Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits
International audience Theoretical and empirical studies have highlighted the effects of age on several life-history traits in wild populations. There is also increasing evidence for environmental effects on their demographic traits. However, quantifying how individuals differentially respond to env...
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Format: | Article in Journal/Newspaper |
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Online Access: | https://doi.org/10.1890/12-0215.1 https://hal.archives-ouvertes.fr/hal-00722890 |
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fttriple:oai:gotriple.eu:10670/1.hv4k5a 2023-05-15T17:02:08+02:00 Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits Pardo, Déborah Barbraud, Christophe Authier, Matthieu Weimerskirch, Henri Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2013-01-01 https://doi.org/10.1890/12-0215.1 https://hal.archives-ouvertes.fr/hal-00722890 en eng HAL CCSD Ecological Society of America hal-00722890 doi:10.1890/12-0215.1 10670/1.hv4k5a https://hal.archives-ouvertes.fr/hal-00722890 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0012-9658 Ecology Ecology, Ecological Society of America, 2013, 94 (1), pp.208-220. ⟨10.1890/12-0215.1⟩ Black-browed Albatross breeding probability breeding success capture-mark-recapture chick body condition fisheries bycatch Kerguelen Islands sea surface temperature senescence southern oscillation index survival Thalassarche melanophris envir psy Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.1890/12-0215.1 2023-01-22T17:40:47Z International audience Theoretical and empirical studies have highlighted the effects of age on several life-history traits in wild populations. There is also increasing evidence for environmental effects on their demographic traits. However, quantifying how individuals differentially respond to environmental variations according to their age remains a challenge in ecology. In a population of Black-browed Albatrosses monitored during 43 years, we analyzed how life-history traits varied according to age, and whether individuals of different ages responded in different ways to environmental conditions. To do so, we: 1) examined how age affected seven life-history traits; 2) investigated differences in temporal variance of demographic traits between age-classes and 3) tested for age-dependent effects of climate and fisheries covariates on demographic traits. Overall there was a tendency for traits to improve during the first years of life (5-10 years), to peak and remain stable at middle age (10-30 years) and decline at old ages. At young ages, survival and reproductive parameters increased, except offspring body condition at fledging, suggesting that younger parents had already acquired good foraging capacities. However, they suffered from inexperience in breeding as suggested by their higher breeding failures during incubation. There was evidence for reproductive and actuarial senescence. In particular, breeding success and offspring body condition declined abruptly suggesting altered foraging capacities of old individuals. Middle-aged individuals had the lowest temporal variance of demographic traits. Although this is predicted by the theory of environmental canalization, it could also results from a higher susceptibility of young and old birds due to their respective inexperience and senescence. The highest temporal variances were found in old individual. Survival was significantly influenced by sea surface temperatures in the foraging zone of this albatross population during breeding. During warm events ... Article in Journal/Newspaper Kerguelen Islands Unknown Kerguelen Kerguelen Islands Ecology 94 1 208 220 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Black-browed Albatross breeding probability breeding success capture-mark-recapture chick body condition fisheries bycatch Kerguelen Islands sea surface temperature senescence southern oscillation index survival Thalassarche melanophris envir psy |
spellingShingle |
Black-browed Albatross breeding probability breeding success capture-mark-recapture chick body condition fisheries bycatch Kerguelen Islands sea surface temperature senescence southern oscillation index survival Thalassarche melanophris envir psy Pardo, Déborah Barbraud, Christophe Authier, Matthieu Weimerskirch, Henri Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits |
topic_facet |
Black-browed Albatross breeding probability breeding success capture-mark-recapture chick body condition fisheries bycatch Kerguelen Islands sea surface temperature senescence southern oscillation index survival Thalassarche melanophris envir psy |
description |
International audience Theoretical and empirical studies have highlighted the effects of age on several life-history traits in wild populations. There is also increasing evidence for environmental effects on their demographic traits. However, quantifying how individuals differentially respond to environmental variations according to their age remains a challenge in ecology. In a population of Black-browed Albatrosses monitored during 43 years, we analyzed how life-history traits varied according to age, and whether individuals of different ages responded in different ways to environmental conditions. To do so, we: 1) examined how age affected seven life-history traits; 2) investigated differences in temporal variance of demographic traits between age-classes and 3) tested for age-dependent effects of climate and fisheries covariates on demographic traits. Overall there was a tendency for traits to improve during the first years of life (5-10 years), to peak and remain stable at middle age (10-30 years) and decline at old ages. At young ages, survival and reproductive parameters increased, except offspring body condition at fledging, suggesting that younger parents had already acquired good foraging capacities. However, they suffered from inexperience in breeding as suggested by their higher breeding failures during incubation. There was evidence for reproductive and actuarial senescence. In particular, breeding success and offspring body condition declined abruptly suggesting altered foraging capacities of old individuals. Middle-aged individuals had the lowest temporal variance of demographic traits. Although this is predicted by the theory of environmental canalization, it could also results from a higher susceptibility of young and old birds due to their respective inexperience and senescence. The highest temporal variances were found in old individual. Survival was significantly influenced by sea surface temperatures in the foraging zone of this albatross population during breeding. During warm events ... |
author2 |
Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Pardo, Déborah Barbraud, Christophe Authier, Matthieu Weimerskirch, Henri |
author_facet |
Pardo, Déborah Barbraud, Christophe Authier, Matthieu Weimerskirch, Henri |
author_sort |
Pardo, Déborah |
title |
Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits |
title_short |
Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits |
title_full |
Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits |
title_fullStr |
Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits |
title_full_unstemmed |
Evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits |
title_sort |
evidence for an age-dependent influence of environmental variations on a long-lived seabird's life-history traits |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://doi.org/10.1890/12-0215.1 https://hal.archives-ouvertes.fr/hal-00722890 |
geographic |
Kerguelen Kerguelen Islands |
geographic_facet |
Kerguelen Kerguelen Islands |
genre |
Kerguelen Islands |
genre_facet |
Kerguelen Islands |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0012-9658 Ecology Ecology, Ecological Society of America, 2013, 94 (1), pp.208-220. ⟨10.1890/12-0215.1⟩ |
op_relation |
hal-00722890 doi:10.1890/12-0215.1 10670/1.hv4k5a https://hal.archives-ouvertes.fr/hal-00722890 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1890/12-0215.1 |
container_title |
Ecology |
container_volume |
94 |
container_issue |
1 |
container_start_page |
208 |
op_container_end_page |
220 |
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1766055384482578432 |