- Palman, Deborah S.
University of Maine Graduate School
Total numbers of small mammals trapped on road grids adjacent top the highway and on control grids 300-400 m from the highway were not significantly different. However, catches of individual species differed. More red-backed voles (Clethrionomys gapperi) were caught on control grids (P < 0.05), and more woodland jumping mice (Napaeozapus insignis) were caught on road grids (P < 0.01). Catches from control and median strip grids were different (P<0.05) for the following species: red-backed voles, deer mice (Peromyscus manuculatus), masked shrews (Sorex cinerus), and meadow voles (Microtus pennsylvanicus): however, total catches were similar. Diversity indices for road grids were greater than indices for control grids, probably reflecting changes in habitat caused by highway construction.