Ecosystems

Associate Research Scientist, Department of Environmental Science
Organic mass spectrometrist, Arizona Laboratory for Emerging Contaminants
Professor, School of Natural Resources and the Environment
Associate Professor, Department of Teaching, Learning and Sociocultural Studies
Assistant Professor, School of Geography and Development
Associate Research Scientist, Biosphere 2
Biosphere 2 LEO Project Committee
Assistant Professor, School of Natural Resources and the Environment
Assistant Professor, Department of Environmental Science
Professor, Department of Geosciences
Professor, Department of Ecology and Evolutionary Biology
Assistant Director, National Phenology Network
Associate Professor, School of Natural Resources and the Environment
Research Professor, School of Natural Resources and the Environment