La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Incubation temperature does not explain variation in the embryo development periods in a sample of Neotropical passerine birds
Auteurs :	W. Douglas Robinson, Auteur ; Suzanne H. Austin, Auteur ; Tara R. Robinson, Auteur ; Robert E. Ricklefs, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (155(1) JAN 2014)
Article en page(s) :	45-51
Langues:	Anglais
Résumé :	Growth of avian embryos depends on heat transferred from incubating parents. Parental behavior, including nest characteristics, can influence the length of the incubation period by varying the temperature of incubated eggs, the length of parental absences from the nest, and the rate of egg cooling during absences. Reduced parental attendance in response to risk of predation at the nest has been proposed as an explanation for the longer incubation periods of many tropical birds compared to temperate species. We incubated the eggs of eight species of tropical passerine birds, with natural incubation periods between 12 and

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