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首页> 外文会议>International Association of Theoretical and Applied Limnology >Impact of incision on invertebrate assemblages of the hyporheic zone: assessment from taxonomic and functional classifications
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Impact of incision on invertebrate assemblages of the hyporheic zone: assessment from taxonomic and functional classifications

机译：切口切口对低于多发区的无脊椎动物组合的影响：评估分类学和功能分类

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The hyporheic zone, the dynamic interface between surface and subsurface waters, is of major significance for stream functioning (BOULTON et al. 1998), but many anthropogenic activities are likely to alter exchanges through this interface (BRUNKE & GONSER 1997, HANCOCK 2002). For instance, dams and regulations have induced incision of bed-sediments in many European rivers (BRAVARD et al. 1997) that causes changes in sediment grain size and distribution (e.g., surface pavement and reduction of fine sediment contents) and the hydraulic connection between surface and subsurface compartments (e.g., increase in surface water infiltration). These physical changes may have consequences on the composition (taxonomic and functional) and vertical distribution of invertebrate assemblages inhabiting this zone. Few attempts have been made to use functional classifications to assess the integrity of the hyporheic faunal assemblages (CLARET et al. 1999, BOULTON 2000), although species traits have been widely used as monitoring and management tools in surface ecosystems (e.g., DOLEDEC et al. 1999, 2006, USSEGLIO-POLATERA et al. 2000, STATZNER et al. 2001). In this study, we focused on the vertical distributions of invertebrates in 2 riffles, a reference and an eroded, considering abundance, richness, and functional traits (groundwater habitat affinity and trophic groups; CLARET et al. 1999) to assess potential impact of incision on surface-subsurface interactions.
机译：过度的区域，表面和地下水之间的动态接口，对流功能具有重要意义（Boulton等，1998），但许多人为活动可能会通过该界面改变交流（Brunke＆Gonerer 1997，Hancock 2002）。例如，大坝和法规在许多欧洲河流中诱导了床沉积物的切口（Braward等，1997），导致沉积物粒度和分布的变化（例如，表面路面和细沉积物的降低）和液压连接表面和地下隔室（例如，表面水浸润的增加）。这些物理变化可能对组合物（分类和功能）以及无脊椎动物组合的垂直分布居住在该区域的后果。几次尝试使用功能分类来评估低于粪便群组合的完整性（Claret等，1999，Boulton 2000），尽管物种特征被广泛用作表面生态系统的监测和管理工具（例如，Doledec等人。1999年，2006年，usseglio-polotera等。2000，statzner等人。2001）。在这项研究中，我们专注于2升中的无脊椎动物的垂直分布，参考和侵蚀，考虑丰富，丰富和功能性状（地下水栖息地和营养团; Claret等，1999）来评估切口的潜在影响表面地下相互作用。

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