Evolution of dispersal distance
Rick Durrett and Daniel Remenik
Abstract.
The problem of how often to disperse in a randomly fluctuating environment has long been investigated, primarily using patch models with uniform dispersal. Here, we consider the problem of choice of seed size for plants in a stable environment when there is a trade off between survivability and dispersal range. Ezoe (1998) and Levin and Muller-Landau (2000) approached this problem using models that were essentially deterministic, and used calculus to find optimal dispersal parameters. Here we follow Hiebeler (2004) and use a stochastic spatial model to study the competition of different dispersal strategies. Most work on such systems is done by simulation or nonrigorous methods such as pair approximation. Here, we use machinery developed by Cox, Durrett, and Perkins (2011) to rigorously and explicitly compute evolutionarily stable strategies.
Preprint Journal of Mathematical Biology, to appear
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