Ecological study of the myrmecofauna in pine forests with different altitudes and physiognomies.

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  • TOUYAMA Yoshifumi
    Department of Environmental Studies, Faculty of Integrated Arts and Sciences, Hiroshima University
  • YAMAMOTO Tetsuya
    Forestry Department, Hiroshima Prefectural Government

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  • 標高・植生の異なるアカマツ林におけるアリ相の比較
  • ヒョウコウ ショクセイ ノ コトナル アカマツバヤシ ニ オケル アリソウ ノ

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Abstract

It is well known that the soil fauna changes with altitudinal gradient, corresponding to gradual changes in certain environmental factors such as climatic conditions and / or vegetation structure. Both climatic conditions and vegetation structure are significant parameters affecting the soil arthropod fauna. Although there have been many studies of fauna with respect to altitudinal gradient, few have attempted to separate the effects of climatioc and vegetation factors. Therefore, for this purpose, we surveyed the myrmecofauna in pine forests with different altitudes (210-810 m) and physiognomies in the Setouchi region, Hiroshima Prefecture. Ant species richness was explained mainly by the two environmental parameters, vegetation structure and altitude. On the other hand, ant species composition seemed to change with altitude.

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