Gestural repertoire size is associated with social proximity measures in wild chimpanzees
Gestural repertoire size is associated with social proximity measures in wild chimpanzees
复制标题
野生黑猩猩的手势动作大小与社交接近度相关
DOI：
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发表时间：
2019
影响因子：
2.4
通讯作者：
S. Roberts
中科院分区：
文献类型：
--
作者：
A. Roberts;Anwesha Chakrabarti;S. Roberts
研究灵长类动物的交流系统可以深入了解人类语言的进化起源。一些理论认为，语言的进化是为了帮助满足管理复杂社会关系的需求。检查类人猿的社交性和交流之间的关联有助于确定对语言进化可能很重要的特定选择压力。特别是，手势交流被认为很重要，因为这是一种相对较新的特征，仅在灵长类动物，特别是类人猿中出现。然而，与不太复杂的手势交流相比，更复杂的手势交流在管理社会关系中发挥作用的程度尚不清楚。利用社交网络分析，我们研究了野生黑猩猩 (Pan troglodytes schweinfurthii) 的复杂手势（以技能大小为索引）与以邻近度为索引的社会关系复杂性（在 10 米内停留的时间，每小时在同一方中花费的时间）之间的关联。动作大小（焦点对象对其他个体产生的手势类型总数）和二元动作大小（每小时 10 米内对二元伙伴产生的手势类型数量）分别与群体层面的接近度（邻近网络的中心性）和二元组（二元组之间的邻近持续时间）呈正相关。此外，视觉和听觉短程手势的曲目大小与接近度呈正相关，而触觉手势的曲目大小与接近度呈负相关。总体而言，这些结果表明，手势技能的大小对于维持野生黑猩猩的社会关系具有重要意义，更广泛地说，手势交流可能在语言进化中发挥了重要作用。
Studying the communication systems of primates can provide insights into the evolutionary origins of human language. Some theories propose that language evolved to help meet the demands of managing complex social relationships. Examining the associations between sociality and communication in the great apes can help to identify the specific selection pressures that may have been important for language evolution. In particular, gestural communication is believed to be important because it is a relatively recent trait seen only in primates and particularly in the great apes. However, the extent to which more complex gestural communication plays a role in managing social relationships, as compared to less complex gestural communication, is not well understood. Using social network analysis, we examined the association between complex gesturing (indexed as repertoire size) and complexity of social relationships indexed as proximity (the duration of time spent within 10 m, per hour spent in same party) in wild chimpanzees (Pan troglodytes schweinfurthii). Repertoire size (the total number of gesture types a focal subject produced toward other individuals) and dyadic repertoire size (the number of gesture types produced toward the dyad partner, per hour spent within 10 meters) were positively associated with proximity at the level of the group (centrality in the proximity network) and the dyad (proximity duration between dyads), respectively. Further, the repertoire size of visual and auditory short‐range gestures was positively associated with proximity, while the repertoire size of tactile gesture was negatively associated with proximity. Overall these results suggest that gestural repertoire size has important implications for maintaining social relationships in wild chimpanzees and more broadly that gestural communication may have played an important role in language evolution.
黑猩猩的食物呼叫是针对特定个体的
影响因子：
2.5
作者：
Schel A
通讯作者：
Schel A