An ESS model for divorce strategies in birds
An ESS model for divorce strategies in birds
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鸟类离婚策略的 ESS 模型
DOI：
10.1098/rstb.1999.0374
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
A. Lang
中科院分区：
文献类型：
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作者：
J. McNamara;P. Forslund;A. Lang
我们提出了一个离婚的理论研究。这些论点是以鸟类为例的，但应该适用于其他生物群体。我们模拟了一个种群，其中有一系列的男性和女性的素质，并决定是否离婚是由育种对的两个成员。在基线情况下，一对的繁殖成功是雄性和雌性质量的加性，但我们也考虑了质量相互作用的影响。新配偶的可获得性取决于所有种群成员的离婚策略。我们允许的可能性，配偶选择是联想的质量，虽然我们没有明确的模型的配偶选择过程。利用一个包含这些因素的博弈论模型，我们研究了以下问题：进化稳定策略的形式，以及这种策略对繁殖对质量相关性和未配对个体之间质量分布的影响;个体一生中的离婚率、繁殖成功率和配偶质量变化，以及这些质量对个体质量的依赖性;平均人口离婚率及其对离婚费用、寿命和两性质量差异程度的依赖;离婚的发起者和离婚前后的生育成功率。
We present a theoretical investigation of divorce. Arguments are couched in terms of birds, but should be applicable to other groups of organisms. We model a population in which there is a range of both male and female qualities, and decisions on whether to divorce are made by both members of a breeding pair. The reproductive success of a pair is additive in male and female qualities in the baseline case, but we also consider the effect of quality interactions. The availability of new mates depends on the divorce strategy of all population members. We allow for the possibility that mate choice is associative in quality, although we do not explicitly model the mate choice process. Using a game–theoretical model which incorporates these factors we investigate the following issues: the form of the evolutionary stable strategy, and the implications of this strategy for quality correlations in breeding pairs and for the distribution of qualities among unpaired individuals; divorce rates, reproductive success and mate quality changes over the lifetime of an individual, and the dependence of these qualtities on the individual's quality; mean population divorce rates and their dependence on costs of divorce, longevity and the extent of quality variation in the two sexes; initiators of divorce and reproductive success before and after divorce.