Host parasite systems provide an opportunity to study the interface between
microevolutionary processes and macroevolutionary patterns. The goals of my
current research center around recovering the coevolutionary history of birds
and their ectoparasitic lice. The degree of cospeciation varies across different
groups of lice. By understanding how ecological differences between groups
might cause differences in coevolutionary history, we can start to predict
macroevolutionary patterns from microevolutionary processes.