NATURAL-SELECTION ON MULTIVARIATE TRAITS IN AGE-STRUCTURED POPULATIONS
NATURAL-SELECTION ON MULTIVARIATE TRAITS IN AGE-STRUCTURED POPULATIONS
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DOI：
10.1098/rspb.1993.0007
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发表时间：
1993-01-22
影响因子：
4.7
通讯作者：
CHARLESWORTH, B
中科院分区：
文献类型：
--
作者：
CHARLESWORTH, B
年龄结构群体中多变量性状选择理论对生活史进化的经验和理论研究具有重要意义。本文利用前人在单基因座选择上的工作，导出了一组具有年龄结构的相关数量性状的自然选择模型。这个公式提供了一个方程的变化是准确的选择是弱的，并不要求人口总是在人口平衡的选择过程中的一个向量的性状的平均值。处理扩展到密度依赖的人口，并根据频率依赖的选择平衡人口。此外，还推导出了进一步的近似值，这些近似值产生的进化平衡相当于优化和进化稳定策略（ESS）理论预测的进化平衡。它表明，平衡的条件是有效的，即使选择是强的。
The theory of selection on multivariate traits in age-structured populations has important implications for empirical and theoretical studies of life-history evolution. A model of natural selection on a set of correlated quantitative traits with age structure is derived here, using an extension of previous work on selection at a single locus. This formulation provides an equation for the change of the mean of a vector of traits that is accurate is selection is weak, and does not require the population always to be in demographic equilibrium as selection proceeds. The treatment is extended to density-dependent populations, and to equilibrium populations under frequency-dependent selection. In addition, further approximations are derived that produce evolutionary equilibria equivalent to those predicted by optimization and evolutionarily stable strategy (ESS) theory. It is shown that the conditions for equilibrium are valid even if selection is strong.