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The evolutionarily stable strategy under individual condition and tactic frequency

✍ Scribed by Joe Repka; Mart R. Gross


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
292 KB
Volume
176
Category
Article
ISSN
0022-5193

No coin nor oath required. For personal study only.

✦ Synopsis


A proof is presented to show that, when fitnesses from alternative tactics within a population depend on both their frequency and the phenotypic condition of individuals, there will be a unique ESS switchpoint s* that determines both the condition at which an individual will switch between tactics and the resulting frequency of the tactics in the population. For an individual at the ESS s*, the fitnesses of the alternative tactics will be equal. When fitness is averaged over the population, however, the average fitnesses of the alternative tactics will not be equal.