Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins
International audience For land-breeding marine organisms such as seabirds, knowledge about their habitat use has mainly been gained through studies of breeding individuals that are constrained to return frequently to their breeding grounds. In this study we set out to measure whether: a) habitat se...
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Online Access: | https://doi.org/10.1017/S0954102010000957 https://hal.archives-ouvertes.fr/hal-00565640 |
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fttriple:oai:gotriple.eu:10670/1.gi3gnw 2023-05-15T14:05:10+02:00 Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins Thiebot, Jean-Baptiste Lescroel, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2011-01-01 https://doi.org/10.1017/S0954102010000957 https://hal.archives-ouvertes.fr/hal-00565640 en eng HAL CCSD hal-00565640 doi:10.1017/S0954102010000957 10670/1.gi3gnw https://hal.archives-ouvertes.fr/hal-00565640 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE, 2011, 23 (2), pp.117-126. ⟨10.1017/S0954102010000957⟩ central place foragers ecological niche Iles Kerguelen juvenile winter envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.1017/S0954102010000957 2023-01-22T17:00:28Z International audience For land-breeding marine organisms such as seabirds, knowledge about their habitat use has mainly been gained through studies of breeding individuals that are constrained to return frequently to their breeding grounds. In this study we set out to measure whether: a) habitat selection in the non-breeding period predicts habitat selection in the breeding period, and b) whether breeding individuals concentrated their activity on the closest suitable habitats. Macaroni Eudyptes chrysolophus and gentoo Pygoscelis papua penguins, two marine predators with contrasting foraging strategies, were tracked from the Iles Kerguelen and their habitat selection investigated through Mahalanobis distances factorial analysis. This study presents the first data about gentoo penguins' juvenile dispersal. For both species, results showed 6.9 times larger maximum ranges and up to 12.2 times greater distances travelled during the non-breeding period. Habitat suitability maps suggested both species made similar environmental selections whatever the period. Macaroni penguins targeted pelagic areas beyond the shelf break while gentoo penguins always remained over the shelf. We consider the ecological significance of larger scale movements made outside the breeding period and suggest that this non-breeding period is of particular interest when attempting to understand an animal's habitat selection. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Eudyptes chrysolophus Pygoscelis papua Unknown Antarctic Kerguelen Antarctic Science 23 2 117 126 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
central place foragers ecological niche Iles Kerguelen juvenile winter envir geo |
spellingShingle |
central place foragers ecological niche Iles Kerguelen juvenile winter envir geo Thiebot, Jean-Baptiste Lescroel, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
topic_facet |
central place foragers ecological niche Iles Kerguelen juvenile winter envir geo |
description |
International audience For land-breeding marine organisms such as seabirds, knowledge about their habitat use has mainly been gained through studies of breeding individuals that are constrained to return frequently to their breeding grounds. In this study we set out to measure whether: a) habitat selection in the non-breeding period predicts habitat selection in the breeding period, and b) whether breeding individuals concentrated their activity on the closest suitable habitats. Macaroni Eudyptes chrysolophus and gentoo Pygoscelis papua penguins, two marine predators with contrasting foraging strategies, were tracked from the Iles Kerguelen and their habitat selection investigated through Mahalanobis distances factorial analysis. This study presents the first data about gentoo penguins' juvenile dispersal. For both species, results showed 6.9 times larger maximum ranges and up to 12.2 times greater distances travelled during the non-breeding period. Habitat suitability maps suggested both species made similar environmental selections whatever the period. Macaroni penguins targeted pelagic areas beyond the shelf break while gentoo penguins always remained over the shelf. We consider the ecological significance of larger scale movements made outside the breeding period and suggest that this non-breeding period is of particular interest when attempting to understand an animal's habitat selection. |
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 |
Thiebot, Jean-Baptiste Lescroel, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André |
author_facet |
Thiebot, Jean-Baptiste Lescroel, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André |
author_sort |
Thiebot, Jean-Baptiste |
title |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_short |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_full |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_fullStr |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_full_unstemmed |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_sort |
larger foraging range but similar habitat selection in non-breeding versus breeding sub-antarctic penguins |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://doi.org/10.1017/S0954102010000957 https://hal.archives-ouvertes.fr/hal-00565640 |
geographic |
Antarctic Kerguelen |
geographic_facet |
Antarctic Kerguelen |
genre |
Antarc* Antarctic Antarctic Science Eudyptes chrysolophus Pygoscelis papua |
genre_facet |
Antarc* Antarctic Antarctic Science Eudyptes chrysolophus Pygoscelis papua |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE Antarctic Science / ANTARCTICA ANTARCTIC SCIENCE, 2011, 23 (2), pp.117-126. ⟨10.1017/S0954102010000957⟩ |
op_relation |
hal-00565640 doi:10.1017/S0954102010000957 10670/1.gi3gnw https://hal.archives-ouvertes.fr/hal-00565640 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1017/S0954102010000957 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
2 |
container_start_page |
117 |
op_container_end_page |
126 |
_version_ |
1766276878056816640 |