Improvements of the Alpine Capture Systems Cloth Trap for Capturing Deer

Improvements of the Alpine Capture Systems Cloth Trap for Capturing Deer

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Abstract

洞爺湖中島において移動式シカ用囲いワナの一種であるアルパインキャプチャーシステム(Alpine Deer Group Ltd., Dunedin, New Zealand)を用いたエゾシカ Cervus nippon yesoensis の生体捕獲を行った.1992年3月から2000年2月までに,59日間,49回の捕獲試行において143頭を捕獲した.この間,アルパインキャプチャーの作動を,1ヶ所のトリガーに直接結びつけたワイヤーを操作者が引く方法から,電動式のトリガーを2ヶ所に増設して遠隔操作する方法に改造した.その結果,シカの警戒心の低減およびワナの作動時間の短縮によってシカの逃走を防止し,捕獲効率(捕獲数/試行数)を約1.1頭/回から3.5頭/回に向上させることができた.

English Abstract

A total of 143 sika deer was captured using the Alpine Capture Systems cloth trap (Alpine Deer Group Ltd., New Zealand) on kanoshima Island, Hokkaido, between March 1992 and February 2000. When we changed the trigger type of the trap from a hand-pulled single trigger to remote-controlled double triggers, number of deer that escape from the trap decreased due to reduction of wariness among the deer and reduction in the lapse time to close the trap. The capturing efficiency of the trap improved from about 1.1 to 3.5 deer per trial.

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Article Information

Title (non-english): シカ捕獲ワナ アルパインキャプチャーシステムの改良
Country: Japan
Language: Japanese
Year: 2002
Study Design: After
Authors: Hiroshi Takahashi// Koichi Kaji// Mitsuo Yoshida// Hifumi Tsuruga// Toshio Kurumada// Masatsugu Suzuki// Ma bu Onuma
Journal: Mammalian Science
Volume: 42
Issue: 1
Pages: 45-51
City/state or province/country: Toya Lake, Hokkaido prefecture, Japan