On Sun, 25 May 2003 23:02:57 +0000 (UTC), tomhendricks474{at}cs.com
(TomHendricks474) wrote:


>I agree that all your examples will make modest improvements, but I am talking
>about the major brain spurts of this specific time. You seldom have drastic
>changes in stabilizing selection.
>
Of course.  That is exactly how you define stabilizing selection!

Stabilizing selection is defined as selection that favors the mean or
most common phenotype (assuming a relatively normal distribution).  As
a result, in stabilizing selection, there is no change in the average
phenotype (or allele frequency) but there may be a reduction in
variance for that character (or allele).
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