Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans)
Abstract We used capture–recapture methods to estimate adult survival rates for adult female Black Brant (Branta bernicla nigricans; hereafter “brant”) from three colonies in Alaska, two on the Yukon-Kuskokwim Delta, and one on Alaska's Arctic coast. Costs of migration and reproductive effort v...
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Oxford University Press (OUP)
2002
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Online Access: | http://dx.doi.org/10.1093/auk/119.2.510 http://academic.oup.com/auk/article-pdf/119/2/510/29685711/auk0510.pdf |
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croxfordunivpr:10.1093/auk/119.2.510 2023-11-12T04:11:48+01:00 Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans) Sedinger, James S. Chelgren, Nathan D. Lindberg, Mark S. Obritchkewitch, Tim Kirk, Morgan T. Martin, Philip Anderson, Betty A. Ward, David H. Smith, L. 2002 http://dx.doi.org/10.1093/auk/119.2.510 http://academic.oup.com/auk/article-pdf/119/2/510/29685711/auk0510.pdf en eng Oxford University Press (OUP) The Auk volume 119, issue 2, page 510-515 ISSN 1938-4254 0004-8038 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2002 croxfordunivpr https://doi.org/10.1093/auk/119.2.510 2023-10-13T10:56:01Z Abstract We used capture–recapture methods to estimate adult survival rates for adult female Black Brant (Branta bernicla nigricans; hereafter “brant”) from three colonies in Alaska, two on the Yukon-Kuskokwim Delta, and one on Alaska's Arctic coast. Costs of migration and reproductive effort varied among those colonies, enabling us to examine variation in survival in relation to variation in these other variables. We used the Barker model in program MARK to estimate true annual survival for brant from the three colonies. Models allowing for spatial variation in survival were among the most parsimonious models but were indistinguishable from a model with no spatial variation. Point estimates of annual survival were slightly higher for brant from the Arctic (0.90 ± 0.036) than for brant from either Tutakoke River (0.85 ± 0.004) or Kokechik Bay (0.86 ± 0.011). Thus, our survival estimates do not support a hypothesis that the cost of longer migrations or harvest experienced by brant from the Arctic reduced their annual survival relative to brant from the Yukon-Kuskokwim Delta. Spatial variation in survival provides weak support for life-history theory because brant from the region with lower reproductive investment had slightly higher survival. Article in Journal/Newspaper Arctic Branta bernicla Kuskokwim Alaska Yukon Oxford University Press (via Crossref) Arctic Yukon Brant ENVELOPE(7.105,7.105,62.917,62.917) The Auk 119 2 510 515 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Sedinger, James S. Chelgren, Nathan D. Lindberg, Mark S. Obritchkewitch, Tim Kirk, Morgan T. Martin, Philip Anderson, Betty A. Ward, David H. Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans) |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract We used capture–recapture methods to estimate adult survival rates for adult female Black Brant (Branta bernicla nigricans; hereafter “brant”) from three colonies in Alaska, two on the Yukon-Kuskokwim Delta, and one on Alaska's Arctic coast. Costs of migration and reproductive effort varied among those colonies, enabling us to examine variation in survival in relation to variation in these other variables. We used the Barker model in program MARK to estimate true annual survival for brant from the three colonies. Models allowing for spatial variation in survival were among the most parsimonious models but were indistinguishable from a model with no spatial variation. Point estimates of annual survival were slightly higher for brant from the Arctic (0.90 ± 0.036) than for brant from either Tutakoke River (0.85 ± 0.004) or Kokechik Bay (0.86 ± 0.011). Thus, our survival estimates do not support a hypothesis that the cost of longer migrations or harvest experienced by brant from the Arctic reduced their annual survival relative to brant from the Yukon-Kuskokwim Delta. Spatial variation in survival provides weak support for life-history theory because brant from the region with lower reproductive investment had slightly higher survival. |
author2 |
Smith, L. |
format |
Article in Journal/Newspaper |
author |
Sedinger, James S. Chelgren, Nathan D. Lindberg, Mark S. Obritchkewitch, Tim Kirk, Morgan T. Martin, Philip Anderson, Betty A. Ward, David H. |
author_facet |
Sedinger, James S. Chelgren, Nathan D. Lindberg, Mark S. Obritchkewitch, Tim Kirk, Morgan T. Martin, Philip Anderson, Betty A. Ward, David H. |
author_sort |
Sedinger, James S. |
title |
Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans) |
title_short |
Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans) |
title_full |
Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans) |
title_fullStr |
Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans) |
title_full_unstemmed |
Life-History Implications of Large-Scale Spatial Variation in Adult Survival of Black Brant (Branta Bernicla Nigricans) |
title_sort |
life-history implications of large-scale spatial variation in adult survival of black brant (branta bernicla nigricans) |
publisher |
Oxford University Press (OUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1093/auk/119.2.510 http://academic.oup.com/auk/article-pdf/119/2/510/29685711/auk0510.pdf |
long_lat |
ENVELOPE(7.105,7.105,62.917,62.917) |
geographic |
Arctic Yukon Brant |
geographic_facet |
Arctic Yukon Brant |
genre |
Arctic Branta bernicla Kuskokwim Alaska Yukon |
genre_facet |
Arctic Branta bernicla Kuskokwim Alaska Yukon |
op_source |
The Auk volume 119, issue 2, page 510-515 ISSN 1938-4254 0004-8038 |
op_doi |
https://doi.org/10.1093/auk/119.2.510 |
container_title |
The Auk |
container_volume |
119 |
container_issue |
2 |
container_start_page |
510 |
op_container_end_page |
515 |
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1782330705277091840 |