Abstract
For a given set of gametes, population structure is the controlling factor determining the array of genotypes exposed to selective forces. This array reflects the combined effects of genotype frequencies, mating preferences, and mate availability, as well as any changes in age distributions of fertile adults or availability of breeding sites. Because the extent of the array of genotypes may either enhance or render ineffective a particular mode of selection, population genetic theory always incorporates a statement specifying the population structure. Models developed from “conditions of random pairing of gametes” are useful as a first step for understanding selection forces, but ultimately such oversimplifications of population structure must be revised to better agree with the complexities of actual situations in nature. Evidence available from a variety of sources indicates that existing theory does not adequately account for non-random mating of several forms.
This paper is dedicated to Professor Th. Dobzhansky in honor of his long leadership in evolutionary genetics and of his pioneering efforts in ecological genetics of Drosophila.
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Richardson, R.H. (1970). Models and Analyses of Dispersal Patterns. In: Kojima, Ki. (eds) Mathematical Topics in Population Genetics. Biomathematics, vol 1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-46244-3_3
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