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J Theor Biol. 1997 Mar 21;185(2):165-71.

Allelopathy in Spatially Distributed Populations

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1
Department of Mathematics, Cornell University, Ithaca, NY, 14853, U.S.A.

Abstract

In a homogeneously mixing population of E. coli, colicin-producing and colicin-sensitive strategies both may be evolutionarily stable for certain parameter ranges, with the outcome of competition determined by initial conditions. In contrast, in a spatially-structured population, there is a unique ESS for any given set of parameters; the outcome is determined by how effective allelopathy is in relation to its costs. Furthermore, in a spatially-structured environment, a dynamic equilibrium may be sustained among a colicin-sensitive type, a high colicin-producing type, and a "cheater" that expends less on colicin production but is resistant. Copyright 1997 Academic Press Limited

PMID:
9344720
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