Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds
Supplementation of food to wild animals is extensively applied as a conservation tool to increase local production of young. However, in long-lived migratory animals, the carry-over effects of food supplementation early in life on the subsequent recruitment of individuals into natal populations and...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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crroyalsociety:10.1098/rspb.2015.0762 2024-06-02T08:13:49+00:00 Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds Vincenzi, Simone Hatch, Scott Merkling, Thomas Kitaysky, Alexander S. 2015 http://dx.doi.org/10.1098/rspb.2015.0762 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.0762 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.0762 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 282, issue 1812, page 20150762 ISSN 0962-8452 1471-2954 journal-article 2015 crroyalsociety https://doi.org/10.1098/rspb.2015.0762 2024-05-07T14:16:45Z Supplementation of food to wild animals is extensively applied as a conservation tool to increase local production of young. However, in long-lived migratory animals, the carry-over effects of food supplementation early in life on the subsequent recruitment of individuals into natal populations and their lifetime reproductive success are largely unknown. We examine how experimental food supplementation early in life affects: (i) recruitment as breeders of kittiwakes Rissa tridactyla born in a colony on Middleton Island (Alaska) between 1996 and 2006 ( n = 1629) that bred in the same colony through 2013 ( n = 235); and (ii) breeding success of individuals that have completed their life cycle at the colony ( n = 56). Birds were raised in nests that were either supplemented with food (Fed) or unsupplemented (Unfed). Fledging success was higher in Fed compared with Unfed nests. After accounting for hatching rank, growth and oceanic conditions at fledging, Fed fledglings had a lower probability of recruiting as breeders in the Middleton colony than Unfed birds. The per-nest contribution of breeders was still significantly higher for Fed nests because of their higher productivity. Lifetime reproductive success of a subset of kittiwakes that thus far had completed their life cycle was not affected by the food supplementation during development. Our results cast light on the carry-over effects of early food conditions on the vital rates of long-lived animals and support food supplementation as an effective conservation strategy for long-lived seabirds. Article in Journal/Newspaper rissa tridactyla Alaska The Royal Society Proceedings of the Royal Society B: Biological Sciences 282 1812 20150762 |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Supplementation of food to wild animals is extensively applied as a conservation tool to increase local production of young. However, in long-lived migratory animals, the carry-over effects of food supplementation early in life on the subsequent recruitment of individuals into natal populations and their lifetime reproductive success are largely unknown. We examine how experimental food supplementation early in life affects: (i) recruitment as breeders of kittiwakes Rissa tridactyla born in a colony on Middleton Island (Alaska) between 1996 and 2006 ( n = 1629) that bred in the same colony through 2013 ( n = 235); and (ii) breeding success of individuals that have completed their life cycle at the colony ( n = 56). Birds were raised in nests that were either supplemented with food (Fed) or unsupplemented (Unfed). Fledging success was higher in Fed compared with Unfed nests. After accounting for hatching rank, growth and oceanic conditions at fledging, Fed fledglings had a lower probability of recruiting as breeders in the Middleton colony than Unfed birds. The per-nest contribution of breeders was still significantly higher for Fed nests because of their higher productivity. Lifetime reproductive success of a subset of kittiwakes that thus far had completed their life cycle was not affected by the food supplementation during development. Our results cast light on the carry-over effects of early food conditions on the vital rates of long-lived animals and support food supplementation as an effective conservation strategy for long-lived seabirds. |
format |
Article in Journal/Newspaper |
author |
Vincenzi, Simone Hatch, Scott Merkling, Thomas Kitaysky, Alexander S. |
spellingShingle |
Vincenzi, Simone Hatch, Scott Merkling, Thomas Kitaysky, Alexander S. Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
author_facet |
Vincenzi, Simone Hatch, Scott Merkling, Thomas Kitaysky, Alexander S. |
author_sort |
Vincenzi, Simone |
title |
Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
title_short |
Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
title_full |
Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
title_fullStr |
Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
title_full_unstemmed |
Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
title_sort |
carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
publisher |
The Royal Society |
publishDate |
2015 |
url |
http://dx.doi.org/10.1098/rspb.2015.0762 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.0762 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.0762 |
genre |
rissa tridactyla Alaska |
genre_facet |
rissa tridactyla Alaska |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 282, issue 1812, page 20150762 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2015.0762 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
282 |
container_issue |
1812 |
container_start_page |
20150762 |
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1800737442772287488 |