Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations

Summary Understanding how individuals and populations respond to fluctuations in climatic conditions is critical to explain and anticipate changes in ecological systems. Most such studies focus on climate impacts on single populations without considering inter‐ and intra‐population heterogeneity. Ho...

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Published in:Journal of Animal Ecology
Main Authors: Guéry, Loreleï, Descamps, Sébastien, Pradel, Roger, Hanssen, Sveinn Are, Erikstad, Kjell Einar, Gabrielsen, Geir W., Gilchrist, H. Grant, Bêty, Joël
Other Authors: Gaillard, Jean‐Michel, Environment Canada, Pinngortitaleriffik, Fonds Québécois de la Recherche sur la Nature et les Technologies, Natural Sciences and Engineering Research Council of Canada, Norges Forskningsråd
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2017
Subjects:
Online Access:http://dx.doi.org/10.1111/1365-2656.12643
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spelling crwiley:10.1111/1365-2656.12643 2024-06-02T08:01:59+00:00 Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations Guéry, Loreleï Descamps, Sébastien Pradel, Roger Hanssen, Sveinn Are Erikstad, Kjell Einar Gabrielsen, Geir W. Gilchrist, H. Grant Bêty, Joël Gaillard, Jean‐Michel Environment Canada Pinngortitaleriffik Fonds Québécois de la Recherche sur la Nature et les Technologies Natural Sciences and Engineering Research Council of Canada Norges Forskningsråd 2017 http://dx.doi.org/10.1111/1365-2656.12643 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2656.12643 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12643 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2656.12643 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12643 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Animal Ecology volume 86, issue 3, page 683-693 ISSN 0021-8790 1365-2656 journal-article 2017 crwiley https://doi.org/10.1111/1365-2656.12643 2024-05-03T11:31:29Z Summary Understanding how individuals and populations respond to fluctuations in climatic conditions is critical to explain and anticipate changes in ecological systems. Most such studies focus on climate impacts on single populations without considering inter‐ and intra‐population heterogeneity. However, comparing geographically dispersed populations limits the risk of faulty generalizations and helps to improve ecological and demographic models. We aimed to determine whether differences in migration tactics among and within populations would induce inter‐ or intra‐population heterogeneity in survival in relation to winter climate fluctuations. Our study species was the Common eider ( S omateria mollissima ), a marine duck with a circumpolar distribution, which is strongly affected by climatic conditions during several phases of its annual cycle. Capture‐mark‐recapture data were collected in two arctic (northern Canada and Svalbard) and one subarctic (northern Norway) population over a period of 18, 15, and 29 years respectively. These three populations have different migration tactics and experience different winter climatic conditions. Using multi‐event and mixture modelling, we assessed the association between adult female eider survival and winter conditions as measured by the North Atlantic Oscillation ( NAO ) index. We found that winter weather conditions affected the survival of female eiders from each of these three populations. However, different mechanisms seemed to be involved. Survival of the two migrating arctic populations was impacted directly by changes in the NAO , whereas the subarctic resident population was affected by the NAO with time lags of 2–3 years. Moreover, we found evidence for intra‐population heterogeneity in the survival response to the winter NAO in the Canadian eider population, where individuals migrate to distinct wintering areas. Our results illustrate how individuals and populations of the same species can vary in their responses to climate variation. We suspect that the ... Article in Journal/Newspaper Arctic Common Eider North Atlantic North Atlantic oscillation Northern Norway Subarctic Svalbard Wiley Online Library Arctic Canada Norway Svalbard Journal of Animal Ecology 86 3 683 693
institution Open Polar
collection Wiley Online Library
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language English
description Summary Understanding how individuals and populations respond to fluctuations in climatic conditions is critical to explain and anticipate changes in ecological systems. Most such studies focus on climate impacts on single populations without considering inter‐ and intra‐population heterogeneity. However, comparing geographically dispersed populations limits the risk of faulty generalizations and helps to improve ecological and demographic models. We aimed to determine whether differences in migration tactics among and within populations would induce inter‐ or intra‐population heterogeneity in survival in relation to winter climate fluctuations. Our study species was the Common eider ( S omateria mollissima ), a marine duck with a circumpolar distribution, which is strongly affected by climatic conditions during several phases of its annual cycle. Capture‐mark‐recapture data were collected in two arctic (northern Canada and Svalbard) and one subarctic (northern Norway) population over a period of 18, 15, and 29 years respectively. These three populations have different migration tactics and experience different winter climatic conditions. Using multi‐event and mixture modelling, we assessed the association between adult female eider survival and winter conditions as measured by the North Atlantic Oscillation ( NAO ) index. We found that winter weather conditions affected the survival of female eiders from each of these three populations. However, different mechanisms seemed to be involved. Survival of the two migrating arctic populations was impacted directly by changes in the NAO , whereas the subarctic resident population was affected by the NAO with time lags of 2–3 years. Moreover, we found evidence for intra‐population heterogeneity in the survival response to the winter NAO in the Canadian eider population, where individuals migrate to distinct wintering areas. Our results illustrate how individuals and populations of the same species can vary in their responses to climate variation. We suspect that the ...
author2 Gaillard, Jean‐Michel
Environment Canada
Pinngortitaleriffik
Fonds Québécois de la Recherche sur la Nature et les Technologies
Natural Sciences and Engineering Research Council of Canada
Norges Forskningsråd
format Article in Journal/Newspaper
author Guéry, Loreleï
Descamps, Sébastien
Pradel, Roger
Hanssen, Sveinn Are
Erikstad, Kjell Einar
Gabrielsen, Geir W.
Gilchrist, H. Grant
Bêty, Joël
spellingShingle Guéry, Loreleï
Descamps, Sébastien
Pradel, Roger
Hanssen, Sveinn Are
Erikstad, Kjell Einar
Gabrielsen, Geir W.
Gilchrist, H. Grant
Bêty, Joël
Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations
author_facet Guéry, Loreleï
Descamps, Sébastien
Pradel, Roger
Hanssen, Sveinn Are
Erikstad, Kjell Einar
Gabrielsen, Geir W.
Gilchrist, H. Grant
Bêty, Joël
author_sort Guéry, Loreleï
title Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations
title_short Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations
title_full Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations
title_fullStr Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations
title_full_unstemmed Hidden survival heterogeneity of three Common eider populations in response to climate fluctuations
title_sort hidden survival heterogeneity of three common eider populations in response to climate fluctuations
publisher Wiley
publishDate 2017
url http://dx.doi.org/10.1111/1365-2656.12643
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2656.12643
https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12643
https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2656.12643
https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12643
geographic Arctic
Canada
Norway
Svalbard
geographic_facet Arctic
Canada
Norway
Svalbard
genre Arctic
Common Eider
North Atlantic
North Atlantic oscillation
Northern Norway
Subarctic
Svalbard
genre_facet Arctic
Common Eider
North Atlantic
North Atlantic oscillation
Northern Norway
Subarctic
Svalbard
op_source Journal of Animal Ecology
volume 86, issue 3, page 683-693
ISSN 0021-8790 1365-2656
op_rights http://onlinelibrary.wiley.com/termsAndConditions#vor
op_doi https://doi.org/10.1111/1365-2656.12643
container_title Journal of Animal Ecology
container_volume 86
container_issue 3
container_start_page 683
op_container_end_page 693
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