McLean, B.D. 1992. Abundance and distribution of caribou on Banks Island, NWT, July 1987. 28 pp.

ABSTRACT

 A stratified strip transect survey of Banks Island, NWT was flown between 27 and 30 June, 1987.  The survey documented distribution and numbers of Peary caribou (Rangifer tarandus pearyi) . The total number of non-calf caribou observed on transect was 432, resulting in an estimate of 4500 + 660 (SE of estimate).  Densities varied from 0.02 caribou/km² in the low-density stratum to 0.4 caribou/km² in the high-density stratum on north-western Banks Island.  Mean group size, including calves, was 4.1 + 3.04 (S.D.) overall and was significantly greater in the high-density area.  The proportion of calves to total caribou classified was 22.6% (126/557).  The population estimate suggests that numbers have declined from the 1970s.  Observations of muskoxen (Ovibos moschatus) were also recorded.  That data will be used to map distribution and plan for a population survey of muskoxen in 1989.

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