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PubMed · 1022833

Competition between phenotypes.

S Rocklin·G Oster
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Abstract

We present two models for phenotypic-dependent interspecific competition. In both cases the survivorship of individuals of one population depends on the entire phenotypic distribution of the other species. The first model considers a continuously varying metric trait, with assortative or random mating; the second model examines a character controlled by two alleles at a single locus. Pursuing the notion that each population maximizes its mean fitness we define a vector-optimum strategy using the concepts of cooperative and competitive optima. It is found that the dynamical constraints placed on the equations of motion by Mendelian genetics often prevent a population from evolving to a strategic optimum. However, for the single locus case with complete dominance, the competitive optimum always coincides with some dynamical equilibrium on the Hardy-Weinberg manifold.

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AllelesEcologyGene FrequencyGenotypeModels, BiologicalPhenotypePopulation DynamicsSelection, GeneticJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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S Rocklin, G Oster. 1976-11-25. Competition between phenotypes.. https://doi.org/10.1007/bf00275058

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