Attitudinal reciprocity in food sharing among brown capuchin monkeys
Attitudinal reciprocity in food sharing among brown capuchin monkeys
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DOI：
10.1006/anbe.2000.1471
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发表时间：
2000-08-01
期刊：
影响因子：
2.5
通讯作者：
De Waal, FBM
中科院分区：
文献类型：
--
作者：
De Waal, FBM
卷尾猴(Cebus Apella)共享食物，即使被网状束缚分开。将成对的卷尾猴移入试验室，其中一只接受苹果块20分钟，另一对接受胡萝卜块20分钟。此前的研究表明，雌雄两体之间的食物双向转移率之间存在相关性。本研究证实了这一结果。然而，可以通过两个个体之间的从属和容忍倾向的对称性来解释相互作用，前提是这些倾向决定了食物的分享。本研究旨在排除这种基于对称性的解释，对每对成年雌性(N=16)在六个不同的场合进行测试。在两个二元方向的分享测试中，存在显著的协变，这一结果无法用关系对称性来解释。此外，控制程序(即，在没有伴侣的情况下测试食物拥有者，或测试两个同时食用相同食物或两种不同食物的人)表明，食物试验期间的行为不能完全用相互吸引或厌恶来解释。猴子会考虑自己和伴侣的食物质量，主人会限制高质量食物的转让。不是基于对称性的互惠解释，而是提出了记忆的中介作用，并反映了伴侣之间的社会态度。(C)2000年动物行为研究协会。
Capuchin monkeys (Cebus apella) share food even if separated by a mesh restraint. Pairs of capuchins were moved into a test chamber in which one of them received apple pieces for 20 min, and the other received carrot pieces for the next 20 min. Previous research had shown a correlation between the rate of food transfer in both directions across female-female dyads. The present study confirmed this result. Reciprocity across dyads can be explained, however, by symmetry in affiliative and tolerant tendencies between two individuals, provided these tendencies determine food sharing. The present study was designed to exclude this symmetry-based explanation by testing each pair (N=16) of adult females on six separate occasions. There existed a significant covariation across tests of sharing in both dyadic directions, a result unexplained by relationship symmetry. Moreover, control procedures (i.e. testing of a food possessor without a partner, or testing of two individuals with the same food or two different foods at the same time) indicated that behaviour during food trials is not fully explained by mutual attraction or aversion. The monkeys take the quality of their own and the partner's food into account, and possessors limit transfers of high-quality foods. Instead of a symmetry-based reciprocity explanation, a mediating role of memory is suggested, and a mirroring of social attitude between partners. (C) 2000 The Association for the Study of Animal Behaviour.