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首页> 外文期刊>Limnologica >Macroinvertebrate functional feeding group structure along an impacted tropical river: The Portoviejo River (Ecuador)
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Macroinvertebrate functional feeding group structure along an impacted tropical river: The Portoviejo River (Ecuador)

机译：沿着受影响的热带河流的Macroinvertebrete功能喂养组结构：Portoviejo河（厄瓜多尔）

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摘要

Performing biological assessments of freshwater systems is crucial in most tropical rivers as the lack of in-depth knowledge about functional diversity inhibits the design of appropriate water management and restoration plans. Therefore, in this paper, we investigated the presence and evolution of the functional diversity of the macroinvertebrate community along a tropical river. More specifically, 31 locations were sampled in the Portoviejo River (Ecuador) and identified macroinvertebrates were assigned to one of the following functional feeding groups (FEGs): shredders, collector-gatherers, collector-filterers, scraper-grazers and predators. Results show that high fluctuations and relatively low similarly in functional feeding group composition occurred among closely located sites, suggesting the presence of local disturbances. Locations close to the effluent of a wastewater treatment plant show an extreme dominance of scraper-grazers, suggesting elevated nutrient input and algae growth. Further downstream, the interaction of upstream disturbances and local land use influenced the community composition. These interactions and the confirmation of the importance of land use on aquatic communities underline the fact that management should include both taxonomic and functional diversity.
机译：对于淡水系统进行生物学评估，在大多数热带河流中至关重要，因为缺乏关于功能多样性的深入知识抑制了适当的水管理和恢复计划的设计。因此，在本文中，我们调查了沿热带河流沿着热带河流的多脊椎动物群落功能多样性的存在和演变。更具体地说，在Portoviejo河（厄瓜多尔）中取样了31个位置，并将鉴定的大型椎骨门术被分配给以下功能喂养组（Fegs）之一：粉碎机，收集器 - 采集器，收集器滤光器，刮板 - 食用片和捕食者。结果表明，在密切的位置发生的功能喂养组组合物中的高波动和相对较低，表明存在局部扰动。靠近废水处理厂的流出物的位置表明了刮板 - 格拉布尔的极端优势，表明营养投入和藻类生长升高。进一步下游，上游障碍和局部土地利用的相互作用影响了社区组成。这些相互作用和确认土地利用对水生社区的重要性强调了管理层应包括分类学和功能多样性。

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