Competition and coexistence in a multi-species grazing system
نویسندگان
چکیده
منابع مشابه
Interference competition and species coexistence.
Interference competition is ubiquitous in nature. Yet its effects on resource exploitation remain largely unexplored for species that compete for dynamic resources. Here, I present a model of exploitative and interference competition with explicit resource dynamics. The model incorporates both biotic and abiotic resources. It considers interference competition both in the classical sense (i.e. ...
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We present properties of Lotka-Volterra equations describing ecological competition among a large number of interacting species. First we extend previous stability conditions to the case of a non-homogeneous niche space, i.e. that of a carrying capacity depending on the species trait. Second, we discuss mechanisms leading to species clustering and obtain an analytical solution for a state with ...
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A model is developed for the coexistence and exclusion of species over a region of similar habitable patches. Since the balance of local extinction and colonization would leave some patches unoccupied even without competitors, species may coexist even when all the patches are the same. Regional competition coefficients are found when species affect the local extinction or migration rates of eac...
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It is a mainstay of community ecology that local exclusion of species will result if competitive pressures become too large. The pattern of exclusion may be complicated, but the qualitative orthodoxy has changed little since the pioneering work of Lotka, Volterra, and Gause--no two species can occupy the same niche. Stated in a more precise form, the higher the intensity of interspecific compet...
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JEFFREY EDMUNDS*, J. M. CUSHING†, R. F. COSTANTINO‡, SHANDELLE M. HENSON§, BRIAN DENNIS¶ and R. A. DESHARNAIS** * Department of Mathematics, Mary Washington College, Fredericksburg, VA, 22401; † Department of Mathematics, Interdisciplinary Program in Applied Mathematics, University of Arizona, Tucson, AZ, 85721; ‡ Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ...
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ژورنال
عنوان ژورنال: Acta Theriologica
سال: 1986
ISSN: 0001-7051,2190-3743
DOI: 10.4098/at.arch.86-26