Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago
International audience Coastal seabirds are bound to be dependent on local marine resources. We hypothesize that the localization of the breeding colony will influence the foraging patterns of such predators. The foraging behavior of gentoo penguins Pygoscelis papua was investigated in contrasting m...
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ftunivnantes:oai:HAL:hal-00188221v1 2023-05-15T16:19:36+02:00 Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago Lescroel, Amélie Bost, Charles-André Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2005 https://hal.science/hal-00188221 https://doi.org/10.3354/meps302245 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps302245 hal-00188221 https://hal.science/hal-00188221 doi:10.3354/meps302245 ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00188221 Marine Ecology Progress Series, 2005, 302, pp.245-261. ⟨10.3354/meps302245⟩ Pygoscelis papua Foraging strategy Diving behavior At-sea distribution Behavioural plasticity Geographic variation Prey availability Marine predator [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 2005 ftunivnantes https://doi.org/10.3354/meps302245 2023-02-08T08:21:30Z International audience Coastal seabirds are bound to be dependent on local marine resources. We hypothesize that the localization of the breeding colony will influence the foraging patterns of such predators. The foraging behavior of gentoo penguins Pygoscelis papua was investigated in contrasting marine environments at Kerguelen Archipelago over the 2002–03 and 2003–04 breeding seasons. Using timedepth recorders (TDRs) and satellite transmitters, we describe the at-sea distribution and diving behavior of gentoo penguins breeding in 2 colonies facing the open sea (Open Sea 1 and Open Sea 2) and 1 colony protected in a closed bay (Closed Sea). The foraging behavior varies extensively across the Kerguelen Archipelago, almost as much as it does over the entire range of the species. Different foraging strategies emerge, depending on the local conditions: large foraging ranges, long trips, long benthic dives on demersal fish at Open Sea colonies versus small foraging ranges, short trips, short pelagic dives on swarming crustaceans at Closed Sea, for a same foraging effort. The diving behavior of the gentoo penguin therefore varies as a function of the locality and the site, closely related to prey availability. This study demonstrates the importance of foraging plasticity as a fundamental aspect of life history in coastal marine predators. Article in Journal/Newspaper Gentoo penguin Pygoscelis papua Université de Nantes: HAL-UNIV-NANTES Kerguelen Marine Ecology Progress Series 302 245 261 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Pygoscelis papua Foraging strategy Diving behavior At-sea distribution Behavioural plasticity Geographic variation Prey availability Marine predator [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Pygoscelis papua Foraging strategy Diving behavior At-sea distribution Behavioural plasticity Geographic variation Prey availability Marine predator [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes Lescroel, Amélie Bost, Charles-André Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago |
topic_facet |
Pygoscelis papua Foraging strategy Diving behavior At-sea distribution Behavioural plasticity Geographic variation Prey availability Marine predator [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Coastal seabirds are bound to be dependent on local marine resources. We hypothesize that the localization of the breeding colony will influence the foraging patterns of such predators. The foraging behavior of gentoo penguins Pygoscelis papua was investigated in contrasting marine environments at Kerguelen Archipelago over the 2002–03 and 2003–04 breeding seasons. Using timedepth recorders (TDRs) and satellite transmitters, we describe the at-sea distribution and diving behavior of gentoo penguins breeding in 2 colonies facing the open sea (Open Sea 1 and Open Sea 2) and 1 colony protected in a closed bay (Closed Sea). The foraging behavior varies extensively across the Kerguelen Archipelago, almost as much as it does over the entire range of the species. Different foraging strategies emerge, depending on the local conditions: large foraging ranges, long trips, long benthic dives on demersal fish at Open Sea colonies versus small foraging ranges, short trips, short pelagic dives on swarming crustaceans at Closed Sea, for a same foraging effort. The diving behavior of the gentoo penguin therefore varies as a function of the locality and the site, closely related to prey availability. This study demonstrates the importance of foraging plasticity as a fundamental aspect of life history in coastal marine predators. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Lescroel, Amélie Bost, Charles-André |
author_facet |
Lescroel, Amélie Bost, Charles-André |
author_sort |
Lescroel, Amélie |
title |
Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago |
title_short |
Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago |
title_full |
Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago |
title_fullStr |
Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago |
title_full_unstemmed |
Foraging under contrasting oceanographic conditions: the gentoo penguin at Kerguelen Archipelago |
title_sort |
foraging under contrasting oceanographic conditions: the gentoo penguin at kerguelen archipelago |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00188221 https://doi.org/10.3354/meps302245 |
geographic |
Kerguelen |
geographic_facet |
Kerguelen |
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-00188221 Marine Ecology Progress Series, 2005, 302, pp.245-261. ⟨10.3354/meps302245⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps302245 hal-00188221 https://hal.science/hal-00188221 doi:10.3354/meps302245 |
op_doi |
https://doi.org/10.3354/meps302245 |
container_title |
Marine Ecology Progress Series |
container_volume |
302 |
container_start_page |
245 |
op_container_end_page |
261 |
_version_ |
1766006017833828352 |