PR (Wolf 2020): 072 - Precalving distribution and abundance of barren-ground caribou on the Northeastern Mainland of the Northwest Territories.

An aerial survey with about 5% coverage of the northeastern mainland, Northwest Territories (342 000 km²) was conducted 5-12 May 1983. We estimated there were 120,000 + 13,900 caribou (0.35 + 0.041caribou km²) in the studyarea. Mean caribou group size ranged from 6 to 11 among nine strata and was correlated (r= 0.81) with stratum caribou density. We found four regions of high caribou density. Three regions coincided with the calving grounds of previously defined herds, the Melville, Wager, and Lorillard, and the fourth suggests a discrete population in the previously unsurveyed area south of the Queen Maud Gulf.

Key words: caribou, aerial survey, Rangifer, distribution, abundance, northeastern Northwest Territories