チョウの翅の傷と鳥の攻撃 Wing Damages of Butterflies and Birds' Attacks

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Abstract

一般に鱗翅目成虫が鳥などの捕食者に攻撃されてのがれた場合,翅にV字形の模様や切れ込み(beak mark)や大きくえぐれた傷ができると考えられているが,このような傷が鳥の攻撃以外の原因で生じないかどうかを室内実験により調べた.実験はPieris属の3種のチョウ(モンシロチョウ,スジグロチョウ,エゾスジグロチョウ)を用いた.野外で捕えた無傷の成虫,あるいは室内で蛸から羽化させたものを,枯枝などの障害物を設置したケージに入れて自由に飛び回らせたものを対照区,ヤマガラ・シジュウカラ・ウグイスの3種の鳥に与えて攻撃させたものを実験区として,両サンプルのチョウの翅についた傷を記録,比較した.この結果,小さな対称傷は実験区・対照区どちらのサンプルにも見られたが,大きな傷,特に大きな対称傷は鳥の攻撃によってのみ特異的に生じることが明らかになった.

In order to determine whether the distinctive damages on butterfly wings, so-called "beak marks", were inflicted only by birds' attacks, an experiment was carried out in the laboratory using butterflies of the genus Pieris as subjects. Control butterflies were put in a cage with branches as obstacles and were allowed to fly freely, while experimental butterflies were subjected to predatory attacks of caged birds (Varied Tits, Great Tits and Bush Warblers). The wing damages of both samples were then analyzed. It was concluded that large damages, especially large symmetrical damages, resulted only from birds' attacks, although not all symmetrical damages were caused by birds' attacks.

Journal

  • Lepidoptera Science

    Lepidoptera Science 35(4), 202-207, 1985

    THE LEPIDOPTEROLOGICAL SOCIETY OF JAPAN

Cited by:  1

Codes

  • NII Article ID (NAID)
    110007707563
  • NII NACSIS-CAT ID (NCID)
    AN00147618
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    0024-0974
  • NDL Article ID
    3035002
  • NDL Source Classification
    RA48(生態--動物)
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z18-73
  • Data Source
    CJPref  NDL  NII-ELS  J-STAGE 
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