1. Department of Biology; Memorial University of Newfoundland; St John's Newfoundland and Labrador A1B 3X9 Canada
2. Department of Environment and Conservation, Wildlife Division, Corner Brook, 117 Riverside Drive; P.O Box 2007 NL A2H 7S1 Canada
3. Department of Environment and Conservation, Wildlife Division; 10 Burns Road Whitehorse YK Y1A 4Y9 Canada