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Vigilance behaviour of polar bears (Ursus maritimus) in the context of wildlife-viewing activities at Churchill, Manitoba, Canada
Markus G Dyck, Richard K BaydackVolume:
116
Year:
2004
Language:
english
DOI:
10.1016/s0006-3207(03)00204-0
File:
PDF, 190 KB
english, 2004