Contrasted patterns of age-specific reproduction in long-lived seabirds
While the number of studies providing evidence of actuarial senescence is increasing, and covers a wide range of taxa, the process of reproductive senescence remains poorly understood. In fact, quite high reproductive output until the last years of life has been reported in several vertebrate specie...
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ftpubmed:oai:pubmedcentral.nih.gov:2674342 2023-05-15T13:42:19+02:00 Contrasted patterns of age-specific reproduction in long-lived seabirds Berman, M. Gaillard, J.-M. Weimerskirch, H. 2008-10-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2674342 http://www.ncbi.nlm.nih.gov/pubmed/18832060 https://doi.org/10.1098/rspb.2008.0925 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2674342 http://www.ncbi.nlm.nih.gov/pubmed/18832060 http://dx.doi.org/10.1098/rspb.2008.0925 © 2008 The Royal Society Research Article Text 2008 ftpubmed https://doi.org/10.1098/rspb.2008.0925 2013-09-02T12:36:51Z While the number of studies providing evidence of actuarial senescence is increasing, and covers a wide range of taxa, the process of reproductive senescence remains poorly understood. In fact, quite high reproductive output until the last years of life has been reported in several vertebrate species, so that whether or not reproductive senescence is widespread remains unknown. We compared age-specific changes of reproductive parameters between two closely related species of long-lived seabirds: the small-sized snow petrel Pagodroma nivea, and the medium-sized southern fulmar Fulmarus glacialoides. Both are sympatric in Antarctica. We used an exceptional dataset collected over more than 40 years to assess age-specific variations of both breeding probability and breeding success. We found contrasted age-specific reproductive patterns between the two species. Reproductive senescence clearly occurred from 21 years of age onwards in the southern fulmar, in both breeding probability and success, whereas we did not report any decline in the breeding success of the snow petrel, although a very late decrease in the proportion of breeders occurred at 34 years. Such a contrasted age-specific reproductive pattern was rather unexpected. Differences in life history including size or migratory behaviour are the most likely candidates to account for the difference we reported in reproductive senescence between these sympatric seabird species. Text Antarc* Antarctica Snow Petrel PubMed Central (PMC) Fulmar ENVELOPE(-46.016,-46.016,-60.616,-60.616) Nivea ENVELOPE(-45.479,-45.479,-60.580,-60.580) Proceedings of the Royal Society B: Biological Sciences 276 1655 375 382 |
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English |
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Research Article |
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Research Article Berman, M. Gaillard, J.-M. Weimerskirch, H. Contrasted patterns of age-specific reproduction in long-lived seabirds |
topic_facet |
Research Article |
description |
While the number of studies providing evidence of actuarial senescence is increasing, and covers a wide range of taxa, the process of reproductive senescence remains poorly understood. In fact, quite high reproductive output until the last years of life has been reported in several vertebrate species, so that whether or not reproductive senescence is widespread remains unknown. We compared age-specific changes of reproductive parameters between two closely related species of long-lived seabirds: the small-sized snow petrel Pagodroma nivea, and the medium-sized southern fulmar Fulmarus glacialoides. Both are sympatric in Antarctica. We used an exceptional dataset collected over more than 40 years to assess age-specific variations of both breeding probability and breeding success. We found contrasted age-specific reproductive patterns between the two species. Reproductive senescence clearly occurred from 21 years of age onwards in the southern fulmar, in both breeding probability and success, whereas we did not report any decline in the breeding success of the snow petrel, although a very late decrease in the proportion of breeders occurred at 34 years. Such a contrasted age-specific reproductive pattern was rather unexpected. Differences in life history including size or migratory behaviour are the most likely candidates to account for the difference we reported in reproductive senescence between these sympatric seabird species. |
format |
Text |
author |
Berman, M. Gaillard, J.-M. Weimerskirch, H. |
author_facet |
Berman, M. Gaillard, J.-M. Weimerskirch, H. |
author_sort |
Berman, M. |
title |
Contrasted patterns of age-specific reproduction in long-lived seabirds |
title_short |
Contrasted patterns of age-specific reproduction in long-lived seabirds |
title_full |
Contrasted patterns of age-specific reproduction in long-lived seabirds |
title_fullStr |
Contrasted patterns of age-specific reproduction in long-lived seabirds |
title_full_unstemmed |
Contrasted patterns of age-specific reproduction in long-lived seabirds |
title_sort |
contrasted patterns of age-specific reproduction in long-lived seabirds |
publisher |
The Royal Society |
publishDate |
2008 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2674342 http://www.ncbi.nlm.nih.gov/pubmed/18832060 https://doi.org/10.1098/rspb.2008.0925 |
long_lat |
ENVELOPE(-46.016,-46.016,-60.616,-60.616) ENVELOPE(-45.479,-45.479,-60.580,-60.580) |
geographic |
Fulmar Nivea |
geographic_facet |
Fulmar Nivea |
genre |
Antarc* Antarctica Snow Petrel |
genre_facet |
Antarc* Antarctica Snow Petrel |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2674342 http://www.ncbi.nlm.nih.gov/pubmed/18832060 http://dx.doi.org/10.1098/rspb.2008.0925 |
op_rights |
© 2008 The Royal Society |
op_doi |
https://doi.org/10.1098/rspb.2008.0925 |
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Proceedings of the Royal Society B: Biological Sciences |
container_volume |
276 |
container_issue |
1655 |
container_start_page |
375 |
op_container_end_page |
382 |
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1766166356841988096 |