The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season
Spécialités : Biologie de l’Environnement, des Populations, Écologie A central question in ecology is the understanding of the environmental change effects on organisms and on the ecosystem functioning. The Arctic and Antarctic warm faster than any other region on Earth, which has consequences on th...
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Language: | French |
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2020
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Online Access: | https://hal.archives-ouvertes.fr/tel-03182132 https://hal.archives-ouvertes.fr/tel-03182132/document https://hal.archives-ouvertes.fr/tel-03182132/file/MICHELOT_Candice_these.pdf |
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ftunivnantes:oai:HAL:tel-03182132v1 2023-05-15T13:44:26+02:00 The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season Le manchot Adélie, sentinelle de la glace de mer : étude du comportement de recherche alimentaire en réponse aux variations environnementales en période de reproduction Michelot, Candice 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) Université La Rochelle Yan Ropert-Coudert Akiko Kato 2020-09-18 https://hal.archives-ouvertes.fr/tel-03182132 https://hal.archives-ouvertes.fr/tel-03182132/document https://hal.archives-ouvertes.fr/tel-03182132/file/MICHELOT_Candice_these.pdf fr fre HAL CCSD tel-03182132 https://hal.archives-ouvertes.fr/tel-03182132 https://hal.archives-ouvertes.fr/tel-03182132/document https://hal.archives-ouvertes.fr/tel-03182132/file/MICHELOT_Candice_these.pdf info:eu-repo/semantics/OpenAccess https://hal.archives-ouvertes.fr/tel-03182132 Sciences de l'environnement. Université La Rochelle, 2020. Français. ⟨NNT : ⟩ Adélie penguins sea ice bio-logging foraging activity sentinel species East Antarctica MPA manchots Adélie glace de mer activité alimentaire espèce sentinelle Antarctique de l’Est AMP [SDE]Environmental Sciences info:eu-repo/semantics/doctoralThesis Theses 2020 ftunivnantes 2023-01-03T23:58:45Z Spécialités : Biologie de l’Environnement, des Populations, Écologie A central question in ecology is the understanding of the environmental change effects on organisms and on the ecosystem functioning. The Arctic and Antarctic warm faster than any other region on Earth, which has consequences on the sea-ice state and by extent on polar species which depend on it for their breeding and feeding activities.The main objective of my PhD was to determine the behavioural responses of a bio-indicator species, the Adélie penguin, during its foraging activity facing variable sea-ice conditions, at different species levels: individual, population, inter-population. We use a foraging activity dataset (GPS data, diet) on Adélie penguins obtained collected each year since 2010 in Terre Adélie (East Antarctica), at each breeding season in several colonies.We highlight foraging behavioural variations in that species related to sea-ice conditions and dynamics, but similar responses between individuals and between colonies facing comparable environmental conditions. Our results highlight the importance of specific habitats and sea-ice conditions for an optimal foraging activity. We discuss about intrinsic and extrinsic factors at the origin of the observed variations, and of the implication of such variations on the reproductive behaviour of Adélie penguins. Those PhD results are replaced in a context of ecosystem conservation for the implementation of efficient protection measures based on the ecology of sentinel species. Une question centrale en écologie est la compréhension des effets des changements environnementaux sur les organismes et sur le fonctionnement des écosystèmes. L’Arctique et l’Antarctique se réchauffent plus rapidement que n’importe quelle autre région sur la planète, ce qui a des conséquences sur l’état de la glace de mer et par extension sur les espèces polaires qui en dépendent pour leur activité d’alimentation et de reproduction.L’objectif principal de cette thèse est de déterminer les réponses ... Doctoral or Postdoctoral Thesis Antarc* Antarctic Antarctica Antarctique* Arctic East Antarctica Sea ice Université de Nantes: HAL-UNIV-NANTES Antarctic Arctic East Antarctica Manchot ENVELOPE(141.400,141.400,-66.817,-66.817) Manchots ENVELOPE(141.397,141.397,-66.811,-66.811) Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
French |
topic |
Adélie penguins sea ice bio-logging foraging activity sentinel species East Antarctica MPA manchots Adélie glace de mer activité alimentaire espèce sentinelle Antarctique de l’Est AMP [SDE]Environmental Sciences |
spellingShingle |
Adélie penguins sea ice bio-logging foraging activity sentinel species East Antarctica MPA manchots Adélie glace de mer activité alimentaire espèce sentinelle Antarctique de l’Est AMP [SDE]Environmental Sciences Michelot, Candice The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season |
topic_facet |
Adélie penguins sea ice bio-logging foraging activity sentinel species East Antarctica MPA manchots Adélie glace de mer activité alimentaire espèce sentinelle Antarctique de l’Est AMP [SDE]Environmental Sciences |
description |
Spécialités : Biologie de l’Environnement, des Populations, Écologie A central question in ecology is the understanding of the environmental change effects on organisms and on the ecosystem functioning. The Arctic and Antarctic warm faster than any other region on Earth, which has consequences on the sea-ice state and by extent on polar species which depend on it for their breeding and feeding activities.The main objective of my PhD was to determine the behavioural responses of a bio-indicator species, the Adélie penguin, during its foraging activity facing variable sea-ice conditions, at different species levels: individual, population, inter-population. We use a foraging activity dataset (GPS data, diet) on Adélie penguins obtained collected each year since 2010 in Terre Adélie (East Antarctica), at each breeding season in several colonies.We highlight foraging behavioural variations in that species related to sea-ice conditions and dynamics, but similar responses between individuals and between colonies facing comparable environmental conditions. Our results highlight the importance of specific habitats and sea-ice conditions for an optimal foraging activity. We discuss about intrinsic and extrinsic factors at the origin of the observed variations, and of the implication of such variations on the reproductive behaviour of Adélie penguins. Those PhD results are replaced in a context of ecosystem conservation for the implementation of efficient protection measures based on the ecology of sentinel species. Une question centrale en écologie est la compréhension des effets des changements environnementaux sur les organismes et sur le fonctionnement des écosystèmes. L’Arctique et l’Antarctique se réchauffent plus rapidement que n’importe quelle autre région sur la planète, ce qui a des conséquences sur l’état de la glace de mer et par extension sur les espèces polaires qui en dépendent pour leur activité d’alimentation et de reproduction.L’objectif principal de cette thèse est de déterminer les réponses ... |
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) Université La Rochelle Yan Ropert-Coudert Akiko Kato |
format |
Doctoral or Postdoctoral Thesis |
author |
Michelot, Candice |
author_facet |
Michelot, Candice |
author_sort |
Michelot, Candice |
title |
The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season |
title_short |
The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season |
title_full |
The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season |
title_fullStr |
The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season |
title_full_unstemmed |
The Adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season |
title_sort |
adélie penguin, sentinel of the sea-ice : study of the foraging behaviour in response to environmental variations during the breeding season |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.archives-ouvertes.fr/tel-03182132 https://hal.archives-ouvertes.fr/tel-03182132/document https://hal.archives-ouvertes.fr/tel-03182132/file/MICHELOT_Candice_these.pdf |
long_lat |
ENVELOPE(141.400,141.400,-66.817,-66.817) ENVELOPE(141.397,141.397,-66.811,-66.811) ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) |
geographic |
Antarctic Arctic East Antarctica Manchot Manchots Terre Adélie Terre-Adélie |
geographic_facet |
Antarctic Arctic East Antarctica Manchot Manchots Terre Adélie Terre-Adélie |
genre |
Antarc* Antarctic Antarctica Antarctique* Arctic East Antarctica Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Antarctique* Arctic East Antarctica Sea ice |
op_source |
https://hal.archives-ouvertes.fr/tel-03182132 Sciences de l'environnement. Université La Rochelle, 2020. Français. ⟨NNT : ⟩ |
op_relation |
tel-03182132 https://hal.archives-ouvertes.fr/tel-03182132 https://hal.archives-ouvertes.fr/tel-03182132/document https://hal.archives-ouvertes.fr/tel-03182132/file/MICHELOT_Candice_these.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766201512237727744 |