My research is involved with understanding phylogenetic and biogeographic components of biological diversity, focusing on freshwater fishes, although I am interested in other aquatic organisms. In order to address various questions, my lab uses an array of tools, including traditional (e.g., morphological, ecological, and life history) and molecular characters (e.g., DNA sequences and fragments and genomic information), historical and ecological biogeography, paleohydrology, and population genetics. Integrating these disciplines falls within the context of phylogenetics, ylogeography, and population/conservation genetics.