.4 independent bears/hour and 2.9-18.0 independent bears/100\r\nkm2. Density estimates for independent bears on each IAS area were obtained by\r\ndividing mean number of bears observed during replicate surveys by estimated\r\nsightability (based on CMR-derived sightability in areas with similar habitat. \r\nBrown bear abundance on 21 geographic units of Kodiak Island and 3 nearby\r\nislands was estimated by extrapolation from CMR and IAS data using comparisons\r\nof habitat characteristics and sport harvest information. Population estimates\r\nfor independent and total bears were 1,800 and 2,600. The CMR and IAS\r\nprocedures offer alternative means, depending on management objective and\r\navailable resources, of measuring population trend of brown bears on Kodiak\r\nIsland.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ursus","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Barnes, V., and Smith, R.B., 1998, Estimates of brown bear abundance on Kodiak Island, Alaska: Ursus, v. 10, p. 1-9.","productDescription":"pp. 1-9","startPage":"1","endPage":"9","numberOfPages":"9","costCenters":[{"id":106,"text":"Alaska Biological Science Center","active":false,"usgs":true}],"links":[{"id":128558,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a01e4b07f02db5f7f16","contributors":{"authors":[{"text":"Barnes, V.G. Jr.","contributorId":55765,"corporation":false,"usgs":true,"family":"Barnes","given":"V.G.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":318442,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, R. B.","contributorId":64589,"corporation":false,"usgs":true,"family":"Smith","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":318443,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020204,"text":"70020204 - 1998 - Birds of the Indigirka River Delta, Russia: Historical and biogeographic comparisons","interactions":[],"lastModifiedDate":"2018-07-14T14:04:11","indexId":"70020204","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":894,"text":"Arctic","active":true,"publicationSubtype":{"id":10}},"title":"Birds of the Indigirka River Delta, Russia: Historical and biogeographic comparisons","docAbstract":"<p>We documented the breeding status and relative abundance of all avian species on the coastal portion of the Indigirka River Delta during spring and summer 1993-95. Data on avifaunal composition were then compared to data from adjacent areas from Eastern Siberia to the Chukotka Peninsula to evaluate how species composition changes longitudinally within the arctic and typical tundra zones of northern Russia. We recorded 63 species on the Indigirka River Delta, 37 (58.7 %) of which were confirmed breeders during at least one of the three years. Five new species were recorded breeding (<i>Arenaria interpres</i>, <i>Calidris</i> <i>acuminata</i>, <i>Limnodromus scolopaceus</i>, <i>Stercorarius parasiticus</i>, and <i>Asio flammeus</i>), and 13 previously unrecorded species were observed during this study. We also identified several species of rare or threatened status in Russia and North America, including <i>Branta bernicla</i>, <i>Somateria fischeri</i>, <i>Polysticta</i> <i>stelleri</i>, and <i>Rhodostethia rosea</i>. We used parsimony and distance matrix methods to compare the breeding species richness on the Indigirka River Delta to that of six other Russian Arctic areas. Biogeographic comparisons revealed the presence of two clades in the Russian Arctic: the Lena River Delta east to Chaun Delta and the Chukotka Peninsula.</p>","language":"English","publisher":"Arctic Institute of North America","publisherLocation":"Calgary, AB","doi":"10.14430/arctic1079","issn":"00040843","usgsCitation":"Pearce, J.M., Esler, D., and Degtyarev, A.G., 1998, Birds of the Indigirka River Delta, Russia: Historical and biogeographic comparisons: Arctic, v. 51, no. 4, p. 361-370, https://doi.org/10.14430/arctic1079.","productDescription":"10 p.","startPage":"361","endPage":"370","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":479798,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14430/arctic1079","text":"Publisher Index Page"},{"id":230928,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Russia","otherGeospatial":"Indigirka River Delta","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              150.128173828125,\n              71.18509668267065\n            ],\n            [\n              150.128173828125,\n              71.52229774676012\n            ],\n            [\n              151.3092041015625,\n              71.52229774676012\n            ],\n            [\n              151.3092041015625,\n              71.18509668267065\n            ],\n            [\n              150.128173828125,\n              71.18509668267065\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"51","issue":"4","noUsgsAuthors":false,"publicationDate":"1998-01-01","publicationStatus":"PW","scienceBaseUri":"5059f1c5e4b0c8380cd4ae02","contributors":{"authors":[{"text":"Pearce, John M. 0000-0002-8503-5485 jpearce@usgs.gov","orcid":"https://orcid.org/0000-0002-8503-5485","contributorId":181766,"corporation":false,"usgs":true,"family":"Pearce","given":"John","email":"jpearce@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":385384,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Esler, Daniel 0000-0001-5501-4555 desler@usgs.gov","orcid":"https://orcid.org/0000-0001-5501-4555","contributorId":5465,"corporation":false,"usgs":true,"family":"Esler","given":"Daniel","email":"desler@usgs.gov","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":12437,"text":"Simon Fraser University, Centre for Wildlife Ecology","active":true,"usgs":false},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":385382,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Degtyarev, Andrei G.","contributorId":13775,"corporation":false,"usgs":false,"family":"Degtyarev","given":"Andrei","email":"","middleInitial":"G.","affiliations":[{"id":28156,"text":"Yakutsk Institute of Biology, Yakutsk, Russia","active":true,"usgs":false}],"preferred":false,"id":385383,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70184292,"text":"70184292 - 1998 - Grizzly bears and calving caribou: What is the relation with river corridors?","interactions":[],"lastModifiedDate":"2018-01-19T16:15:58","indexId":"70184292","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Grizzly bears and calving caribou: What is the relation with river corridors?","docAbstract":"<p><span>Researchers have debated the effect of the Trans-Alaska Pipeline (TAP) and associated developments to caribou (<i>Rangifer tarandus</i>) of the central Arctic herd (CAH) since the 1970s. Several studies have demonstrated that cows and calves of the CAH avoided the TAP corridor because of disturbance associated with the pipeline, whereas others have indicated that female caribou of the CAH avoided riparian habitats closely associated with the pipeline. This avoidance was explained as a predator-avoidance strategy. We investigated the relation between female caribou and grizzly bear (<i>Ursus arctos</i>) use of river corridors on the yet undisturbed calving grounds of the Porcupine caribou herd (PCH) in northeastern Alaska. On the coastal plain, caribou were closer to river corridors than expected (P = 0.038), but bear use of river corridors did not differ from expected (P = 0.740). In the foothills, caribou use of river corridors did not differ from expected (P = 0.520), but bears were farther from rivers than expected (P = 0.001). Our results did not suggest an avoidance of river corridors by calving caribou or a propensity for bears to be associated with riparian habitats, presumably for stalking or ambush cover. We propose that PCH caribou reduce the risks of predation to neonates by migrating to a common calving grounds, where predator swamping is the operational antipredator strategy. Consequently, we hypothesize that nutritional demands, not predator avoidance strategies, ultimately regulate habitat use patterns (e.g., use of river corridors) of calving PCH caribou.</span></p>","language":"English","publisher":"Wiley","doi":"10.2307/3802286","usgsCitation":"Young, D.D., and McCabe, T.R., 1998, Grizzly bears and calving caribou: What is the relation with river corridors?: Journal of Wildlife Management, v. 62, no. 1, p. 255-261, https://doi.org/10.2307/3802286.","productDescription":"7 p.","startPage":"255","endPage":"261","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":336912,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Arctic National Wildlife Refuge","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -145.04150390625,\n              69.09013935122702\n            ],\n            [\n              -141.0040283203125,\n              69.09013935122702\n            ],\n            [\n              -141.0040283203125,\n              70.21301516830974\n            ],\n            [\n              -145.04150390625,\n              70.21301516830974\n            ],\n            [\n              -145.04150390625,\n              69.09013935122702\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"62","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58be833ee4b014cc3a3a9a0b","contributors":{"authors":[{"text":"Young, Donald D. Jr.","contributorId":57219,"corporation":false,"usgs":true,"family":"Young","given":"Donald","suffix":"Jr.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":680882,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McCabe, Thomas R.","contributorId":91255,"corporation":false,"usgs":true,"family":"McCabe","given":"Thomas","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":680883,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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