David Dussourd, Ph.D
Ph.D., Neurobiology and Behavior, Cornell University, 1986
Started at UCA in 1991
Principles of Biology II
The Dussourd lab studies insect ecology, behavior, and the intriguing interactions between insects and plants. The major focus of our research is on insect counteradaptations to plant defenses. We are particularly interested in plant defenses stored within elongate canal systems such as latex or resin canals. Insects feeding on these plants commonly sever leaf veins or transect leaves with trenches thereby depressurizing the canals and preventing the influx of latex or resin into their prospective feeding site. We use insect behaviors as a probe for understanding plant defenses and for isolating plant chemicals potentially useful in pest control. In previous studies, we have worked with butterflies and moths (caterpillars and adults), beetles, katydids, aphids, slugs, and spiders, and a diverse assortment of plants that include wildflowers (milkweeds, cardinal flower), crops (lettuce, cucumber, parsley, fig, papaya, cassava), and trees (oaks, pecan, birch).
Our broader interests include the fields of plant-animal interactions, entomology, behavioral ecology, and chemical ecology. Students interested in undergraduate or graduate research in these areas are encouraged to contact David Dussourd at email@example.com or 501-450-5921.
Dussourd DE, Peiffer M, Felton GW. 2016. Chew and spit: Tree-feeding notodontid caterpillars anoint girdles with saliva. Arthropod-Plant Interactions 10(2): 143-150. doi 10.1007/s11829-016-9416-1
Dussourd DE. 2015. Theroa zethus caterpillars use acid secretion of anti-predator gland to deactivate plant defense. PLoS ONE 10(10): e0141924. doi:10.1371/journal.pone.0141924
Hurley KW, Dussourd DE. 2015. Toxic geranium trichomes trigger vein cutting by soybean loopers, Chrysodeixis includens (Lepidoptera: Noctuidae). Arthropod-plant interactions 9(1): 33-43. doi 10.1007/s11829-014-9348-6