Use of a spatially explicit capture-recapture model to estimate population density of the Japanese dormouse <i>Glirulus japonicus </i>in Nagano Prefecture, Central Japan

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  • Hagata Hiroki
    Graduate School of Life and Environmental Science, University of Tsukuba Present address: Miyake Island Branch Office, Tokyo Metropolitan Government
  • Kadowaki Seishi
    Yatsugatake Forest, Mountain Science Center, University of Tsukuba Present address: Mountain Science Center, University of Tsukuba
  • Morosawa Takahiro
    Japan Wildlife Research Center
  • Sugiyama Masanori
    Yatsugatake Forest, Mountain Science Center, University of Tsukuba

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  • 空間明示標識再捕モデルを用いた長野県におけるヤマネ<i>Glirulus japonicus</i>の生息密度推定
  • 空間明示標識再捕モデルを用いた長野県におけるヤマネGlirulus japonicusの生息密度推定
  • クウカン メイジ ヒョウシキ サイホモデル オ モチイタ ナガノケン ニ オケル ヤマネ Glirulus japonicus ノ セイソク ミツド スイテイ

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Abstract

<p>We used a spatially explicit capture-recapture model to estimate the population density of the Japanese dormouse Glirulus japonicus in Nagano Prefecture, Central Japan. From May to October 2014, resting G. japonicus were captured from nest boxes (n = 297) installed in the region, and individually identified. Of the 37 males captured, 5 were recaptured individuals; while 10 of the 34 captured females were recaptured. The population density estimates for the dormouse were 1.93 ± 0.35 individuals/ha (mean ± SD) overall, 0.65 ± 0.25 individuals/ha for males and 3.32 ± 1.27 individuals/ha for females. The female population density estimate was extremely greater than the male population density. The home range sizes of the dormouse were 3.42 ha in total, 3.96 ha for males and 0.98 ha for females. The estimates from the present study should not be generalized; however, after obtaining the population density estimates for the Japanese dormouse in other areas, comparisons between areas would be informative.</p>

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