One of the central problems of biodiversity science is to understand how microevolutionary processes (genetic drift, gene flow, and selection) relate to macroevolutionary phenomena (the formation of species). Microevolutionary processes are complex because they act across space and through time, and are difficult to differentiate. Increasingly, spatially explicit approaches in landscape genetics and phylogeography are emerging as powerful tools to understand how populations evolve in space and across time. Our lab works to develop and apply tools like approximate Bayesian computation, spatial factor analysis, and linear mixed models to test specific hypotheses about the role of microevolutionary processes in population diversification.
Current Projects: Local adaptation of montane butterflies; Diversification of Asian-North American alpine insects, Biogeography of insects in the Altai Mountains; Connectivity of cold-adapted alpine insects in the North Cascades