Relative influence of fisheries and climate on the demography of four albatross species
International audience Worldwide ecosystems are modified by human activities and climate change. To be able to predict future changes, it is necessary to understand their respective role on population dynamics. Among the most threatened species are top predators because of their position in the food...
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ftunivnantes:oai:HAL:hal-00528138v1 2023-05-15T14:03:16+02:00 Relative influence of fisheries and climate on the demography of four albatross species Rolland, Virginie Weimerskirch, Henri Barbraud, Christophe Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2010-10-21 https://hal.science/hal-00528138 https://doi.org/10.1111/j.1365-2486.2009.02070.x en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2486.2009.02070.x hal-00528138 https://hal.science/hal-00528138 doi:10.1111/j.1365-2486.2009.02070.x ISSN: 1354-1013 EISSN: 1365-2486 Global Change Biology https://hal.science/hal-00528138 Global Change Biology, 2010, 16, pp.1910-1922. ⟨10.1111/j.1365-2486.2009.02070.x⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2010 ftunivnantes https://doi.org/10.1111/j.1365-2486.2009.02070.x 2023-02-08T00:52:57Z International audience Worldwide ecosystems are modified by human activities and climate change. To be able to predict future changes, it is necessary to understand their respective role on population dynamics. Among the most threatened species are top predators because of their position in the food web. Albatross populations are potentially affected by both human activities, especially longline fisheries, and climatic fluctuations. Based on long-term data (1985–2006), we conducted through a comparative approach a demographic analysis (adult survival and breeding success) on four albatross species breeding on the Indian Ocean sub-Antarctic Islands to assess the relative impact of climate and fisheries during and outside the breeding season. The study revealed that adult survival of almost all species was not affected by climate, and therefore probably canalized against climatic variations, but was negatively affected by tuna longlining effort in three species. Breeding success was affected by climate, with contrasted effects between species, with Southern Oscillation Index having an impact on all species but one. Differences in demographic responses depended on the foraging zone and season. In order to predict population trajectories of seabirds such as albatrosses, our results show the importance of assessing the relative influence of fishing and climate impacts on demography. Article in Journal/Newspaper Antarc* Antarctic Université de Nantes: HAL-UNIV-NANTES Antarctic Indian Global Change Biology 16 7 1910 1922 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Rolland, Virginie Weimerskirch, Henri Barbraud, Christophe Relative influence of fisheries and climate on the demography of four albatross species |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Worldwide ecosystems are modified by human activities and climate change. To be able to predict future changes, it is necessary to understand their respective role on population dynamics. Among the most threatened species are top predators because of their position in the food web. Albatross populations are potentially affected by both human activities, especially longline fisheries, and climatic fluctuations. Based on long-term data (1985–2006), we conducted through a comparative approach a demographic analysis (adult survival and breeding success) on four albatross species breeding on the Indian Ocean sub-Antarctic Islands to assess the relative impact of climate and fisheries during and outside the breeding season. The study revealed that adult survival of almost all species was not affected by climate, and therefore probably canalized against climatic variations, but was negatively affected by tuna longlining effort in three species. Breeding success was affected by climate, with contrasted effects between species, with Southern Oscillation Index having an impact on all species but one. Differences in demographic responses depended on the foraging zone and season. In order to predict population trajectories of seabirds such as albatrosses, our results show the importance of assessing the relative influence of fishing and climate impacts on demography. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Rolland, Virginie Weimerskirch, Henri Barbraud, Christophe |
author_facet |
Rolland, Virginie Weimerskirch, Henri Barbraud, Christophe |
author_sort |
Rolland, Virginie |
title |
Relative influence of fisheries and climate on the demography of four albatross species |
title_short |
Relative influence of fisheries and climate on the demography of four albatross species |
title_full |
Relative influence of fisheries and climate on the demography of four albatross species |
title_fullStr |
Relative influence of fisheries and climate on the demography of four albatross species |
title_full_unstemmed |
Relative influence of fisheries and climate on the demography of four albatross species |
title_sort |
relative influence of fisheries and climate on the demography of four albatross species |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00528138 https://doi.org/10.1111/j.1365-2486.2009.02070.x |
geographic |
Antarctic Indian |
geographic_facet |
Antarctic Indian |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 1354-1013 EISSN: 1365-2486 Global Change Biology https://hal.science/hal-00528138 Global Change Biology, 2010, 16, pp.1910-1922. ⟨10.1111/j.1365-2486.2009.02070.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2486.2009.02070.x hal-00528138 https://hal.science/hal-00528138 doi:10.1111/j.1365-2486.2009.02070.x |
op_doi |
https://doi.org/10.1111/j.1365-2486.2009.02070.x |
container_title |
Global Change Biology |
container_volume |
16 |
container_issue |
7 |
container_start_page |
1910 |
op_container_end_page |
1922 |
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1766273898718953472 |