1. School of Environment & Sustainability, University of Saskatchewan, Collaborative Science Research Building, 112 Science Place, Saskatoon, SaskatchewanS7N 5E2, Canada
2. Department of Physical & Environmental Sciences, University of Toronto, 1265 Military Trail, Toronto, OntarioM1C 1A4, Canada
3. Ecosystems and Global Change Group, Department of Plant Sciences, University of Cambridge, CambridgeCB2 1TN, U.K.
4. Department of Health & Society, University of Toronto, 1265 Military Trail, Toronto, OntarioM1C 1A4, Canada
5. Lumigen Instrument Center, Wayne State University, 5101 Cass Avenue, Detroit, Michigan48202, United States
6. Environment and Climate Change Canada, Canada Centre for Inland Waters, 867 Lakeshore Road, Burlington, OntarioL7S1A1, Canada