Variation in the age of first reproduction: different strategies or individual quality?
International audience Although age at first reproduction is a key demographic parameter which is probably under high selective pressure, it is highly variable and the cause of this variability is not well understood. Two non-exclusive hypotheses may explain such variability. It could be the express...
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Online Access: | https://hal.archives-ouvertes.fr/hal-01329451 https://doi.org/10.1890/15-1485.1 |
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ftunivnantes:oai:HAL:hal-01329451v1 2023-05-15T18:43:02+02:00 Variation in the age of first reproduction: different strategies or individual quality? Fay, Rémi Barbraud, Christophe Delord, Karine Weimerskirch, Henri 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) 2016 https://hal.archives-ouvertes.fr/hal-01329451 https://doi.org/10.1890/15-1485.1 en eng HAL CCSD Ecological Society of America info:eu-repo/semantics/altIdentifier/doi/10.1890/15-1485.1 hal-01329451 https://hal.archives-ouvertes.fr/hal-01329451 doi:10.1890/15-1485.1 PUBMEDCENTRAL: PMC6681017 ISSN: 0012-9658 Ecology https://hal.archives-ouvertes.fr/hal-01329451 Ecology, 2016, 97 (7), pp.1842-1851. ⟨10.1890/15-1485.1⟩ reaction norm individual heterogeneity trade-off wandering albatross life-history plasticity capturemark- recapture [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2016 ftunivnantes https://doi.org/10.1890/15-1485.1 2023-01-04T00:07:10Z International audience Although age at first reproduction is a key demographic parameter which is probably under high selective pressure, it is highly variable and the cause of this variability is not well understood. Two non-exclusive hypotheses may explain such variability. It could be the expression of different individual strategies, i.e. different allocation strategies in fitness components, or the consequences of individual difference in intrinsic quality, i.e. some individuals always doing better than others in all fitness components. We tested these hypotheses in the Wandering albatross investigating relationships between the age at first reproduction and subsequent adult demographic traits. Using finite mixture capture recapture modeling, we demonstrate that the age at first reproduction is negatively related to both reproductive performances and adult survival, suggesting that individual quality was an important factor explaining variation in the age at first reproduction. Our results suggest that age at first breeding is a good predictor of quality in this long-lived seabird species. Article in Journal/Newspaper Wandering Albatross Université de Nantes: HAL-UNIV-NANTES Ecology 97 7 1842 1851 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
reaction norm individual heterogeneity trade-off wandering albatross life-history plasticity capturemark- recapture [SDE]Environmental Sciences |
spellingShingle |
reaction norm individual heterogeneity trade-off wandering albatross life-history plasticity capturemark- recapture [SDE]Environmental Sciences Fay, Rémi Barbraud, Christophe Delord, Karine Weimerskirch, Henri Variation in the age of first reproduction: different strategies or individual quality? |
topic_facet |
reaction norm individual heterogeneity trade-off wandering albatross life-history plasticity capturemark- recapture [SDE]Environmental Sciences |
description |
International audience Although age at first reproduction is a key demographic parameter which is probably under high selective pressure, it is highly variable and the cause of this variability is not well understood. Two non-exclusive hypotheses may explain such variability. It could be the expression of different individual strategies, i.e. different allocation strategies in fitness components, or the consequences of individual difference in intrinsic quality, i.e. some individuals always doing better than others in all fitness components. We tested these hypotheses in the Wandering albatross investigating relationships between the age at first reproduction and subsequent adult demographic traits. Using finite mixture capture recapture modeling, we demonstrate that the age at first reproduction is negatively related to both reproductive performances and adult survival, suggesting that individual quality was an important factor explaining variation in the age at first reproduction. Our results suggest that age at first breeding is a good predictor of quality in this long-lived seabird species. |
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) |
format |
Article in Journal/Newspaper |
author |
Fay, Rémi Barbraud, Christophe Delord, Karine Weimerskirch, Henri |
author_facet |
Fay, Rémi Barbraud, Christophe Delord, Karine Weimerskirch, Henri |
author_sort |
Fay, Rémi |
title |
Variation in the age of first reproduction: different strategies or individual quality? |
title_short |
Variation in the age of first reproduction: different strategies or individual quality? |
title_full |
Variation in the age of first reproduction: different strategies or individual quality? |
title_fullStr |
Variation in the age of first reproduction: different strategies or individual quality? |
title_full_unstemmed |
Variation in the age of first reproduction: different strategies or individual quality? |
title_sort |
variation in the age of first reproduction: different strategies or individual quality? |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.archives-ouvertes.fr/hal-01329451 https://doi.org/10.1890/15-1485.1 |
genre |
Wandering Albatross |
genre_facet |
Wandering Albatross |
op_source |
ISSN: 0012-9658 Ecology https://hal.archives-ouvertes.fr/hal-01329451 Ecology, 2016, 97 (7), pp.1842-1851. ⟨10.1890/15-1485.1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1890/15-1485.1 hal-01329451 https://hal.archives-ouvertes.fr/hal-01329451 doi:10.1890/15-1485.1 PUBMEDCENTRAL: PMC6681017 |
op_doi |
https://doi.org/10.1890/15-1485.1 |
container_title |
Ecology |
container_volume |
97 |
container_issue |
7 |
container_start_page |
1842 |
op_container_end_page |
1851 |
_version_ |
1766232821167292416 |