publication . Article . 2012

Large- and small-size advantages in sneaking behaviour in the dusky frillgoby Bathygobius fuscus

Takegaki, Takeshi; Kaneko, Takashi; Matsumoto, Yukio;
Open Access English
  • Published: 01 Apr 2012 Journal: Naturwissenschaften, volume 99, issue 4, pages 285-289 (issn: 0028-1042, Copyright policy)
  • Publisher: Springer Verlag
Sneaking tactic, a male alternative reproductive tactic involving sperm competition, is generally adopted by small individuals because of its inconspicuousness. However, large size has an advantage when competition occurs between sneakers for fertilization of eggs. Here, we suggest that both large- and small-size advantages of sneaker males are present within the same species. Large sneaker males of the dusky frillgoby Bathygobius fuscus showed a high success rate in intruding into spawning nests because of their advantage in competition among sneaker males in keeping a suitable position to sneak, whereas small sneakers had few chances to sneak. However, small s...
free text keywords: Alternative reproductive tactics, Size advantage, Sperm competition
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Article . 2012
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