期刊
JOURNAL OF EVOLUTIONARY BIOLOGY
卷 27, 期 1, 页码 214-219出版社
WILEY
DOI: 10.1111/jeb.12266
关键词
cynipidae; phenotypic selection; selection gradient; variable selection
资金
- Sigma-Xi GIAR
- Southwestern Association of Naturalists, Texas State University
- FRSP grant from the University of Notre Dame
- Texas State University
We estimated linear () and nonlinear () selection gradients to quantify host plant-mediated selection on the trait gall size in each of 22 unequally sampled subpopulations of the cynipid gall wasp Belonocnema treatae. We characterized the relationship between variation in subpopulation sample size and the magnitude of and the variance among selection gradients. We then tested the hypothesis that the intraspecific patterns we observed would follow two patterns that have emerged from published estimates of linear and nonlinear selection gradients compiled across species, namely that the average magnitude of and and the variance among estimated and decrease with increasing sample size. For both and , intraspecific patterns of phenotypic selection in relation to sample size were not predicted by interspecific patterns. Thus, our results suggest that when selection is heterogeneous among subpopulations, variation in the biological basis for selection is more important in influencing estimates of selection than is variation in study size. Our study highlights the value of inspecting selection in relation to sampling effort at the level at which understanding the sources of variation in selection is most important, among populations within species.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据