The preference effect of soy sauce for efficient capture method in sika deer (<i>Cervus nippon</i>) population

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  • Ikeda Takashi
    Laboratory of Wildlife Management, Tokyo University of Agriculture and Technology Faculty of Environmental Earth Science, Hokkaido University
  • Kodama Hiromu
    Game Management Laboratory, Rakuno Gakuen University
  • Matsuura Yukiko
    Hokkaido Research Center, Forestry and Forest Products Research Institute
  • Takahashi Hiroshi
    Kansai Research Center, Forestry and Forest Products Research Institute
  • Azumaya Munemitsu
    Game Management Laboratory, Rakuno Gakuen University
  • Maru Tomoaki
    Game Management Laboratory, Rakuno Gakuen University
  • Yoshida Tsuyoshi
    Wildlife Management Laboratory, Rakuno Gakuen University
  • Igota Hiromasa
    Game Management Laboratory, Rakuno Gakuen University

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Other Title
  • ニホンジカの効率的な捕獲に向けた醤油の選択効果の検証
  • ニホンジカ ノ コウリツテキ ナ ホカク ニ ムケタ ショウユ ノ センタク コウカ ノ ケンショウ

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Abstract

We conducted a feeding experiment to test the effect of soy sauce on the ability to efficiently capture sika deer (Cervus nippon). We set baits (only soy sauce, only dried grass and dried grass with soy sauce) 3–5 times and recorded photographic frequency using a camera-trap survey on Nakanoshima Island, Hokkaido, Japan, on 7th November and 17th November in 2012. We investigated differences in photographic frequencies among the three baits after each feeding and throughout the study period. The photographic frequency of soy sauce was significantly lower than at dried grass and dried grass with soy sauce, respectively. The frequency at dried grass with soy sauce was significantly higher than that in dried grass. Therefore, we suggest that there was no effect of only soy sauce. However, we showed that deer preferred grass baits with soy sauce.

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