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...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Royal Society
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1098/rspb.2008.0925 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0925 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0925 |
id |
crroyalsociety:10.1098/rspb.2008.0925 |
---|---|
record_format |
openpolar |
spelling |
crroyalsociety:10.1098/rspb.2008.0925 2024-09-15T17:46:39+00:00 Contrasted patterns of age-specific reproduction in long-lived seabirds Berman, M Gaillard, J.-M Weimerskirch, H 2008 http://dx.doi.org/10.1098/rspb.2008.0925 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0925 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0925 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 276, issue 1655, page 375-382 ISSN 0962-8452 1471-2954 journal-article 2008 crroyalsociety https://doi.org/10.1098/rspb.2008.0925 2024-08-12T04:27:37Z 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. Article in Journal/Newspaper Antarc* Antarctica Snow Petrel The Royal Society Proceedings of the Royal Society B: Biological Sciences 276 1655 375 382 |
institution |
Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
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 |
Article in Journal/Newspaper |
author |
Berman, M Gaillard, J.-M Weimerskirch, H |
spellingShingle |
Berman, M Gaillard, J.-M Weimerskirch, H Contrasted patterns of age-specific reproduction in long-lived seabirds |
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://dx.doi.org/10.1098/rspb.2008.0925 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0925 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0925 |
genre |
Antarc* Antarctica Snow Petrel |
genre_facet |
Antarc* Antarctica Snow Petrel |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 276, issue 1655, page 375-382 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2008.0925 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
276 |
container_issue |
1655 |
container_start_page |
375 |
op_container_end_page |
382 |
_version_ |
1810494972369043456 |