Charles Mitchell

Postdoctoral Fellow

(with Alison G. "Sunny" Power)

Dept. Ecology and Evolutionary Biology

Cornell University

Charles in the lab
Lespedeza rust

CV with downloadable reprints

Research interests: ecology of infectious disease, global change, plant ecology, the community - ecosystem interface.

The near-global human domination of ecological systems makes understanding the effects of human actions on ecosystems a matter of practical importance. It also raises many questions, creating an exciting intellectual frontier. The question that motivates my work is: By what mechanisms does global environmental change alter ecological systems? Answering whether and how infectious diseases of plants act as a mechanism by which environmental change alters terrestrial ecosystems is the overarching goal of my research. While I am interested in all components of environmental change, plant disease ecology is the unifying theme of my research. I am most excited by the potential for disease to integrate across hierarchical levels including ecosystem processes, community structure, population dynamics, and organismal physiology. My interests are grouped around four major issues:

Pathogen regulation of ecosystem processes.

Effects of environmental change on disease.

Pathogen mediation of global change.

Release of invasive plants from pathogens.

Teaching interests and philosophy

My Ph.D. research involved over 30 species of foliar fungal pathogens. These pathogens are typically specific to a single host species and are spread by wind and rain splash. Shown is the rust fungus Uromyces lespedezae-procumbentis infecting a leaf of the prairie legume Lespedeza capitata. This work was done at Cedar Creek Natural History Area of the University of Minnesota.
Plot with four grass hosts
My postdoctoral research focuses on an aphid-vectored generalist pathogen of wild grasses, barley yellow dwarf virus (BYDV).