Estimation of Bird Species that Utilize Japanese Cedar and Cypress Plantations with High Probability

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  • Endo Sachiko
    Kanagawa Prefecture Natural Environment Conservation Center Graduate School of Agriculture, Tokyo University of Agriculture
  • Naruse Mario
    Kanagawa Prefecture Natural Environment Conservation Center Prefectural Administration Center in West Region of Kanagawa Prefecture
  • Kondo Hirofumi
    Kanagawa Prefecture Natural Environment Conservation Center Faculty of Environment and Information Sciences, Yokohama National University
  • Tamura Atsushi
    Kanagawa Prefecture Natural Environment Conservation Center

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  • スギ・ヒノキ人工林を利用する確率の高い鳥類種の推定
  • スギ ・ ヒノキ ジンコウリン オ リヨウ スル カクリツ ノ タカイ チョウルイシュ ノ スイテイ

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Abstract

<p>Artificial forests account for approximately 40％ of the forested area in Japan, and these forests are expected to serve not only as timber sources, but also as important habitats for wildlife. However, the diversity and ecology of species constituting this ecosystem is not well understood. In this study, we revealed the bird species that observed in Japanese cedar and cypress plantations and discussed the ecological characteristics of the species. Surveys were conducted at 57 study points located in 3 mountain areas in western Kanagawa Prefecture during the breeding season of birds from May to June from 2014 to 2018. We observed 45 species of birds within 8 orders and 26 families in the forests; the number of species and the composition was not different between Japanese cedar and cypress plantations. We repeatably confirmed 12 species within 2 orders and 9 families, including 10 resident birds and 2 summer species, across years and study areas, suggesting that they are the species which utilize coniferous plantations with high probability. Of those 12 species, 11 species were insectivorous. Furthermore, 10 of those species tended to build nests in trees or within tree cavities. Our results suggest that species with a high probability of utilizing coniferous plantations have high commonality with respect to food habits and nest site selection.</p>

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