Acknowledgements

We would like to thank Bridget Redquest, Jill Lalor, and Austin Thompson at Trent University for the DNA extraction and analysis; Sonesinh Keobouasone for help with data management; Rebecca Taylor for help with statistical analyses; and staff from the Government of Saskatchewan, Parks Canada, the University of Saskatchewan, and CanNorth for collecting field samples. Funding information: NSERC Collaborative Research & Development (CRD) grant, Manitoba Hydro, Saskatchewan Power, and Weyerhaeuser Inc. Additional funding support received from Environment and Climate Change Canada. Thank you to Mathieu Leblond and Rafael De Camargo for their helpful comments on the manuscript.