In the present chapter, we discuss two different approaches to model evolution. The first focuses on genes. The presence of different gene variations indicates different discrete levels of fitness, i.e., of reproductive success. We will look at this kind of models (Hardy-Weinberg, Wright model and Fisher-Wright-Haldane model) first. The second approach is not directly related to the genotype, but to the phenotype. The latter is assumed to vary continuously (e.g. as the average size of an individual of a species – this is a real value that may vary in principle continuously). Inspecting the performance of individuals with this phenotype, a certain kind of dynamics – adaptive dynamics – is developed that indicates how evolution will change the phenotype. In this way, phenotypes can be identified that are in particular effective. Adaptive dynamics claim that these are the phenotypes we observe.
Singular Point Gene Frequency Random Mating Rare Mutant Evolutionary Stable Strategy
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