Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction
Evolutionary theories of senescence predict that rates of decline in performance parameters should be shaped by early-life trade-offs between reproduction and somatic maintenance. Here we investigate factors influencing the rate of reproductive senescence in a long-lived seabird, the common guillemo...
Published in: | The American Naturalist |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/81935 2024-01-14T10:06:12+01:00 Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction Reed, Thomas E. Kruuk, Loeske Wanless, Sarah Frederiksen, Morten Cunningham, Emma J.A. Harris, Michael P. http://hdl.handle.net/1885/81935 https://doi.org/10.1086/524957 https://openresearch-repository.anu.edu.au/bitstream/1885/81935/5/f5625xPUB10240.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81935/7/01_Reed_Reproductive_senescence_in_a_2008.pdf.jpg unknown University of Chicago Press 0003-0147 http://hdl.handle.net/1885/81935 doi:10.1086/524957 https://openresearch-repository.anu.edu.au/bitstream/1885/81935/5/f5625xPUB10240.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81935/7/01_Reed_Reproductive_senescence_in_a_2008.pdf.jpg The American Naturalist Keywords: environmental conditions life history theory pleiotropy reproductive cost reproductive success seabird senescence trade-off aging animal article breeding Charadriiformes environment female longevity male physiology regression analysis r Disposable soma Guillemot Reproductive performance Journal article ftanucanberra https://doi.org/10.1086/524957 2023-12-15T09:36:22Z Evolutionary theories of senescence predict that rates of decline in performance parameters should be shaped by early-life trade-offs between reproduction and somatic maintenance. Here we investigate factors influencing the rate of reproductive senescence in a long-lived seabird, the common guillemot Uria aalge, using data collected over a 23-year period. In the last 3 years of life, individual guillemots had significantly reduced breeding success and were less likely to hold a site or attempt to breed. Females senesced at a significantly faster rate than males. At the individual level, high levels of reproductive output earlier in life were associated with increased senescence later in life. This trade-off between early- and late-life reproduction was evident independent of the fact that as birds age, they breed later in the season. The rate of senescence was additionally dependent on environmental conditions experienced earlier in life, with evidence that harsh conditions amplified later declines in breeding success. Overall, individuals with intermediate levels of early-life productivity lived longer. These results provide support for the antagonistic-pleiotropy and disposable-soma theories of senescence and demonstrate for the first time in a wild bird population that increased rates of senescence in reproductive performance are associated with varying costs of reproduction early in life. Article in Journal/Newspaper common guillemot Uria aalge uria Australian National University: ANU Digital Collections The American Naturalist 171 2 E89 E101 |
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Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: environmental conditions life history theory pleiotropy reproductive cost reproductive success seabird senescence trade-off aging animal article breeding Charadriiformes environment female longevity male physiology regression analysis r Disposable soma Guillemot Reproductive performance |
spellingShingle |
Keywords: environmental conditions life history theory pleiotropy reproductive cost reproductive success seabird senescence trade-off aging animal article breeding Charadriiformes environment female longevity male physiology regression analysis r Disposable soma Guillemot Reproductive performance Reed, Thomas E. Kruuk, Loeske Wanless, Sarah Frederiksen, Morten Cunningham, Emma J.A. Harris, Michael P. Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction |
topic_facet |
Keywords: environmental conditions life history theory pleiotropy reproductive cost reproductive success seabird senescence trade-off aging animal article breeding Charadriiformes environment female longevity male physiology regression analysis r Disposable soma Guillemot Reproductive performance |
description |
Evolutionary theories of senescence predict that rates of decline in performance parameters should be shaped by early-life trade-offs between reproduction and somatic maintenance. Here we investigate factors influencing the rate of reproductive senescence in a long-lived seabird, the common guillemot Uria aalge, using data collected over a 23-year period. In the last 3 years of life, individual guillemots had significantly reduced breeding success and were less likely to hold a site or attempt to breed. Females senesced at a significantly faster rate than males. At the individual level, high levels of reproductive output earlier in life were associated with increased senescence later in life. This trade-off between early- and late-life reproduction was evident independent of the fact that as birds age, they breed later in the season. The rate of senescence was additionally dependent on environmental conditions experienced earlier in life, with evidence that harsh conditions amplified later declines in breeding success. Overall, individuals with intermediate levels of early-life productivity lived longer. These results provide support for the antagonistic-pleiotropy and disposable-soma theories of senescence and demonstrate for the first time in a wild bird population that increased rates of senescence in reproductive performance are associated with varying costs of reproduction early in life. |
format |
Article in Journal/Newspaper |
author |
Reed, Thomas E. Kruuk, Loeske Wanless, Sarah Frederiksen, Morten Cunningham, Emma J.A. Harris, Michael P. |
author_facet |
Reed, Thomas E. Kruuk, Loeske Wanless, Sarah Frederiksen, Morten Cunningham, Emma J.A. Harris, Michael P. |
author_sort |
Reed, Thomas E. |
title |
Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction |
title_short |
Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction |
title_full |
Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction |
title_fullStr |
Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction |
title_full_unstemmed |
Reproductive senescence in a long-lived seabird: Rates of decline in late-life performance are associated with varying costs of early reproduction |
title_sort |
reproductive senescence in a long-lived seabird: rates of decline in late-life performance are associated with varying costs of early reproduction |
publisher |
University of Chicago Press |
url |
http://hdl.handle.net/1885/81935 https://doi.org/10.1086/524957 https://openresearch-repository.anu.edu.au/bitstream/1885/81935/5/f5625xPUB10240.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81935/7/01_Reed_Reproductive_senescence_in_a_2008.pdf.jpg |
genre |
common guillemot Uria aalge uria |
genre_facet |
common guillemot Uria aalge uria |
op_source |
The American Naturalist |
op_relation |
0003-0147 http://hdl.handle.net/1885/81935 doi:10.1086/524957 https://openresearch-repository.anu.edu.au/bitstream/1885/81935/5/f5625xPUB10240.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81935/7/01_Reed_Reproductive_senescence_in_a_2008.pdf.jpg |
op_doi |
https://doi.org/10.1086/524957 |
container_title |
The American Naturalist |
container_volume |
171 |
container_issue |
2 |
container_start_page |
E89 |
op_container_end_page |
E101 |
_version_ |
1788060505550618624 |