. The Canadian field-naturalist. 470 The Canadian Field-Naturalist Vol. 112 Table L Latitude and longitude, dominant vegetation, and stream classifications (using Rosgen's [1994] classification) for 18 creek Beaver trapping locations in Wyoming. Stream Name Latitude, Longitude Dominant Vegetation Stream Classification Barrett Creek 41°20'N, 106°31'W Willow {Salix spp.) B3 Brush Creek 4r37'N, 106°37'W Cottonwood {Populus spp.) and willow B3 Brush Creek 41°38'N, 106°33'W Willow Calf Creek 41°14'N, 106°54'W Conifer and willow A3 Cheyenne River 43°27'N, 104°30'W Cottonwood F5 Cheyenne River 43°32'
. The Canadian field-naturalist. 470 The Canadian Field-Naturalist Vol. 112 Table L Latitude and longitude, dominant vegetation, and stream classifications (using Rosgen's [1994] classification) for 18 creek Beaver trapping locations in Wyoming. Stream Name Latitude, Longitude Dominant Vegetation Stream Classification Barrett Creek 41°20'N, 106°31'W Willow {Salix spp.) B3 Brush Creek 4r37'N, 106°37'W Cottonwood {Populus spp.) and willow B3 Brush Creek 41°38'N, 106°33'W Willow Calf Creek 41°14'N, 106°54'W Conifer and willow A3 Cheyenne River 43°27'N, 104°30'W Cottonwood F5 Cheyenne River 43°32'N, 104°43'W Cottonwood F5 East Fork, Medicine Bow River 41°32'N,106°25'W Aspen {Populus tremuloides) and willow B3 Flat Creek 43°28'N,110°47'W Willow D/A4 Henry's Fork, Green River 41°03'N, 110°13'W Cottonwood and willow C3 Middle Branch, 41°43'N, 105°25'W Willow B4 Middle Lodgepole Creek Middle Fork, 4ri4'N, 106°5'W Willow C4 Little Laramie River One Mile Creek 41°36'N, 106°12'W Willow B3 Mill Creek 41°31'N, 106°25'W Willow C4 Sourdough Creek 44°14'N, 107°58'W Willow B3 Turpin Creek 4r3rN, 106°25'W Aspen, conifer, and willow B3 Wagonhound Creek 41°37'N, 106°19'W Willow B4 Wolf Creek 44°50'N, 107°4rW Cottonwood and willow C3 Snares were set so that an approximately 27 cm diameter loop was resting on the ground perpendic- ular to travel and were supported by wrapping bail- ing wire around both the swivel end of the snare and a support stick that was placed perpendicular and upright to the trail (Figure 1). Beaver are very habit- ual in their use of travel corridors. We found trails and runs located throughout Beaver territories and it was easy to predict trails that were being used by examining the trail for wet areas, disturbed sedi- ment, footprints, and drag marks. Snares were placed in Beaver runs over dams, in Beaver-exca- vated canals, in runs out of the water (generally leading to feeding areas), and at underwater lodge entrances. We often u
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