Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska
ABSTRACT Populations of Pacific common eiders ( Somateria mollissima v‐nigrum ) breeding in Alaska, USA, have declined markedly over the past 40 years. We studied survival of adult female Pacific common eiders using capture—recapture of nesting hens at 3 sites on the Yukon‐Kuskokwim Delta (YKD), Ala...
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crwiley:10.2193/2005-776 2024-04-07T07:53:52+00:00 Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska WILSON, HEATHER M. FLINT, PAUL L. MORAN, CHRISTINE L. POWELL, ABBY N. 2007 http://dx.doi.org/10.2193/2005-776 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2193%2F2005-776 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Journal of Wildlife Management volume 71, issue 2, page 403-410 ISSN 0022-541X 1937-2817 Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics journal-article 2007 crwiley https://doi.org/10.2193/2005-776 2024-03-14T00:41:41Z ABSTRACT Populations of Pacific common eiders ( Somateria mollissima v‐nigrum ) breeding in Alaska, USA, have declined markedly over the past 40 years. We studied survival of adult female Pacific common eiders using capture—recapture of nesting hens at 3 sites on the Yukon‐Kuskokwim Delta (YKD), Alaska from 1994 to 2004. We used data consisting of 268 recapture events from 361 uniquely marked individuals to investigate temporal, geographic, and environmental variation in adult female survival. Our results suggest apparent annual survival of adult eiders from the YKD was high (0.892, SE = 0.022) and spatially and temporally invariant (σ 2 = 0.005), a pattern consistent with other long‐lived marine birds. Moreover, our results suggest adult survival may be functionally fixed for Pacific common eiders, and at the present, adult survival may be relatively unresponsive to environmental or management perturbations. Our data did not support hypothesized variation in survival relative to mortality factors such as predation on breeding grounds, physiologic costs of reproduction, and wintering conditions. Although changes in adult survival likely have a large potential effect on prospective population growth, our results suggest viable management actions aimed at increasing survival may be extremely limited. Article in Journal/Newspaper Kuskokwim Somateria mollissima Alaska Yukon Wiley Online Library Pacific Yukon Journal of Wildlife Management 71 2 403 410 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics WILSON, HEATHER M. FLINT, PAUL L. MORAN, CHRISTINE L. POWELL, ABBY N. Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska |
topic_facet |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics |
description |
ABSTRACT Populations of Pacific common eiders ( Somateria mollissima v‐nigrum ) breeding in Alaska, USA, have declined markedly over the past 40 years. We studied survival of adult female Pacific common eiders using capture—recapture of nesting hens at 3 sites on the Yukon‐Kuskokwim Delta (YKD), Alaska from 1994 to 2004. We used data consisting of 268 recapture events from 361 uniquely marked individuals to investigate temporal, geographic, and environmental variation in adult female survival. Our results suggest apparent annual survival of adult eiders from the YKD was high (0.892, SE = 0.022) and spatially and temporally invariant (σ 2 = 0.005), a pattern consistent with other long‐lived marine birds. Moreover, our results suggest adult survival may be functionally fixed for Pacific common eiders, and at the present, adult survival may be relatively unresponsive to environmental or management perturbations. Our data did not support hypothesized variation in survival relative to mortality factors such as predation on breeding grounds, physiologic costs of reproduction, and wintering conditions. Although changes in adult survival likely have a large potential effect on prospective population growth, our results suggest viable management actions aimed at increasing survival may be extremely limited. |
format |
Article in Journal/Newspaper |
author |
WILSON, HEATHER M. FLINT, PAUL L. MORAN, CHRISTINE L. POWELL, ABBY N. |
author_facet |
WILSON, HEATHER M. FLINT, PAUL L. MORAN, CHRISTINE L. POWELL, ABBY N. |
author_sort |
WILSON, HEATHER M. |
title |
Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska |
title_short |
Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska |
title_full |
Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska |
title_fullStr |
Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska |
title_full_unstemmed |
Survival of Breeding Pacific Common Eiders on the Yukon‐Kuskokwim Delta, Alaska |
title_sort |
survival of breeding pacific common eiders on the yukon‐kuskokwim delta, alaska |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.2193/2005-776 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2193%2F2005-776 |
geographic |
Pacific Yukon |
geographic_facet |
Pacific Yukon |
genre |
Kuskokwim Somateria mollissima Alaska Yukon |
genre_facet |
Kuskokwim Somateria mollissima Alaska Yukon |
op_source |
The Journal of Wildlife Management volume 71, issue 2, page 403-410 ISSN 0022-541X 1937-2817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2193/2005-776 |
container_title |
Journal of Wildlife Management |
container_volume |
71 |
container_issue |
2 |
container_start_page |
403 |
op_container_end_page |
410 |
_version_ |
1795670041907167232 |