Colour-polymorphic snake species are older

Détails

ID Serval
serval:BIB_537DF46861C3
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Colour-polymorphic snake species are older
Périodique
Biological Journal of the Linnean Society
Auteur(s)
Pizzatto L., Dubey S.
ISSN
0024-4066
Statut éditorial
Publié
Date de publication
2012
Volume
107
Numéro
1
Pages
210-218
Langue
anglais
Résumé
Many characteristics, for example life-history traits, physiological tolerance to heat and cold, and energy requirements, contribute to a population's ability to persist in the face of climatic variation. Recent studies have suggested that the presence of intraspecific colour polymorphism could be another potential contributor to population resilience (e.g. to climate change) in ectothermic vertebrates such as reptiles. In the present study, we tested for a relationship between the presence of intraspecific colour polymorphism and the age of snake species. Using phylogenetic comparative methods, we demonstrate that the presence of intraspecific colour polymorphism is correlated with the age of a species, with polymorphic snake species being significantly older than monomorphic species. Understanding how species have dealt with past environmental modifications, such as climate change, can provide important insights into how they are likely to respond in the future to ongoing climate warming.
Mots-clé
climate change, colour polymorphism, intraspecific diversification, molecular dating, reptile
Web of science
Open Access
Oui
Création de la notice
02/04/2012 13:08
Dernière modification de la notice
20/08/2019 14:08
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