Natural selection and density-dependent population growth

R. A. Desharnais, Robert F Costantino

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Natural selection was studied in the context of density-dependent population growth using a single locus, continuous time model for the rates of change of population size and allele frequency. The maximization principle of density-dependent selection was applied to a class of fitness expressions with explicit recruitment and mortality terms. Three general results were obtained: First, at low population densities, the genetic basis of selection is the difference between the mean recruitment rate and the mean mortality rate. Second, at densities much higher than the equilibrium population size, selection is expected to act to minimize the mean mortality rate. Third, as the population approaches its equilibrium density, selection is predicted to maximize the ratio of the mean recruitment rate to the mean mortality rate.

Original languageEnglish (US)
Pages (from-to)1029-1040
Number of pages12
JournalGenetics
Volume105
Issue number4
StatePublished - 1983
Externally publishedYes

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Genetic Selection
Population Growth
Population Density
Mortality
Population Genetics
Gene Frequency
Population

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Natural selection and density-dependent population growth. / Desharnais, R. A.; Costantino, Robert F.

In: Genetics, Vol. 105, No. 4, 1983, p. 1029-1040.

Research output: Contribution to journalArticle

Desharnais, RA & Costantino, RF 1983, 'Natural selection and density-dependent population growth', Genetics, vol. 105, no. 4, pp. 1029-1040.
Desharnais, R. A. ; Costantino, Robert F. / Natural selection and density-dependent population growth. In: Genetics. 1983 ; Vol. 105, No. 4. pp. 1029-1040.
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