Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands
International audience Seabirds are central place foragers, relying on prey that is patchily distributed and of variable predictability. Species travelling at a high energetic cost are more strongly dependent on spatially predictable prey. This is the case of diving petrels Pelecanoides spp., which...
Published in: | Marine Ecology Progress Series |
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Online Access: | https://hal.science/hal-03651876 https://hal.science/hal-03651876/document https://hal.science/hal-03651876/file/Bost%20et%20al.%202022%20MEPS.pdf https://doi.org/10.3354/meps14029 |
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ftccsdartic:oai:HAL:hal-03651876v1 2024-02-27T08:33:37+00:00 Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands Bost, Charles-André Delord, Karine Cherel, Yves Miskelly, Colin Carravieri, Alice Bustamante, Paco Arnould, J. P. Y. Fromant, Aymeric 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) Museum of New Zealand Te Papa Tongarewa LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Institut Universitaire de France (IUF) Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) School of Life and Environmental Sciences Burwood, Australia Deakin University Burwood 2022 https://hal.science/hal-03651876 https://hal.science/hal-03651876/document https://hal.science/hal-03651876/file/Bost%20et%20al.%202022%20MEPS.pdf https://doi.org/10.3354/meps14029 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps14029 hal-03651876 https://hal.science/hal-03651876 https://hal.science/hal-03651876/document https://hal.science/hal-03651876/file/Bost%20et%20al.%202022%20MEPS.pdf doi:10.3354/meps14029 info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03651876 Marine Ecology Progress Series, 2022, 689, pp.169-177. ⟨10.3354/meps14029⟩ At-sea distribution Trophic niche Procellariiformes Pelecanoides georgicus Southern Ocean [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2022 ftccsdartic https://doi.org/10.3354/meps14029 2024-01-28T01:12:44Z International audience Seabirds are central place foragers, relying on prey that is patchily distributed and of variable predictability. Species travelling at a high energetic cost are more strongly dependent on spatially predictable prey. This is the case of diving petrels Pelecanoides spp., which are small Procellariiformes that feed by pursuit diving and travel by flapping constantly. Despite their abundance and importance as zooplankton consumers, information on the foraging strategy of diving petrels is still lacking. The detailed at-sea movements and the trophic niche of the South Georgian diving petrel Pelecanoides georgicus was investigated for the first time using miniaturized GPS and the stable isotope method, respectively. Overall, South Georgian diving petrels from the Kerguelen Islands performed unexpected, direct and long-distance trips (mean foraging range: 191 to 217 km) to the Antarctic Polar front, south of the archipelago. This foraging ground is a productive and predictable area, where the birds stopped and fed at the distal part of their trip. Blood isotopic values indicate that the tracked birds fed consistently on macrozooplankton. Such a distant oceanic feeding strategy contrasts with the coastal foraging patterns of the closely related common diving petrel P. urinatrix. Commuting to a more distant but shallower resource allows South Georgian diving petrels to cope with its high commuting costs, and to segregate spatially from the sympatric common diving petrel during the breeding season. Article in Journal/Newspaper Antarc* Antarctic Kerguelen Islands Southern Ocean Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Kerguelen Kerguelen Islands Southern Ocean The Antarctic Marine Ecology Progress Series 689 169 177 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
At-sea distribution Trophic niche Procellariiformes Pelecanoides georgicus Southern Ocean [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
At-sea distribution Trophic niche Procellariiformes Pelecanoides georgicus Southern Ocean [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology Bost, Charles-André Delord, Karine Cherel, Yves Miskelly, Colin Carravieri, Alice Bustamante, Paco Arnould, J. P. Y. Fromant, Aymeric Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands |
topic_facet |
At-sea distribution Trophic niche Procellariiformes Pelecanoides georgicus Southern Ocean [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Seabirds are central place foragers, relying on prey that is patchily distributed and of variable predictability. Species travelling at a high energetic cost are more strongly dependent on spatially predictable prey. This is the case of diving petrels Pelecanoides spp., which are small Procellariiformes that feed by pursuit diving and travel by flapping constantly. Despite their abundance and importance as zooplankton consumers, information on the foraging strategy of diving petrels is still lacking. The detailed at-sea movements and the trophic niche of the South Georgian diving petrel Pelecanoides georgicus was investigated for the first time using miniaturized GPS and the stable isotope method, respectively. Overall, South Georgian diving petrels from the Kerguelen Islands performed unexpected, direct and long-distance trips (mean foraging range: 191 to 217 km) to the Antarctic Polar front, south of the archipelago. This foraging ground is a productive and predictable area, where the birds stopped and fed at the distal part of their trip. Blood isotopic values indicate that the tracked birds fed consistently on macrozooplankton. Such a distant oceanic feeding strategy contrasts with the coastal foraging patterns of the closely related common diving petrel P. urinatrix. Commuting to a more distant but shallower resource allows South Georgian diving petrels to cope with its high commuting costs, and to segregate spatially from the sympatric common diving petrel during the breeding season. |
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) Museum of New Zealand Te Papa Tongarewa LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Institut Universitaire de France (IUF) Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) School of Life and Environmental Sciences Burwood, Australia Deakin University Burwood |
format |
Article in Journal/Newspaper |
author |
Bost, Charles-André Delord, Karine Cherel, Yves Miskelly, Colin Carravieri, Alice Bustamante, Paco Arnould, J. P. Y. Fromant, Aymeric |
author_facet |
Bost, Charles-André Delord, Karine Cherel, Yves Miskelly, Colin Carravieri, Alice Bustamante, Paco Arnould, J. P. Y. Fromant, Aymeric |
author_sort |
Bost, Charles-André |
title |
Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands |
title_short |
Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands |
title_full |
Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands |
title_fullStr |
Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands |
title_full_unstemmed |
Foraging trips and isotopic niche of chick-rearing South Georgian diving petrels from the Kerguelen Islands |
title_sort |
foraging trips and isotopic niche of chick-rearing south georgian diving petrels from the kerguelen islands |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03651876 https://hal.science/hal-03651876/document https://hal.science/hal-03651876/file/Bost%20et%20al.%202022%20MEPS.pdf https://doi.org/10.3354/meps14029 |
geographic |
Antarctic Kerguelen Kerguelen Islands Southern Ocean The Antarctic |
geographic_facet |
Antarctic Kerguelen Kerguelen Islands Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Kerguelen Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Kerguelen Islands Southern Ocean |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03651876 Marine Ecology Progress Series, 2022, 689, pp.169-177. ⟨10.3354/meps14029⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps14029 hal-03651876 https://hal.science/hal-03651876 https://hal.science/hal-03651876/document https://hal.science/hal-03651876/file/Bost%20et%20al.%202022%20MEPS.pdf doi:10.3354/meps14029 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps14029 |
container_title |
Marine Ecology Progress Series |
container_volume |
689 |
container_start_page |
169 |
op_container_end_page |
177 |
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1792046610436325376 |