On the product mean fitness and population growth in sexual and asexual populations

H. Manos, U. Liberman, Marcus W. Feldman

Research output: Contribution to journalArticlepeer-review

Abstract

We examine situations that have frequently been invoked as advantageous for sex. In a constant environment with one diallelic locus determining viability that differs between the sexes, complete genotypic frequency dynamics are obtained in a symmetric case. The product of male and female mean fitnesses may not increase over time. In models with periodic or random environments, the numbers of sexuals and asexuals in pure populations of each can be compared. In agreement with previous studies, sexual populations are shown to grow at a faster rate than asexual populations.

Original languageEnglish
Pages (from-to)525-545
Number of pages21
JournalEvolutionary Ecology Research
Volume2
Issue number4
StatePublished - May 2000

Keywords

  • Failure of optimality
  • Global stability
  • Multiple equilibria
  • Population size
  • Random environments

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