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Equation 4 · From Origins to Frontier: A History of Evolutionary Biology and Ecology

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ss

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the constant. Read the equation part by part below; each part has a contextual explanation and a link to its mathematical background.

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ss

Symbol s

the constant.

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A basic case illustrates the kind of prediction this apparatus makes possible. For a single locus with two alleles under simple directional selection with selection coefficient s favoring an allele at frequency p , one classical discrete-generation recursion is

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