Kinship as a frequency dependent strategy.
Kinship as a frequency dependent strategy.
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亲属关系作为频率依赖策略
DOI：
10.1098/rsos.150632
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发表时间：
2016-02
影响因子：
3.5
通讯作者：
Tao Y
中科院分区：
文献类型：
--
作者：
Ji T;Zheng XD;He QQ;Wu JJ;Mace R;Tao Y
人类将自己划分为不同的文化，这是我们这个物种独特而普遍的特征。亲属关系规范是这种社会的决定性特征之一。本文利用中国西南地区的实际案例和一个进化博弈模型，展示了婚姻居住规范作为一种频率依赖策略是如何演变的。亲属关系变化的过程在过去和现在都发生在中国西南地区。我们的数据和模型显示了居住类型之间的转变是如何发生的，既可以作为与亲属共同居住的成本和收益变化的反应，也可以由于人口中其他人采用的策略的初始频率：父系社会可以变成母系社会，而新居地社会可以变成双居地。这说明了频率依赖性选择如何在维持群体层面的文化多样性和文化灭绝中发挥作用。
Humans divide themselves up into separate cultures, which is a unique and ubiquitous characteristic of our species. Kinship norms are one of the defining features of such societies. Here we show how norms of marital residence can evolve as a frequency-dependent strategy, using real-world cases from southwestern China and an evolutionary game model. The process of kinship change has occurred in the past and is also occurring now in southwestern China. Our data and models show how transitions between residence types can occur both as response to changing costs and benefits of co-residence with kin, and also due to the initial frequency of the strategies adopted by others in the population: patrilocal societies can become matrilocal, and neolocal societies can become duolocal. This illustrates how frequency-dependent selection plays a role both in the maintenance of group-level cultural diversity and in cultural extinction.