Regents’ Professor, Astronomy/Steward Observatory, The University of Arizona
Director, BIO5 Institute and Regents’ Professor, Plant Sciences and Molecular and Cellular Biology, The University of Arizona
Regents Professor, School of Music, The University of Arizona
Director, Arizona Research Laboratories Division of Neurobiology and Regents’ Professor, Neurobiology, Biochemistry and Molecular Biophysics, Entomology, and Molecular and Cellular Biology, The University of Arizona
Regents’ Professor, Dendrochronology and Watershed Management, The University of Arizona
Director, Biosphere 2, B2 Earthscience; Associate Professor, Ecology and Evolutionary Biology, The University of Arizona
Professor, Planetary Sciences/LPL and Physics, The University of Arizona
Regents’ Professor, Mathematics, The University of Arizona
Director, B2 Institute; Regents' Professor, Physics and Optical Sciences, The University of Arizona
Dean, College of Science; Professor, Geosciences, The University of Arizona