The Difference of Cicada Species Community Composition according to the Vegetation at Komayama, Kanagawa Pref.

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  • 神奈川県高麗山における植生の違いによるセミ類種構成の差異
  • カナガワケン コマヤマ ニ オケル ショクセイ ノ チガイ ニヨル セミルイシ

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The purpose of this study is to clarify the difference of cicader species according to the forest stand. The objective area was settled around Komayama hill (altitude 167.3m) in Ohiso-town, Kanagawa prefecture. The survey routes were fixed in evergreen bload leaf forest, deciduous bload leaf forest, evergreen and broad leaf mixed broad leaf forest, and evergreen conifer forest.The cicada's shells were collected every week during the season in 1996 and the number of each species in each forest stands were counted. In total, 1363 shells of 5 species were registered. The highest shell number per area among the stands was recorded at evergreen bloadleaf forest. However, in case of particular cicada species, the number per area in deciduous forest is much higher than in evergreen forest. Therefore, the diversity of the flora is important to keep diversity of species even within family of cicadas. The difference of cicada species density according to the luminance, soil hardness and soil water content were also founded.

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