Article
Stability and instability of polymorphic populations and the role of multiple breeding seasons in phase III of Wright's shifting balance theory.
Physical review. E, Statistical, nonlinear, and soft matter physics - 1 Mar 2002
de Aguiar M A M, Sayama H, Rauch E, Bar-Yam Y, Baranger M
Abstract excerpt
It is generally difficult for a large population at a fitness peak to acquire the genotypes of a higher peak, because the intermediates produced by allelic recombination between types at different peaks are of lower fitness. In his shifting-balance theory, Wright proposed that fitter genotypes could, however, become fixed in small isolated demes by means of random genetic fluctuations. These demes would then try...
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