Glucocorticoid levels are linked to lifetime reproductive success and survival of adult barn owls.

Détails

ID Serval
serval:BIB_2BF375164197
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Glucocorticoid levels are linked to lifetime reproductive success and survival of adult barn owls.
Périodique
Journal of evolutionary biology
Auteur(s)
Béziers P., Korner-Nievergelt F., Jenni L., Roulin A., Almasi B.
ISSN
1420-9101 (Electronic)
ISSN-L
1010-061X
Statut éditorial
Publié
Date de publication
12/2020
Peer-reviewed
Oui
Volume
33
Numéro
12
Pages
1689-1703
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Glucocorticoid hormones, such as corticosterone, are crucial in regulating daily life metabolism and energy expenditure, as well as promoting short-term physiological and behavioural responses to unpredictable environmental challenges. Therefore, glucocorticoids are considered to mediate trade-offs between survival and reproduction. Relatively little is known about how selection has shaped glucocorticoid levels. We used 15 years of capture-recapture and dead recovery data combined with 13 years of corticosterone and breeding success data taken on breeding barn owls (Tyto alba) to investigate such trade-offs. We found that survival was positively correlated with stress-induced corticosterone levels in both sexes, whereas annual and lifetime reproductive success (i.e. the sum of young successfully fledged during the entire reproductive career) was positively correlated with both baseline and stress-induced corticosterone levels in females only. Our results suggest that, in the barn owl, the stress-induced corticosterone response is a good proxy for adult survival and lifetime reproductive success. However, selection pressure appears to act differently on corticosterone levels of males and females.
Mots-clé
barn owl, bird, corticosterone, fitness, glucocorticoids, multistate model, reproductive success, stress, survival
Pubmed
Web of science
Création de la notice
28/09/2020 11:55
Dernière modification de la notice
20/01/2021 6:25
Données d'usage