Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin.
International audience Although penguins are key marine predators from the Southern Ocean, their migratory behaviour during the inter-nesting period remains widely unknown. Here, we report for the first time, to our knowledge, the winter foraging movements and feeding habits of a penguin species by...
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Online Access: | https://hal.science/hal-00407261 https://doi.org/10.1098/rsbl.2009.0265 |
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ftunivnantes:oai:HAL:hal-00407261v1 2023-05-15T13:59:29+02:00 Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin. Bost, C. A. Thiebot, J. B. Pinaud, D. Cherel, Y. Trathan, P. N. Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2009-08-23 https://hal.science/hal-00407261 https://doi.org/10.1098/rsbl.2009.0265 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2009.0265 info:eu-repo/semantics/altIdentifier/pmid/19447814 hal-00407261 https://hal.science/hal-00407261 doi:10.1098/rsbl.2009.0265 PUBMED: 19447814 PUBMEDCENTRAL: PMC2781933 ISSN: 1744-9561 Biology Letters https://hal.science/hal-00407261 Biology Letters, 2009, 5 (4), pp.473-476. ⟨10.1098/rsbl.2009.0265⟩ foraging wintering penguins Southern Ocean stable isotopes bio-logging [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2009 ftunivnantes https://doi.org/10.1098/rsbl.2009.0265 2023-02-08T01:22:48Z International audience Although penguins are key marine predators from the Southern Ocean, their migratory behaviour during the inter-nesting period remains widely unknown. Here, we report for the first time, to our knowledge, the winter foraging movements and feeding habits of a penguin species by using geolocation sensors fitted on penguins with a new attachment method. We focused on the macaroni penguin Eudyptes chrysolophus at Kerguelen, the single largest consumer of marine prey among all seabirds. Overall, macaroni penguins performed very long winter trips, remaining at sea during approximately six months within the limits of the Southern Ocean. They departed from Kerguelen in an eastward direction and distributed widely, over more than 3.10(6) km(2). The penguins spent most of their time in a previously unrecognized foraging area, i.e. a narrow latitudinal band (47-49 degrees S) within the central Indian Ocean (70-110 degrees E), corresponding oceanographically to the Polar Frontal Zone. There, their blood isotopic niche indicated that macaroni penguins preyed mainly upon crustaceans, but not on Antarctic krill Euphausia superba, which does not occur at these northern latitudes. Such winter information is a crucial step for a better integrative approach for the conservation of this species whose world population is known to be declining. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Eudyptes chrysolophus Euphausia superba Macaroni penguin Southern Ocean Université de Nantes: HAL-UNIV-NANTES Antarctic Indian Kerguelen Southern Ocean Biology Letters 5 4 473 476 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
foraging wintering penguins Southern Ocean stable isotopes bio-logging [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
foraging wintering penguins Southern Ocean stable isotopes bio-logging [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes Bost, C. A. Thiebot, J. B. Pinaud, D. Cherel, Y. Trathan, P. N. Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin. |
topic_facet |
foraging wintering penguins Southern Ocean stable isotopes bio-logging [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Although penguins are key marine predators from the Southern Ocean, their migratory behaviour during the inter-nesting period remains widely unknown. Here, we report for the first time, to our knowledge, the winter foraging movements and feeding habits of a penguin species by using geolocation sensors fitted on penguins with a new attachment method. We focused on the macaroni penguin Eudyptes chrysolophus at Kerguelen, the single largest consumer of marine prey among all seabirds. Overall, macaroni penguins performed very long winter trips, remaining at sea during approximately six months within the limits of the Southern Ocean. They departed from Kerguelen in an eastward direction and distributed widely, over more than 3.10(6) km(2). The penguins spent most of their time in a previously unrecognized foraging area, i.e. a narrow latitudinal band (47-49 degrees S) within the central Indian Ocean (70-110 degrees E), corresponding oceanographically to the Polar Frontal Zone. There, their blood isotopic niche indicated that macaroni penguins preyed mainly upon crustaceans, but not on Antarctic krill Euphausia superba, which does not occur at these northern latitudes. Such winter information is a crucial step for a better integrative approach for the conservation of this species whose world population is known to be declining. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Bost, C. A. Thiebot, J. B. Pinaud, D. Cherel, Y. Trathan, P. N. |
author_facet |
Bost, C. A. Thiebot, J. B. Pinaud, D. Cherel, Y. Trathan, P. N. |
author_sort |
Bost, C. A. |
title |
Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin. |
title_short |
Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin. |
title_full |
Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin. |
title_fullStr |
Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin. |
title_full_unstemmed |
Where do penguins go during the inter-breeding period? Using geolocation to track the winter dispersion of the macaroni penguin. |
title_sort |
where do penguins go during the inter-breeding period? using geolocation to track the winter dispersion of the macaroni penguin. |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00407261 https://doi.org/10.1098/rsbl.2009.0265 |
geographic |
Antarctic Indian Kerguelen Southern Ocean |
geographic_facet |
Antarctic Indian Kerguelen Southern Ocean |
genre |
Antarc* Antarctic Antarctic Krill Eudyptes chrysolophus Euphausia superba Macaroni penguin Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Eudyptes chrysolophus Euphausia superba Macaroni penguin Southern Ocean |
op_source |
ISSN: 1744-9561 Biology Letters https://hal.science/hal-00407261 Biology Letters, 2009, 5 (4), pp.473-476. ⟨10.1098/rsbl.2009.0265⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2009.0265 info:eu-repo/semantics/altIdentifier/pmid/19447814 hal-00407261 https://hal.science/hal-00407261 doi:10.1098/rsbl.2009.0265 PUBMED: 19447814 PUBMEDCENTRAL: PMC2781933 |
op_doi |
https://doi.org/10.1098/rsbl.2009.0265 |
container_title |
Biology Letters |
container_volume |
5 |
container_issue |
4 |
container_start_page |
473 |
op_container_end_page |
476 |
_version_ |
1766268054469083136 |