Individual Listing

0308 COLLEGE BLDG NO
University of California
Riverside, CA 92521

Holt, Jodie S

Associate Dean, Agriculture & Natural Resources & Coop. Ext.
Professor of Plant Physiology & Plant Physiologist

College of Natural and Agricultural Sciences

CNAS Dean's Office


Botany & Plant Sciences


Biography

Ecology and physiology of weedy and invasive plant species in wild lands and agricultural ecosystems

Degrees

BS Botany 1974

University of Georgia

MS Plant Ecology 1977

University of California, Davis

PhD Botany 1982

University of California, Davis

Awards

2010 San Diego Botanical Garden, Paul Ecke Jr. Award in Excellence
2010 Weed Science Society of America, Outstanding Research Award
2006 American Association for the Advancement of Science, Agriculture,Food & Renewable Resources
2000 Outstanding Paper Published in Weed Science Award, Weed Science Society of America
2000 Elected Fellow, Weed Science Society of America
1992 Outstanding Paper Published in Weed Science Award, Weed Science Society of America
1982 Outstanding Research Paper Winner, California Weed Conference


Research Area

Research conducted in the Holt laboratory focuses on population and physiological ecology of weedy and invasive plant species in wildlands and agricultural ecosystems and the application of that knowledge to management. We are investigating the population ecology of the grassland invader, Cynara cardunculus (artichoke thistle) and the mechanisms by which it invades coastal grassland ecosystems. We are also exploring phenological modeling approaches for developing management strategies for this species. A second major research project focuses on invasion of riparian habitats by Arundo donax (giant reed). Our work focuses on the habitat factors that promote invasion and replacement of native species by A. donax and the impacts of this species on native communities. We are also addressing methods of A. donax removal and restoration of native riparian species that prevent reinvasion. A new project focuses on the invasion of Brassica tournefortii, Sahara mustard, into southwest deserts.

Publications

26. Decruyenaere, J.G., Holt, J.S. 2001. Seasonality of clonal propagation in giant reed. Weed Sci. Vol. 49: p.760-767. (Refereed)

27. Tayyar, R., Nguyen, J.T., Holt, J.S. 2003. Genetic and morphological analysis of two novel nutsedge biotypes from California. Weed Sci. Vol. 51: p.731-739. (Refereed)

28. Khudamrongsawat, J., Tayyar, R., Holt, J.S. 2004. Genetic diversity of giant reed in the Santa Ana River, California. Weed Sci. Vol. 52: p.395-405. (Refereed)

29. Decruyenaere, J.G., Holt, J.S. 2005. Ramet demography of a clonal invader, Arundo donax (Poaceae), in Southern California. Plant and Soil. Vol. 277: p.41-52. (Refereed)

30. White, V.A., Holt, J.S. 2005. Competition of artichoke thistle (Cynara cardunculus) with native and exotic grassland species. Weed Sci. Vol. 53: p.826-833. (Refereed)

31. Marushia, R.G., Holt, J.S. 2006. The effects of habitat on dispersal patterns of an invasive thistle, Cynara cardunculus. Biol. Invas. Vol. 8: p.577-593 . (Refereed)

32. Burger, J.C., Holt, J.S., Ellstrand, N.C. 2007. Rapid phenotypic divergence of feral rye from domesticated cereal rye. Weed Sci. Vol. 55: p.204-211. (Refereed)

33. Quinn, L.D., Rauterkus, M.A., Holt, J.S. 2007. Effects of nitrogen enrichment and competition on growth and spread of giant reed (Arundo donax). Weed Sci. Vol. 55: p.319-326. Refereed)

34. Quinn, L.D., Holt, J.S. 2008. Ecological correlates of invasion by Arundo donax in three southern California riparian habitats. Biol. Invas. Vol. 10: p.591-601. (Refereed)

35. Marushia, R.G., Holt, J.S. 2008. Reproductive strategy of an invasive thistle: Effects of adults on seedling survival. Biol. Invas. Vol. 10: p.913-924. (Refereed, Invited)