A phenotypic view of evolution Evolution in Structured Populations

The multivariate breeder’s equation

Last week I talked about the univariate breeder’s equation.  A major extension of this was provided by Lande (1979 Evolution 33: 402-416).  In this paper Lande shows how the basic breeders equation can be expanded to include multiple traits.  Putting my tongue firmly in my cheek, the basic technique involves (1) separating heritability into its …

Selection as an Ecological Process

Having discussed relative fitness it is now time to turn to selection.  The first important point is to think about the “breeders” equation: r=h2s here r is the response to selection, h2 is the heritability, and s is the selection differential.  The important point is that evolution by natural selection (r) has two components, h2 …

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