• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Limnology >Colonization of leaf patches at topographically different locations by insect shredders in a small mountain stream
【24h】

Colonization of leaf patches at topographically different locations by insect shredders in a small mountain stream

机译：在一条小山ders中，昆虫碎纸机在地形不同的位置定殖叶斑

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

We examined physical constraints on the colonization of leaf patches by shredder individuals by comparing the colonizations of artificially standardized leaf patches placed at different locations within a stream reach (i.e., riffles, middles and edges of pools). Stonefly taxa (Nemoura, Protonemura) colonized riffle patches 2–10 times more often than pool (middle, edge) patches, whereas caddisfly taxa (two species of Lepidostoma, Nothopsyche) almost exclusively colonized pool patches. Colonization also differed between the middle and edge patches in pools for most taxa; it was 2–5 times greater in edge patches for Nemoura and in middle patches for Lepidostoma. The abilities of species to cope with low oxygen circulation and high shear stress appear to determine differences in colonization between riffle and pool patches, whereas species-specific dispersion behavior (e.g., return time from drift) may differentiate colonization between middle and edge patches in pools. Our results suggest that changes in leaf distribution within a reach can affect the suitability of stream reaches in terms of food acquisition for shredder individuals.
机译：我们通过比较放置在河段内不同位置（即水池的浅滩，中部和边缘）的人工标准化叶斑的定殖，检查了切碎机个体对叶斑定植的物理限制。石蝇类群（Nemoura，Protonemura）定居的浅滩斑块比池（中，边缘）斑块定殖的频率高2-10倍，而鳞翅目分类单元（鳞翅目，鳞翅目的两种）几乎只定居于池斑。对于大多数类群，池中和边缘斑块之间的定殖也有所不同。 Nemoura的边缘斑块和鳞状上皮瘤的中间斑块是后者的2-5倍。物种应对低氧循环和高剪切应力的能力似乎决定了浅滩和水池斑块之间定居的差异，而特定物种的分散行为（例如，漂移的返回时间）可能区分水池中间和边缘斑块之间的定居。我们的结果表明，在触角范围内，叶片分布的变化会影响到触角触角在切碎个体获得食物方面的适用性。

著录项

  • 来源
    《Limnology》 |2009年第2期|143-147|共5页
  • 作者

    Sohei Kobayashi; Takashi Kagaya;

  • 作者单位

    Laboratory of Forest Zoology Graduate School of Agricultural and Life Sciences University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan;

    Laboratory of Forest Zoology Graduate School of Agricultural and Life Sciences University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Stream; Flow conditions; Colonization; Leaf patches; Shredders;

    机译：流;流动条件;殖民化;叶补丁;切碎机;

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