Coexistence of cooperators and defectors in well mixed populations mediated by limiting resources

Details Coexistence of cooperators and defectors in well mixed populations mediated by limiting resources Coexistence of cooperators and defectors in well mixed populations mediated by limiting resources

2011-02-10

arxiv.org/abs/1102.2146v2

Biology

Quantitative Biology

Populations and Evolution

9 pages, 7 figures

Scientific paper

Traditionally, resource limitation in evolutionary game theory (EGT) is assumed just to impose a constant population size. Here we show that resource limitations may generate dynamical payoffs able to alter an original prisoner's dilemma (PD), and to allow for stable coexistence between unconditional cooperators and defectors in well-mixed populations. This is a consequence of a self-organizing process that turns the interaction payoff matrix into evolutionary neutral, and represents a resource-based control mechanism preventing the spread of defectors. To our knowledge, this is the first example of coexistence in well-mixed populations with a game structure different from a snowdrift game.

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