My general research interests center on ecology in the broadest sense, with a large emphasis on conservation issues and the increasingly profound impacts of humans on the environment, especially in urban ecosystems, in the U.S. and abroad. The ethics of such research is also an interest. Much of my work is carried out on reptiles and amphibians, and invasive species are a common focus. My research is primarily conducted in the field and typically focuses on the whole organism and its interactions with its biotic (including human) and a-biotic environment. Whenever possible, I use multiple methods, and this integrative approach has led to continuously evolving research spanning varied sub-disciplines.