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dc.contributor.advisorChairperson, Graduate Committee: Lindsey Albertsonen
dc.contributor.authorReinert, James Holdenen
dc.contributor.otherLindsey K. Albertson and James R. Junker were co-authors of the article, 'Biotic and physical responses to biomimicry structures in a Rocky Mountain incised stream' submitted to the journal 'River research and applications' which is contained within this thesis.en
dc.date.accessioned2020-06-18T15:52:05Z
dc.date.available2020-06-18T15:52:05Z
dc.date.issued2020en
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15822en
dc.description.abstractAn increase in stream degradation resulting from land use change has motivated an increase in restoration efforts across the globe. Post-restoration monitoring is still lacking, however, and does not always incorporate biotic responses to changes in the physical template. Beaver mimicry structures (BMS) are becoming a popular tool to restore degraded streams throughout the American west, but relatively little is known about how these installations influence both biotic and abiotic factors, with consequences for ecosystem functioning. We monitored basal resource deposition and macroinvertebrate density, biomass, and production to quantify functional responses to BMS installations. We compared conditions at BMS sites to naturally occurring beaver dam and reference riffle sites in a low-gradient stream in southwest Montana. Thermal ranges were contracted, and daily maximum temperatures increased at BMS sites compared to reference riffle sites. Deposition of fine sediment and basal resources was similar at beaver and BMS sites, and both were higher than reference riffles. Densities and production of macroinvertebrates were higher at the BMS sites compared to reference sites and similar to beaver sites due to changes in physical habitat and basal resource availability, reflected by increases in production of shredders (beaver) and collector-gatherers (BMS). In this study site, changes to the physical template using BMS appear to have strong impacts on biotic functional responses, creating habitats similar to target conditions of natural beaver dams. Future research should consider the extent of degradation and temporal limitations of monitoring schemes to incorporate BMS into standard restoration practice. Functional response metrics provide an important and mechanistic approach to determine the efficacy of process-based stream restoration practices.en
dc.language.isoenen
dc.publisherMontana State University - Bozeman, College of Letters & Scienceen
dc.subject.lcshStream ecologyen
dc.subject.lcshRestoration ecologyen
dc.subject.lcshBeaversen
dc.subject.lcshFreshwater invertebratesen
dc.subject.lcshSedimentation and depositionen
dc.subject.lcshTemperatureen
dc.titleBiotic and physical responses to biomimicry structures in a Rocky Mountain incised streamen
dc.typeThesisen
dc.rights.holderCopyright 2020 by James Holden Reinerten
thesis.degree.committeemembersMembers, Graduate Committee: Wyatt F. Cross; Thomas E. McMahon.en
thesis.degree.departmentEcology.en
thesis.degree.genreThesisen
thesis.degree.nameMSen
thesis.format.extentfirstpage1en
thesis.format.extentlastpage53en
mus.data.thumbpage37en


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