1. Département de Sciences Biologiques; CP 6128 Succursale Centre-Ville; Université de Montréal, Pavillon Marie-Victorin; Montréal QC Canada H3C 3J7
2. Canadian Forest Service; Northern Forestry Centre; 5320 122 Street Northwest Edmonton AB Canada T6H 3S5
3. Department of Biological Sciences; University of Alberta; CW 405, Biological Sciences Bldg. Edmonton AB Canada T6G 2E9
4. Royal Alberta Museum; 12845 102 Avenue Edmonton AB Canada T5N 0M6
5. Department of Ecology and Evolutionary Biology; University of Toronto; 25 Harbord St. Toronto ON Canada M5S 3G5
6. Purdue University - North Central; Westville IN 46391 USA
7. Institute for Applied Ecosystem Studies; Northern Research Station; USDA Forest Service; 5985 Hwy K Rhinelander WI 54501 USA