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Associate Professor of Zoology
Phone: (405)325-7435
Fax: (405)325-7440RM/Lab:SH104/UOBS
Dr. Hambright's web page
Current Research Interests and Subject Areas Available for Graduate Research
Ecological interactions between freshwater consumer and prey species are the primary focus of my research. My studies have covered a broad range of organisms including piscivorous and planktivorous fishes, metazoan and protozoan plankton, phytoplankton (algae) and bacteria. I am particularly interested in understanding how consumers affect community and ecosystem level dynamics through direct and indirect effects on both prey and non-prey species via mechanisms such as selective consumption, alteration of competitive forces, and changes in nutrient cycling dynamics. Laboratory and field experimentation play key roles in my research, though I typically employ additional multiple but separate approaches to any particular question. Most recently, these include field demographic surveys, allozyme electrophoresis, comparative morphology using computerized image analysis, paleolimnology, life history analyses, and motion analysis via high-speed digital video. Students working in my lab are free to explore any topic in aquatic ecology and evolutionary biology. Current projects include zooplankton grazing and nutrient remineralization in Lake Texoma, paleolimnology of Lake Kinneret, Israel, interactions between food stoichiometry and Daphnia behavior and metabolism, and cladoceran zooplankton feeding mechanics (i.e., the mechanism of food particle capture and selection).
To learn more about this research, visit Dr. Hambright's web page.
M.Sc., Texas Christian University
B.Sc., University of North Carolina, Charlotte
Selected publications:
Hambright, K.D. & T. Zohary. 2000. Phytoplankton species diversity control through competitive exclusion and physical disturbances. Limnology & Oceanography 45:110-122.
Hambright, K.D., T. Zohary, J. Easton, B. Azoulay, and T. Fishbein. 2001. Effects of zooplankton grazing and nutrients on the bloom-forming, N2-fixing cyanobacterium Aphanizomenon in Lake Kinneret. Journal of Plankton Research 23: 165-174.
Hambright, K.D., S.C. Blumenshine and J. Shapiro. 2002. Can filter-feeding fishes improve water quality in lakes? Freshwater Biology 47:1173-1182.
Drenner, R., and K.D. Hambright. 2002. Piscivores, trophic cascades, and lake management. TheScientificWorldJOURNAL 2: 284-307.
Blumenshine, S., and K. D. Hambright. 2003. Top-down control in Lake Kinneret: a role for invertebrate predation. Hydrobiologia 491:347-356.
Hambright, K.D. and T. Zohary. (in press). Lake Kinneret and water supply in Israel: ecological limits to operational supply. In: Hambright, K.D., F.J. Ragep & J. Ginat (eds.) Water in the Jordan Valley: Technical Solutions and Regional Cooperation, proceedings of an international conference. International Programs Center, Center for Peace Studies, University of Oklahoma Press.
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