I work on the ecology of fungi, studying the processes that structure their communities at a range of spatial scales, and the critical roles that these organisms play in the cycling of carbon, nutrients and other elements through the environment. Much of my work focuses on a key group of mutualistic fungi that inhabit the roots of most plants. These mycorrhizal fungi are directly involved in the cycling of nitrogen and carbon between the plant and soil, playing vital roles in plant growth and belowground carbon storage. I use a variety of experimental techniques, including isotopic tracers, to measure the exchange of these resources between the plant-fungal partnerships and test how this exchange is affected by global changes such as increases in nitrogen availability. Through this research, I hope to understand how environmental change may alter the dynamic of this mutualism across ecosystem scales, and the knock-on effect on its functioning, particularly in regard to carbon cycling and nitrogen acquisition.