期刊
ECOLOGY AND EVOLUTION
卷 11, 期 18, 页码 12285-12293出版社
WILEY
DOI: 10.1002/ece3.6595
关键词
courtship; mating behavior; oral sexual contact; sexual selection
资金
- China Scholarship Council
- Central Public-interest Scientific Institution Basal Research Fund [S2019XM20, Y2019CG03]
- National Key R&D Program of China [2017YFD0200402]
- Innovation Project of Chinese Academy of Agricultural Sciences
- Earmarked Fund for China Agriculture Research System [CARS-34-07B]
Precopulatory oral sexual behavior in the desert beetle Platyope mongolica plays a crucial role in gaining consent for mating and ultimately impacts copulation success. Interference in oral sexual contacts reduces the proportion of successful copulation, and removal of antennae leads to homosexual behavior between males. These findings underscore the importance of oral sexual courtship in sexual selection.
Precopulatory courtship plays an essential role in the insemination process and influences postcopulatory behavior between males and females. Male precopulatory oral stimulation of female genitals is rare for invertebrates. Here, we describe an intriguing oral sexual courtship in a cryptic desert beetle Platyope mongolica Faldermann. The males repeatedly contact the female's genitals using their mouths to gain consent to mate. Furthermore, the rate at which males contact the female's genitals relates to the copulation success in a series of observations. However, interference in oral sexual contacts decreased the proportion of successful copulation. Further no-choice tests found homosexual behavior between males with antenna removed. We report the precopulatory oral sexual behavior and its important role for copulation success in P. mongolica for the first time. These findings highlight the significance of oral sexual courtship in sexual selection.
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