Andrew E LaursenAndrew Laursen is an Associate Professor in the Department of Chemistry and Biology at Ryerson University, and Director of the Environmental Applied Science and Management MASc and PhD programs. He was a contributor in the creation of the Sustainabilty Management certificate program in the G. Raymond Chang School for Continuing Education. He is a co-author of Ecology, Concepts and Applications, 4th Canadian Edition, McGraw Hill Education (authors: Manuel C. Molles, James F. Cahill, Jr., and Andrew E. Laursen), and of the forthcoming 5th Canadian Edition. Laursen is an ecosystem ecologist. His research program considers how stresses, natural and anthropogenic, affect ecosystem function, and how systems might be better managed to preserve or enhance ecosystem services. The research program draws on elements of ecology and evolution, microbiology, biogeochemistry, and statistical modeling. Current research focuses on enhancing water quality and sustainable use of water in urban systems. Read More Read Less