Student Opportunities

I welcome motivated graduate students interested in physical geography, biogeochemistry and environmental science. My research uses emerging analytical techniques, ecosystem-scale field studies, and controlled experiments to understand how environmental stressors, such as contaminants and climate change, impact aquatic ecosystems, particularly in the Canadian Arctic and boreal ecoregions. Current and potential projects include: i) impacts of climate change on mercury cycling and methylmercury production in Arctic ecosystems; ii) quantifying ecosystem metabolism (primary production and respiration) in ice-covered Arctic lakes; iii) reconstructing long-term trends in atmospheric mercury concentrations using tree-rings; and iv) climate change impacts on lake and watershed biogeochemistry (carbon and nutrient cycling) in northern regions.