Predicting Occurrence of River Otters by Habitat on Mount Desert Island, Maine
Dubuc LJ, Krohn WB, Owen RB, Department of Wildlife, University of Maine, United States Fish And Wildlife Service. 1990. Predicting Occurrence of River Otters by Habitat on Mount Desert Island, Maine. The Journal of Wildlife Management. 54(4):594-599
We developed a model predicting occurrence of river otters (Lutra canadensis) by comparing 19 watersheds used by otters with 14 unused watersheds during 1985-87. Of 39 habitat variables initially measured, 4 provided good discrimination between used and unused watersheds. Otter use was negatively associated with the proportion of mixed hardwood-softwood stands in forested areas adjacent to waterways and positively associated with the number of beaver flowages, watershed length, and average shoreline diversity. Our model correctly classified 94% of the watersheds and demonstrated 88% better classification than could be achieved by chance alone. /STUDY LOCATIONS:/ /MOUNT DESERT ISLAND/
- Type
- Journal Article
- Authors
- Dubuc, Leslie; Krohn, William; Owen, Ray; Department of Wildlife, University of Maine; United States Fish And Wildlife Service
- Units
- ACAD
- Keywords
- Beaver (Castor canadensis), Mammals, Mount Desert Island, River Otter (Lutra canadensis)