Kobayashi Yutaka, Yamamura Norio
Center for Ecological Research, Kyoto University, Otsu, Shiga 520-2113, Japan.
Theor Popul Biol. 2007 Mar;71(2):174-81. doi: 10.1016/j.tpb.2006.12.001. Epub 2006 Dec 9.
Calculations to derive effective population size become highly complicated when complex population structure is considered. We provide an easy method of computing the effective size of a subdivided population with overlapping generations (a spatiotemporally structured population) using an approximation based on separation of time scales. We also numerically compute the effective size to verify the accuracy of the derived formula. Various interesting quantities, including moments of coalescent time, are readily derived using this approach.
当考虑复杂的种群结构时，推导有效种群大小的计算会变得极其复杂。我们提供了一种简单的方法，通过基于时间尺度分离的近似来计算具有重叠世代的细分种群（时空结构化种群）的有效大小。我们还通过数值计算有效大小来验证所推导公式的准确性。使用这种方法可以很容易地推导出各种有趣的量，包括合并时间的矩。
