Adaptive divergence and speciation
Some of my research focuses on understanding the micro-evolutionary processes that determine adaptive diversification in natural populations. Specifically, I study how ecological differences can promote and maintain morphological and genetic divergence within populations and among species of Darwin's finches.
So far, my research has mostly focused on how ecological changes influence evolution in natural populations. However, I am also interested in the opposite effect: how do evolutionary changes influence ecological dynamics? This interaction between ecology and evolution is known as eco-evolutionary dynamics, and is the focus of my ongoing research looking at the interaction between finches and plant communities.
Evolution in Neotropical weakly-electric fishes
Electric fishes produce a bioelectric field through the discharge of an electric organ (EOD). These fields are used to localize objects and prey, and are involved in mating and social interactions. This project attempts to understand the factors shaping these electric fields, and their role in determining evolutionary trajectories and diversification in these fresh water species
Other organisms we study
Introduced Guppy (Poecilia reticulata) populations from Panama
Astyanax ruberrimus Eigenmann, 1913
A typical river from the Caribbean slope of Panama.
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