Article
The effect of trait type and strength of selection on heritability and evolvability in an island bird population.
Evolution; international journal of organic evolution - 1 Nov 2014
Wheelwright Nathaniel T, Keller Lukas F, Postma Erik
Abstract excerpt
The heritability (h(2) ) of fitness traits is often low. Although this has been attributed to directional selection having eroded genetic variation in direct proportion to the strength of selection, heritability does not necessarily reflect a trait's additive genetic variance and evolutionary potential ("evolvability"). Recent studies suggest that the low h(2) of fitness traits in wild populations is caused not...
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