论赖特的群体间选择机制。

On Wright's mechanism for intergroup selection.

作者信息

Harpending H, Rogers A

机构信息

Department of Anthropology, Pennsylvania State University, University Park 16802.

出版信息

J Theor Biol. 1987 Jul 7;127(1):51-61. doi: 10.1016/s0022-5193(87)80160-1.

DOI:10.1016/s0022-5193(87)80160-1

PMID:3669683

Abstract

A haploid model of Wright's (1945) intergroup selection is described. Several approximate analyses as well as Monte Carlo simulation show that Wright's mechanism leads to powerful selection for group advantageous traits in the face of strong local selection against them. Intergroup selection is favored by small local subpopulation size and by high, not low, rates of immigration into local groups, although the dependence on migration rate is not strong. These results and others cast doubt on the primacy of genic selfishness as a tenet of Darwinian theory.

摘要

描述了赖特（1945年）群体间选择的单倍体模型。几种近似分析以及蒙特卡洛模拟表明，面对针对群体有利性状的强烈局部选择，赖特的机制会导致对这些性状进行有力的选择。群体间选择受到当地小亚群体规模以及高而非低的迁入当地群体的移民率的青睐，尽管对移民率的依赖性不强。这些结果以及其他结果对基因自私性作为达尔文理论的一个原则的首要地位提出了质疑。