A GENERAL MODEL OF OPTIMAL REPRODUCTION IN A RANDOMLY VARYING ENVIRONMENT
A GENERAL MODEL OF OPTIMAL REPRODUCTION IN A RANDOMLY VARYING ENVIRONMENT
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DOI：
10.2307/2258075
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发表时间：
1968-01-01
影响因子：
5.5
通讯作者：
COHEN, D
中科院分区：
文献类型：
--
作者：
COHEN, D
用一个简化的模型来描述随机变化环境中的繁殖行为优化问题。文中讨论了两个例子：动物的最佳繁殖分数和种子和孢子的最佳萌发分数。结果包括两个选择之间的优势的条件，以及计算最优混合策略的方法。并给出了数值算例。主要的发现是，一个混合策略，即当只有一小部分人口繁殖，成为最优的时候，繁殖和不繁殖的结果的变异性增加相对于他们的手段之间的差异。
The optimization of reproductive behavior in a randomly varying environment is represented by a simplified model. Two examples are discussed: the optimal reproducing fraction in animals and the optimal germinating fraction in seeds and spores. The results include the conditions for dominance between the 2 choices, and a method for computing an optimal mixed strategy. Some numerical examples are included. The main finding is that a mixed strategy, i.e. when only a fraction of the population reproduces, becomes optimal when the variability of the outcomes of reproducing and of not reproducing increases relative to the difference between their means.