Studies on the Geographic Variation of Wing Shape in Papilio bianor by Principal Component Analysis

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  • IZUMI Kenji
    Laboratory of Plant Breeding, Tokyo University of Agriculture
  • KANO Kazumi
    Laboratory of Plant Breeding, Tokyo University of Agriculture
  • SASAKI Kenji
    Laboratory of Plant Breeding, Tokyo University of Agriculture

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Other Title
  • カラスアゲハの翅形の地理的変異 : 主成分分析による検討
  • カラスアゲハ ノ シケイ ノ チリテキ ヘンイ シュセイブン ブンセキ ニ ヨ

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Abstract

Geographic variations of wing shape in Papilio bianor were studied by principal component analysis. The data were 3 lengths in forewing and 6 lengths in hindwing obtained from 137 specimens collected from 13 areas of Japan and neighboring countries. Four principal components were extracted accounting for 93.93% of the total variance. From the result of the present analysis, the four principal components were assumed to be the following indices: the size, the slenderness of the forewing, that of the hindwing, and the width of the hindwing. The results suggested that the geographical variation of Papilio bianor might be divided into the following 2 groups: 1. Chang-hai (China), Seoul, Jeju Do Is. (Korea), Honshu, Nakano Is., Yonaguni Is. (Japan), and Taiwan; 2. Amami, Okinawa, Ishigaki, Iriomote, Hachijo (Japan), and Hungtou (Taiwan) islands. The former group has a slender hindwing for a long F (length from hindwing base to end of vein 4) and the latter one has a thickset fore and hindwing for a short C (length from forewing apex to end of vein lb) and F.

Journal

  • Lepidoptera Science

    Lepidoptera Science 34 (4), 155-162, 1984

    THE LEPIDOPTEROLOGICAL SOCIETY OF JAPAN

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