A "spare" compensates for the risk of destruction of the elongated penis of earwigs (Insecta: Dermaptera)

Yoshitaka Kamimura, Yoh Matsuo

研究成果: Article査読

35 被引用数 (Scopus)

抄録

Male animals in several groups have multiple intromittent organs that outnumber the corresponding female gonopore. In Dermaptera (earwigs), males of the family Anisolabididae have paired, elongated male intromittent organs (virgae), while females have a single sperm-storage organ (spermatheca). Several authors have assumed that one of the paired virgae is non-functional, because it points in the "wrong" direction. We investigated the mating success of handicapped males of Euborellia plebeja in which one of their paired virgae was removed experimentally. These handicapped males succeeded in inseminating a mate. Males with genital damage are found in the field, suggesting that the "spare" functions under natural conditions. Based on phylogenetic information on earwigs, we discuss possible evolutionary scenarios for this genital peculiarity.

本文言語English
ページ(範囲)468-471
ページ数4
ジャーナルNaturwissenschaften
88
11
DOI
出版ステータスPublished - 2001
外部発表はい

ASJC Scopus subject areas

  • 生態、進化、行動および分類学

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