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Mean Fitness Increases when Fitnesses are Additive

Abstract

FISHER'S fundamental theorem of natural selection1 states that for a random mating population with fitnesses dependent on the genetic constitution at a single locus, the mean fitness of the population increases with time. This is true for an arbitrary number of possible alleles at the locus and for arbitrary fitness values.

References

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EWENS, W. Mean Fitness Increases when Fitnesses are Additive. Nature 221, 1076 (1969). https://doi.org/10.1038/2211076a0

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  • DOI: https://doi.org/10.1038/2211076a0

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