Comparing information derived on food habits of a terrestrial carnivore between animal-borne video systems and fecal analyses methods.
Comparing information derived on food habits of a terrestrial carnivore between animal-borne video systems and fecal analyses methods.
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比较动物传播视频系统和粪便分析方法之间陆地食肉动物的食物习惯的信息。
DOI：
10.1093/jmammal/gyac101
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发表时间：
2023-02
影响因子：
1.7
通讯作者：
中科院分区：
文献类型：
--
作者：
近年来，动物携带的摄像机已被用于识别许多物种的饮食习惯。然而，从动物携带的摄像机识别食性的有用性和困难还没有充分讨论在陆地哺乳动物，特别是大型杂食动物。本研究的目的是比较视频分析的觅食行为的亚洲黑熊（Ursus thibetanus）获得的摄像头项圈与估计粪便分析。我们于2018年5月至7月在日本中部的Okutama山脉为四只成年亚洲黑熊安装了配备摄像机的GPS项圈，并分析了觅食行为的视频片段。同时，我们在同一地区收集熊的粪便，以确定食物习惯。我们发现，使用视频分析有利于识别食物，如树叶或哺乳动物，这些食物在熊咀嚼和消化食物时被物理压碎或破坏，而这些食物很难通过粪便分析识别。另一方面，我们发现相机项圈不太可能记录不经常或快速摄入的食物。此外，当我们增加记录片段之间的时间时，出现频率低和每次喂食觅食时间短的食物不太可能被检测到。作为视频分析方法在熊中的首次应用，我们的研究表明，视频分析可以成为揭示个体饮食差异的重要方法。虽然视频分析可能有局限性，了解一般觅食行为的亚洲黑熊在现阶段，从相机项圈的食物习惯数据的准确性，可以通过使用它与已建立的技术，如微尺度行为分析相结合，以提高。
In recent years, animal-borne video cameras have been used to identify the food habits of many species. However, the usefulness and difficulties of identifying food habits from animal-borne video cameras have not been sufficiently discussed in terrestrial mammals, especially large omnivores. The aim of this study is to compare the video analysis of foraging behavior by Asian black bears (Ursus thibetanus) acquired by camera collars with estimates from fecal analysis. We attached GPS collars equipped with video cameras to four adult Asian black bears in the Okutama mountains in central Japan from May to July 2018 and analyzed video clips for foraging behavior. Simultaneously, we collected bear feces in the same area to determine food habits. We found that using video analyses was advantageous to recognize foods, such as leaves or mammals, that were physically crushed or destroyed while bears chewed and digested foods, which are difficult to identify to species using fecal analyses. On the other hand, we found that camera collars are less likely to record food items that are infrequently or quickly ingested. Additionally, food items with a low frequency of occurrence and short foraging time per feeding were less likely to be detected when we increased the time between recorded clips. As one of the first applications of the video analysis method for bears, our study shows that video analysis can be an important method for revealing individual differences in diet. Although video analysis may have limitations for understanding the general foraging behavior of Asian black bears at the present stage, the accuracy of food habit data from camera collars can be improved by using it in combination with established techniques such as microscale behavior analyses.
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影响因子：
2.6
作者：
Naganuma T;Tanaka M;Tezuka S;M J G Steyaert S;Tochigi K;Inagaki A;Myojo H;Yamazaki K;Koike S
通讯作者：
Koike S
影响因子：
2.5
作者：
Bowen, WD;Tully, D;Marshall, GJ
通讯作者：
Marshall, GJ
影响因子：
1
作者：
Koike, Shinsuke;Morimoto, Hideto;Yamazaki, Koji
通讯作者：
Yamazaki, Koji
亚洲黑熊（Ursus thibetanus）根据营养价值选择春季植物性食物。
影响因子：
1.3
作者：
Furusaka S;Kozakai C;Nemoto Y;Umemura Y;Naganuma T;Yamazaki K;Koike S
通讯作者：
Koike S
影响因子：
3.4
作者：
Koike, Shinsuke;Masaki, Takashi;Kaji, Koichi
通讯作者：
Kaji, Koichi