Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands
International audience Changes in the foraging environment and at-sea distribution of southern elephant seals from Kerguelen Islands were investigated over a decade (2004–2018) using tracking, weaning mass, and blood δ13C values. Females showed either a sub-Antarctic or an Antarctic foraging strateg...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-02928065 https://doi.org/10.1098/rspb.2020.1544 |
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ftccsdartic:oai:HAL:hal-02928065v1 |
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institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
foraging habitat stable isotopes bio-logging population strategies decadal change Indian sector of the Southern Ocean [SDE]Environmental Sciences |
spellingShingle |
foraging habitat stable isotopes bio-logging population strategies decadal change Indian sector of the Southern Ocean [SDE]Environmental Sciences Mestre, Julie Authier, Matthieu Cherel, Yves Harcourt, Robert McMahon, Clive A. Hindell, Mark A. Charrassin, Jean-Benoît Guinet, Christophe Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands |
topic_facet |
foraging habitat stable isotopes bio-logging population strategies decadal change Indian sector of the Southern Ocean [SDE]Environmental Sciences |
description |
International audience Changes in the foraging environment and at-sea distribution of southern elephant seals from Kerguelen Islands were investigated over a decade (2004–2018) using tracking, weaning mass, and blood δ13C values. Females showed either a sub-Antarctic or an Antarctic foraging strategy, and no significant shift in their at-sea distribution was detected between 2004 and 2017. The proportion of females foraging in sub-Antarctic versus Antarctic habitats did not change over the 2006–2018 period. Pup weaning mass varied according to the foraging habitat of their mothers. The weaning mass of sub-Antarctic foraging mothers’ pups decreased by 11.7 kg over the study period, but they were on average 5.8 kg heavier than pups from Antarctic foraging mothers. Pup blood δ13C values decreased by 1.1‰ over the study period regardless of their sex and the presumed foraging habitat of their mothers. Together, these results suggest an ecological change is occurring within the Indian sector of the Southern Ocean with possible consequences on the foraging performance of southern elephant seals. We hypothesize that this shift in δ13C is related to a change in primary production and/or in the composition of phytoplankton communities, but this requires further multidisciplinary investigations. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ADERA PESSAC FRA Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Macquarie University Sydney Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Couplage physique-biogéochimie-carbone (PHYBIOCAR) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Mestre, Julie Authier, Matthieu Cherel, Yves Harcourt, Robert McMahon, Clive A. Hindell, Mark A. Charrassin, Jean-Benoît Guinet, Christophe |
author_facet |
Mestre, Julie Authier, Matthieu Cherel, Yves Harcourt, Robert McMahon, Clive A. Hindell, Mark A. Charrassin, Jean-Benoît Guinet, Christophe |
author_sort |
Mestre, Julie |
title |
Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands |
title_short |
Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands |
title_full |
Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands |
title_fullStr |
Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands |
title_full_unstemmed |
Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands |
title_sort |
decadal changes in blood δ 13 c values, at-sea distribution, and weaning mass of southern elephant seals from kerguelen islands |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.archives-ouvertes.fr/hal-02928065 https://doi.org/10.1098/rspb.2020.1544 |
geographic |
Antarctic Indian Kerguelen Kerguelen Islands Southern Ocean |
geographic_facet |
Antarctic Indian Kerguelen Kerguelen Islands Southern Ocean |
genre |
Antarc* Antarctic Elephant Seals Kerguelen Islands Southern Elephant Seals Southern Ocean |
genre_facet |
Antarc* Antarctic Elephant Seals Kerguelen Islands Southern Elephant Seals Southern Ocean |
op_source |
ISSN: 0962-8452 EISSN: 1471-2954 Proceedings of the Royal Society B: Biological Sciences https://hal.archives-ouvertes.fr/hal-02928065 Proceedings of the Royal Society B: Biological Sciences, Royal Society, The, 2020, 287 (1933), pp.20201544. ⟨10.1098/rspb.2020.1544⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2020.1544 hal-02928065 https://hal.archives-ouvertes.fr/hal-02928065 doi:10.1098/rspb.2020.1544 WOS: 000563925900003 |
op_doi |
https://doi.org/10.1098/rspb.2020.1544 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
287 |
container_issue |
1933 |
container_start_page |
20201544 |
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1766185872060841984 |
spelling |
ftccsdartic:oai:HAL:hal-02928065v1 2023-05-15T13:43:12+02:00 Decadal changes in blood δ 13 C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands Mestre, Julie Authier, Matthieu Cherel, Yves Harcourt, Robert McMahon, Clive A. Hindell, Mark A. Charrassin, Jean-Benoît Guinet, Christophe Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ADERA PESSAC FRA Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Macquarie University Sydney Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Couplage physique-biogéochimie-carbone (PHYBIOCAR) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2020-08-26 https://hal.archives-ouvertes.fr/hal-02928065 https://doi.org/10.1098/rspb.2020.1544 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2020.1544 hal-02928065 https://hal.archives-ouvertes.fr/hal-02928065 doi:10.1098/rspb.2020.1544 WOS: 000563925900003 ISSN: 0962-8452 EISSN: 1471-2954 Proceedings of the Royal Society B: Biological Sciences https://hal.archives-ouvertes.fr/hal-02928065 Proceedings of the Royal Society B: Biological Sciences, Royal Society, The, 2020, 287 (1933), pp.20201544. ⟨10.1098/rspb.2020.1544⟩ foraging habitat stable isotopes bio-logging population strategies decadal change Indian sector of the Southern Ocean [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftccsdartic https://doi.org/10.1098/rspb.2020.1544 2021-12-05T01:05:49Z International audience Changes in the foraging environment and at-sea distribution of southern elephant seals from Kerguelen Islands were investigated over a decade (2004–2018) using tracking, weaning mass, and blood δ13C values. Females showed either a sub-Antarctic or an Antarctic foraging strategy, and no significant shift in their at-sea distribution was detected between 2004 and 2017. The proportion of females foraging in sub-Antarctic versus Antarctic habitats did not change over the 2006–2018 period. Pup weaning mass varied according to the foraging habitat of their mothers. The weaning mass of sub-Antarctic foraging mothers’ pups decreased by 11.7 kg over the study period, but they were on average 5.8 kg heavier than pups from Antarctic foraging mothers. Pup blood δ13C values decreased by 1.1‰ over the study period regardless of their sex and the presumed foraging habitat of their mothers. Together, these results suggest an ecological change is occurring within the Indian sector of the Southern Ocean with possible consequences on the foraging performance of southern elephant seals. We hypothesize that this shift in δ13C is related to a change in primary production and/or in the composition of phytoplankton communities, but this requires further multidisciplinary investigations. Article in Journal/Newspaper Antarc* Antarctic Elephant Seals Kerguelen Islands Southern Elephant Seals Southern Ocean Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Indian Kerguelen Kerguelen Islands Southern Ocean Proceedings of the Royal Society B: Biological Sciences 287 1933 20201544 |