Mate change reduces the reproductive rate of males in a monogamous pipefish corythoichthys haematopterus: The benefit of long-term pair bonding

Atsushi Sogabe, Koji Matsumoto, Yasunobu Yanagisawa

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Monogamy has evolved independently in many taxa, and often involves biparental care of the young and/or low defendability of multiple mates. In many teleost fishes, however, strict monogamy is practised without such limitations. In this study, we examined why males of the pipefish Corythoichthys haematopterus (family: Syngnathidae) reproduce monogamously without changing to another mate. For this we examined the time cost associated with mate change by experimentally removing females from mating pairs and compelling the males to change mates. Mate-changing males needed longer interspawning intervals, an average of 8.5 d, than their monogamous counterparts, which was primarily because of the time needed for the new female to prepare mature eggs. As a result, we assume that mate change entails considerable reproductive costs associated with a decrease in reproductive rate. Monogamy and long-term pair bonding in C. haematopterus are likely maintained because of high reproductive rates by repeatedly reproducing with the same mate over a lifetime.

本文言語English
ページ(範囲)764-771
ページ数8
ジャーナルEthology
113
8
DOI
出版ステータスPublished - 2007 8 1

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

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