title: Ess-theory for finite populations.
abstract: On the basis of some principles from the philosophy of science, the inadequacy of the ESS-theory as introduced by Maynard Smith and Price as a biological theory is discussed, and an improved ESS-theory for finite populations is presented which can adopt the ideas of the original formalism, although modified. Resulting are explicit conditions on the population sizes that ensure certain strategies to be evolutionarily stable.
mesh_terms: D005075:Biological Evolution; D005716:Game Theory; D006801:Humans; D010684:Philosophy; D011153:Population