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Extinction times and size of the surviving species in a two-species competition process

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Gómez-Corral, Antonio y López García, M. (2012) Extinction times and size of the surviving species in a two-species competition process. Journal of Mathematical Biology, 64 . pp. 255-289. ISSN 0303-6812

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Resumen

We investigate a stochastic model for the competition between two species. Based on percentiles of the maximum number of individuals in the ecosystem, we present an approximating model for which the extinction time can be thought of as a phase-type random variable. We determine formulae for the probabilities of extinction and the moments of the extinction time. We discuss the use of several quasi-stationary assumptions. We include a comparative study between existing asymptotic results, results obtained from a simulation of the process, and our solution.


Tipo de documento:Artículo
Palabras clave:Competition process · Extinction times · Quasi-stationary regime
Materias:Ciencias Biomédicas > Biología > Biomatemáticas
Código ID:15547
Depositado:08 Jun 2012 08:52
Última Modificación:08 Mar 2016 15:18

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