...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine biology research >Mate choice and sperm limitation in the spotted spiny lobster, Panulirus guttatus
【24h】

Mate choice and sperm limitation in the spotted spiny lobster, Panulirus guttatus

机译：斑棘龙虾Panulirus guttatus的交配选择和精子限制

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

Mate choice by females is influenced by male size, resource provisioning and other proxies for male quality. In decapod crustaceans, mating dynamics are complicated by size-dependent sperm limitation associated with unusually low sperm:egg ratios. We explored how mate size influences mating dynamics in the spotted spiny lobster (Panulirus guttatus), a philopatric species that dwells on shallow and often isolated coral reefs in the Caribbean where choice of mates can be limited. We varied the availability and size of male and female lobsters in a series of laboratory experiments and then quantified courtship behaviour, mate choice and fertilization success of each mating. We found that large males initiated most interactions with other males and won 99% of those encounters. Large males were also more successful in garnering mates, but males of all sizes attempted to mate with all sizes of females. Females nearly always (92% of trials) chose males larger than themselves. However, if large males were unavailable, females mated with smaller males, which resulted in reduced fertilization success. Thus, for species like P. guttatus that dwell in patchy habitats with limited mate availability, the optimal strategy for mate choice is context-dependent, although not without cost to the largest females.
机译：女性对伴侣的选择受男性大小，资源供应和其他男性素质代理的影响。在十足纲甲壳类动物中，交配动力学因精子大小受限和与精子/卵子比例异常低有关而复杂化。我们研究了斑鸠多刺龙虾（Panulirus guttatus）的交配大小如何影响交配动力学，该斑盲龙虾生活在加勒比海中且通常是孤立的浅珊瑚礁上，在这里，人们的选择受到限制。我们通过一系列实验室实验来改变雄性和雌性龙虾的可用性和大小，然后量化每次交配的求爱行为，配偶选择和受精成功率。我们发现，大型雄性与其他雄性之间的互动最多，并赢得了99％的遭遇。大型雄性在交配方面也比较成功，但是各种规模的雄性都试图与各种大小的雌性交配。女性几乎总是（试验的92％）选择比自己大的男性。但是，如果没有大型雄性，雌性会与较小的雄性交配，这导致受精成功率降低。因此，对于像P. guttatus这样的物种，生活在斑驳的生境中，伴生的可利用性有限，选择伴生的最佳策略取决于具体情况，尽管这对最大的雌性而言并非没有代价。

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