Denise Knapp, Ph.D.

Denise oversees the Conservation program at the Garden and specializes in ecological research focusing on plant-insect interactions.

Denise oversees the Conservation program at the Garden, and conducts ecological research focusing on plant-insect interactions, invasive species impacts/control, rare plant recovery, and habitat restoration. Denise has a Ph.D. in Ecology from the University of California, Santa Barbara and an M.A. degree in Geography from the University of California, Los Angeles. She has worked as a plant ecologist in California (particularly the Channel Islands) for over two decades, including the consulting, University, and nonprofit worlds. Her past work has included a myriad of vegetation ecology, fire ecology, invasive species, habitat restoration, and rare plant conservation projects.  

Research interests: Ecosystem restoration, invasive species impacts, plant-insect interactions, Diptera, conservation ecology 

Publications

Knapp, D.A., K. Etter, & S. Cusser. 2022. Floral visitors of Deinandra increscens ssp. villosa: 2021 findings report. Unpublished report prepared for Dudek by the Santa Barbara Botanic Garden, Santa Barbara, CA. 20 pages.

Knapp, D.A., K. Etter, C. Richart, & J. Lesage. 2021.Flower visitors of Deinandra increscens ssp. villosa: 2020 findings report. Unpublished report prepared for Dudek by the Santa Barbara Botanic Garden, Santa Barbara, CA. 35 pages.

Knapp, D.A. 2020. Naval Base Ventura County, San Nicolas Island Terrestrial Flora Program Draft Final Report: Mesembryanthemum crystallinum experiment 2019 field monitoring. Cooperative Agreement N62473-17-2-0005. Santa Barbara Botanic Garden, Santa Barbara, California. 17 pages.

Knapp, D.A. 2020. Naval Base Ventura County, San Nicolas Island Terrestrial Flora Program Draft Final Report: Grey literature databasing. Cooperative Agreement N62473-17-2-0005. Santa Barbara Botanic Garden, Santa Barbara, California. 15 pages.

Knapp, D.A. 2020. 2020 Annual Report to U.S. Fish and Wildlife Service: Diplacus vandenbergensis. Cooperative Agreement Award F19AC00721 (“Recovery actions for two endangered plant species”). Santa Barbara Botanic Garden, Santa Barbara, California. 12 pages.

Knapp, D.A., J.J. Knapp, K.A. Stahlheber, & T. Dudley. 2019. A little goes a long way when controlling invasive plants for biodiversity conservation. Pp. 643-650 In: C.R. Veitch, M.N. Clout, A.R. Martin, J.C. Russell, and C.J. West (eds.). Island invasives: Scaling up to meet the challenge. Occasional Paper SSC no. 62, Gland, Switzerland: IUCN.

Knapp, D. & S. Calloway. 2019. Illuminating botanical blackholes to inform habitat restoration in the Zaca and Jesusita fire scars. Unpublished final report prepared for the National Fish and Wildlife Foundation by the Santa Barbara Botanic Garden. Santa Barbara, California.

Hoyer, W.III, J. Knapp, D. Knapp, D. Mazurkiewicz, K. Owen, L. Luna-Mendoza, & K. McEachern. 2018. Islands of the Californias Botanical Collaborative. Western North American Naturalist 78(4): 902-909.

Randall, J.R., K.McEachern, J. Knapp, P. Power, S. Junak, K. Gill, D. Knapp, & M. Guilliams. 2018. Informing our successors: What botanical information for Santa Cruz Island will researchers and conservation managers in the century ahead need the most? Western North American Naturalist 78(4): 888-901.

Knapp, D.A., F. Light, & C. Garoutte. 2018. Naval Base Ventura County, San Nicolas Island erosion control program final report: Mesembryanthemum crystallinum impacts and habitat restoration. Cooperative Agreement N62473-14-2-0005. Santa Barbara Botanic Garden, Santa Barbara, California.

Guilliams, C.M., B.E. Carter, M.L. Ceceña Sánchez, J. Delgadillo, B. Holzman, S. Junak, D. Knapp, L.L. Mendoza, & S. Vanderplank. 2017. The remarkable flora of California Islands. Fremontia 45(3): 5-11. https://grownatives.cnps.org/2017/12/07/islands-of-the-californias/.

Knapp, D.A., D.Borjes-Flores, P. Dixon, W. Hoyer, J. Knapp, L. Luna, K. McEachern, J. Montoya, B. Munson, P. Power, & J. Randall. 2017. The future of California Islands conservation in a changing world. Fremontia 45(3).

Knapp, D. & H. Schneider. 2017. Conservation of salt marsh bird’s beak (Chloropyron maritimum subsp. maritimum). Unpublished final report prepared for the U.S. Fish and Wildlife Service, Ventura, by the Santa Barbara Botanic Garden. Santa Barbara, California. McEachern, K., P. Dixon, E. Havstad, W. Hoyer, D. Knapp, J. Knapp, L. Luna-Mendoza, B.

Knapp, D.A. 2014. Ecosystem restoration on Santa Catalina Island: A review of potential approaches and the promise of bottom-up invader management. Monographs of the Western North American Naturalist 7: 421-434.

Junak, S., D. Knapp, J.R. Haller, R. Philbrick, A. Schoenherr, & T. Keeler-Wolf.  2007.  The California Channel Islands.  Pages 229-252 in M. Barbour, T. Keeler-Wolf, and A. Schoenherr (Editors). Terrestrial Vegetation of California (Third Edition). University of California Press, Berkeley, CA.


Director of Conservation & Research