Maternal glucocorticoid levels during incubation predict breeding success, but not reproductive investment, in a free-ranging bird.
Avian
Corticosterone
Fitness
Stressor
Tree swallow
Journal
Biology open
ISSN: 2046-6390
Titre abrégé: Biol Open
Pays: England
ID NLM: 101578018
Informations de publication
Date de publication:
19 10 2020
19 10 2020
Historique:
entrez:
20
10
2020
pubmed:
21
10
2020
medline:
14
10
2021
Statut:
epublish
Résumé
The hormone corticosterone (CORT) has been hypothesized to be linked with fitness, but the directionality of the relationship is unclear. The 'CORT-fitness hypothesis' proposes that high levels of CORT arise from challenging environmental conditions, resulting in lower reproductive success (a negative relationship). In contrast, the CORT-adaptation hypothesis suggests that, during energetically demanding periods, CORT will mediate physiological or behavioral changes that result in increased reproductive investment and success (a positive relationship). During two breeding seasons, we experimentally manipulated circulating CORT levels in female tree swallows (
Identifiants
pubmed: 33077551
pii: 9/10/bio045898
doi: 10.1242/bio.045898
pmc: PMC7595688
pii:
doi:
Substances chimiques
Biomarkers
0
Glucocorticoids
0
Corticosterone
W980KJ009P
Banques de données
Dryad
['10.5061/dryad.bcc2fqz8c']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2020. Published by The Company of Biologists Ltd.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare no competing or financial interests.
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