MATHIEU DUFRESNE

Research project: Top-Down vs Bottom-up controls on balsam fir regeneration on Anticosti Island. We are studying the effects of deer densities on the biochemical properties of organic forest floors, using a controlled browsing experimental design that was established during the initial phase of the NSERC-PFA Industrial Research Chair. We are also studying mineral soil properties that could facilitate natural regeneration of balsam fir in the presence of high deer densities. Finally, we are studying genotypic and phenotypic controls on fir needle chemistry that could explain variations in browsing intensity across different sectors on the Island.

Master's thesis (PDF 385 Ko)

Academic training and work experience: Mathieu Dufresne holds a B.Sc. degree in Biology from Université de Sherbrooke (2003-2006). He worked at St-Jean-sur-Richelieu Horticulture Research and Development Centre (Minor use pesticides program). He also worked for two semesters in the Soil Ecology Laboratory, Université de Sherbrooke, where he performed field work in Abitibi, on Anticosti Island and in southern Quebec, as well as laboratory analyses of plant secondary metabolites, soil N mineralization and microbial biomass. Mathieu has completed his M.Sc. degree in March 2010 and now works as a biologist for Aménatech inc. consulting engineers.

Research interests: Multitrophic interactions, forest ecology.