Assistant Professor, Department of Epidemiology and Biostatistics, Assistant Professor, School of Geography and Development, Assistant Professor, Center for Insect Science
Professor, Soil, Water, and Environmental Science, Joint Professor, Hydrology and Water Resources
Adjunct Scientist, Department of Entomology, Research Associate, Department of Ecology and Evolutionary Biology, Research Associate & Art Institute Instructor, Arizona-Sonora Desert Museum, Scientist-at-Large, The Pollinator Partnership, San Francisco, CA
Professor, School of Natural Resources and the Environment, Director for Climate Adaptation and International Development, Institute of the Environment, Deputy Director, Institute of the Environment, Research Scientist, Arid Lands Resource Sciences Program, Graduate Interdisciplinary Program in Global Change Faculty
Professor, College of Public Health, Division Director, Department of Community, Environment & Policy
Assistant Professor, Department of Community, Environment & Policy, Assistant Professor, Environmental Health Sciences, Assistant Professor, Applied Mathematics Graduate Interdisciplinary Programs, Assistant Professor, Statistics Graduate Interdisciplinary Programs
Assistant Professor of soil/subsurface microbiology, Soil Water and Environmental Science
Assistant Professor, Department of Hydrology & Atmospheric Sciences, Chair, Geophysics Commission of the U.S. National Section of the Pan American Institute for Geography and History