Evolution of altruism under group selection in large and small populations in fluctuating environments
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1979-01-01
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A continuous, graded form of group selection which does not involve extinction of demes can effectively oppose selection on the individual level against an altruistic allele under fluctuating environments in infinitely large demes among which uniform mixing occurs every generation. Although group selection cannot alter the conditions necessary for the initial increase of altruistic alleles, group selection can significantly influence the stationary distribution of gene frequency which is attained once stochastic forces have allowed theirintroduction. Drift is a more effective source of variation than fluctuations in selection when the variance in selection is moderate to small. High numbers of demes promote polymorphism under both graded group selection and extinction group selection. © 1979.
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Uyenoyama, MK (1979). Evolution of altruism under group selection in large and small populations in fluctuating environments. Theoretical Population Biology, 15(1). pp. 58–85. 10.1016/0040-5809(79)90027-3 Retrieved from https://hdl.handle.net/10161/25959.
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Marcy K. Uyenoyama
Marcy Uyenoyama studies mechanisms of evolutionary change at the molecular and population levels. Among the questions under study include the prediction and detection of the effects of natural selection on genomic structure. A major area of research addresses the development of maximum-likelihood and Bayesian methods for inferring evolutionary processes from the pattern of molecular variation. Evolutionary processes currently under study include characterization of population structure across genomes.
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