University of Cambridge > Talks.cam > Behaviour, Ecology & Evolution Seminar Series > Mate choice, sexual selection, and the evolutionary dynamics of magic traits

Mate choice, sexual selection, and the evolutionary dynamics of magic traits

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Traditional models of speciation by assortative mating, including the seminar paper of Felsenstein (1981), considered mate choice based on mating groups such as plants with different flowering times. I revisit these models and show that if a “knife-edge” symmetry assumption of previous models is removed, then sexual selection thwarts speciation by eliminating the mating groups. Next, I expand the model taking also ecological selection into account and compare the population genetics of magic traits under group-based and self-referent assortative mating. Finally, I consider long-term evolution by applying the adaptive dynamics framework to sexual populations, and investigate how ecological selection and sexual selection combine in the diversification of magic traits.

This talk is part of the Behaviour, Ecology & Evolution Seminar Series series.

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