A SPATIALLY EXPLICIT STOCHASTIC MODEL DEMONSTRATES THE FEASIBILITY OF WRIGHT'S SHIFTING BALANCE THEORY
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چکیده
منابع مشابه
A Spatially Explicit Stochastic Model Demonstrates the Feasibility of Wright's Shifting Balance Theory.
Recently there has been a resurgence of theoretical papers exploring Wright's Shifting Balance Theory (SBT) of evolution. The SBT explains how traits which must pass through an adaptive valley may evolve in substructured populations. It has been suggested that Phase III of the SBT (the spread of new advantageous traits through the populations) proceeds only under a very restricted set of condit...
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Introduction Conclusions References
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Sewall Wright's shifting balance theory of evolution posits a mechanism by which a structured population may escape local fitness optima and find a global optimum. We examine a one-locus, two-allele model of underdominance in populations with differing spatial arrangements of demes, both analytically and with Monte Carlo simulations. We find that inclusion of variance in interpatch connectiviti...
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ژورنال
عنوان ژورنال: Evolution
سال: 1998
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1998.tb02260.x