• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Patterns of prey selection by the crab Cancer productus among three similar gastropod species (Nucella spp.)
【24h】

Patterns of prey selection by the crab Cancer productus among three similar gastropod species (Nucella spp.)

机译：三种类似的胃肠杆菌种类（Nucella SPP）中蟹癌癌的捕食性选择模式

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

Crabs are important predators known to influence the distribution, density, behaviour, and physical traits of their prey in marine ecosystems. However, the extent to which crabs, particularly generalists, differentiate or select among closely related prey species is less understood. Here, we examine prey preference in the red rock crab, Cancer productus Randall, 1840, between three closely related species of gastropod prey - Nucella ostrina (Gould, 1852), N. canaliculata (Duclos, 1832), and N. lamellosa (Gmelin, 1791). Crabs were presented with three individuals of each species distributed evenly in a 3 x 3 grid, and gastropods were ranked in the order that they were consumed. C. productus demonstrated a "preference" for N. lamellosa over both N. canaliculata (p = 0.019) and N. ostrina (p = 0.003), but were most likely to attack the first and then next gastropod they recognized, regardless of species, as they worked through the grid (p 0.001). Crabs also appeared to have difficulty locating the last two gastropods, which always included at least one of N. ostrina and/or N. canaliculata. Given that N. lamellosa is the largest of the three species, and that crabs appeared to contact smaller gastropods without always recognizing them as prey, we suggest that crabs are more likely to recognize and attack the larger species of Nucella tactilely. As crabs attacked adjacent gastropods, regardless of species, and never rejected the smaller species, tactile detection of larger prey is therefore a more conservative explanation for prey selection between the three similar prey in this system.
机译：螃蟹是众所周知的重要掠夺者，以影响海洋生态系统中猎物的分布，密度，行为和身体特征。然而，螃蟹，特别是通用，区分或选择密切相关的猎物物种的程度较少理解。在这里，我们在红岩蟹，癌症产量兰德尔，1840年检查左右偏好，在三个密切相关的胃肠杆菌猎物 - nucella鸵鸟（Gould，1852），N. canaliculata（Duclos，1832）和N.Lamellosa（Gmelin ，1791）。螃蟹均用3×3栅格均匀分布的每个物种的三个人呈现，并按消耗的顺序排列胃肠杆。 C. ProDICES在N. canaliculata（p = 0.019）和N.鸵鸟（P = 0.003）上显示出“偏好”，但最有可能攻击他们认识到的第一个然后下一个胃脂，而不管物种如何，当他们通过网格工作时（P <0.001）。螃蟹也似乎难以定位最后两个胃脂，这总是包括N.鸵鸟和/或N. Canaliculata中的至少一种。鉴于N.Lapellosa是三种物种中最大的，并且螃蟹似乎与较小的胃陷，而无需总是将它们视为猎物，我们建议螃蟹更有可能认识并攻击巨大的Nucella疾病的较大种类。由于螃蟹袭击了邻近的胃陷，而不管物种，从未拒绝较小的物种，则触觉对较大猎物的触觉检测是在该系统中三种类似猎物之间的猎物选择更保守的解释。

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