Karen D. Holl is a professor of environmental studies at the University of California, Santa Cruz, where she has taught courses and advised students on research and internships related to ecological restoration for more than 20 years. Her research focuses on understanding how local and landscape-scale processes affect ecosystem recovery from human disturbance and using this information to restore damaged ecosystems. She conducts research primarily in rain forests in Latin America and chaparral, grassland, and riparian systems in California. She advises numerous land management and conservation organizations in California and internationally on ecological restoration. She was selected as an Aldo Leopold Leadership Fellow and as a Fellow of the California Academy of Sciences, and in 2017, she was a cowinner of the Theodore Sperry Award of the Society for Ecological Restoration. She has also served as chair of the Environmental Studies Department and as the faculty director of the Kenneth S. Norris Center for Natural History at the University of California, Santa Cruz.