Understanding the ecological niche to elucidate spatial strategies of the southernmost Tupinambis lizards

Détails

ID Serval
serval:BIB_81EFC168996A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Understanding the ecological niche to elucidate spatial strategies of the southernmost Tupinambis lizards
Périodique
Amphibia-Reptilia
Auteur(s)
Lanfri S., Di Cola V., Naretto S., Chiaraviglio M., Cardozo G.
ISSN
0173-5373
Statut éditorial
Publié
Date de publication
2013
Volume
34
Numéro
4
Pages
551 - 565
Langue
anglais
Résumé
Understanding factors that shape ranges of species is central in evolutionary biology. Species distribution models have become important tools to test biogeographical, ecological and evolutionary hypotheses. Moreover, from an ecological and evolutionary perspective, these models help to elucidate the spatial strategies of species at a regional scale. We modelled species distributions of two phylogenetically, geographically and ecologically close Tupinambis species (Teiidae) that occupy the southernmost area of the genus distribution in South America. We hypothesized that similarities between these species might have induced spatial strategies at the species level, such as niche differentiation and divergence of distribution patterns at a regional scale. Using logistic regression and MaxEnt we obtained species distribution models that revealed interspecific differences in habitat requirements, such as environmental temperature, precipitation and altitude. Moreover, the models obtained suggest that although the ecological niches of Tupinambis merianae and T. rufescens are different, these species might co-occur in a large contact zone. We propose that niche plasticity could be the mechanism enabling their co-occurrence. Therefore, the approach used here allowed us to understand the spatial strategies of two Tupinambis lizards at a regional scale.
Mots-clé
environmental factors, evolutionary ecology, niche differentiation, sister species, species distribution modelling, sympatric zone
Web of science
Création de la notice
14/11/2013 10:53
Dernière modification de la notice
03/03/2018 18:49
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