Diel and monthly activity pattern of brown bears and sika deer in the Shiretoko Peninsula, Hokkaido, Japan

Kawamura, Kei; Jimbo, Mina; Adachi, Keisuke; Shirane, Yuri; Nakanishi, Masanao; Umemura, Yoshihiro; Ishinazaka, Tsuyoshi; Uno, Hiroyuki; Sashika, Mariko; Tsubota, Toshio; Shimozuru, Michito

Diel and monthly activity pattern of brown bears and sika deer in the Shiretoko Peninsula, Hokkaido, Japan

Kawamura, Kei; Jimbo, Mina; Adachi, Keisuke et al.

Journal of veterinary medical science, 2022, 84(8), 1146-1156

Permalink : https://hdl.handle.net/2115/87314

このアイテムのアクセス数:310件（2026-08-26 07:16 集計）

閲覧可能ファイル

ファイル	フォーマット	サイズ	閲覧回数	説明
https://doi.org/10.1292/jvms.21-0665			30

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権	open access
URI	https://hdl.handle.net/2115/87314
タイトル	Diel and monthly activity pattern of brown bears and sika deer in the Shiretoko Peninsula, Hokkaido, Japan
著者	Kawamura, Kei ; Jimbo, Mina ; Adachi, Keisuke ; Shirane, Yuri ; Nakanishi, Masanao ; Umemura, Yoshihiro ; Ishinazaka, Tsuyoshi ; Uno, Hiroyuki ; Sashika, Mariko ; Tsubota, Toshio ; Shimozuru, Michito
著者名 Kawamura, Kei
著者名 Jimbo, Mina
著者名 Adachi, Keisuke
著者名 Shirane, Yuri
著者名 Nakanishi, Masanao
著者名 Umemura, Yoshihiro
著者名 Ishinazaka, Tsuyoshi
著者名 Uno, Hiroyuki
著者名 Sashika, Mariko
e-Rad_Researcher 10207441 著者名 Tsubota, Toshio
e-Rad_Researcher 50507168 著者名 Shimozuru, Michito
言語	英語
キーワード	activity pattern
	brown bear
	camera-trap
	diel rhythm
	sika deer
発行日	2022-08-19
出版者	公益社団法人日本獣医学会 (The Japanese Society of Veterinary Science)
収録物名	Journal of veterinary medical science
巻(号)	84(8)
ページ	1146-1156
抄録	Mammals exhibit several types of diel activity pattern, including nocturnal, diurnal, crepuscular, and cathemeral. These patterns vary inter-and intra-specifically and are affected by environmental factors, individual status, and interactions with other individuals or species. Determining the factors that shape diel activity patterns is challenging but essential for understanding the behavioral ecology of animal species, and for wildlife conservation and management. Using camera-trap surveys, we investigated the species distributions and activity patterns of terrestrial mammals on the Shiretoko Peninsula, Hokkaido, Japan, with particular focus on brown bears and sika deer. From June to October 2019, a total of 7,530 observations were recorded by 65 camera-traps for eight species, including two alien species. The diel activity pattern of brown bears was diurnal/ crepuscular, similar to that of bears in North America, but different from European populations. Bear observations were more frequent during the autumnal hyperphagia period, and adult females and sub-adults were more diurnal than adult males. In addition, bears inside the protected area were more diurnal than those outside it. These findings suggest that appetite motivation, competitive interactions between conspecifics, and human activities potentially affect bear activity patterns. Similar to other sika deer populations and other deer species, the diel activity patterns of sika deer were crepuscular. Deer showed less variation in activity patterns among months and sex-age classes, while adult males were observed more frequently during the autumn copulation period, suggesting that reproductive motivation affects their activity patterns.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0916-7250
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1292/jvms.21-0665