北海道におけるアライグマ捕獲のための Egg^<TM> Trap の有効性と混獲防止効果の検証  [in Japanese] An evaluation of the efficacy of the Egg^<TM> trap for capturing feral raccoons in Hokkaido  [in Japanese]

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Author(s)

    • 阿部 豪 ABE Go
    • 北海道大学大学院文学研究科地域システム科学講座 Graduate School of Letters, Hokkaido University
    • 的場 洋平 [他] MATOBA Yohei
    • 酪農学園大学獣医学部感染病理部門獣医寄生虫病学教室 Department of Veterinary Parasitology, Rakuno Gakuen University
    • 佐鹿 万里子 SASHIKA Mariko
    • 酪農学園大学獣医学部感染病理部門獣医寄生虫病学教室 Department of Veterinary Parasitology, Rakuno Gakuen University
    • 高野 恭子 TAKANO Yasuko
    • 北海道環境生活部環境局自然環境課 Nature of Environment Division, Department of Environment and Lifestyle, Hokkaido Government
    • 池田 透 IKEDA Tohru
    • 北海道大学大学院文学研究科地域システム科学講座 Graduate School of Letters, Hokkaido University

Abstract

箱ワナによる外来アライグマ捕獲における諸問題である 1)他動物の錯誤捕獲,2)小動物による餌の持ち逃げや誤作動,3)トラップシャイ個体の存在,4)捕獲個体によるワナの破壊と逃亡,5)ワナの購入・運搬・管理に係るコスト高などの改善を図るため,アライグマ捕獲用に開発されたエッグトラップ7個を用いて試用捕獲(200 trap nights)を行った.その結果,野生個体としては高齢のアライグマ2頭(5歳オス,6歳メス)をいずれも無傷で捕獲した.捕獲期間中に錯誤捕獲は1例もなく,また誤作動は本体内部が破損した1例だけだった.さらに,鉄杭にワナを吊るす設置法では,他動物による餌の持ち逃げも確認されなかった.今回の結果から,エッグトラップは一般的な箱ワナに比べて小型軽量,安価で,メンテナンスも容易であるため,箱ワナに代わるか,もしくは箱ワナとの併用によって,より捕獲効率を高めうる捕獲用具になる可能性が示唆された.

The wire cage trap, which is the most popular restraining measure for capturing feral raccoons (<i>Procyon lotor</i>) in Japan, has some problems, including 1) capturing untargeted animals, 2) bait stealing by small animals and mechanical failure, 3) trap-shyness, 4) tendency to break due to the activities of captured animals, and 5) high cost of purchasing, transportation and maintenance. Seven Egg<sup>TM</sup> traps were employed to examine their efficacy in preventing these problems. In this study, 2 feral raccoons (a 5-year-old male and a 6-year-old female) were captured without injury over 200 trap nights. No untargeted animals were captured and only one trap failed due to a crack in inner parts. There was also no bait loss recorded with the bait-setup that involved a trap hanging from an iron pole. The results showed that the Egg<sup>TM</sup> traps, which are cheaper, smaller, lighter, and easier to maintain than live cage traps, could help resolve or reduce some problems of live cage traps in capturing feral raccoons.

Journal

  • Honyurui Kagaku (Mammalian Science)

    Honyurui Kagaku (Mammalian Science) 46(2), 169-175, 2006-12-30

    The Mammal Society of Japan

References:  17

Cited by:  1

Codes

  • NII Article ID (NAID)
    10018467874
  • NII NACSIS-CAT ID (NCID)
    AN00231656
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0385437X
  • NDL Article ID
    8626706
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z18-1160
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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