The effects of run-of-river hydroelectric power schemes on invertebrate community composition in temperate streams and rivers

被引:17
|
作者
Bilotta, Gary S. [1 ]
Burnside, Niall G. [1 ]
Turley, Matthew D. [1 ]
Gray, Jeremy C. [2 ]
Orr, Harriet G. [3 ]
机构
[1] Univ Brighton, Aquat Res Ctr, Sch Environm & Technol, Brighton, E Sussex, England
[2] Precima Inc, Toronto, ON, Canada
[3] Environm Agcy, Bristol, Avon, England
来源
PLOS ONE | 2017年 / 12卷 / 02期
基金
英国自然环境研究理事会;
关键词
MACROINVERTEBRATES; HYDROPOWER; DAMS; IMPACTS; PASSAGE; WORLD;
D O I
10.1371/journal.pone.0171634
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
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.
引用
收藏
页数:13
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