Titre :

The evolution of the competition– dispersal trade-off affects alpha-and beta-diversity in a heterogeneous metacommunity

Auteur(s) :

Laroche, Fabien [Auteur]
AgroParisTech
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]
Department of Ecology
Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture [IRSTEA]
Jarne, Philippe [Auteur]
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]
Perrot, Thomas [Auteur]
Centre d'Études Biologiques de Chizé - UMR 7372 [CEBC]
AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement
Massol, Francois [Auteur]
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]

Titre de la revue :

Proceedings of the Royal Society B: Biological Sciences

Pagination :

20160548

Éditeur :

Royal Society, The

Date de publication :

2016

ISSN :

0962-8452

Mot(s)-clé(s) :

COALESCENCE
T STATISTICS

Mot(s)-clé(s) en anglais :

EVOLUTIONNARY BRANCHING
NEUTRAL THEORY

Discipline(s) HAL :

Sciences du Vivant [q-bio]/Génétique/Génétique des populations [q-bio.PE]

Résumé en anglais : [en]

Difference in dispersal ability is a key driver of species coexistence in metacommunities. However, the available frameworks for interpreting species diversity patterns in natura often overlook trade-offs and evolutionary ...
Lire la suite >Difference in dispersal ability is a key driver of species coexistence in metacommunities. However, the available frameworks for interpreting species diversity patterns in natura often overlook trade-offs and evolutionary constraints associated with dispersal. Here,we build a metacommunity model accounting for dispersal evolution and a competition-dispersal trade-off. Depending on the distribution of carrying capacities among communities, species dispersal values are distributed either around a single strategy (evolutionarily stable strategy, ESS), or around distinct strategies (evolutionary branching, EB). We show that limited dispersal generates spatial aggregation of dispersal traits in ESS and EB scenarios, and that the competition-dispersal trade-off strengthens the pattern in the EB scenario. Importantly, individuals in larger (respectively (resp.) smaller) communities tend to harbour lower (resp. higher) dispersal, especially under the EB scenario.We explore how dispersal evolution affects species diversity patterns by comparing those from our model to the predictions of a neutral metacommunity model. The most marked difference is detected under EB, with distinctive values of both alpha and beta diversity (e.g. the dissimilarity in species composition between small and large communities was significantly larger than neutral predictions). We conclude that, from an empirical perspective, jointly assessing community carrying capacity with species dispersal strategies should improve our understanding of diversity patterns in metacommunities.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Commentaire :

[Notes_IRSTEA]Article référencé sous : Article number 20160548 [Departement_IRSTEA]Territoires [TR1_IRSTEA]SEDYVIN

Collections :

• Évolution, Écologie et Paléontologie (Evo Eco Paleo) - UMR 8198

Source :

Harvested from HAL