Evaluating of Determining Species Diversity of Medium and Large-sized Mammals by Camera Trapping in Pastures

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  • TSUKADA Hideharu
    Miyota Research Station, National Institute of Livestock and Grassland Science, NARO
  • FUKASAWA Michiru
    Nasu Research Station, National Institute of Livestock and Grassland Science, NARO
  • KOSAKO Takami
    National Institute of Livestock and Grassland Science, NARO

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  • 放牧地における自動撮影装置を用いた中大型哺乳動物の種多様性測定法の検討
  • ホウボクチ ニ オケル ジドウ サツエイ ソウチ オ モチイタ チュウオオガタ ホニュウ ドウブツ ノ シュ タヨウセイ ソクテイホウ ノ ケントウ

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Abstract

In the course of determining species diversity of medium and large-sized mammals by camera trapping, the effects of possible bias factors such as year, season, type of remote camera, grazing condition, attractants including baits and scent lures, and site selection were evaluated. The survey effort required to detect the present mammal species was also estimated. As a result, the number of species detected and the frequency of each species photographed by camera traps were affected to a various degree by all these possible bias factors. Therefore, the effects of these factors must be reduced when the camera trapping is conducted as an accurate survey of mammal fauna. The survey effort required to detect the present mammal species varied enormously among study sites, and could not be estimated in advance. Thus, the survey effort must be evaluated after a preliminary survey of camera trapping is conducted.

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