Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds
Although there is increasing evidence that climatic variations during the non-breeding season shape population dynamics of seabirds, most aspects of their winter distribution and ecology remain essentially unknown. We used stable isotope signatures in feathers to infer and compare the moulting (wint...
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crroyalsociety:10.1098/rsbl.2006.0445 2024-06-02T07:57:58+00:00 Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds Cherel, Y Phillips, Richard A Hobson, Keith A McGill, Rona 2006 http://dx.doi.org/10.1098/rsbl.2006.0445 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2006.0445 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2006.0445 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Biology Letters volume 2, issue 2, page 301-303 ISSN 1744-9561 1744-957X journal-article 2006 crroyalsociety https://doi.org/10.1098/rsbl.2006.0445 2024-05-07T14:16:28Z Although there is increasing evidence that climatic variations during the non-breeding season shape population dynamics of seabirds, most aspects of their winter distribution and ecology remain essentially unknown. We used stable isotope signatures in feathers to infer and compare the moulting (wintering) habitat of subantarctic petrels breeding at two distant localities (South Georgia and Kerguelen). Petrels showed species-specific wintering habitat preferences, with a similar pattern of latitudinal segregation for all but one taxon. At both localities, δ 13 C values indicated that blue petrels ( Halobaena caerulea ) moult in Antarctic waters, South Georgian diving petrels ( Pelecanoides georgicus ) in the vicinity of the archipelagos and/or in the Polar Frontal Zone and Antarctic prions ( Pachyptila desolata ) in warmer waters. In contrast, common diving petrels ( Pelecanoides urinatrix ) showed divergent strategies, with low and high intrapopulation variation at South Georgia and Kerguelen, respectively. Birds from Kerguelen dispersed over a much wider range of habitats, from coastal to oceanic waters and from Antarctica to the subtropics, whereas those from South Georgia wintered mainly in waters around the archipelago. This study is the first to show such striking between-population heterogeneity in individual wintering strategies, which could have important implications for likely demographic responses to environmental perturbation. Article in Journal/Newspaper Antarc* Antarctic Antarctica Pachyptila desolata The Royal Society Antarctic Kerguelen Biology Letters 2 2 301 303 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Although there is increasing evidence that climatic variations during the non-breeding season shape population dynamics of seabirds, most aspects of their winter distribution and ecology remain essentially unknown. We used stable isotope signatures in feathers to infer and compare the moulting (wintering) habitat of subantarctic petrels breeding at two distant localities (South Georgia and Kerguelen). Petrels showed species-specific wintering habitat preferences, with a similar pattern of latitudinal segregation for all but one taxon. At both localities, δ 13 C values indicated that blue petrels ( Halobaena caerulea ) moult in Antarctic waters, South Georgian diving petrels ( Pelecanoides georgicus ) in the vicinity of the archipelagos and/or in the Polar Frontal Zone and Antarctic prions ( Pachyptila desolata ) in warmer waters. In contrast, common diving petrels ( Pelecanoides urinatrix ) showed divergent strategies, with low and high intrapopulation variation at South Georgia and Kerguelen, respectively. Birds from Kerguelen dispersed over a much wider range of habitats, from coastal to oceanic waters and from Antarctica to the subtropics, whereas those from South Georgia wintered mainly in waters around the archipelago. This study is the first to show such striking between-population heterogeneity in individual wintering strategies, which could have important implications for likely demographic responses to environmental perturbation. |
format |
Article in Journal/Newspaper |
author |
Cherel, Y Phillips, Richard A Hobson, Keith A McGill, Rona |
spellingShingle |
Cherel, Y Phillips, Richard A Hobson, Keith A McGill, Rona Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds |
author_facet |
Cherel, Y Phillips, Richard A Hobson, Keith A McGill, Rona |
author_sort |
Cherel, Y |
title |
Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds |
title_short |
Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds |
title_full |
Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds |
title_fullStr |
Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds |
title_full_unstemmed |
Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds |
title_sort |
stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds |
publisher |
The Royal Society |
publishDate |
2006 |
url |
http://dx.doi.org/10.1098/rsbl.2006.0445 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2006.0445 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2006.0445 |
geographic |
Antarctic Kerguelen |
geographic_facet |
Antarctic Kerguelen |
genre |
Antarc* Antarctic Antarctica Pachyptila desolata |
genre_facet |
Antarc* Antarctic Antarctica Pachyptila desolata |
op_source |
Biology Letters volume 2, issue 2, page 301-303 ISSN 1744-9561 1744-957X |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsbl.2006.0445 |
container_title |
Biology Letters |
container_volume |
2 |
container_issue |
2 |
container_start_page |
301 |
op_container_end_page |
303 |
_version_ |
1800741205645983744 |