1. A. Fontaine and J.-F. Giroux (giroux.jean-francois@uqam.ca), Dépt des Sciences Biologiques, Univ. du
2. E.T. Reed, Canadian Wildlife Service, Environment and Climate Change Canada, Yellowknife, NWT, Canad
3. J. Rodrigue, Canadian Wildlife Service, Environment and Climate Change Canada, Quebec, QC, Canada.