Diffusion Dynamics of Socially Learned Foraging Techniques in Squirrel Monkeys
Diffusion Dynamics of Socially Learned Foraging Techniques in Squirrel Monkeys
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DOI：
10.1016/j.cub.2013.05.036
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发表时间：
2013-07-08
期刊：
影响因子：
9.2
通讯作者：
Whiten, Andrew
中科院分区：
文献类型：
--
作者：
Claidiere, Nicolas;Messer, Emily J. E.;Whiten, Andrew
近年来，社会网络分析[1-5]和社会学习的实验研究[6-10]各自成为动物行为研究的重要领域，但在很大程度上仍然是独立的。在这里，我们把它们放在一起，提供了社交网络如何塑造社会学习觅食技术的传播的第一个演示[11]。一种打开人造果实的技术被植入了一组松鼠猴中占主导地位的雄性，另一种技术被植入了第二组占主导地位的雄性。我们发现，这两种技术的传播优先在他们最初播种的群体，这一过程受到猴子的关联模式。特征向量中心性预测的速度与一个人将首先成功地打开人造水果和概率，他们将获得的文化变种种子在他们的群体。这些发现证明了社交网络在决定一种新的觅食技术如何在种群中扩散方面的积极作用。
Social network analyses [1-5] and experimental studies of social learning [6-10] have each become important domains of animal behavior research in recent years yet have remained largely separate. Here we bring them together, providing the first demonstration of how social networks may shape the diffusion of socially learned foraging techniques [11]. One technique for opening an artificial fruit was seeded in the dominant male of a group of squirrel monkeys and an alternative technique in the dominant male of a second group. We show that the two techniques spread preferentially in the groups in which they were initially seeded and that this process was influenced by monkeys' association patterns. Eigenvector centrality predicted both the speed with which an individual would first succeed in opening the artificial fruit and the probability that they would acquire the cultural variant seeded in their group. These findings demonstrate a positive role of social networks in determining how a new foraging technique diffuses through a population.