Daily activity patterns of (ussuri) brown bears

[sarus]

¨
Daily activity patterns of brown bear (Ursus arctos)
of the Sikhote-Alin mountain range (Primorskiy Krai, Russia)

I. V. Seryodkin, A. V. Kostyria, J. M. Goodrich, D. G. Miquelle

Abstract

Daily activity patterns of brown bears were monitored using radiotelemetry from
1993 to 2006, in the Sikhote-Alin Biosphere Reserve and adjacent areas. Outside
of the denning period, bears were active for approximately 52% of the 24-hour period.
Males were more active (64% of total time) than females (51%). Brown bears in the
Sikhote-Alin are diurnal and crepuscular, but switch to a nocturnal pattern in areas of
high anthropogenic influence. During the summer months, daily activity patterns were
influenced by precipitation, cloud cover, and air temperature.

Keywords: brown bear, daily activity patterns, radio-collar, radio-telemetry, Sikhote-Alin
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► link.springer.com/article/10.1134/S1067413613010104?no-access=true
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