...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ethology >Effect of the Presence of Subordinates on Dominant FemaleBehaviour and Fitness in Hierarchies of the Dwarf AngelfishCentropyge bicolor
【24h】

Effect of the Presence of Subordinates on Dominant FemaleBehaviour and Fitness in Hierarchies of the Dwarf AngelfishCentropyge bicolor

机译：下属的存在对矮人神仙鱼等级制中女性主导性行为和体能的影响

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 many hierarchical animal societies, dominant individuals controlgroup membership owing to their power to evict subordinates. In suchgroups, the presence of subordinates, and therefore group stability, iscontinually dependent on subordinates being tolerated by dominants.The dominant decision to tolerate or evict is, in turn, dependent on thecosts and benefits to dominants of subordinate presence. We investigated the effect of subordinate presence on dominants in the female dominance hierarchy of the dwarf angelfish Centropyge bicolor, using bothobservations of natural groups and experimental removals of subordinates. We found that the presence of subordinates had no effect on dominant access to resources, as measured by dominant foraging ratesand home range areas, nor on dominant fitness, as measured by growthrates and spawning frequencies. Our results suggest that the presence ofsubordinates has a neutral effect on the current fitness of dominants, sothat dominants have no great incentive to evict subordinates. We discuss the possibility that tolerance of subordinates might be further explained by considering future fitness, as dominant females in theseharemic protogynous angelfish stand to inherit the male position,whereupon subordinate females change from potential competition touseful mates.
机译：在许多等级化的动物社会中，优势人物由于有权驱逐下属而成为控制群体的成员。在这样的群体中，下属的存在以及群体的稳定性一直取决于下属被统治者所容忍。容忍或驱逐的显性决定反过来取决于下属存在者的成本和收益。我们使用对自然群体的观察和对下属的实验性移除，研究了下属存在对矮人神仙鱼Centropyge bicolor的女性优势等级中的统治者的影响。我们发现，下属的存在对优势资源的获取没有影响，而优势资源的获取是通过优势觅食率和家庭范围来衡量的，也没有影响优势适应度（通过增长率和产卵频率来衡量）。我们的结果表明，下属的存在对当前优势者的适应度具有中性影响，因此优势者没有大的动机驱逐下属。我们讨论了考虑未来适应性进一步解释下属的宽容性的可能性，因为这些习俗上有雌雄异体的神仙鱼中的优势雌性会继承男性的地位，因此，下属雌性从潜在的竞争变成了有用的伴侣。

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