Frequency-dependent selection in a periodic environment

Robert Forster and Claus O. Wilke

Physica A: Statistical Mechanics and its Applications, 2007, vol. 381, issue C, 255-264

Abstract: We examine the action of natural selection in a periodically changing environment where two competing strains are specialists, respectively, for each environmental state. When the relative fitness of the strains is subject to a very general class of frequency-dependent selection, we show that coexistence rather than extinction is the likely outcome. This coexistence may be a stable periodic equilibrium, stable limit cycles of varying lengths, or be deterministically chaotic. Our model is applicable to the population dynamics commonly found in many types of viruses.

Keywords: Population dynamics; Virus evolution; Chaos (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:381:y:2007:i:c:p:255-264

DOI: 10.1016/j.physa.2007.03.017

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