No evidence for survival selection on carotenoid-based nestling coloration in great tits (Parus major).

Détails

Ressource 1Télécharger: BIB_45147FD9B675.P001.pdf (110.46 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_45147FD9B675
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
No evidence for survival selection on carotenoid-based nestling coloration in great tits (Parus major).
Périodique
Journal of Evolutionary Biology
Auteur(s)
Fitze P.S., Tschirren B.
ISSN
1010-061X (Print)
ISSN-L
1010-061X
Statut éditorial
Publié
Date de publication
2006
Peer-reviewed
Oui
Volume
19
Numéro
2
Pages
618-624
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
In several vertebrate species evidence supports the hypothesis that carotenoid-based coloration of adults has evolved due to sexual selection. However, in some birds already the nestlings display carotenoid-based coloration. Because the nestling's body plumage is typically moulted before the first reproductive event, sexual selection cannot explain the evolution of these carotenoid-based traits. This suggests that natural selection might be the reason for its evolution. Here we test whether the carotenoid-based nestling coloration of great tits (Parus major) predicts survival after fledging. Contrary to our expectation, the carotenoid-based plumage coloration was not related to short- nor to long-term survival in the studied population. Additionally, no prefledging selection was detectable in an earlier study. This indicates that the carotenoid-based coloration of nestling great tits is currently not under natural selection and it suggests that past selection pressures or selection acting on correlated traits may have led to its evolution.
Mots-clé
Animals, Biological Evolution, Carotenoids/analysis, Color, Environment, Feathers, Pigmentation/genetics, Probability, Selection, Genetic, Songbirds/genetics
Pubmed
Web of science
Création de la notice
24/11/2010 14:16
Dernière modification de la notice
20/08/2019 13:49
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