EVOLUTION OF FIGHTING BEHAVIOR - DECISION RULES AND ASSESSMENT OF RELATIVE STRENGTH
EVOLUTION OF FIGHTING BEHAVIOR - DECISION RULES AND ASSESSMENT OF RELATIVE STRENGTH
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DOI：
10.1016/0022-5193(83)90376-4
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发表时间：
1983-01-01
影响因子：
2
通讯作者：
LEIMAR, O
中科院分区：
文献类型：
--
作者：
ENQUIST, M;LEIMAR, O
建立了格斗行为的数学模型。参赛者属于一个具有不同战斗能力的群体，战斗由一种类型的互动重复组成。在序列中的每一次交互中，对手都获得了一些关于真实战斗能力的信息。战斗被看作是每个对手通过因果因子空间的运动;动物在空间中的当前位置代表了动物迄今为止获得的所有信息。决策规则（策略）是在因果因子空间中的每个点上采取什么行动的规范。进化稳定策略[ESS]的数值计算和被发现是纯粹的和唯一的。的distribtion的战斗时间和获胜的概率计算成对的参赛者从人口使用的ESS。预期的效用也计算，并在调查的情况下，他们是相当接近的最大值，将获得如果有争议的资源之间平分参赛者没有任何成本。
A mathematical model of fighting behavior is developed. The contestants belong to a population with varying fighting abilities and the fights consist of the repetition of one type of interaction. At each interaction in the sequence the opponents acquire some information about the true fighting abilities. The fights are seen as a motion of each of each opponent through a causal factor space; the current position of an animal in the sapce represents all information obtained by the animals so far. A decision rule (strategy) is a specification of what action to take at each point in the causal factor space. Evolutionarily stable strategies [ESS] are calculated numerically and are found to be pure and unique. The distribtion of fighting times and the probabilities of winning are calculated for pairs of contestants from a population using the ESS. Expected utilities are also computed and in the situations investigated they are fairly close to the maximum value that would be obtained if the contested resource were divided equally between the contestants without any cost.