James Harwood Next Seminar Speaker: April 11
April 3, 2012
DAVIS--James Harwood, doctoral candidate in the James R. Carey lab, will speak on "The Effects of Life History Tradeoffs on the Cost of Reproduction in Tephritid Fruit Flies" at the UC Davis Department of Entomology seminar on Wednesday, April 11 in 122 Briggs Hall. His seminar, his exit seminar, is from 12:10 to 1 p.m.
James Harwood will speak on "The Effects of Life History Tradeoffs on the Cost of Reproduction in Tephritid Fruit Flies" from 12:10 to 1 p.m., Wednesday, April 11 in 122 Briggs Hall. (Photo by Kathy Keatley Garvey)
Professor Carey will introduce him.
"My dissertation work focused on the biology and demography of tephritid fruit flies in Tapachula, Mexico and at the USDA-ARS fruit fly laboratory in Hawaii. I asked three general questions about how reproduction and survival are influenced by external conditions. These questions were: 1) what is the effect of different physiological mechanisms of delayed reproduction on female survival and reproductive ability? 2) do mate availability, dietary conditions, and age affect the cost of reproduction in males? and 3) in what manner does an increased risk of mortality, due to injury, influence reproductive decisions? Through answering these three questions, I tested the assumptions of resource allocation theory and the terminal investment hypothesis. Overall, the results of this work provide a greater understanding to the factors influencing the cost of reproduction in insects and a deeper insight to the environmental pressures required for adaptive life history tradeoffs to evolve."
James Harwood graduated from California State University, Bakersfield with a bachelor of science degree in biology and is completing his doctorate at the UC Davis Department of Entomology. While at UC Davis, he conducted research with the MoscaMed mass rearing program in Tapachula, Mexico and the USDA-ARS Pacific Basin Agricultural Research Center in Hilo, Hawaii. His research has led to collaborations with scientists from Stanford, El Colegio De Frontera Sur, the USDA-ARS, and the University of Hawaii. His findings have been presented at regional and national meetings of the Entomological Society of America and he anticipates publishing his results in the Journal of Insect Physiology, Physiological Entomology, and the Journal of Insect Behavior. Upon completing his doctorate, Harwood will be commissioned with the U.S. Navy and serve as an entomologist in the Naval Medical Service Corps.
Coordinators of the spring seminars are Louie Yang and Joanna Chiu, assistant professors. All lectures will take place on Wednesdays from 12:10 to 1 p.m. in 122 Briggs Hall. The series, launched April 4, will continue through May 23.
In a webcast project coordinated by professor James R. Carey, some of the seminars will be videotaped and can be accessed at a later date on UCTV.
The list of speakers for the April 4-May 23 seminars:
April 4: Ian Pearse, who just finished his doctorate, working with major professor Rick Karban lab, UC Davis, will speak on "The Use of Non-Native Plants by Native Herbivores."
Host: Rick Karban, professor, UC Davis Department of Entomology
April 11: James Harwood, graduate student, James R. Carey lab, UC Davis,"Biodemography of Reproductive Senescence in Fruit Flies (Tephritidae): The Influence of External Conditions on Age Specific Reproduction and Lifespan"
Host: James R. Carey, professor, UC Davis Department of Entomology
April 18: Bryony C. Bonning, professor, Iowa State University, "Novel Toxin Delivery Strategies for Management of Pestiferous Aphids"
Host: Bruce Hammock, distinguished professor, UC Davis Department of Entomology
April 25: Vince Jones, professor, Washington State University. "How a 'Perfect Storm' of Technology, Legislation, and Applied Ecology is Finally Leading to IPM in Western Orchards"
Host: Michael Parrella, professor and chair, UC Davis Department of Entomology
May 2: Susan Cobey, bee breeder-geneticist at UC Davis and Washington State University, "Importation of Honey Bee Germplasm to Increase Genetic Diversity in Domestic Breeding Stocks"
Host: Eric Mussen, Extension apiculturist, UC Davis Department of Entomology
May 9: Sonia Altizer, professor, University of Georgia, "Infection and Immunity in Migratory Species: Monarchs as a Global Case Study"
Host: Louie Yang, assistant professor, UC Davis Department of Entomology
May 16: James C. Nieh, professor of biology, University of California, San Diego, "Role of Negative Signaling in a Superorganism: the Honey Bee Stop Signal"
Host: Brian Johnson, assistant professor, UC Davis Department of Entomology
May 23: Tara Thiemann, postdoctoral Scholar at UC Davis, William Reisen lab, "Survey of Culex Bloodfeeding Patterns in California"
Host: William Reisen, research entomologist, Center for Vectorborne Diseases, and adjunct professor, Pathology, Microbiology and Immunology (PMI), School of Veterinary Medicine
--Kathy Keatley Garvey
UC Davis Department of Entomology