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Fecundity Selection and Maximization of Equilibrium Number

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image of Netherlands Journal of Zoology
For more content, see Archives Néerlandaises de Zoologie (Vol 1-17) and Animal Biology (Vol 53 and onwards).

Simultaneous recurrence equations for the dynamics and the genetics of a population are derived for two mating systems, random mating of gametes and random mating of individuals. In the last mating system, two expressions for fecundity per mating are used. For random mating of gametes, it has been shown that natural selection at equal male and female fitnesses leads to maximum equilibrium population size (ROUGHGARDEN, 1976). With random mating of individuals no such ecological analogue to the Fundamental Theorem of Natural Selection is generally valid. This can be ascribed to a violation of the assumption of independence of individuals throughout the life cycle.

Affiliations: 1: Vakgroep Populatie- en Evolutiebiologie, Rijksuniversiteit Utrecht, Padualaan 8, 3584 CH Utrecht, The Netherlands


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