DISPERSAL AND THE SEX-RATIO
DISPERSAL AND THE SEX-RATIO
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DOI：
10.1038/284448a0
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发表时间：
1980-01-01
期刊：
影响因子：
64.8
通讯作者：
TAYLOR, PD
中科院分区：
文献类型：
--
作者：
BULMER, MG;TAYLOR, PD
费舍尔已经证明，1：1的性别比例应该是进化稳定的，否则会有一个频率依赖的优势，以罕见的性别1。汉密尔顿指出，费舍尔的论点依赖于整个种群随机交配的假设，并表明，在一个模型中，交配发生在小的局部亚群内，然后交配的雌性在整个种群范围内分散，雌性偏向的性别比例是预期的。在这里，我们考虑的性别比在一些其他模型的扩散在一个地理结构的人口。
It has been shown by Fisher that a 1:1 sex ratio should be evolutionary stable as there would otherwise be a frequency-dependent advantage to the rarer sex1. Hamilton pointed out that Fisher's argument depends on the assumption of population-wide random mating, and showed that a female-biased sex ratio was expected in a model in which mating occurred within small local subgroups before population-wide dispersal of mated females. We consider here the sex ratio under some other models of dispersal in a geographically structured population.