Math @ Duke

Publications [#243518] of Richard T. Durrett
Papers Published
 Durrett, R; Remenik, D, Evolution of dispersal distance.,
Journal of Mathematical Biology, vol. 64 no. 4
(March, 2012),
pp. 657666, ISSN 03036812 [doi]
(last updated on 2021/05/18)
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 (J Theor Biol 190:287293, 1998) and Levin and MullerLandau (Evol Ecol Res 2:409435, 2000) approached this problem using models that were essentially deterministic, and used calculus to find optimal dispersal parameters. Here we follow Hiebeler (Theor Pop Biol 66:205218, 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 etÂ al. (Voter model perturbations and reaction diffusion equations 2011) to rigorously and explicitly compute evolutionarily stable strategies.


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