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Published on: January 18, 2014
A discrete stage-structured two-species competition model with sexual and clonal reproduction
1Department of Mathematics, University of Louisiana at Lafayette, Lafayette, LA 70504, USA. pxz2351@louisiana.edu
Abstract:
In this paper, we analyse a discrete stage-structured model which is a generalization of the two-species competition model studied in [2]. Motivated by plant populations, each species is assumed to reproduce both sexually and clonally. We show that this model has a dynamical behaviour that is similar to that of the classical continuous two-dimensional Lotka-Volterra model under weak nonlinearities of the Beverton-Holt type. By allowing the species to have different competition efficiencies, we show that it is possible to obtain different dynamics including coexistence, bistability and competitive exclusion, in contrast with the model studied in [2], which exhibits only competitive exclusion behaviour.
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