北海道日高地方で発見されたセイヨウオオマルハナバチ(Bombus terrestris L.)の自然巣における高い増殖能力  [in Japanese] High reproductive ability of an alien bumblebee invader, Bombus terrestris L., in the Hidaka region of southern Hokkaido, Japan  [in Japanese]

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Author(s)

    • 松村 千鶴 MATSUMURA Chizuru
    • 東京大学大学院農学生命科学研究科:東京大学大学院農学生命科学研究科生圏システム学専攻保全生態学研究室 Institute of Agricultural and Life Sciences, University of Tokyo:Laboratory of Conservation Ecology, Department of Ecosystem Studies, Institute of Agricultural and Life Sciences, University of Tokyo

Abstract

北海道勇払郡鵡川町・厚真町と沙流郡門別町のほぼ7.75km^2の範囲にある水田や畑地,河川敷,山林において,2003年6月から9月の間にマルハナバチ類(Bombus spp.)の巣を探索し,地中のネズミ類の廃巣に作られたセイヨウオオマルハナバチ(Bombus terrestris L.)の自然巣8つを含む27の巣を発見した.そのうち9巣を採集して分解し,卵,幼虫,マユ,成虫の数をできるだけ雌雄とカースト(働きバチか女王バチか)を区別して計数するとともに,蜜の保存や排泄場所の有無などの営巣特性についての情報を収集した.新女王バチの生産に至った巣の比率には,外来と在来のマルハナバチ間で有意差はなかったが,セイヨウオオマルハナバチの1巣あたりの新女王バチ生産数は在来マルハナバチ類と比較して4.4倍の平均110頭であり,当該地域の野外でのセイヨウオオマルハナバチの増殖率の高さが示唆された.

From June to September, 2003, we searched rural areas (7.75km^2) in Mukawa, Atsuma, and Monbetsu, in the Hidaka region of southern Hokkaido, for natural nests of alien (Bombus terrestris L.) and native Japanese bumblebee species. Twentyseven nests were found. Eight B. terrestris nests had been made in abandoned rodent nests underground. The number of individuals (i.e., eggs, larvae, cocoons, adults), and nest characteristics, such as food storage and the number of excretions, were recorded for nine of the 27 nests. The B. terrestris colonies contained a mean of 110 new queens; this mean is 4.4 times larger than the mean for native bumblebees. This strongly suggests that the reproductive ability of B. terrestris is higher than that of the native bumblebees in the region.

Journal

  • Japanese Journal of Conservation Ecology

    Japanese Journal of Conservation Ecology 9(1), 93-101, 2004

    The Ecological Society of Japan

References:  25

Cited by:  10

Codes

  • NII Article ID (NAID)
    110004741104
  • NII NACSIS-CAT ID (NCID)
    AA11857952
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1342-4327
  • NDL Article ID
    7224023
  • NDL Source Classification
    ZR1(科学技術--生物学)
  • NDL Call No.
    Z18-B498
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
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