Evaluation of sardine bait stations to monitor Asiatic black bear populations in Nagano Prefecture, central Japan

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Regular monitoring of bear (<i>Ursus</i> spp.) populations is important to ensure that conservation policies are appropriate. Although population estimates may be less ambiguous than population trend estimates, they are more difficult and expensive to obtain. Bait station surveys are commonly used in North America to monitor bear population trends. We tested sardine bait stations as a monitoring tool for Asiatic black bear (<i>U. thibetanus</i>) populations in Nagano Prefecture, central Japan, in summer and fall 1999 and in spring 2000. We established 341 sardine bait stations in five study areas. Eighteen (<span style="text-decoration: overline;">X</span> = 5.45%; range = 0-10.8%) bait stations were visited by bears and 21 (<span style="text-decoration: overline;">X</span> = 6.36%; range = 0-17.8%) were visited by non-target animals, and 11 were discarded due to data collection concerns. In the only area we tested during three seasons (Northern Japanese Alps), we obtained the highest (8.3%) visitation rates in summer, the lowest (4.5%) in spring, and intermediate rates (5.6%) in fall. These visitation rates are too low to be a reliable indicator of bear abundance.

収録刊行物

  • Biosphere conservation : for nature, wildlife, and humans

    Biosphere conservation : for nature, wildlife, and humans 4(1), 37-41, 2001

    「野生生物と社会」学会

参考文献:  28件中 1-28件 を表示

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各種コード

  • NII論文ID(NAID)
    110001817333
  • NII書誌ID(NCID)
    AA11499342
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    1344-6797
  • データ提供元
    CJP書誌  CJP引用  NII-ELS  J-STAGE 
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