...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ethology >Spermatophore and Sperm Allocation in Males of the Monandrous Butterfly Pararge aegeria: the Female's Perspective
【24h】

Spermatophore and Sperm Allocation in Males of the Monandrous Butterfly Pararge aegeria: the Female's Perspective

机译：蝴蝶的单侧节段性雄性的精子和精子分配：女性的观点

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In insects, spermatophore production represents a non-trivial cost to a male. Non-virgin males have been shown to produce small spermatophores at subsequent matings. Particularly in monandrous species, it may be an issue to receive a sufficiently large spermatophore at the first and typically only mating. Females of the monandrous Speckled wood butterfly Pararge aegeria (L.) produce fewer offspring after mating with a non-virgin male. After mating, females spend all their active time selecting oviposition sites and typically ignore other males. Here, we show that females did not discriminate between a virgin male and a recently mated male in our laboratory experiments. We demonstrate that the number of eupyrene sperm bundles relative to spermatophore mass differed with subsequent male matings. Males transferred a significantly smaller spermatophore after the first copulation, but the spermatophore mass did not decrease further with subsequent matings. However, the number of eupyrene sperm bundles decreased linearly. Therefore, there was proportionally more eupyrene sperm in the male's second spermatophore compared with the first and the later spermatophores. Such a pattern has been shown in polyandrous species. Hence, it suggests that differences in sperm allocation strategy between polyandrous and monandrous butterflies may be quantitative rather than qualitative. There was also a tendency for females that had mated with a recently mated male to have higher propensity to remate than did females that had mated with a virgin male. We discuss the results relative to the mating system in P. aegeria, including female remating opportunities in the field and male mate-locating behaviour.
机译：在昆虫中，生精团对于雄性来说是一笔不小的代价。已证明非处女的雄性在随后的交配中会产生小的精原细胞。特别是在单数物种中，可能会在第一次交配时（通常仅在交配时）接受足够大的精子细胞。与非处女雄性交配后，有斑点木蝴蝶Pararge aegeria（L.）的雌性产生较少的后代。交配后，雌性会花费所有的活动时间来选择产卵部位，并且通常会忽略其他雄性。在这里，我们显示在我们的实验室实验中，雌性并没有区分原始雄性和最近交配的雄性。我们证明，相对于精子质量，紫杉精束的数量与随后的雄性交配不同。第一次交配后，雄性转移的精子细胞明显减少，但是在随后的交配中，精子细胞的质量并没有进一步减少。但是，紫杉醇精子束的数量线性减少。因此，与第一个和后面的精原细胞相比，雄性的第二个精细胞中的紫杉烯精子成比例地增加。这种模式已经在多叶物种中显示出来。因此，这表明一头和一头蝴蝶之间精子分配策略的差异可能是定量的而不是定性的。与刚交配的雄性交配的雌性，其交配倾向也比与未交配的雄性交配的雌性具有更高的交配倾向。我们讨论了与P. aegeria交配系统有关的结果，包括田间雌性交配的机会和雄性交配的行为。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号