Diferentes tipos de competencia
Abstract
We propose a generalization of the models by Caswell and Coleen (1990, 1991) and Barradas and Cohen (1994). These models are used to explain the coexistence of competing species, and to define different kinds of cornpetition among species. We show that this kind of model allows one to define differentforms of competition in a more precise way than the traditional models of population dynamics. We also discuss the fact that biodiversity of an ecosystem seemss to reach maximum levels in disturbad environments if the disturbances are of intermediate frequency. If disturbance frequency is loo high or too low, biodiversity tends to decrease. Finally, we make a qualitative comparison of the effect of each kind of competition on the equilibrium levels of the species involved.
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