Group selection

In evolutionary biology, group selection refers to the idea that alleles can become fixed or spread in a population because of the benefits they bestow on groups, regardless of the fitness of individuals within that group.

Related Topics:
Evolutionary biology - Allele - Fitness

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Group selection was once a popular explanation for adaptations, especially by V.C. Wynne-Edwards. However, critiques, particularly by George C. Williams in his 1966 book Adaptation and Natural Selection, John Maynard Smith (1964) and C.M. Perrins (1964) cast serious doubt on group selection as a major mechanism of evolution. Some term this shift to a gene-centered view of evolution the "Williams revolution".

Related Topics:
V.C. Wynne-Edwards - George C. Williams - 1966 - Adaptation and Natural Selection - John Maynard Smith - 1964 - C.M. Perrins - Evolution - Gene-centered view of evolution - Williams revolution

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