Phone: (509)-313-6637 Fax: (509)-313-5804 eMail: Office#: HU 208

Research Interests

I am broadly interested in ecology, natural history, and field biology. I have done much of my work in agricultural ecosystems because I believe that understanding predator-prey, plant-insect, and other ecological interactions can help develop sustainable agricultural practices. I am particularly interested in applying community ecology to improve the ability of predatory arthropods to control insect pests (biological control). I have worked with a diversity of insects that eat aphids, including green lacewings, lady beetles, ground beetles, parasitoid wasps, and predatory bugs. I use a combination of field and laboratory experiments, behavioral observations, and mathematical modeling. Currently, I am analyzing the results of a large-scale field experiment on how predatory insects can be used together with a selective insecticide in a multiple pest system (aphids and Colorado potato beetles in central Washington).

Education

• Ph.D., 2000, Department of Zoology, University of Washington.
• B.S., 1994, Biology, Duke University.

Teaching Responsibilities

Diversity of Life (Biol 101), Introduction to Ecology (Biol 102), Introductory Microbiology (Biol 170), Entomology (Biol 367)

Professional Appointments

• Current: Assistant Professor, Gonzaga University Department of Biology
• 2005-2008: Visiting Assistant Professor, Gonzaga University Department of Biology
• 2003-2005: Postdoctoral Research Associate with William E. Snyder, Washington State University Department of Entomology
• 2001-2003: Postdoctoral Research Associate with Sanford D. Eigenbrode, University of Idaho Department of Plant, Soil, and Entomological Sciences

Peer Reviewed Publications

• Chang, G.C. and W.E. Snyder. 2008. Pymetrozine causes a nontarget pest, the Colorado potato beetle (Coleoptera: Chrysomelidae), to leave potato plants. Journal of Economic Entomology. 101: 74-80.
• Chang, G.C., J. Neufeld, and S.D. Eigenbrode. 2006. Leaf surface wax and background morphology of peas influences insect density. Entomologia Experimentalis et Applicata. 119: 197-205.
• Chang, G.C. and W.E. Snyder. 2004. The relationship between predator density, community composition, and field predation of Colorado potato beetle eggs. Biological Control. 31: 453-461.
• Chang, G.C. and S.D. Eigenbrode. 2004. Delineating the effects of a plant trait on interactions among associated insects. Oecologia. 139: 123-130.
• Chang, G.C., J. Neufeld, P. Duetting, D. Durr and S.D. Eigenbrode. 2004. Waxy bloom in peas influences the performance and behavior of Aphidius ervi, a parasitoid of the pea aphid. Entomologia Experimentalis et Applicata. 110: 257-265.
• Chang, G.C., C.R. Rutledge, R. C. Biggam, and S.D. Eigenbrode. 2004. Arthropod diversity in peas with normal or reduced waxy bloom. Journal of Insect Science. 4:18, available online: www.insectscience.org/4.18
• Koss, A.M., G.C. Chang and W.E. Snyder. 2004. Predation of green peach aphids by generalist predators in the presence of alternative, Colorado potato beetle egg prey. Biological Control. 31: 237-244.
• Chang, G.C. 1998. Chrysoperla plorabunda (Neuroptera: Chrysopidae) larvae feed disproportionately on thrips (Thysanoptera: Thripidae) in the field. Canadian Entomologist 130: 549-550.
• Chang, G.C. 1996. Comparison of single versus multiple species of generalist predators for biological control. Environmental Entomology 25: 207-212.
• Roberson, K.M., D.W. Edwards, G.C. Chang and C.N. Robertson. 1995. Isolation and characterization of a novel human prostatic stromal cell culture: DuK50. In Vitro Cell. Dev. Biol. -- Animal 31: 840-845.

Other Scientific Publications

• Snyder, W.E., G.C. Chang and R.P. Prasad. 2005. Biodiversity and successful conservation biological control: is there a relationship? In: Ecology of Predator-Prey Interactions, in press. P. Barbosa and I. Castellanos, eds. Oxford University Press.
• Chang, G.C. 2005. Biological pest management. In: 2005 McGraw-Hill Encyclopedia of Science and Technology, pp. 30-32. Compiled by the staff of the McGraw-Hill encyclopedia of science and technology. McGraw-Hill, New York.
• Schindler, D.E., G.C. Chang, S. Lubetkin, S.E.B. Abella and W.T. Edmondson. 2003. Rare species in the phytoplankton community of Lake Washington. In: The Importance of Species, pp. 206-220. P. Kareiva and S. Levin, eds. Princeton University Press.
• Chang, G.C. and P. Kareiva. 1999. The case for indigenous generalists in biological control. In: Theoretical Approaches to Biological Control, pp. 103-115. B. Hawkins and H. V. Cornell, eds. Cambridge University Press.
• Chang, G.C. and A.R. Smith. 1999. Book review: ÒPhenotypic Evolution: a reaction norm perspective,Ó by C. D. Schlichting & M. Pigliucci. Animal Behaviour 57: 1169-1170.
• Schultz, C.B. and G.C. Chang. 1998. Challenges in insect conservation: managing fluctuating populations in disturbed habitats. In: Conservation Biology: for the coming decade, 2nd ed., pp. 228-254. P. L. Fiedler and P. M. Kareiva, eds. Chapman & Hall, San Francisco.