Animal-borne video systems provide insight into the reproductive behavior of the Asian black bear.
Animal-borne video systems provide insight into the reproductive behavior of the Asian black bear.
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DOI：
10.1002/ece3.7722
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发表时间：
2021-07
影响因子：
2.6
通讯作者：
Koike S
中科院分区：
文献类型：
--
作者：
Naganuma T;Tanaka M;Tezuka S;M J G Steyaert S;Tochigi K;Inagaki A;Myojo H;Yamazaki K;Koike S
以往对亚洲黑熊（Ursus thibetanus）交配系统的研究仅限于对圈养种群的观察和对多个父系的估计。因此，野生熊的交配系统仍然知之甚少。动物携带的摄像系统（即，安装在动物身上的照相机）提供了研究难以捉摸的动物的行为的新颖工具。在这里，我们使用了一个动物携带的视频系统来记录野生熊在交配季节的活动。2018年5月和6月，在日本中部东京捕获的4只成年亚洲黑熊（雄性“A”和“B”，雌性“A”和“B”）上安装了摄像机项圈。这些项圈于2018年7月被取回，之后视频数据被下载并分析了熊的活动和交配行为。在部署期间（范围36-45天），发现所有熊在一段时间内（范围9-22天）与其他可识别的熊相互作用，并记录了雄性的多次交配。男性和女性在社交日表现出不同的行为（即，熊与同种动物相互作用的日子）与单独的日子（即，未观察到与同种的相互作用的天数）。与单独日相比，熊在社交日用于觅食活动的时间比例较低，用于休息活动的时间比例较高。我们的研究结果表明，亚洲黑熊有一个一夫多妻制的交配系统，因为两性配偶和潜在的交配与多个合作伙伴在一个给定的交配季节。此外，熊似乎减少了他们的觅食活动的社会日，并从事更多的社会互动。亚洲黑熊有一夫多妻制的交配系统，因为在特定的交配季节，两性都有可能与多个伴侣交配。我们记录了交配行为影响活动预算，熊花更少的时间在喂养和更多的时间在休息的日子，当熊与同种互动。动物传播的视频系统有助于揭示难以捉摸的物种的行为。
Previous studies on the mating system of the Asian black bear (Ursus thibetanus) have been limited to observations of captive populations and estimations of multiple paternities. Hence, the mating system of wild bears remains poorly understood. Animal‐borne camera systems (i.e., cameras mounted on animals) provide novel tools to study the behavior of elusive animals. Here, we used an animal‐borne video system to record the activities of wild bears during the mating season. Video camera collars were attached to four adult Asian black bears (male “A” and “B,” and female “A” and “B”) captured in Tokyo, central Japan, in May and June 2018. The collars were retrieved in July 2018, after which the video data were downloaded and analyzed in terms of bear activity and mating behavior. All the bears were found to interact with other uniquely identifiable bears for some of the time (range 9–22 days) during the deployment period (range 36–45 days), and multiple mating in males was documented. Both males and females exhibited different behaviors on social days (i.e., days when the bear interacted with conspecifics) compared with solitary days (i.e., days with no observed interactions with conspecifics). Compared with solitary days, the bears spent a lower proportion of time on foraging activities and higher proportion of time on resting activities on social days. Our results suggest that Asian black bears have a polygamous mating system, as both sexes consort and potentially mate with multiple partners during a given mating season. Furthermore, bears appeared to reduce their foraging activities on social days and engaged more in social interactions. Asian black bears have a polygamous mating systems, as both sexes consort and potentially mate with multiple partners during a given mating season. We documented that mating behavior affected activity budgets, with bears spending less time on feeding and more time on resting on the days when the bear interacted with conspecifics. Animal‐borne video systems are useful to reveal the behavior of elusive species.
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影响因子：
2.5
作者：
Alberts, SC;Altmann, J;Wilson, ML
通讯作者：
Wilson, ML
影响因子：
2.9
作者：
ARNOLD, SJ;DUVALL, D
通讯作者：
DUVALL, D
影响因子：
3.7
作者：
Shimozuru M;Yamanaka M;Nakanishi M;Moriwaki J;Mori F;Tsujino M;Shirane Y;Ishinazaka T;Kasai S;Nose T;Masuda Y;Tsubota T
通讯作者：
Tsubota T
影响因子：
1.5
作者：
Koike, Shinsuke;Morimoto, Hideto;Yamazaki, Koji
通讯作者：
Yamazaki, Koji
影响因子：
3.3
作者：
Fuchs, Boris;Yamazaki, Koji;Arnemo, Jon M.
通讯作者：
Arnemo, Jon M.