Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin
International audience Individual specialisations have been suggested to improve foraging efficiency by optimising individual capacity (physiological and behavioural) and reducing intra-specific competition in exploiting prey resources. In this study we investigated the inter- and intra-individual v...
Published in: | Marine Ecology Progress Series |
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Online Access: | https://hal.science/hal-01620252 https://hal.science/hal-01620252/document https://hal.science/hal-01620252/file/Camprasse%20et%20al%202017%20MEPS.pdf https://doi.org/10.3354/meps12151 |
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ftinsu:oai:HAL:hal-01620252v1 2023-05-15T16:19:36+02:00 Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin Camprasse, Elodie, Cherel, Yves Bustamante, Paco Arnould, John, Bost, Charles-André School of Life and Environmental Sciences Deakin University Burwood Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2017-08-31 https://hal.science/hal-01620252 https://hal.science/hal-01620252/document https://hal.science/hal-01620252/file/Camprasse%20et%20al%202017%20MEPS.pdf https://doi.org/10.3354/meps12151 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps12151 hal-01620252 https://hal.science/hal-01620252 https://hal.science/hal-01620252/document https://hal.science/hal-01620252/file/Camprasse%20et%20al%202017%20MEPS.pdf doi:10.3354/meps12151 info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-01620252 Marine Ecology Progress Series, 2017, 578, pp.227 - 242. ⟨10.3354/meps12151⟩ Individual specialisations Gentoo penguins Foraging behaviour Behavioural consistency · Diving behaviour · Feeding ecology Pygoscelis papua Stable isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2017 ftinsu https://doi.org/10.3354/meps12151 2023-02-15T19:58:18Z International audience Individual specialisations have been suggested to improve foraging efficiency by optimising individual capacity (physiological and behavioural) and reducing intra-specific competition in exploiting prey resources. In this study we investigated the inter- and intra-individual variation in behaviour in an opportunistic forager, the Gentoo penguin (Pygoscelis papua), at Kerguelen Island, southern Indian Ocean. We used complementary bio-logging and stable isotope analyses, coupled with morphometric measurements, to: 1) determine the inter-individual variation in morphology and foraging behaviour; 2) quantify intra-individual variation in foraging behaviour; 3) investigate the links between consistency in foraging, distances travelled and body condition; and 4) determine if dietary specialisations exist and are maintained outside the breeding season. We show that this species exhibits a large inter-individual variation in foraging behaviour with some individuals conducting very short trips close to the colony while others travelled considerably further. Heavier individuals tended to forage in more distant locations, dive deeper and perform more benthic dives. Individual specialisation in behaviour was low to moderate at the population level, yet some individuals were very consistent. The rate of travel was not influenced by consistency, and there was a lack of correlation between body condition and foraging consistency. High inter-individual variation in feeding ecology and dietary specialisations outside of a single breeding season were observed, consistent with Gentoo penguins being Type “B” generalists (i.e. generalist populations composed of individuals each consuming a different range of foods). Article in Journal/Newspaper Gentoo penguin Pygoscelis papua Institut national des sciences de l'Univers: HAL-INSU Kerguelen Indian Kerguelen Island ENVELOPE(69.500,69.500,-49.250,-49.250) Marine Ecology Progress Series 578 227 242 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Individual specialisations Gentoo penguins Foraging behaviour Behavioural consistency · Diving behaviour · Feeding ecology Pygoscelis papua Stable isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
Individual specialisations Gentoo penguins Foraging behaviour Behavioural consistency · Diving behaviour · Feeding ecology Pygoscelis papua Stable isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Camprasse, Elodie, Cherel, Yves Bustamante, Paco Arnould, John, Bost, Charles-André Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin |
topic_facet |
Individual specialisations Gentoo penguins Foraging behaviour Behavioural consistency · Diving behaviour · Feeding ecology Pygoscelis papua Stable isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience Individual specialisations have been suggested to improve foraging efficiency by optimising individual capacity (physiological and behavioural) and reducing intra-specific competition in exploiting prey resources. In this study we investigated the inter- and intra-individual variation in behaviour in an opportunistic forager, the Gentoo penguin (Pygoscelis papua), at Kerguelen Island, southern Indian Ocean. We used complementary bio-logging and stable isotope analyses, coupled with morphometric measurements, to: 1) determine the inter-individual variation in morphology and foraging behaviour; 2) quantify intra-individual variation in foraging behaviour; 3) investigate the links between consistency in foraging, distances travelled and body condition; and 4) determine if dietary specialisations exist and are maintained outside the breeding season. We show that this species exhibits a large inter-individual variation in foraging behaviour with some individuals conducting very short trips close to the colony while others travelled considerably further. Heavier individuals tended to forage in more distant locations, dive deeper and perform more benthic dives. Individual specialisation in behaviour was low to moderate at the population level, yet some individuals were very consistent. The rate of travel was not influenced by consistency, and there was a lack of correlation between body condition and foraging consistency. High inter-individual variation in feeding ecology and dietary specialisations outside of a single breeding season were observed, consistent with Gentoo penguins being Type “B” generalists (i.e. generalist populations composed of individuals each consuming a different range of foods). |
author2 |
School of Life and Environmental Sciences Deakin University Burwood Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Camprasse, Elodie, Cherel, Yves Bustamante, Paco Arnould, John, Bost, Charles-André |
author_facet |
Camprasse, Elodie, Cherel, Yves Bustamante, Paco Arnould, John, Bost, Charles-André |
author_sort |
Camprasse, Elodie, |
title |
Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin |
title_short |
Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin |
title_full |
Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin |
title_fullStr |
Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin |
title_full_unstemmed |
Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin |
title_sort |
intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01620252 https://hal.science/hal-01620252/document https://hal.science/hal-01620252/file/Camprasse%20et%20al%202017%20MEPS.pdf https://doi.org/10.3354/meps12151 |
long_lat |
ENVELOPE(69.500,69.500,-49.250,-49.250) |
geographic |
Kerguelen Indian Kerguelen Island |
geographic_facet |
Kerguelen Indian Kerguelen Island |
genre |
Gentoo penguin Pygoscelis papua |
genre_facet |
Gentoo penguin Pygoscelis papua |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-01620252 Marine Ecology Progress Series, 2017, 578, pp.227 - 242. ⟨10.3354/meps12151⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps12151 hal-01620252 https://hal.science/hal-01620252 https://hal.science/hal-01620252/document https://hal.science/hal-01620252/file/Camprasse%20et%20al%202017%20MEPS.pdf doi:10.3354/meps12151 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps12151 |
container_title |
Marine Ecology Progress Series |
container_volume |
578 |
container_start_page |
227 |
op_container_end_page |
242 |
_version_ |
1766006020611506176 |