Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions
International audience Distant populations of animals may share their non-breeding grounds or migrate to distinctareas, and this may have important consequences for population differentiation and dynamics.Small burrow-nesting seabirds provide a suitable case study, as they are often restrictedto saf...
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Online Access: | https://hal.archives-ouvertes.fr/hal-01199776 https://doi.org/10.1371/journal.pone.0125007 |
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ftunivnantes:oai:HAL:hal-01199776v1 2023-05-15T18:25:45+02:00 Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions Quillfeldt, Petra Cherel, Yves Masello, Juan F. Delord, Karine Mcgill, Rona A. R. Furness, Robert, Moodley, Yoshan Weimerkirsch, Henri Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2015-05-27 https://hal.archives-ouvertes.fr/hal-01199776 https://doi.org/10.1371/journal.pone.0125007 en eng HAL CCSD Public Library of Science info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0125007 hal-01199776 https://hal.archives-ouvertes.fr/hal-01199776 doi:10.1371/journal.pone.0125007 PUBMEDCENTRAL: PMC4446212 ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://hal.archives-ouvertes.fr/hal-01199776 PLoS ONE, 2015, 10 (5), pp.e0125007. ⟨10.1371/journal.pone.0125007⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2015 ftunivnantes https://doi.org/10.1371/journal.pone.0125007 2023-01-04T00:07:45Z International audience Distant populations of animals may share their non-breeding grounds or migrate to distinctareas, and this may have important consequences for population differentiation and dynamics.Small burrow-nesting seabirds provide a suitable case study, as they are often restrictedto safe breeding sites on islands, resulting in a patchy breeding distribution. Forexample, Thin-billed prions Pachyptila belcheri have two major breeding colonies morethan 8,000 km apart, on the Falkland Islands in the south-western Atlantic and in the KerguelenArchipelago in the Indian Ocean. We used geolocators and stable isotopes to compareat-sea movements and trophic levels of these two populations during their nonbreedingseason, and applied ecological niche models to compare environmental conditionsin the habitat. Over three winters, birds breeding in the Atlantic showed a high consistencyin their migration routes. Most individuals migrated more than 3000 km eastwards,while very few remained over the Patagonian Shelf. In contrast, all Indian Ocean birds migratedwestwards, resulting in an overlapping nonbreeding area in the eastern Atlantic sectorof the Southern Ocean. Geolocators and isotopic signature of feathers indicated thatprions from the Falklands moulted at slightly higher latitudes than those from Kerguelen Islands.All birds fed on low trophic level prey, most probably crustaceans. The phenology differednotably between the two populations. Falkland birds returned to the Patagonian Shelfafter 2-3 months, while Kerguelen birds remained in the nonbreeding area for sevenmonths, before returning to nesting grounds highly synchronously and at high speed. Habitatmodels identified sea surface temperature and chlorophyll a concentration as importantenvironmental parameters. In summary, we show that even though the two very distant populationsmigrate to roughly the same area to moult, they have distinct wintering strategies:They had significantly different realized niches and timing which may contribute to ... Article in Journal/Newspaper Southern Ocean Université de Nantes: HAL-UNIV-NANTES Indian Kerguelen Southern Ocean PLOS ONE 10 5 e0125007 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Quillfeldt, Petra Cherel, Yves Masello, Juan F. Delord, Karine Mcgill, Rona A. R. Furness, Robert, Moodley, Yoshan Weimerkirsch, Henri Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Distant populations of animals may share their non-breeding grounds or migrate to distinctareas, and this may have important consequences for population differentiation and dynamics.Small burrow-nesting seabirds provide a suitable case study, as they are often restrictedto safe breeding sites on islands, resulting in a patchy breeding distribution. Forexample, Thin-billed prions Pachyptila belcheri have two major breeding colonies morethan 8,000 km apart, on the Falkland Islands in the south-western Atlantic and in the KerguelenArchipelago in the Indian Ocean. We used geolocators and stable isotopes to compareat-sea movements and trophic levels of these two populations during their nonbreedingseason, and applied ecological niche models to compare environmental conditionsin the habitat. Over three winters, birds breeding in the Atlantic showed a high consistencyin their migration routes. Most individuals migrated more than 3000 km eastwards,while very few remained over the Patagonian Shelf. In contrast, all Indian Ocean birds migratedwestwards, resulting in an overlapping nonbreeding area in the eastern Atlantic sectorof the Southern Ocean. Geolocators and isotopic signature of feathers indicated thatprions from the Falklands moulted at slightly higher latitudes than those from Kerguelen Islands.All birds fed on low trophic level prey, most probably crustaceans. The phenology differednotably between the two populations. Falkland birds returned to the Patagonian Shelfafter 2-3 months, while Kerguelen birds remained in the nonbreeding area for sevenmonths, before returning to nesting grounds highly synchronously and at high speed. Habitatmodels identified sea surface temperature and chlorophyll a concentration as importantenvironmental parameters. In summary, we show that even though the two very distant populationsmigrate to roughly the same area to moult, they have distinct wintering strategies:They had significantly different realized niches and timing which may contribute to ... |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Quillfeldt, Petra Cherel, Yves Masello, Juan F. Delord, Karine Mcgill, Rona A. R. Furness, Robert, Moodley, Yoshan Weimerkirsch, Henri |
author_facet |
Quillfeldt, Petra Cherel, Yves Masello, Juan F. Delord, Karine Mcgill, Rona A. R. Furness, Robert, Moodley, Yoshan Weimerkirsch, Henri |
author_sort |
Quillfeldt, Petra |
title |
Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions |
title_short |
Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions |
title_full |
Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions |
title_fullStr |
Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions |
title_full_unstemmed |
Half a World Apart? Overlap in Nonbreeding Distributions of Atlantic and Indian Ocean Thin-Billed Prions |
title_sort |
half a world apart? overlap in nonbreeding distributions of atlantic and indian ocean thin-billed prions |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.archives-ouvertes.fr/hal-01199776 https://doi.org/10.1371/journal.pone.0125007 |
geographic |
Indian Kerguelen Southern Ocean |
geographic_facet |
Indian Kerguelen Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://hal.archives-ouvertes.fr/hal-01199776 PLoS ONE, 2015, 10 (5), pp.e0125007. ⟨10.1371/journal.pone.0125007⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0125007 hal-01199776 https://hal.archives-ouvertes.fr/hal-01199776 doi:10.1371/journal.pone.0125007 PUBMEDCENTRAL: PMC4446212 |
op_doi |
https://doi.org/10.1371/journal.pone.0125007 |
container_title |
PLOS ONE |
container_volume |
10 |
container_issue |
5 |
container_start_page |
e0125007 |
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1766207403480580096 |