Bridging Inter- and Intraspecific Trait Evolution with a Hierarchical Bayesian Approach.

Détails

ID Serval
serval:BIB_8BEFF5A5A573
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Bridging Inter- and Intraspecific Trait Evolution with a Hierarchical Bayesian Approach.
Périodique
Systematic biology
Auteur(s)
Kostikova A., Silvestro D., Pearman P.B., Salamin N.
ISSN
1076-836X (Electronic)
ISSN-L
1063-5157
Statut éditorial
Publié
Date de publication
05/2016
Peer-reviewed
Oui
Volume
65
Numéro
3
Pages
417-431
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
The evolution of organisms is crucially dependent on the evolution of intraspecific variation. Its interactions with selective agents in the biotic and abiotic environments underlie many processes, such as intraspecific competition, resource partitioning and, eventually, species formation. Nevertheless, comparative models of trait evolution neither allow explicit testing of hypotheses related to the evolution of intraspecific variation nor do they simultaneously estimate rates of trait evolution by accounting for both trait mean and variance. Here, we present a model of phenotypic trait evolution using a hierarchical Bayesian approach that simultaneously incorporates interspecific and intraspecific variation. We assume that species-specific trait means evolve under a simple Brownian motion process, whereas species-specific trait variances are modeled with Brownian or Ornstein-Uhlenbeck processes. After evaluating the power of the method through simulations, we examine whether life-history traits impact evolution of intraspecific variation in the Eriogonoideae (buckwheat family, Polygonaceae). Our model is readily extendible to more complex scenarios of the evolution of inter- and intraspecific variation and presents a step toward more comprehensive comparative models for macroevolutionary studies.

Mots-clé
Bayes Theorem, Biological Evolution, Classification/methods, Phenotype, Phylogeny, Polygonaceae/classification, Species Specificity, Comparative phylogenetics, Markov Chain Monte Carlo, hierarchical Bayesian model, intraspecific variance, macroevolution, niche breadth
Pubmed
Web of science
Open Access
Oui
Création de la notice
27/02/2016 19:43
Dernière modification de la notice
08/05/2019 21:44
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