Dr. Donald Mc Kenzie is a research ecologist at the University of Washington who focuses on wildfire, landscape ecology, and climate change. His studies explore spatial pattern and structure in low-severity fire regimes, the effects of wildfire on regional air quality, effects of climate change on disturbance regimes and mountain forest ecosystems in the American West, landscape mapping of wildland fuels at multiple scales, and carbon emissions from wildfire in North America. Previously he has worked on climatic variability and tree species” responses, dendrochronological methods, understory plant responses to overstory changes, and empirical models of forest growth.