Demographic responses to climate change in a threatened Arctic species
The Arctic is undergoing rapid and accelerating change in response to global warming, altering biodiversity patterns and ecosystem function across the region. For Arctic endemic species, our understanding of the consequences of such change remains limited. Spectacled eiders (Somateria fischeri), a l...
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ftzenodo:oai:zenodo.org:6928774 2023-06-06T11:49:47+02:00 Demographic responses to climate change in a threatened Arctic species Dunham, Kylee D. Tucker, Anna M. Koons, David N. Abebe, Asheber Dobson, F. Stephen Grand, James B. 2022-07-28 https://zenodo.org/record/6928774 https://doi.org/10.5061/dryad.4qrfj6q88 unknown doi:10.1002/ece3.7873 doi:10.5281/zenodo.5142475 https://zenodo.org/communities/dryad https://zenodo.org/record/6928774 https://doi.org/10.5061/dryad.4qrfj6q88 oai:zenodo.org:6928774 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode info:eu-repo/semantics/other dataset 2022 ftzenodo https://doi.org/10.5061/dryad.4qrfj6q8810.1002/ece3.787310.5281/zenodo.5142475 2023-04-13T21:58:34Z The Arctic is undergoing rapid and accelerating change in response to global warming, altering biodiversity patterns and ecosystem function across the region. For Arctic endemic species, our understanding of the consequences of such change remains limited. Spectacled eiders (Somateria fischeri), a large Arctic sea duck, use remote regions in the Bering Sea, Arctic Russia, and Alaska throughout the annual cycle making it difficult to conduct comprehensive surveys or demographic studies. Listed as Threatened under the U.S. Endangered Species Act, understanding the species response to climate change is critical for effective conservation policy and planning. Here, we developed an integrated population model to describe spectacled eider population dynamics using capture-mark-recapture, breeding population survey, nest survey, and environmental data collected between 1992 and 2014. Our intent was to estimate abundance, population growth, and demographic rates, and quantify how changes in the environment influenced population dynamics. Abundance of spectacled eiders breeding in western Alaska has increased since listing in 1993 and responded more strongly to annual variation in first year survival than adult survival or productivity. We found both adult survival and nest success were highest in years following intermediate sea ice conditions during the wintering period, and both demographic rates declined when sea ice conditions were above or below average. In recent years sea ice extent has reached new record lows and has remained below average throughout the winter for multiple years in a row. Sea ice persistence is expected to further decline in the Bering Sea. Our results indicate spectacled eiders may be vulnerable to climate change and the increasingly variable sea ice conditions throughout their wintering range with potentially deleterious effects on population dynamics. Importantly, we identified that different demographic rates responded similarly to changes in sea ice conditions, emphasizing the need for ... Dataset Arctic Bering Sea Climate change Global warming Sea ice Alaska Zenodo Arctic Bering Sea |
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Open Polar |
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ftzenodo |
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The Arctic is undergoing rapid and accelerating change in response to global warming, altering biodiversity patterns and ecosystem function across the region. For Arctic endemic species, our understanding of the consequences of such change remains limited. Spectacled eiders (Somateria fischeri), a large Arctic sea duck, use remote regions in the Bering Sea, Arctic Russia, and Alaska throughout the annual cycle making it difficult to conduct comprehensive surveys or demographic studies. Listed as Threatened under the U.S. Endangered Species Act, understanding the species response to climate change is critical for effective conservation policy and planning. Here, we developed an integrated population model to describe spectacled eider population dynamics using capture-mark-recapture, breeding population survey, nest survey, and environmental data collected between 1992 and 2014. Our intent was to estimate abundance, population growth, and demographic rates, and quantify how changes in the environment influenced population dynamics. Abundance of spectacled eiders breeding in western Alaska has increased since listing in 1993 and responded more strongly to annual variation in first year survival than adult survival or productivity. We found both adult survival and nest success were highest in years following intermediate sea ice conditions during the wintering period, and both demographic rates declined when sea ice conditions were above or below average. In recent years sea ice extent has reached new record lows and has remained below average throughout the winter for multiple years in a row. Sea ice persistence is expected to further decline in the Bering Sea. Our results indicate spectacled eiders may be vulnerable to climate change and the increasingly variable sea ice conditions throughout their wintering range with potentially deleterious effects on population dynamics. Importantly, we identified that different demographic rates responded similarly to changes in sea ice conditions, emphasizing the need for ... |
format |
Dataset |
author |
Dunham, Kylee D. Tucker, Anna M. Koons, David N. Abebe, Asheber Dobson, F. Stephen Grand, James B. |
spellingShingle |
Dunham, Kylee D. Tucker, Anna M. Koons, David N. Abebe, Asheber Dobson, F. Stephen Grand, James B. Demographic responses to climate change in a threatened Arctic species |
author_facet |
Dunham, Kylee D. Tucker, Anna M. Koons, David N. Abebe, Asheber Dobson, F. Stephen Grand, James B. |
author_sort |
Dunham, Kylee D. |
title |
Demographic responses to climate change in a threatened Arctic species |
title_short |
Demographic responses to climate change in a threatened Arctic species |
title_full |
Demographic responses to climate change in a threatened Arctic species |
title_fullStr |
Demographic responses to climate change in a threatened Arctic species |
title_full_unstemmed |
Demographic responses to climate change in a threatened Arctic species |
title_sort |
demographic responses to climate change in a threatened arctic species |
publishDate |
2022 |
url |
https://zenodo.org/record/6928774 https://doi.org/10.5061/dryad.4qrfj6q88 |
geographic |
Arctic Bering Sea |
geographic_facet |
Arctic Bering Sea |
genre |
Arctic Bering Sea Climate change Global warming Sea ice Alaska |
genre_facet |
Arctic Bering Sea Climate change Global warming Sea ice Alaska |
op_relation |
doi:10.1002/ece3.7873 doi:10.5281/zenodo.5142475 https://zenodo.org/communities/dryad https://zenodo.org/record/6928774 https://doi.org/10.5061/dryad.4qrfj6q88 oai:zenodo.org:6928774 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.4qrfj6q8810.1002/ece3.787310.5281/zenodo.5142475 |
_version_ |
1767955467065098240 |