Allelopathy in spatially distributed populations
Allelopathy in spatially distributed populations
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DOI：
10.1006/jtbi.1996.0292
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发表时间：
1997-03-21
影响因子：
2
通讯作者：
Levin, S
中科院分区：
文献类型：
--
作者：
Durrett, R;Levin, S
在均匀混合的大肠杆菌群体中，大肠杆菌素产生策略和大肠杆菌素敏感策略在一定参数范围内可能都是进化稳定的，竞争的结果由初始条件决定。相反，在空间结构的种群中，对于任何给定的一组参数，都有一个唯一的ESS；结果取决于化感作用的效果与其成本的关系。此外，在空间结构的环境中，粘菌素敏感型、高粘菌素产生型和在粘菌素生产上花费较少但具有抗性的“作弊者”之间可能维持动态平衡。(C) 1997学术出版社有限公司
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. (C) 1997 Academic Press Limited.