دورية أكاديمية
Predicting Macroinvertebrate Responses to Water Abstraction in Alpine Streams
| العنوان: | Predicting Macroinvertebrate Responses to Water Abstraction in Alpine Streams |
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| المؤلفون: | Gabriele Consoli, Fabio Lepori, Christopher T. Robinson, Andreas Bruder |
| المصدر: | Water, Vol 13, Iss 15, p 2121 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Hydraulic engineering LCC:Water supply for domestic and industrial purposes |
| مصطلحات موضوعية: | hydropower, physical habitat models, preference models, invertebrate traits, functional feeding guilds, Hydraulic engineering, TC1-978, Water supply for domestic and industrial purposes, TD201-500 |
| الوصف: | Exploitation of hydropower potential in alpine areas undermines the ecological integrity of rivers. Damming and water abstraction substantially alter the physical habitat template of rivers, with strong repercussions on aquatic communities and their resources. Tools are needed to predict and manage the consequences of these alterations on the structure and functioning of macroinvertebrate communities and resource availability in alpine streams. We developed habitat preference models for taxa, functional feeding guilds, and organic resources to quantify the effects of discharge alteration on macroinvertebrate communities in two alpine streams. Our physical habitat model related an indirect measure of bottom hydraulic forces (FST hemispheres) to the distribution of macroinvertebrate taxa and their resources. We observed that flow-dependent habitat availability for macroinvertebrate communities generally decreased with increasing water abstraction. We were able to relate these changes to near-bed hydraulic conditions. Our results suggest, however, the existence of upper discharge thresholds delimiting optimal habitat conditions for taxa. In contrast, we found weak effects of near-bed hydraulic conditions on resource distribution. Overall, our findings contribute towards predicting the impacts of water abstraction on macroinvertebrate communities in small alpine streams and the benefits of baseflow restoration. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2073-4441 |
| Relation: | https://www.mdpi.com/2073-4441/13/15/2121; https://doaj.org/toc/2073-4441 |
| DOI: | 10.3390/w13152121 |
| URL الوصول: | https://doaj.org/article/9698ecfc32cf4a0fbc63761650c1e851 |
| رقم الأكسشن: | edsdoj.9698ecfc32cf4a0fbc63761650c1e851 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20734441 |
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| DOI: | 10.3390/w13152121 |