Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals.
International audience Identifying individual factors affecting life-span has long been of interest for biologists and demographers: how do some individuals manage to dodge the forces of mortality when the vast majority does not? Answering this question is not straightforward, partly because of the...
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Online Access: | https://hal.science/hal-00688779 https://hal.science/hal-00688779/document https://hal.science/hal-00688779/file/pone.0032026.pdf https://doi.org/10.1371/journal.pone.0032026 |
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ftsupagro:oai:HAL:hal-00688779v1 2024-09-15T18:04:39+00:00 Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. Authier, Matthieu Bentaleb, Ilham Ponchon, Aurore Martin, Céline Guinet, Christophe Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) 2012 https://hal.science/hal-00688779 https://hal.science/hal-00688779/document https://hal.science/hal-00688779/file/pone.0032026.pdf https://doi.org/10.1371/journal.pone.0032026 en eng HAL CCSD Public Library of Science info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0032026 info:eu-repo/semantics/altIdentifier/pmid/22505993 hal-00688779 https://hal.science/hal-00688779 https://hal.science/hal-00688779/document https://hal.science/hal-00688779/file/pone.0032026.pdf doi:10.1371/journal.pone.0032026 PUBMED: 22505993 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://hal.science/hal-00688779 PLoS ONE, 2012, 7 (4), pp.e32026. ⟨10.1371/journal.pone.0032026⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2012 ftsupagro https://doi.org/10.1371/journal.pone.0032026 2024-07-10T23:30:45Z International audience Identifying individual factors affecting life-span has long been of interest for biologists and demographers: how do some individuals manage to dodge the forces of mortality when the vast majority does not? Answering this question is not straightforward, partly because of the arduous task of accurately estimating longevity in wild animals, and of the statistical difficulties in correlating time-varying ecological covariables with a single number (time-to-event). Here we investigated the relationship between foraging strategy and life-span in an elusive and large marine predator: the Southern Elephant Seal (Mirounga leonina). Using teeth recovered from dead males on îles Kerguelen, Southern Ocean, we first aged specimens. Then we used stable isotopic measurements of carbon ([Formula: see text]) in dentin to study the effect of foraging location on individual life-span. Using a joint change-point/survival modelling approach which enabled us to describe the ontogenetic trajectory of foraging, we unveiled how a stable foraging strategy developed early in life positively covaried with longevity in male Southern Elephant Seals. Coupled with an appropriate statistical analysis, stable isotopes have the potential to tackle ecological questions of long standing interest but whose answer has been hampered by logistic constraints. Article in Journal/Newspaper Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean Portail HAL Institut Agro Montpellier PLoS ONE 7 4 e32026 |
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Portail HAL Institut Agro Montpellier |
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English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Authier, Matthieu Bentaleb, Ilham Ponchon, Aurore Martin, Céline Guinet, Christophe Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Identifying individual factors affecting life-span has long been of interest for biologists and demographers: how do some individuals manage to dodge the forces of mortality when the vast majority does not? Answering this question is not straightforward, partly because of the arduous task of accurately estimating longevity in wild animals, and of the statistical difficulties in correlating time-varying ecological covariables with a single number (time-to-event). Here we investigated the relationship between foraging strategy and life-span in an elusive and large marine predator: the Southern Elephant Seal (Mirounga leonina). Using teeth recovered from dead males on îles Kerguelen, Southern Ocean, we first aged specimens. Then we used stable isotopic measurements of carbon ([Formula: see text]) in dentin to study the effect of foraging location on individual life-span. Using a joint change-point/survival modelling approach which enabled us to describe the ontogenetic trajectory of foraging, we unveiled how a stable foraging strategy developed early in life positively covaried with longevity in male Southern Elephant Seals. Coupled with an appropriate statistical analysis, stable isotopes have the potential to tackle ecological questions of long standing interest but whose answer has been hampered by logistic constraints. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) |
format |
Article in Journal/Newspaper |
author |
Authier, Matthieu Bentaleb, Ilham Ponchon, Aurore Martin, Céline Guinet, Christophe |
author_facet |
Authier, Matthieu Bentaleb, Ilham Ponchon, Aurore Martin, Céline Guinet, Christophe |
author_sort |
Authier, Matthieu |
title |
Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. |
title_short |
Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. |
title_full |
Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. |
title_fullStr |
Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. |
title_full_unstemmed |
Foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. |
title_sort |
foraging fidelity as a recipe for a long life: foraging strategy and longevity in male southern elephant seals. |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00688779 https://hal.science/hal-00688779/document https://hal.science/hal-00688779/file/pone.0032026.pdf https://doi.org/10.1371/journal.pone.0032026 |
genre |
Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean |
genre_facet |
Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean |
op_source |
ISSN: 1932-6203 EISSN: 1932-6203 PLoS ONE https://hal.science/hal-00688779 PLoS ONE, 2012, 7 (4), pp.e32026. ⟨10.1371/journal.pone.0032026⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0032026 info:eu-repo/semantics/altIdentifier/pmid/22505993 hal-00688779 https://hal.science/hal-00688779 https://hal.science/hal-00688779/document https://hal.science/hal-00688779/file/pone.0032026.pdf doi:10.1371/journal.pone.0032026 PUBMED: 22505993 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0032026 |
container_title |
PLoS ONE |
container_volume |
7 |
container_issue |
4 |
container_start_page |
e32026 |
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1810442267194818560 |