The effects of run-of-river hydroelectric power schemes on invertebrate community composition in temperate streams and rivers.
The effects of run-of-river hydroelectric power schemes on invertebrate community composition in temperate streams and rivers.
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DOI：
10.1371/journal.pone.0171634
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Orr HG
中科院分区：
文献类型：
--
作者：
Bilotta GS;Burnside NG;Turley MD;Gray JC;Orr HG
径流式（ROR）水力发电（HEP）计划通常被认为比大规模存储HEP计划对生态的破坏要小。然而，目前关于其生态影响的科学证据有限。本文的目的是调查ROR HEP计划对温带溪流和河流中无脊椎动物群落的影响，采用多站点的前-后，控制-影响（BACI）研究设计。该研究利用了在22个系统选择的ROR HEP计划和22个系统选择的配对对照地点收集的作为长期国家和国际监测计划的一部分的常规环境监测数据。五个广泛使用的家庭级无脊椎动物指标（丰富度，均匀度，生活，E-PSI，WHPT）进行了分析，使用线性混合效应模型。分析表明，ROR HEP的建设和运行对无脊椎动物群落的均匀度有显著影响（p<0.05）。然而，没有统计学上的显着影响，检测到其他四个指标的社区组成。这些研究结果的影响进行了讨论，在这篇文章中提出的建议，为未来的无脊椎动物群落影响研究的最佳实践研究设计。
Run-of-river (ROR) hydroelectric power (HEP) schemes are often presumed to be less ecologically damaging than large-scale storage HEP schemes. However, there is currently limited scientific evidence on their ecological impact. The aim of this article is to investigate the effects of ROR HEP schemes on communities of invertebrates in temperate streams and rivers, using a multi-site Before-After, Control-Impact (BACI) study design. The study makes use of routine environmental surveillance data collected as part of long-term national and international monitoring programmes at 22 systematically-selected ROR HEP schemes and 22 systematically-selected paired control sites. Five widely-used family-level invertebrate metrics (richness, evenness, LIFE, E-PSI, WHPT) were analysed using a linear mixed effects model. The analyses showed that there was a statistically significant effect (p<0.05) of ROR HEP construction and operation on the evenness of the invertebrate community. However, no statistically significant effects were detected on the four other metrics of community composition. The implications of these findings are discussed in this article and recommendations are made for best-practice study design for future invertebrate community impact studies.