Evolution of Dispersal Toward Fitness

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It is widely believed that the slowest dispersal strategy is selected in the evolutional if the environment is temporally invariant but spatially heterogeneous. Authors claim in this paper that this belief is true only if random dispersals with constant motility are considered. However, if a dispersal strategy with fitness property is included, the size of the dispersal is not such a crucial factor anymore. Recently, a starvation driven diffusion has been introduced by Cho and Kim (Bull. Math. Biol., 2013), which is a random dispersal strategy with a motility increase on starvation. The authors show that such a dispersal strategy has fitness property and that the evolutional selection favors fitness but not simply slowness. Such a conclusion is obtained from a stability analysis of a competition system between two phenotypes with different dispersal strategies of linear and starvation driven diffusions.
Publisher
SPRINGER
Issue Date
2013-12
Language
English
Article Type
Article
Keywords

IDEAL-FREE DISTRIBUTION; POPULATION-DYNAMICS; LARGE ADVECTION; ENVIRONMENTS; MODEL; EQUATIONS; RATES

Citation

BULLETIN OF MATHEMATICAL BIOLOGY, v.75, no.12, pp.2474 - 2498

ISSN
0092-8240
DOI
10.1007/s11538-013-9904-8
URI
http://hdl.handle.net/10203/189012
Appears in Collection
MA-Journal Papers(저널논문)
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