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A branching process model of evolutionary rescue.
Azevedo, Ricardo B R; Olofsson, Peter.
Afiliación
  • Azevedo RBR; Department of Biology and Biochemistry, University of Houston, Houston, TX, USA.
  • Olofsson P; Department of Mathematics, Physics and Chemical Engineering, Jönköping University, Sweden. Electronic address: peter.olofsson@ju.se.
Math Biosci ; 341: 108708, 2021 11.
Article en En | MEDLINE | ID: mdl-34560091
ABSTRACT
Evolutionary rescue is the process whereby a declining population may start growing again, thus avoiding extinction, via an increase in the frequency of fitter genotypes. These genotypes may either already be present in the population in small numbers, or arise by mutation as the population declines. We present a simple two-type discrete-time branching process model and use it to obtain results such as the probability of rescue, the shape of the population growth curve of a rescued population, and the time until the first rescuing mutation occurs. Comparisons are made to existing results in the literature in cases where both the mutation rate and the selective advantage of the beneficial mutations are small.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Evolución Biológica / Tasa de Mutación Idioma: En Revista: Math Biosci Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Evolución Biológica / Tasa de Mutación Idioma: En Revista: Math Biosci Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos
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