温帯落葉樹林の皆伐後の二次遷移にともなう昆虫相の変化  [in Japanese] Changes in Insect Assemblages with Secondary Succession of Temperate Deciduous Forests after Clear-cutting  [in Japanese]

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Author(s)

Abstract

茨城県北部にある老齢自然林と皆伐後の経過年数の異なる二次林にマレーズトラップを設置して, 昆虫相を比較した.その結果, 林齢にともなう昆虫の種数と種組成の変化は, 昆虫のグループによって大きく異なることが分かった.カメムシ類とスズメバチ類では, 森林の遷移にともなう種数や種組成の明瞭な変化は認められなかった.チョウ類の種数は, 若い二次林に最も多く, 古い二次林ではやや減少した.また, 林齢によって種組成が変化した.カミキリムシ類は古い二次林で最も多くの種が捕獲され, 種組成は森林の遷移に応じて変化した.一方, クワガタムシ類は種数, 個体数ともに老齢自然林が最も豊富であった.林業地域において森林昆虫の多様性を保全するには, 昆虫の生息場所としての二次林の役割と限界について十分に理解する必要があろう.

We compared insect catches in Malaise traps from an oldgrowth natural forest with those from young and old secondary forests regenerating after clear-cutting in the north of Ibaraki Prefecture, central Japan. Changes in species richness and species composition with forest age were clearly different among insect groups. Assemblages of plant bugs (Pentatomoidea excepting the Asopinae) as well as vespid wasps did not show obvious changes in species richness or species composition with forest succession. Species richness of butterflies (Papilionoidea and Hesperioidea) was highest in young secondary forest, and it declined in old secondary forests. Also, their species composition gradually changed with forest age. More species of longicorn beetles (Disteniidae and Cerambycidae) were caught in old secondary forests than in young secondary forest and in old-growth forest ; and their species composition distinctively altered with forest succession. On the other hand, lucanid beetles were highest in old-growth forest both in species richness and abundance. We must better understand the role and limits of secondary forests as habitats of various insects in order to maintain forest insect diversity in forestry areas.

Journal

  • Japanese Journal of Entomology (New Series)

    Japanese Journal of Entomology (New Series) 2(1), 11-26, 1999

    Entomological Society of Japan

References:  32

Cited by:  9

Codes

  • NII Article ID (NAID)
    110003374822
  • NII NACSIS-CAT ID (NCID)
    AA11248127
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1343-8794
  • NDL Article ID
    4733730
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z74-B297
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
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