首页> 外文学位 >Effects of colour vision phenotype on insect foraging and niche preference in Cebus capucinus.
【24h】

Effects of colour vision phenotype on insect foraging and niche preference in Cebus capucinus.

机译:彩色视觉表型对Cebus capucinus昆虫觅食和生态位偏好的影响。

获取原文
获取原文并翻译 | 示例

摘要

White-faced capuchins are among the many species of neotropical primates possessing polymorphic colour vision. Several theories have been proposed to explain the evolution and persistence of multiple trichromat and dichromat phenotypes. Currently, most researchers attribute this polymorphism to a heterozygote advantage to trichromats while foraging. In my research, I tested whether dichromacy was more suited than trichromacy for any of the foraging tasks capuchins regularly encounter. I also looked for evidence of niche divergence in diet or for preferred foraging conditions in the forest among individuals with different colour vision phenotypes. I did not find strong support for the theory of niche divergence. However, I did find that dichromats were more efficient than trichromats at catching camouflaged insects. While trichromacy is likely beneficial for finding certain foods, my results demonstrate that dichromatic monkeys have an advantage for other foraging tasks, which suggests a form of frequency-dependent selection.
机译:白面卷尾猴是具有多态色觉的新热带灵长类动物的众多物种之一。已经提出了几种理论来解释多种三色和双色表型的进化和持久性。当前,大多数研究人员将此多态性归因于觅食时三色菌的杂合子优势。在我的研究中,我测试了二色性是否比三色性更适合小山羊皮经常遇到的任何觅食任务。我还寻找具有不同色觉表型的个体饮食中的生态位差异或森林中偏爱的觅食条件的证据。我没有找到对利基散度理论的有力支持。但是,我确实发现,重铬酸盐在捕获伪装昆虫方面比三色藻更有效。虽然三色性可能对寻找某些食物有益,但我的结果表明,双色猴子在其他觅食任务中具有优势,这暗示了一种频率依赖性选择。

著录项

  • 作者

    Melin, Amanda Dawn.;

  • 作者单位

    University of Calgary (Canada).;

  • 授予单位 University of Calgary (Canada).;
  • 学科 Anthropology Physical.
  • 学位 M.A.
  • 年度 2006
  • 页码 133 p.
  • 总页数 133
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 人类学;
  • 关键词

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