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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ftpubmed:oai:pubmedcentral.nih.gov:4528510 2023-05-15T18:07:11+02:00 Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds Vincenzi, Simone Hatch, Scott Merkling, Thomas Kitaysky, Alexander S. 2015-08-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528510/ http://www.ncbi.nlm.nih.gov/pubmed/26180065 https://doi.org/10.1098/rspb.2015.0762 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528510/ http://www.ncbi.nlm.nih.gov/pubmed/26180065 http://dx.doi.org/10.1098/rspb.2015.0762 © 2015 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. Research Articles Text 2015 ftpubmed https://doi.org/10.1098/rspb.2015.0762 2016-08-14T00:01:20Z 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. Text rissa tridactyla Alaska PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 282 1812 20150762 |
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Research Articles |
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Research Articles Vincenzi, Simone Hatch, Scott Merkling, Thomas Kitaysky, Alexander S. Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds |
topic_facet |
Research Articles |
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 |
Text |
author |
Vincenzi, Simone Hatch, Scott Merkling, Thomas Kitaysky, Alexander S. |
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://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528510/ http://www.ncbi.nlm.nih.gov/pubmed/26180065 https://doi.org/10.1098/rspb.2015.0762 |
genre |
rissa tridactyla Alaska |
genre_facet |
rissa tridactyla Alaska |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528510/ http://www.ncbi.nlm.nih.gov/pubmed/26180065 http://dx.doi.org/10.1098/rspb.2015.0762 |
op_rights |
© 2015 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. |
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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1766179146752327680 |