Phenotypic differentiation and pre-mating isolation between allopatric populations of Girardinichthys multiradiatus.

Abstract excerpt

Sexual selection may lead to reproductive isolation between populations through divergence in female mate choice, and population differentiation driven by female mate choice is expected to produce pre- but not post-mating isolation. We tested these hypotheses by looking at whether allopatric populations of the Amarillo (Girardinichthys multiradiatus), a sexually dimorphic viviparous fish with effective female...

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