Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics
Summary Understanding how seasonal environmental conditions affect the timing and distribution of synchronized animal movement patterns is a central issue in animal ecology. Migration, a behavioural adaptation to seasonal environmental fluctuations, is a fundamental part of the life history of numer...
Published in: | Journal of Animal Ecology |
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crwiley:10.1111/1365-2656.12050 2024-06-02T08:01:54+00:00 Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics Cherry, Seth G. Derocher, Andrew E. Thiemann, Gregory W. Lunn, Nicholas J. Wunder, Michael 2013 http://dx.doi.org/10.1111/1365-2656.12050 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2656.12050 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12050 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Animal Ecology volume 82, issue 4, page 912-921 ISSN 0021-8790 1365-2656 journal-article 2013 crwiley https://doi.org/10.1111/1365-2656.12050 2024-05-03T11:31:19Z Summary Understanding how seasonal environmental conditions affect the timing and distribution of synchronized animal movement patterns is a central issue in animal ecology. Migration, a behavioural adaptation to seasonal environmental fluctuations, is a fundamental part of the life history of numerous species. However, global climate change can alter the spatiotemporal distribution of resources and thus affect the seasonal movement patterns of migratory animals. We examined sea ice dynamics relative to migration patterns and seasonal geographical fidelity of an Arctic marine predator, the polar bear ( U rsus maritimus ). Polar bear movement patterns were quantified using satellite‐linked telemetry data collected from collars deployed between 1991–1997 and 2004–2009. We showed that specific sea ice characteristics can predict the timing of seasonal polar bear migration on and off terrestrial refugia. In addition, fidelity to specific onshore regions during the ice‐free period was predicted by the spatial pattern of sea ice break‐up but not by the timing of break‐up. The timing of migration showed a trend towards earlier arrival of polar bears on shore and later departure from land, which has been driven by climate‐induced declines in the availability of sea ice. Changes to the timing of migration have resulted in polar bears spending progressively longer periods of time on land without access to sea ice and their marine mammal prey. The links between increased atmospheric temperatures, sea ice dynamics, and the migratory behaviour of an ice‐dependent species emphasizes the importance of quantifying and monitoring relationships between migratory wildlife and environmental cues that may be altered by climate change. Article in Journal/Newspaper Arctic Climate change polar bear Sea ice Wiley Online Library Arctic Journal of Animal Ecology 82 4 912 921 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Summary Understanding how seasonal environmental conditions affect the timing and distribution of synchronized animal movement patterns is a central issue in animal ecology. Migration, a behavioural adaptation to seasonal environmental fluctuations, is a fundamental part of the life history of numerous species. However, global climate change can alter the spatiotemporal distribution of resources and thus affect the seasonal movement patterns of migratory animals. We examined sea ice dynamics relative to migration patterns and seasonal geographical fidelity of an Arctic marine predator, the polar bear ( U rsus maritimus ). Polar bear movement patterns were quantified using satellite‐linked telemetry data collected from collars deployed between 1991–1997 and 2004–2009. We showed that specific sea ice characteristics can predict the timing of seasonal polar bear migration on and off terrestrial refugia. In addition, fidelity to specific onshore regions during the ice‐free period was predicted by the spatial pattern of sea ice break‐up but not by the timing of break‐up. The timing of migration showed a trend towards earlier arrival of polar bears on shore and later departure from land, which has been driven by climate‐induced declines in the availability of sea ice. Changes to the timing of migration have resulted in polar bears spending progressively longer periods of time on land without access to sea ice and their marine mammal prey. The links between increased atmospheric temperatures, sea ice dynamics, and the migratory behaviour of an ice‐dependent species emphasizes the importance of quantifying and monitoring relationships between migratory wildlife and environmental cues that may be altered by climate change. |
author2 |
Wunder, Michael |
format |
Article in Journal/Newspaper |
author |
Cherry, Seth G. Derocher, Andrew E. Thiemann, Gregory W. Lunn, Nicholas J. |
spellingShingle |
Cherry, Seth G. Derocher, Andrew E. Thiemann, Gregory W. Lunn, Nicholas J. Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics |
author_facet |
Cherry, Seth G. Derocher, Andrew E. Thiemann, Gregory W. Lunn, Nicholas J. |
author_sort |
Cherry, Seth G. |
title |
Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics |
title_short |
Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics |
title_full |
Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics |
title_fullStr |
Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics |
title_full_unstemmed |
Migration phenology and seasonal fidelity of an Arctic marine predator in relation to sea ice dynamics |
title_sort |
migration phenology and seasonal fidelity of an arctic marine predator in relation to sea ice dynamics |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/1365-2656.12050 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2656.12050 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12050 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change polar bear Sea ice |
genre_facet |
Arctic Climate change polar bear Sea ice |
op_source |
Journal of Animal Ecology volume 82, issue 4, page 912-921 ISSN 0021-8790 1365-2656 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2656.12050 |
container_title |
Journal of Animal Ecology |
container_volume |
82 |
container_issue |
4 |
container_start_page |
912 |
op_container_end_page |
921 |
_version_ |
1800746408130641920 |