I specialize in geographic information systems, remote sensing, land use and land cover, and human-environment interactions. Much of my research has focused in the neotropics, including Costa Rica, Brazil, and Guyana, although I have also studied historical land changes in the Adirondacks of New York State. I have published on applications of GIS and remote sensing to land-use and land-cover changes, selective logging operations, indigenous hunting patterns, and uses of traditional knowledge in vegetation mapping using remote sensing imagery and identification of multiple-use tree species in Guyana. I am currently examining the spatial history of land use around Onondaga Lake, New York through multiple perspectives, and attempting to find new ways to map and visualize those changes. I teach courses in introductory and advanced GIS/GIScience, remote sensing, global environmental change, tropical environments, and spatial storytelling, and advise graduate students within my realm of expertise. I am interested in strategies to improve curriculum and student engagement.