Testes size and breeding systems in Japanese annrans with special reference to large testes in the treefrog, Rhacophorus arboreus (Amphibia: Rhacophoridae)

Tamotsu Kusano, Mitsuhiko Toda, Kinji Fukuyama

研究成果: Article査読

56 被引用数 (Scopus)

抄録

Testes size was compared among 19 species of Japanese anurans in relation to their breeding systems. Although the mean body mass of the species examined varied markedly between 1.8 and 116 g, the mean proportion of testes mass to body mass was fairly constant at 0.2 to 0.4% across all species except the rhacophorid species. Foam-nest building rhacophorids had relatively large testes constituting more than 1% of their body mass. Among them, Rhacophorus arboreus had the largest, exceeding 5% of the body mass. Multi-male breeding, where a female is grasped by two or more males during spawning, occurs frequently in these rhacophorids, especially in R. arboreus. This close association between large testes size and multi-male breeding strongly suggests that sperm competition is an important factor affecting the evolution of relative testes size in Japanese anurans.

本文言語English
ページ(範囲)27-31
ページ数5
ジャーナルBehavioral Ecology and Sociobiology
29
1
DOI
出版ステータスPublished - 1991 8月

ASJC Scopus subject areas

  • 生態、進化、行動および分類学
  • 動物科学および動物学

フィンガープリント

「Testes size and breeding systems in Japanese annrans with special reference to large testes in the treefrog, Rhacophorus arboreus (Amphibia: Rhacophoridae)」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル