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Manuscript Report 169
169. Larter N.C., D. Johnson and D. Allair. 2006.
Aerial Wildlife Survey of the Edehzhie Candidate Protected Area and Vicinity, February 2003. 38 pp
ABSTRACT
We conducted an aerial wildlife survey of the Edéhzhíe candidate protected area and vicinity from 19-22 February, 2003. Survey legs of 4-5 hours duration were flown daily, with each leg being conducted in an area to the southeast of the previous one to maximize the area of total coverage and minimize overlapping coverage. All flights originated from Fort Simpson. Survey conditions were exceptional with cold, clear weather following immediately after a new snow fall of 10-30cm. We observed 44 boreal caribou (Rangifer tarandus caribou), 63 moose (Alces alces), 13 bison (Bison bison athabascae), and 1 wolverine (Gulo gulo) during the survey. Although caribou were observed in areas of higher elevation, both on the Horn Plateau and hills/mountains in the Wrigley area, we observed fresh feeding craters and tracks north of Fort Simpson toward the Ebbutt Hills and 25km east of Jean Marie River, north of the Mackenzie River. Caribou, and fresh cratering by caribou, were located in areas both with and without a recent (1991-2000) fire history. Although caribou and their fresh cratering tended to be found in areas predicted to be of low and medium late winter occupancy by Gunn et al. (2004), the majority of the survey was flown over areas predicted to be of low and medium caribou occupancy. Most moose were observed in lowlands surrounding the Horn Plateau to the south, north and west, and were most plentiful in burnt areas on the Laferte River. More moose were observed in the recently burned areas (1991-2000), and in areas predicted to have a medium or low level of occupancy of boreal caribou. Bison were observed on the east flank of the Horn Plateau and in the Mills Lake and Mink Lake areas. Fresh sign was seen as far north as the Horn River 35km NW of Fawn Lake (62o 17'N x 117o 55'W) and as far west along both the Laferte and Rabbitskin Rivers at Rabbitskin Lake (61o 38'N x 119o 20'W). This is the farthest west report for bison. Bison and fresh craters were found in areas that had burnt in the 1970's and in areas predicted to have a low level of boreal caribou occupancy. The wolverine was sighted on the Horn Plateau in an area that had not burnt since 1970.
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