Population survey of Peary caribou (Rangifer tarandus pearyi) and muskoxen (Ovibos moschatus) on Banks Island, Northwest Territories, July 2010

We conducted a systematic aerial transect survey of Peary caribou (Rangifer tarandus pearyi) and muskoxen (Ovibus moschatus) on Banks Island, Northwest Territories, in July 2010. The population estimate of adult Peary caribou was 1097 ± 343 (95% Confidence Interval: CI), which is not significantly d...

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Bibliographic Details
Published in:Rangifer
Main Authors: Tracy Davison, Jodie Pongracz, Judy Williams
Format: Article in Journal/Newspaper
Language:English
Published: Septentrio Academic Publishing 2013
Subjects:
Banks Island
muskoxen
Ovibos moschatus
Peary caribou
population survey
Rangifer tarandus pearyi
Animal culture
SF1-1100
Northwest Territories
Peary
caribou
ovibos moschatus
Rangifer
Rangifer tarandus
Online Access:https://doi.org/10.7557/2.33.2.2539
https://doaj.org/article/4ac844a7344c405098c25980ef85f49b
Description
Summary:We conducted a systematic aerial transect survey of Peary caribou (Rangifer tarandus pearyi) and muskoxen (Ovibus moschatus) on Banks Island, Northwest Territories, in July 2010. The population estimate of adult Peary caribou was 1097 ± 343 (95% Confidence Interval: CI), which is not significantly different from the 2005 estimate of 929 ± 289 (95% CI; P < 0.05). The current number, however, is a 4- to 9-fold decrease since the 1980s. The adult muskoxen population estimate was 36 676 ± 4031 (95% CI), which is significantly lower than the 2005 estimate of 47 209 ± 3997 (95% CI; P < 0.05).

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