Speciation via species interactions: uncovering the indirect effects of reinforcement in chorus frogs

18 Oct 2017 12:00 PM
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Manawatu campus - Turitea
Ag Hort 1

Reproductive interactions constitute a potentially powerful force driving the evolution of mating behaviors, particularly when species interact with different combinations of other species across geography. Theory predicts that if the specific members of the local community vary across the range of a species, it may experience strong divergent selection on mating behaviors across populations. This diversifying selection may cause the rapid divergence of populations within a species as males evolve divergent signals across populations and females evolve preferences for local signals.

In this seminar, I will address how geographic variation in the local community is promoting speciation within a chorus frog species through strong selection on reproductive traits. This work integrates behavioral experiments, genetic data, and ecological studies throughout the distribution of the study species to understand a cryptic but potentially widespread mechanism of speciation. The seminar will also touch upon novel applications and advances in anchored hybrid enrichment methods for phylogenetics and the genomics of speciation


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