Demographic responses to climate change in a threatened Arctic species
Abstract 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 fisc...
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ftdoajarticles:oai:doaj.org/article:dfd2b29bb2924cec85292f6a18b9b33b 2023-05-15T14:46:08+02:00 Demographic responses to climate change in a threatened Arctic species Kylee D. Dunham Anna M. Tucker David N. Koons Asheber Abebe F. Stephen Dobson James B. Grand 2021-08-01T00:00:00Z https://doi.org/10.1002/ece3.7873 https://doaj.org/article/dfd2b29bb2924cec85292f6a18b9b33b EN eng Wiley https://doi.org/10.1002/ece3.7873 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.7873 https://doaj.org/article/dfd2b29bb2924cec85292f6a18b9b33b Ecology and Evolution, Vol 11, Iss 15, Pp 10627-10643 (2021) Alaska Arctic Russia Bering sea full annual cycle integrated population models Somateria fischeri Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.1002/ece3.7873 2022-12-31T13:01:04Z Abstract 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 ... Article in Journal/Newspaper Arctic Bering Sea Climate change Global warming Sea ice Alaska Directory of Open Access Journals: DOAJ Articles Arctic Bering Sea Ecology and Evolution 11 15 10627 10643 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Alaska Arctic Russia Bering sea full annual cycle integrated population models Somateria fischeri Ecology QH540-549.5 |
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Alaska Arctic Russia Bering sea full annual cycle integrated population models Somateria fischeri Ecology QH540-549.5 Kylee D. Dunham Anna M. Tucker David N. Koons Asheber Abebe F. Stephen Dobson James B. Grand Demographic responses to climate change in a threatened Arctic species |
topic_facet |
Alaska Arctic Russia Bering sea full annual cycle integrated population models Somateria fischeri Ecology QH540-549.5 |
description |
Abstract 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 ... |
format |
Article in Journal/Newspaper |
author |
Kylee D. Dunham Anna M. Tucker David N. Koons Asheber Abebe F. Stephen Dobson James B. Grand |
author_facet |
Kylee D. Dunham Anna M. Tucker David N. Koons Asheber Abebe F. Stephen Dobson James B. Grand |
author_sort |
Kylee D. Dunham |
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 |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1002/ece3.7873 https://doaj.org/article/dfd2b29bb2924cec85292f6a18b9b33b |
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_source |
Ecology and Evolution, Vol 11, Iss 15, Pp 10627-10643 (2021) |
op_relation |
https://doi.org/10.1002/ece3.7873 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.7873 https://doaj.org/article/dfd2b29bb2924cec85292f6a18b9b33b |
op_doi |
https://doi.org/10.1002/ece3.7873 |
container_title |
Ecology and Evolution |
container_volume |
11 |
container_issue |
15 |
container_start_page |
10627 |
op_container_end_page |
10643 |
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1766317396626243584 |