Quentin is the site administrator for the California State University GIS Specialty Center, helping facilitate the GIS needs for all 24 campuses in the CSU system. In addition to his role in the Specialty Center, Quentin is a lecturer in the Department of Geography & Environment at SFSU, where he teaches natural resource management & introductory environmental science. He is actively involved in research on non-native species present on the Farallon Island National Wildlife Refuge of California. Quentin utilizes data collected on the Farallons using handheld GPS receivers to help the US Fish and Wildlife Service better understand and manage the myriad of biotic resources present on the refuge. Other research interests include: GIS data management, cartography, freshwater systems, and anadromous fish.