When environmental variation short-circuits natural selection
When environmental variation short-circuits natural selection
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DOI：
10.1016/s0169-5347(03)00073-9
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发表时间：
2003-05-01
影响因子：
16.8
通讯作者：
Sheldon, BC
中科院分区：
文献类型：
--
作者：
Kruuk, LEB;Merilä, J;Sheldon, BC
发展出一个连贯的框架来衡量自然选择是20世纪70年代和80年代进化生物学的主要进展之一。然而，要发生进化，自然选择必须作用于潜在的遗传变异，而大多数自然选择的测量仅限于表型。两篇新的论文表明，环境引起的表型和适应性之间的协方差往往会导致系统高估自然选择的力量。
The development of a coherent framework for measuring natural selection was one of the major advances in evolutionary biology in the 1970s and 1980s. However, for evolution to occur, natural selection must act on underlying genetic variation, whereas most measurements of natural selection are limited to phenotypes. Two new papers now show that environmentally induced covariances between phenotypes and fitness can frequently lead to the systematic overestimation of the strength of natural selection.