Christopher Stieha


Christopher Stieha 

stieha at hotmail dot com

My research interests revolve around understanding how individual-level interactions, such as competition or herbivory, scale up to affect dynamics at the population, metapopulation, and landscape levels. I combine mathematical models and field experiments to develop, test, and refine predictions. In the Poveda Lab in collaboration with the Abbott Lab at Case Western, I am developing mathematical models to understand the effects of various plant defenses on herbivore population dynamics and the feedback between the two systems as an attempt to use bottom-up processes to mitigate pest outbreaks. I also use statistical models to determine abiotic and landscape-level factors affecting pest populations and agricultural production.

Chris is currently a postdoc in Karen Abbott´s lab, Case Western Reserve University

Publications

Stieha, C. and McLetchie, D.N. 2012. Degradation of a Tropical Stream. EcoEd Digital Library. http://esa.org/ecoed/folders/0250/degradationofatropicalstream

Rohr, J.R., Sesterhenn, T., Stieha, C. 2011. Will climate change reduce the effects of a pesticide on amphibians?: Partitioning effects on exposure and susceptibility. Global Change Biology. 17:657-666, doi: 10.1111/j.1365-2486.2010.02301.x

Groen, K.E., Stieha, C., Crowley, P.H., and McLetchie, D.N. 2010. Sex-specific plant responses to light and canopy openness: Implications for spatial segregation of the sexes. Oecologia. 162(3): 561-570.

Groen, K.E., Stieha, C., Crowley, P.H., and McLetchie, D.N. 2010. Sex-specific plant responses to two light levels in the liverwort Marchantia inflexa. Bryologist. 113(1): 81-89.

García-Ramos, G., Stieha, C., McLetchie, D.N., and Crowley, P. 2007. Metapopulation Sex Ratio Dynamics and Coexistence of the Sexes under Asymmetrical Competition. J. Ecology. 95:937-950

Crowley, P.H., Stieha, C.R., and McLetchie, D.N. 2005. Overgrowth Competition, Fragmentation and Sex-Ratio Dynamics: A Spatially Explicit, Sub-Individual Based Model. J. Theor. Biol. 233:25-42.