What question did this study set out to answer?

To model how ecological interactions within sub-deme trait-groups enable the evolution of altruistic traits favoring group fitness over individual fitness.

January 1, 1975Proceedings of the National Academy of SciencesOpen Access

A theory of group selection.

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Authors

DWDavid Sloan WilsonUniversity of California, San Francisco

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Implication

Theoretical model demonstrates the selection of altruistic traits across structured populations, indicating group and individual selection represent points along an evolutionary continuum.

Key Points

To model how ecological interactions within sub-deme trait-groups enable the evolution of altruistic traits favoring group fitness over individual fitness.
Formulated a population genetics model evaluating organisms with a dispersal phase undergoing local mating, feeding, and competition within defined trait-groups.
Assessed the evolutionary dynamics of altruism as a function of genotypic variance between discrete trait-groups.
Demonstrated that population subdivision into trait-groups facilitates the positive selection of altruistic traits that enhance group fitness.
Showed that the intensity of group selection correlates directly with inter-group genotypic variation, positioning individual and group selection on a continuous biological spectrum.

Cite This Study

David Sloan Wilson (1975) studied this question.

synapsesocial.com/papers/6a130b6a5bb7edc7189ea7cc https://doi.org/10.1073/pnas.72.1.143

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Implication

Theoretical model demonstrates the selection of altruistic traits across structured populations, indicating group and individual selection represent points along an evolutionary continuum.

A theory of group selection.

Discussion

Member takes

Implication

Key Points

Cite This Study

A theory of group selection.

Discussion

Member takes

Implication

Key Points

Cite This Study

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