选择有利于社会蜘蛛的集体攻击性，有利于社会易感性。
Selection for Collective Aggressiveness Favors Social Susceptibility in Social Spiders.
机构信息
Department of Ecology, Evolution and Marne Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.
Department of Ecology, Evolution and Marne Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.
出版信息
Curr Biol. 2018 Jan 8;28(1):100-105.e4. doi: 10.1016/j.cub.2017.11.038. Epub 2017 Dec 21.
Particularly socially influential individuals are present in many groups [1-8], but it is unclear whether their emergence is determined by their social influence versus the social susceptibility of others [9]. The social spider Stegodyphus dumicola shows regional variation in apparent leader-follower dynamics. We use this variation to evaluate the relative contributions of leader social influence versus follower social susceptibility in driving this social order. Using chimeric colonies that combine potential leaders and followers, we discover that leader-follower dynamics emerge from the site-specific social susceptibility of followers. We further show that the presence of leaders increases colony survival in environments where leader-follower dynamics occur. Thus, leadership is driven by the "social susceptibility" of the population majority, rather than the social influence of key group members.
特别具有社会影响力的个体存在于许多群体中[1-8]，但尚不清楚他们的出现是由其社会影响力还是他人的社会易感性决定的[9]。社会性蜘蛛 Stegodyphus dumicola 在明显的头足类动物动态中表现出区域变异。我们利用这种变异来评估领导者的社会影响力与追随者的社会易感性在推动这种社会秩序方面的相对贡献。使用组合潜在领导者和追随者的嵌合体殖民地，我们发现头足类动物动态源自追随者的特定地点的社会易感性。我们进一步表明，在出现头足类动物动态的环境中，领导者的存在会提高殖民地的存活率。因此，领导力是由群体大多数的“社会易感性”驱动的，而不是关键群体成员的社会影响力。
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