Soft Selection, Hard Selection, Kin Selection, and Group Selection

@article{Wade1985SoftSH,
  title={Soft Selection, Hard Selection, Kin Selection, and Group Selection},
  author={Michael J. Wade},
  journal={The American Naturalist},
  year={1985},
  volume={125},
  pages={61 - 73}
}
  • M. Wade
  • Published 1 January 1985
  • Biology
  • The American Naturalist
In this paper I illustrate the theoretical relationship among several different models of selection in structured populations, soft selection, hard selection, kin selection, and group selection, by using the covariance formulations ofLi (1967) and Price (1970, 1972) to partition the operation of selection into withinand between-group components. This partitioning ofcovariance can be directly extended from the single-locus population genetic models derived in this paper to the description of… 

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...

References

SHOWING 1-10 OF 47 REFERENCES

EFFECT OF INBREEDING ON THE EVOLUTION OF ALTRUISTIC BEHAVIOR BY KIN SELECTION

  • M. WadeF. Breden
  • Biology
    Evolution; international journal of organic evolution
  • 1981
TLDR
Kin selection is defined as that evolutionary process which occurs when individuals interact with one another in a nonrandom way with respect to kinship and these interactions affect fitness and the presence or absence of discontinuities in the population breeding structure.

Evolution of interference competition by individual, family, and group selection.

  • M. Wade
  • Biology, Psychology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1982
TLDR
It is shown that any level of selection can be made to operate in concert with or in opposition to any other, depending upon the fitness effects of the behavior.

ON THE MEASUREMENT OF NATURAL AND SEXUAL SELECTION: APPLICATIONS

TLDR
This paper uses measures of selection developed by quantitative geneticists and some new results to analyze multiple episodes of selection in natural populations of amphibians, reptiles, and insects.

Inbreeding and evolution by kin selection

A Note on the Evolution of Altruism in Structured Demes

TLDR
It is shown that this source of excess variance is extremely unlikely to allow a rare gene for altruism to spread, and that restrictions on interbreeding between trait groups are also incapable of promoting the evolution of altruism with this model.

Evolution of interactions in family-structured populations: mixed mating models.

TLDR
It appears from the results presented that inbreeding facilitates most forms of altruism, but retards extreme altruism.

The influence of multiple inseminations and multiple foundresses on social evolution.

  • M. Wade
  • Biology
    Journal of theoretical biology
  • 1985

A Frequency Dependent Model of Brood Selection

TLDR
The model is developed describing the operation of selection upon broods of full sibs such that the fundamental equations describing brood selection at a single locus in a randomly-mating population are identical to the equations arising from a frequency-dependent model in population genetics.

The Theory of Kin Selection

TLDR
This paper reviews the apparently diverse theoretical studies of kin selection in a common population genetic framework and discusses the implications of this theory for many of the terms and concepts used in sociobiology.

Kin selection: A classical approach and a general solution.

  • M. Wade
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1978
TLDR
It is shown that, when the groups of socially interacting individuals consist of the members of more than one family, severe restrictions are placed on the evolution of altruistic and social behaviors and the rate of evolution is greatly reduced.