Frequency Dependence and Competition [and Discussion]

Intraspecific competition implies interaction among the individuals of a population, so natural selection on genotypic variation in characters related to the competition will necessarily be frequency dependent. Intraspecific antagonistic competition exhibits properties similar to other behavioural i...

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Bibliographic Details
Published in:Philosophical transactions of the Royal Society of London. Series B, Biological sciences Biological sciences, 1988-07, Vol.319 (1196), p.587-600
Main Authors: Christiansen, F. B., Antonovics, J.
Format: Article
Language:English
Subjects:
Alleles
Animals
Behavior
Biological and medical sciences
Ecological competition
Evolution
Fundamental and applied biological sciences. Psychology
Gene Frequency
Genetic Variation
Genetics of eukaryotes. Biological and molecular evolution
Genotype
Genotypes
Interspecific competition
Intraspecific competition
Mathematics
Models, Genetic
Natural selection
Population density
Population size
Resource management
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Description
Summary:Intraspecific competition implies interaction among the individuals of a population, so natural selection on genotypic variation in characters related to the competition will necessarily be frequency dependent. Intraspecific antagonistic competition exhibits properties similar to other behavioural interactions between individuals. In exploitative intraspecific competition the interactions among individuals are less direct. Exploitation modifies the abundance of the various limiting resources according to the use of these resources by the individual members of the population. The amount of resource available to an individual is therefore a function of the phenotypes present in the population, through their density and frequency.
ISSN:0962-8436
0080-4622
1471-2970
2054-0280
DOI:10.1098/rstb.1988.0067