FEMALE PREFERENCES FOR NATURALLY-OCCURRING NOVEL MALE TRAITS

In: Behaviour
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Abstract

We report two independent cases of female preferences for novel male traits in two species of poeciliid fish, Poecilia latipinna and Poecilia mexicana. In both cases the preference predates the occurrence of the trait, lending strong support to the pre-existing bias hypotheses. This support is independent of the assumptions associated with phylogenetic inference. Unlike the two sexual species, the unisexual hybrid P. formosa had no detectable preference for the novel male traits.

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