Predicting Macroinvertebrate Responses to Water Abstraction in Alpine Streams
dc.contributor.author
Consoli, Gabriele
dc.contributor.author
Lepori, Fabio
dc.contributor.author
Robinson, Christopher T.
dc.contributor.author
Bruder, Andreas
dc.date.accessioned
2021-09-24T08:49:13Z
dc.date.available
2021-08-16T03:18:25Z
dc.date.available
2021-09-24T08:49:13Z
dc.date.issued
2021
dc.identifier.issn
2073-4441
dc.identifier.other
10.3390/w13152121
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/500995
dc.identifier.doi
10.3929/ethz-b-000500995
dc.description.abstract
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.
en_US
dc.format
application/pdf
en_US
dc.publisher
MDPI
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
hydropower
en_US
dc.subject
physical habitat models
en_US
dc.subject
preference models
en_US
dc.subject
invertebrate traits
en_US
dc.subject
functional feeding guilds
en_US
dc.title
Predicting Macroinvertebrate Responses to Water Abstraction in Alpine Streams
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2021-08-01
ethz.journal.title
Water
ethz.journal.volume
13
en_US
ethz.journal.issue
15
en_US
ethz.pages.start
2121
en_US
ethz.size
22 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Basel
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2021-08-16T03:18:34Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-09-24T08:49:19Z
ethz.rosetta.lastUpdated
2022-03-29T13:31:34Z
ethz.rosetta.versionExported
true
ethz.COinS
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Journal Article [131699]