THE EVOLUTION OF COOPERATION IN MOBILE ORGANISMS
THE EVOLUTION OF COOPERATION IN MOBILE ORGANISMS
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DOI：
10.1006/anbe.1993.1089
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发表时间：
1993-04-01
期刊：
影响因子：
2.5
通讯作者：
LEIMAR, O
中科院分区：
文献类型：
--
作者：
ENQUIST, M;LEIMAR, O
目前基于互惠的合作博弈论模型没有考虑到移动性使合作伙伴的主动转换成为可能。由于这种情况下不能理解通过一个重复的囚徒困境游戏，新的理论开发，认为目前的合作伙伴和访问其他合作伙伴。研究表明，移动性严重限制了合作的进化：一个有效的搭便车者可以快速移动通过一个合作的个人群体，寻找受害者剥削。社会环境的属性，如人口规模和密度，影响寻找搭便车的时间，从而影响合作进化的可能性。行为适应，如最初对陌生人的怀疑和闲聊，可能在某种程度上抵消了流动性的影响，有利于合作。搜索时间的可能的重要性说明巢共享和大小的巢聚集在球蜂之间的关系的比较数据。
Current game theory models of cooperation based on reciprocity do not take into account the active switching of partners made possible by mobility. Since such situations cannot be understood by means of a repeated Prisoner's Dilemma game, new theory is developed which considers both a current partner and the access to other partners. It is shown that mobility seriously restricts the evoluton of cooperation: an efficient free rider could move rapidly through a population of cooperative individuals, searching out victims to exploit. Properties of the social environment, such as population size and density, influence the search time for a free rider and thus the possibilities for the evolution of cooperation. Behavioural adaptations, such as initial suspiciousness towards strangers, and gossiping, may to some extent counteract the effects of mobility and favour cooperation. The possible importance of search time is illustrated by comparative data on the relationship between nest sharing and size of nest aggregations in sphecid wasps.