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Coexistence of competing populations along an environmental gradient

Titre :	Coexistence of competing populations along an environmental gradient : a simulation study Ajouter au panier
Auteur(s) :	T. Czaran, Auteur (et co-auteur)
Type de document :	Tiré à part
Sujets :	Dynamique des populations ; Modèle de simulation ; Compétition biologique
Résumé :	It has been repeatedly suggested by several kinds of competition models (island models, diffusion models and simulations of local dynamics) that spatially limited dispersion and local competition stabilize the regional coexistence of competing populations. Using a Monte Carlo simulation model, this work demonstrates that local dynamics alone is insufficient to allow stable coexistence of similar species: it is the environmental heterogeneity inherent in island models and most of the simulations that has the stabilizing effect. Increasing spatial inhomogeneity by the introduction of an environmental gradient and the corresponding response curves results in an increased tendency for stable regional coexistence of two annual plant populations.
Date de publication :	1989
Format :	pp. 113-120 / graph., réf.
Note(s) :	Extrait de Coenoses - Vol.4 - n°2
Langue(s) :	Anglais
Lien vers la notice :	https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=147649