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Tezuka S, Tanaka M, Naganuma T, Tochigi K, Inagaki A, Myojo H, Yamazaki K, Allen ML, Koike S. Comparing information derived on food habits of a terrestrial carnivore between animal-borne video systems and fecal analyses methods. J Mammal 2023; 104:184-193. [PMID: 36876239 PMCID: PMC9976756 DOI: 10.1093/jmammal/gyac101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 09/19/2022] [Indexed: 11/27/2022] Open
Abstract
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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Affiliation(s)
- Shiori Tezuka
- Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Mii Tanaka
- Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Tomoko Naganuma
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - Kahoko Tochigi
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - Akino Inagaki
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - Hiroaki Myojo
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - Koji Yamazaki
- Faculty of Regional Environmental Science, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Maximilian L Allen
- Illinois Natural History Survey, University of Illinois, Champaign, Illinois, 61820, USA
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Jimbo M, Ishinazaka T, Shirane Y, Umemura Y, Yamanaka M, Uno H, Sashika M, Tsubota T, Shimozuru M. Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals. Ecosphere 2022. [DOI: 10.1002/ecs2.4105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Mina Jimbo
- Faculty of Veterinary Medicine Hokkaido University Sapporo Japan
| | | | - Yuri Shirane
- Faculty of Veterinary Medicine Hokkaido University Sapporo Japan
- Hokkaido Research Organization Sapporo Japan
| | | | | | - Hiroyuki Uno
- Faculty of Agriculture Tokyo University of Agriculture and Technology Tokyo Japan
| | - Mariko Sashika
- Faculty of Veterinary Medicine Hokkaido University Sapporo Japan
| | - Toshio Tsubota
- Faculty of Veterinary Medicine Hokkaido University Sapporo Japan
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Naganuma T, Nakashita R, Tochigi K, Zedrosser A, Kozakai C, Yamazaki K, Koike S. Functional dietary response of Asian black bears to changes in sika deer density. J Wildl Manage 2022. [DOI: 10.1002/jwmg.22218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tomoko Naganuma
- Institute of Global Innovation Research Tokyo University of Agriculture and Technology 3‐5‐8 Saiwai‐cho Fuchu Tokyo 183‐8509 Japan
| | - Rumiko Nakashita
- Forestry and Forest Products Research Institute 1 Matsunosato Tsukuba Ibaraki 305‐8687 Japan
| | - Kahoko Tochigi
- United Graduate School of Agricultural Science Tokyo University of Agriculture and Technology 3‐5‐8 Saiwai‐cho Fuchu Tokyo 183‐8509 Japan
| | - Andreas Zedrosser
- Department of Natural Sciences and Environmental Health University of South‐Eastern Norway Gullbringvegen 36 3800 Bø Telemark Norway
| | - Chinatsu Kozakai
- National Agriculture and Food Research Organization 2‐1‐18 Kannondai Tsukuba Ibaraki 305‐8666 Japan
| | - Koji Yamazaki
- Department of Forest Science Faculty of Regional Environmental Science Tokyo University of Agriculture 1‐1‐1 Sakuragaoka Setagaya Tokyo 156‐8502 Japan
| | - Shinsuke Koike
- Institute of Global Innovation Research Tokyo University of Agriculture and Technology 3‐5‐8 Saiwai‐cho Fuchu Tokyo 183‐8509 Japan
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Sato JJ. Editorial. MAMMAL STUDY 2022. [DOI: 10.3106/47-1-e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Jimbo M, Matsumoto N, Sakamoto H, Yanagawa Y, Torii Y, Yamanaka M, Ishinazaka T, Shirane Y, Sashika M, Tsubota T, Shimozuru M. Hair Growth in Brown Bears and Its Application to Ecological Studies on Wild Bears. MAMMAL STUDY 2020. [DOI: 10.3106/ms2020-0021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Mina Jimbo
- Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Naoya Matsumoto
- Noboribetsu Bear Park, 224 Noboribetsuonsencho, Noboribetsu, Hokkaido 059-0515, Japan
| | - Hideyuki Sakamoto
- Noboribetsu Bear Park, 224 Noboribetsuonsencho, Noboribetsu, Hokkaido 059-0515, Japan
| | - Yojiro Yanagawa
- Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Yoshiko Torii
- Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Masami Yamanaka
- Shiretoko Nature Foundation, 531 Iwaubetsu, Shari, Hokkaido 099-4356, Japan
| | | | - Yuri Shirane
- Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Mariko Sashika
- Department of Environmental Veterinary Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Toshio Tsubota
- Department of Environmental Veterinary Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Michito Shimozuru
- Department of Environmental Veterinary Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
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