Please use this identifier to cite or link to this item: https://openscholar.ump.ac.za/handle/20.500.12714/308
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dc.contributor.authorO'Brien, Gordon Craig.en_US
dc.date.accessioned2021-03-09T08:13:56Z-
dc.date.available2021-03-09T08:13:56Z-
dc.date.issued2020-
dc.identifier.urihttps://openscholar.ump.ac.za/handle/20.500.12714/308-
dc.descriptionPlease note that only UMP researchers are shown in the metadata. To access the co-authors, please view the full text.en_US
dc.description.abstractUnderstanding the biotope requirements of the various aquatic biota is crucial for effective biomonitoring. Yet, the biotope preferences of macroinvertebrates in Afrotropical rivers have been poorly studied. In this study, we investigated the influence of human disturbance and flow-driven biotope changes on the β-diversity and biotope preferences of macroinvertebrates in the Mara River, Kenya. Macroinvertebrates were sampled from various biotopes at seven reference and nine impaired sites in wet and dry seasons. β-Diversity was determined (i) for each biotope and (ii) at the site scale, combining all biotopes sampled, and macroinvertebrate biotope preferences were assessed among biotopes between reference and impaired sites. Minor β-diversity differences were observed between reference and impaired sites based on relative abundance data, but differences were greater when the presence–absence data were used. There were no statistically significant changes in macroinvertebrate biotope preference due to human disturbance, but fidelity to preferred biotopes increased at impaired sites. In fast-flowing waters, Simuliidae, Baetidae, Tricorythidae, and Hydropsychidae dominated stable rocky substrates and were the most sensitive to flow alteration. This study adds valuable information on the effects of biotope reduction/loss and flow alteration on the diversity and biotope preferences of macroinvertebrates in Afrotropical rivers, and contributes to improvement of relevant bioassessment protocols and biodiversity conservation efforts.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofHydrobiologiaen_US
dc.subjectBiotope preferences.en_US
dc.subjectBioindicators.en_US
dc.subjectFlow alteration.en_US
dc.subjectMacroinvertebrates.en_US
dc.subjectRheophilic tax.en_US
dc.titleMacroinvertebrate taxa display increased fidelity to preferred biotopes among disturbed sites in a hydrologically variable tropical river.en_US
dc.typejournal articleen_US
dc.identifier.doi10.1007/s10750-020-04437-1-
dc.contributor.affiliationSchool of Biology and Environmental Sciencesen_US
dc.relation.issn1573-5117en_US
dc.description.volume2020en_US
dc.description.issue848en_US
dc.description.startpage321en_US
dc.description.endpage343en_US
item.openairetypejournal article-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.fulltextWith Fulltext-
item.cerifentitytypePublications-
item.languageiso639-1en-
crisitem.author.deptSchool of Biology and Environmental Sciences-
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