Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird?
Background: During the non-breeding period, many birds migrate to milder areas, found closer to the equator than their breeding sites. Opposite movements are very rare. In the Southern Ocean, the abundance of 13C declines markedly with more southern latitude, providing a characteristic 13C isoscape....
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Online Access: | https://doi.org/10.1186/1742-9994-7-15 https://jlupub.ub.uni-giessen.de//handle/jlupub/247 https://doi.org/10.22029/jlupub-194 |
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ftubgiessen:oai:jlupub.ub.uni-giessen.de:jlupub/247 2024-05-12T07:54:56+00:00 Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? Quillfeldt, Petra Masello, Juan F. McGill, Rona A.R. Adams, Mark Furness, Robert W. 2021-09-27T09:11:52Z application/pdf https://doi.org/10.1186/1742-9994-7-15 https://jlupub.ub.uni-giessen.de//handle/jlupub/247 https://doi.org/10.22029/jlupub-194 en eng https://doi.org/10.1186/1742-9994-7-15 https://jlupub.ub.uni-giessen.de//handle/jlupub/247 http://dx.doi.org/10.22029/jlupub-194 Namensnennung 2.0 International https://creativecommons.org/licenses/by/2.0/ ddc:570 ddc:590 article 2021 ftubgiessen https://doi.org/10.1186/1742-9994-7-1510.22029/jlupub-194 2024-04-17T09:59:53Z Background: During the non-breeding period, many birds migrate to milder areas, found closer to the equator than their breeding sites. Opposite movements are very rare. In the Southern Ocean, the abundance of 13C declines markedly with more southern latitude, providing a characteristic 13C isoscape. This can be used as a tracer for the movement of seabirds between breeding and inter-breeding areas, by comparing stable isotope ratios of feathers grown at different times of the year. Results: We studied seasonal movements of Thin-billed prions (Aves, Procellariiformes), breeding at the Subantarctic Falkland/Malvinas Islands, compared with those of Wilson's storm-petrels breeding in the Antarctic South Shetland Islands. The two species showed opposite migratory movements. While Wilson's storm-petrels moved to warmer waters north of the Drake Passage in winter, Thin-billed prions showed a reversed movement towards more polar waters. Carbon stable isotope ratios in recent and historical feathers indicated that poleward winter movements of Thin-billed prions were less common historically (45% in 1913-1915), and have only recently become dominant (92% in 2003-2005), apparently in response to warming sea temperatures. Conclusions: This study shows that pelagic seabirds can rapidly change migration strategies within populations, including migration towards more poleward waters in winter. Article in Journal/Newspaper Antarc* Antarctic Drake Passage South Shetland Islands Southern Ocean Publication Server of the Justus-Liebig-University of Giessen Antarctic Southern Ocean The Antarctic Drake Passage South Shetland Islands |
institution |
Open Polar |
collection |
Publication Server of the Justus-Liebig-University of Giessen |
op_collection_id |
ftubgiessen |
language |
English |
topic |
ddc:570 ddc:590 |
spellingShingle |
ddc:570 ddc:590 Quillfeldt, Petra Masello, Juan F. McGill, Rona A.R. Adams, Mark Furness, Robert W. Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? |
topic_facet |
ddc:570 ddc:590 |
description |
Background: During the non-breeding period, many birds migrate to milder areas, found closer to the equator than their breeding sites. Opposite movements are very rare. In the Southern Ocean, the abundance of 13C declines markedly with more southern latitude, providing a characteristic 13C isoscape. This can be used as a tracer for the movement of seabirds between breeding and inter-breeding areas, by comparing stable isotope ratios of feathers grown at different times of the year. Results: We studied seasonal movements of Thin-billed prions (Aves, Procellariiformes), breeding at the Subantarctic Falkland/Malvinas Islands, compared with those of Wilson's storm-petrels breeding in the Antarctic South Shetland Islands. The two species showed opposite migratory movements. While Wilson's storm-petrels moved to warmer waters north of the Drake Passage in winter, Thin-billed prions showed a reversed movement towards more polar waters. Carbon stable isotope ratios in recent and historical feathers indicated that poleward winter movements of Thin-billed prions were less common historically (45% in 1913-1915), and have only recently become dominant (92% in 2003-2005), apparently in response to warming sea temperatures. Conclusions: This study shows that pelagic seabirds can rapidly change migration strategies within populations, including migration towards more poleward waters in winter. |
format |
Article in Journal/Newspaper |
author |
Quillfeldt, Petra Masello, Juan F. McGill, Rona A.R. Adams, Mark Furness, Robert W. |
author_facet |
Quillfeldt, Petra Masello, Juan F. McGill, Rona A.R. Adams, Mark Furness, Robert W. |
author_sort |
Quillfeldt, Petra |
title |
Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? |
title_short |
Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? |
title_full |
Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? |
title_fullStr |
Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? |
title_full_unstemmed |
Moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? |
title_sort |
moving polewards in winter: a recent change in the migratory strategy of a pelagic seabird? |
publishDate |
2021 |
url |
https://doi.org/10.1186/1742-9994-7-15 https://jlupub.ub.uni-giessen.de//handle/jlupub/247 https://doi.org/10.22029/jlupub-194 |
geographic |
Antarctic Southern Ocean The Antarctic Drake Passage South Shetland Islands |
geographic_facet |
Antarctic Southern Ocean The Antarctic Drake Passage South Shetland Islands |
genre |
Antarc* Antarctic Drake Passage South Shetland Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage South Shetland Islands Southern Ocean |
op_relation |
https://doi.org/10.1186/1742-9994-7-15 https://jlupub.ub.uni-giessen.de//handle/jlupub/247 http://dx.doi.org/10.22029/jlupub-194 |
op_rights |
Namensnennung 2.0 International https://creativecommons.org/licenses/by/2.0/ |
op_doi |
https://doi.org/10.1186/1742-9994-7-1510.22029/jlupub-194 |
_version_ |
1798853637229772800 |