Stochastic game dynamics under demographic fluctuations.

ABSTRACT: Frequency-dependent selection and demographic fluctuations play important roles in evolutionary and ecological processes. Under frequency-dependent selection, the average fitness of the population may increase or decrease based on interactions between individuals within the population. This should be reflected in fluctuations of the population size even in constant environments. Here, we propose a stochastic model that naturally combines these two evolutionary ingredients by assuming frequency-dependent competition between different types in an individual-based model. In contrast to previous game theoretic models, the carrying capacity of the population, and thus the population size, is determined by pairwise competition of individuals mediated by evolutionary games and demographic stochas

SUBMITTER: Huang W 

PROVIDER: S-EPMC4517200 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature