I have broad interests in the biology of mammals, including their natural history, conservation, morphology, and systematics.   My current research largely concerns the natural history and conservation of Pennsylvania mammals, especially small mammals and bats.  My students and I have been working with the Pennsylvania Game Commission and the National Park Service to help assess the impact of wind turbines and White-nose Syndrome on Pennsylvania’s bat populations. However, I retain a strong interest in the morphology and systematics of mammals, particularly moles and shrews and their relatives.