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A morphological comparison of feeding structures among amphipod species from different habitats.

机译：不同生境的两栖动物物种的摄食结构形态比较。

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摘要

North American amphipods in the families Gammaridae and Crangonyctidae are found in springs and in the subterranean. Such diverse environments are assumed to have extreme differences in food therefore the amphipods in these habitats should have differences in their structures that sense and manipulate foods. To ascertain if differences in habitat and food sources result in different morphology, thirteen species of amphipods from these two families were analyzed. The antennae, pereon, mandibles, and gnathopods were dissected from the amphipods, prepared, and viewed under the SEM. Comparisons between the surface and cave stream species and within the subterranean habitats showed that amphipods within the same species and within the same habitat had varying structures. However, maxillae I & II and the maxillipeds showed no differences in the thirteen species. Due to large variations within the habitats and species, amphipods can be categorized as generalists in terms of feeding habits and morphology.
机译：Gammaridae和Crangonyctidae家族的北美两栖动物在春季和地下发现。假定这种多样化的环境在食物上存在极大差异，因此这些栖息地中的两栖动物在其感知和操纵食物的结构上应具有差异。为了确定栖息地和食物来源的差异是否导致不同的形态，分析了这两个科的13种两足纲动物。从两栖动物中解剖触角，pereon，下颌骨和棘足类动物，准备并在SEM下观察。地表和洞穴流物种以及地下栖息地内部的比较表明，同一物种内和相同栖息地内的两栖动物具有不同的结构。但是，上颌I＆II和上颌足在这13个物种中没有差异。由于栖息地和物种的差异很大，因此，根据食性和形态，可将两栖类动物归为通才。

著录项

  • 作者

    Chu, Kerry L.;

  • 作者单位

    The American University.;

  • 授予单位 The American University.;
  • 学科 Biology Anatomy.;Biology Ecology.
  • 学位 M.S.
  • 年度 2010
  • 页码 282 p.
  • 总页数 282
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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