Hunter-gatherer multilevel sociality accelerates cumulative cultural evolution
Hunter-gatherer multilevel sociality accelerates cumulative cultural evolution
复制标题
狩猎采集者的多层次社会性加速了累积的文化进化
DOI：
10.1126/sciadv.aax5913
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发表时间：
2020-02-01
期刊：
影响因子：
13.6
通讯作者：
Vinicius, Lucio
中科院分区：
文献类型：
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作者：
Migliano, Andrea B.;Battiston, Federico;Vinicius, Lucio
尽管多层次社会性是人类社会组织的普遍特征，但其功能相关性尚不清楚。在这里，我们通过使用无线传感技术来绘制Agta狩猎-采集者之间的带内和带内社会网络，来研究多层社会性对累积文化进化的影响。通过模拟真实的Agta多点网络中文化创新的积累，我们证明了多层次的社会性加速了文化分化和累积的文化进化。我们的结果表明，狩猎-采集社会结构[基于(1)营地和区域内营地内家庭的聚集性，(2)亲属网络内的文化传播，以及(3)营地间的高度流动性]可能使过去和现在的狩猎-采集者在人口密度低的情况下保持累积的文化适应，这一特征可能对促进智人的全球扩张至关重要。
Although multilevel sociality is a universal feature of human social organization, its functional relevance remains unclear. Here, we investigated the effect of multilevel sociality on cumulative cultural evolution by using wireless sensing technology to map inter- and intraband social networks among Agta hunter-gatherers. By simulating the accumulation of cultural innovations over the real Agta multicamp networks, we demonstrate that multilevel sociality accelerates cultural differentiation and cumulative cultural evolution. Our results suggest that hunter-gatherer social structures [based on (i) clustering of families within camps and camps within regions, (ii) cultural transmission within kinship networks, and (iii) high intercamp mobility] may have allowed past and present hunter-gatherers to maintain cumulative cultural adaptation despite low population density, a feature that may have been critical in facilitating the global expansion of Homo sapiens.