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首页> 外文期刊>Aquatic Sciences >The impact of channelization on macroinvertebrate bioindicators in small order Illinois streams: insights from long-term citizen science research
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The impact of channelization on macroinvertebrate bioindicators in small order Illinois streams: insights from long-term citizen science research

机译：信道化对大型伊利诺伊州小秩序生物indicators的影响：长期公民科学研究的见解

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摘要

Channelization can have far-reaching and long-term impacts on stream ecology. In this study, we demonstrate that channelization is associated with lower stream quality as measured by macroinvertebrate bioindicators when compared to unchannelized streams. Citizen scientists collected the data for this study between 1995 and 2014, performing 3021 sampling events during the months of May and June across 567 Illinois streams. We found significantly lower taxa richness, EPT taxa richness, and macroinvertebrate biotic index values in channelized sites. Our findings also show prevalent siltation in channelized sites that is likely negatively affecting macroinvertebrates, along with a possible lower availability of quality habitat. We also measured stream velocity and found that average velocity did not differ between our channelized and unchannelized sites. Our findings suggest stream velocity was not a driving factor in determining the differences in macroinvertebrate assemblages, although we cannot comment on the possible change in velocity from pre to post channelization at each site. This study allows for a large dataset that covers diverse streams across the entire state of Illinois. Our work provides example and encouragement for other researchers to take advantage of the power of citizen science, and the existing large datasets available from these projects.
机译：信道化可能对流生态学产生深远和长期影响。在这项研究中，我们证明信道化与由非通谕生物indicators测量的较低的流质量相关，与未经编织的流相比。公民科学家在1995年至2014年期间收集了本研究的数据，在5月和6月在567个伊利诺伊州溪流上进行了3021个抽样事件。我们发现有明显较低的分类群丰富，ept taxa丰富，以及通道化地点的大型脊椎动物生物指数值。我们的研究结果还显示出可能对大型椎骨门脊椎动物产生负面影响的通道化地点的普遍存在的淤泥，以及质量栖息地的可能降低可用性。我们还测量了流速度，发现我们的通道化和未经编织的位点之间的平均速度没有差异。我们的研究结果表明流速度不是确定大型脊椎门组合的差异的驱动因素，尽管我们无法评论在每个站点的PRE到PREP通信中的速度可能的变化。本研究允许大型数据集涵盖整个伊利诺伊州的各种流。我们的工作为其他研究人员提供了举例和鼓励，从而利用公民科学的权力，以及这些项目可获得的现有大型数据集。

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