ナガカメムシ2種の野外個体群における長・短翅型の出現頻度と環境条件

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タイトル別名
  • WING FORM COMPOSITION IN THE FIELD POPULATION OF THE TWO SPECIES OF LYGAEID BUGS, DIMORPHOPTERUS PALLIPES AND D. JAPONICUS, AND ITS RELATION TO ENVIRONMENTAL CONDITIONS
  • ナガカメムシ 2シュ ノ ヤガイ コタイグン ニ オケル チョウ タン シガタ

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抄録

Two species of Lygaeid bugs, D. pallipes and D. japonicus, have two wing forms, macropterous and brachypterous. A field study was carried out in 1975 and 1976 to clarify the relation between the frequency of appearance of two wing forms and environmental factors. The frequency distribution of relative wing length in those two species was relatively discontinuous as compared with that of the related species Cavelerius saccharivorus. In both species, frequency of macropterous form was higher in the 1st (summer) generation than in the 2nd. A closer examination of the relationship between the appearance of macropterous form and local density in the summer generation indicated that macropterous form would appear when the density exceeded a certain threshold. These results are generally similar to those reported for C. saccharivorus, but the percentage of macropterous form seems to be considerably lower in the two species reported here. Such a difference might be related to the difference in stability or persistence of their habitats ; D. pallipes and D. japonicus live on wild perennial plants (Phragmites and Miscanthus respectively) whereas C. saccharivorus mainly lives in cultivated fields of sugar cane.

収録刊行物

  • 日本生態学会誌

    日本生態学会誌 27 (4), 263-267, 1977

    一般社団法人 日本生態学会

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