Females better face senescence in the wandering albatross
International audience ex differences in lifespan and aging are widespread among animals. Since investment in current reproduction can have consequences on other life-history traits, the sex with the highest cost of breeding is expected to suffer from an earlier and/or stronger senescence. This has...
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Online Access: | https://hal.science/hal-00831082 https://doi.org/10.1007/s00442-013-2704-x |
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ftunivnantes:oai:HAL:hal-00831082v1 2023-05-15T16:00:55+02:00 Females better face senescence in the wandering albatross Pardo, Deborah Barbraud, Christophe Weimerskirch, Henri Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2013 https://hal.science/hal-00831082 https://doi.org/10.1007/s00442-013-2704-x en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-013-2704-x hal-00831082 https://hal.science/hal-00831082 doi:10.1007/s00442-013-2704-x ISSN: 0029-8549 EISSN: 1432-1939 Oecologia https://hal.science/hal-00831082 Oecologia, 2013, 173, pp.1283-1294. ⟨10.1007/s00442-013-2704-x⟩ Breeding success Breeding probability Capture-mark-recapture Diomedea exulans Seabird Senescence Sexual dimorphism Survival [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2013 ftunivnantes https://doi.org/10.1007/s00442-013-2704-x 2023-02-08T00:10:12Z International audience ex differences in lifespan and aging are widespread among animals. Since investment in current reproduction can have consequences on other life-history traits, the sex with the highest cost of breeding is expected to suffer from an earlier and/or stronger senescence. This has been demonstrated in polygynous species that are highly dimorphic. However in monogamous species where parental investment is similar between sexes, sex-specific differences in aging patterns of life-history traits are expected to be attenuated. Here, we examined sex and age influences on demographic traits in a very long-lived and sexually dimorphic monogamous species, the wandering albatross (Diomedea exulans). We modelled within the same model framework sex-dependent variations in aging for an array of five life-history traits: adult survival, probability of returning to the breeding colony, probability of breeding and two measures of breeding success (hatching and fledging). We show that life-history traits presented contrasted aging patterns according to sex whereas traits were all similar at young ages. Both sexes exhibited actuarial and reproductive senescence, but, as the decrease in breeding success remained similar for males and females, the survival and breeding probabilities of males were significantly more affected than females. We discuss our results in the light of the costs associated to reproduction, age-related pairing and a biased operational sex-ratio in the population leading to a pool of non-breeders of potentially lower quality and therefore more subject to death or breeding abstention. For a monogamous species with similar parental roles, the patterns observed were surprising and when placed in a gradient of observed age/sex-related variations in lifehistory traits, wandering albatrosses were intermediate between highly dimorphic polygynous and most monogamous species. Article in Journal/Newspaper Diomedea exulans Wandering Albatross Université de Nantes: HAL-UNIV-NANTES Oecologia 173 4 1283 1294 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Breeding success Breeding probability Capture-mark-recapture Diomedea exulans Seabird Senescence Sexual dimorphism Survival [SDE]Environmental Sciences |
spellingShingle |
Breeding success Breeding probability Capture-mark-recapture Diomedea exulans Seabird Senescence Sexual dimorphism Survival [SDE]Environmental Sciences Pardo, Deborah Barbraud, Christophe Weimerskirch, Henri Females better face senescence in the wandering albatross |
topic_facet |
Breeding success Breeding probability Capture-mark-recapture Diomedea exulans Seabird Senescence Sexual dimorphism Survival [SDE]Environmental Sciences |
description |
International audience ex differences in lifespan and aging are widespread among animals. Since investment in current reproduction can have consequences on other life-history traits, the sex with the highest cost of breeding is expected to suffer from an earlier and/or stronger senescence. This has been demonstrated in polygynous species that are highly dimorphic. However in monogamous species where parental investment is similar between sexes, sex-specific differences in aging patterns of life-history traits are expected to be attenuated. Here, we examined sex and age influences on demographic traits in a very long-lived and sexually dimorphic monogamous species, the wandering albatross (Diomedea exulans). We modelled within the same model framework sex-dependent variations in aging for an array of five life-history traits: adult survival, probability of returning to the breeding colony, probability of breeding and two measures of breeding success (hatching and fledging). We show that life-history traits presented contrasted aging patterns according to sex whereas traits were all similar at young ages. Both sexes exhibited actuarial and reproductive senescence, but, as the decrease in breeding success remained similar for males and females, the survival and breeding probabilities of males were significantly more affected than females. We discuss our results in the light of the costs associated to reproduction, age-related pairing and a biased operational sex-ratio in the population leading to a pool of non-breeders of potentially lower quality and therefore more subject to death or breeding abstention. For a monogamous species with similar parental roles, the patterns observed were surprising and when placed in a gradient of observed age/sex-related variations in lifehistory traits, wandering albatrosses were intermediate between highly dimorphic polygynous and most monogamous species. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Pardo, Deborah Barbraud, Christophe Weimerskirch, Henri |
author_facet |
Pardo, Deborah Barbraud, Christophe Weimerskirch, Henri |
author_sort |
Pardo, Deborah |
title |
Females better face senescence in the wandering albatross |
title_short |
Females better face senescence in the wandering albatross |
title_full |
Females better face senescence in the wandering albatross |
title_fullStr |
Females better face senescence in the wandering albatross |
title_full_unstemmed |
Females better face senescence in the wandering albatross |
title_sort |
females better face senescence in the wandering albatross |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00831082 https://doi.org/10.1007/s00442-013-2704-x |
genre |
Diomedea exulans Wandering Albatross |
genre_facet |
Diomedea exulans Wandering Albatross |
op_source |
ISSN: 0029-8549 EISSN: 1432-1939 Oecologia https://hal.science/hal-00831082 Oecologia, 2013, 173, pp.1283-1294. ⟨10.1007/s00442-013-2704-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-013-2704-x hal-00831082 https://hal.science/hal-00831082 doi:10.1007/s00442-013-2704-x |
op_doi |
https://doi.org/10.1007/s00442-013-2704-x |
container_title |
Oecologia |
container_volume |
173 |
container_issue |
4 |
container_start_page |
1283 |
op_container_end_page |
1294 |
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1766396925293101056 |