Titre
Evolutionary branching in deme-structured populations.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Wakano, J.Y.
Auteure/Auteur
Lehmann, L.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1095-8541
Statut éditorial
Publié
Date de publication
2014
Volume
351
Première page
83
Dernière page/numéro d’article
95
Peer-reviewed
Oui
Langue
anglais
Résumé
Adaptive dynamics shows that a continuous trait under frequency dependent selection may first converge to a singular point followed by spontaneous transition from a unimodal trait distribution into a bimodal one, which is called "evolutionary branching". Here, we study evolutionary branching in a deme-structured population by constructing a quantitative genetic model for the trait variance dynamics, which allows us to obtain an analytic condition for evolutionary branching. This is first shown to agree with previous conditions for branching expressed in terms of relatedness between interacting individuals within demes and obtained from mutant-resident systems. We then show this branching condition can be markedly simplified when the evolving trait affect fecundity and/or survival, as opposed to affecting population structure, which would occur in the case of the evolution of dispersal. As an application of our model, we evaluate the threshold migration rate below which evolutionary branching cannot occur in a pairwise interaction game. This agrees very well with the individual-based simulation results.
PID Serval
serval:BIB_817690979587
PMID
Date de création
2014-03-01T09:26:57.789Z
Date de création dans IRIS
2025-05-21T02:40:25Z
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Nom
BIB_817690979587.P001.pdf
Version du manuscrit
published
Taille
2.11 MB
Format
Adobe PDF
PID Serval
serval:BIB_817690979587.P001
URN
urn:nbn:ch:serval-BIB_8176909795874
Somme de contrôle
(MD5):ff352bb266895dced052d0212baf985c