Trade-off geometries and frequency-dependent selection

被引:127
作者
de Mazancourt, C [1 ]
Dieckmann, U
机构
[1] Int Inst Appl Syst Anal, Adapt Dynam Network, A-2361 Laxenburg, Austria
[2] Univ London Imperial Coll Sci Technol & Med, Dept Biol Sci, Ascot SL5 7PY, Berks, England
[3] Univ London Imperial Coll Sci Technol & Med, Ctr Populat Biol, Natl Environm Res Council, Ascot SL5 7PY, Berks, England
关键词
trade-offs; frequency-dependent selection; fitness sets; invasion fitness; adaptive dynamics; curvature;
D O I
10.1086/424762
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Life-history evolution is determined by the interplay between natural selection and adaptive constraints. The classical approach to studying constrained life-history evolution - Richard Levins's geometric comparison of fitness sets and adaptive functions is applicable when selection pressures are frequency independent. Here we extend this widely used tool to frequency-dependent selection. Such selection pressures vary with a population's phenotypic composition and are increasingly recognized as ubiquitous. Under frequency dependence, two independent properties have to be distinguished: evolutionary stability ( an evolutionarily stable strategy cannot be invaded once established) and convergence stability ( only a convergence stable strategy can be attained through small, selectively advantageous steps). Combination of both properties results in four classes of possible evolutionary outcomes. We introduce a geometric mode of analysis that enables predicting, for any bivariate selection problem, evolutionary outcomes induced by trade-offs of given shape, shapes of trade-offs required for given evolutionary outcomes, the set of all evolutionary outcomes trade-offs can induce, and effects of ecological parameters on evolutionary outcomes independent of trade-off shape.
引用
收藏
页码:765 / 778
页数:14
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