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Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival

In wild long-lived animals, analysis of impacts of stressful natal conditions on adult performance has rarely embraced the entire age span, and the possibility that costs are expressed late in life has seldom been examined. Using 26 years of data from 8541 fledglings and 1310 adults of the blue-foot...

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Autores principales: Ancona, Sergio, Zúñiga-Vega, J. Jaime, Rodríguez, Cristina, Drummond, Hugh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society Publishing 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5792865/
https://www.ncbi.nlm.nih.gov/pubmed/29410788
http://dx.doi.org/10.1098/rsos.170076
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author Ancona, Sergio
Zúñiga-Vega, J. Jaime
Rodríguez, Cristina
Drummond, Hugh
author_facet Ancona, Sergio
Zúñiga-Vega, J. Jaime
Rodríguez, Cristina
Drummond, Hugh
author_sort Ancona, Sergio
collection PubMed
description In wild long-lived animals, analysis of impacts of stressful natal conditions on adult performance has rarely embraced the entire age span, and the possibility that costs are expressed late in life has seldom been examined. Using 26 years of data from 8541 fledglings and 1310 adults of the blue-footed booby (Sula nebouxii), a marine bird that can live up to 23 years, we tested whether experiencing the warm waters and food scarcity associated with El Niño in the natal year reduces recruitment or survival over the adult lifetime. Warm water in the natal year reduced the probability of recruiting; each additional degree (°C) of water temperature meant a reduction of roughly 50% in fledglings' probability of returning to the natal colony as breeders. Warm water in the current year impacted adult survival, with greater effect at the oldest ages than during early adulthood. However, warm water in the natal year did not affect survival at any age over the adult lifespan. A previous study showed that early recruitment and widely spaced breeding allow boobies that experience warm waters in the natal year to achieve normal fledgling production over the first 10 years; our results now show that this reproductive effort incurs no survival penalty, not even late in life. This pattern is additional evidence of buffering against stressful natal conditions via life-history adjustments.
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spelling pubmed-57928652018-02-06 Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival Ancona, Sergio Zúñiga-Vega, J. Jaime Rodríguez, Cristina Drummond, Hugh R Soc Open Sci Biology (Whole Organism) In wild long-lived animals, analysis of impacts of stressful natal conditions on adult performance has rarely embraced the entire age span, and the possibility that costs are expressed late in life has seldom been examined. Using 26 years of data from 8541 fledglings and 1310 adults of the blue-footed booby (Sula nebouxii), a marine bird that can live up to 23 years, we tested whether experiencing the warm waters and food scarcity associated with El Niño in the natal year reduces recruitment or survival over the adult lifetime. Warm water in the natal year reduced the probability of recruiting; each additional degree (°C) of water temperature meant a reduction of roughly 50% in fledglings' probability of returning to the natal colony as breeders. Warm water in the current year impacted adult survival, with greater effect at the oldest ages than during early adulthood. However, warm water in the natal year did not affect survival at any age over the adult lifespan. A previous study showed that early recruitment and widely spaced breeding allow boobies that experience warm waters in the natal year to achieve normal fledgling production over the first 10 years; our results now show that this reproductive effort incurs no survival penalty, not even late in life. This pattern is additional evidence of buffering against stressful natal conditions via life-history adjustments. The Royal Society Publishing 2018-01-17 /pmc/articles/PMC5792865/ /pubmed/29410788 http://dx.doi.org/10.1098/rsos.170076 Text en © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Biology (Whole Organism)
Ancona, Sergio
Zúñiga-Vega, J. Jaime
Rodríguez, Cristina
Drummond, Hugh
Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival
title Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival
title_full Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival
title_fullStr Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival
title_full_unstemmed Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival
title_short Experiencing El Niño conditions during early life reduces recruiting probabilities but not adult survival
title_sort experiencing el niño conditions during early life reduces recruiting probabilities but not adult survival
topic Biology (Whole Organism)
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5792865/
https://www.ncbi.nlm.nih.gov/pubmed/29410788
http://dx.doi.org/10.1098/rsos.170076
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