1. Department of Biology, University of New Brunswick, 10 Bailey Drive, Fredericton, NB E3B 5A3, Canada
2. Population Ecology Group, Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, NB E3B 6C2, Canada
3. Forest Protection Limited, Fredericton International Airport, 2502 Route 102 Highway, Lincoln, NB E3B 7E6, Canada