Evolution occurs in heterogeneous environments, over large geographic ranges, and in the presence of variable species assemblages. My research focuses on how genetic variation is organized both at the species level and in populations of each species, what evolutionary processes regulate genetic variation, and how ecology can affect these evolutionary processes.

Hybridization and reproductive isolation

  1. Hybridization between Yellowstone cutthroat trout and rainbow trout
  2. Hybridization in Catostomus fishes

Genetic structure of natural populations

  1. Population genetics of burbot (Lota lota) in native and introduced range
  2. Rangewide genetic structure in Catostomus

Interactions between evolutionary and ecological processes

  1. Ecology of Catostomus hybridization
  2. Contemporary trait change in alewives