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Complexity of river ciliate communities at a national park highlights the need for microbial conservation

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dc.contributor.authorQuintela Alonso, Pablo
dc.contributor.authorPérez Uz, Blanca
dc.contributor.authorSánchez Jiménez, Abel
dc.contributor.authorMurciano, Antonio
dc.contributor.authorCenteno, Juan D.
dc.contributor.authorMontero, Esperanza
dc.contributor.authorMuñoz, Benito
dc.contributor.authorOlmedo, Cristina
dc.contributor.authorRefoyo Román, Pablo Alberto
dc.contributor.authorVelasco González, Ismael
dc.contributor.authorMartín Cereceda, Mercedes
dc.contributor.authorGarcía Rodríguez, Manuel
dc.date.accessioned2024-05-20T11:18:13Z
dc.date.available2024-05-20T11:18:13Z
dc.date.issued2018-04
dc.description.abstract1. Microorganisms play pivotal roles in aquatic ecosystems. Free‐living protists are the main components of the eukaryotic microbial communities at the base of freshwater ecosystems. Ciliate grazing channels a large proportion of organic matter into multicellular organisms. Surprisingly, ciliates and other microorganisms are neglected in global conservation schemes. 2. Interstitial ciliates were sampled in three sites of varying human pressure on the River Manzanares (La Pedriza National Park, Spain). Abundances of trophic groups and species were adjusted to a generalized linear model (GLM Poisson regression). 3. Ciliate communities were rich in species (74 morphotypes) and although traditional microscopy retrieved a high number of species that appeared only once or in low numbers, rarefaction analyses estimated much larger species richness. These results illustrate that rarefaction assays are a useful first step for exploring the extent of the ciliate cryptic diversity in freshwater ecosystems. 4. Benthic ciliate communities changed significantly, both spatially and at a short temporal scale. The fluctuating nature of the community was manifested by the presence of many ephemeral species at the same river site, revealing a complex and transient community structure. No significant short‐term changes were observed in the physical–chemical properties. Therefore, even slight differences in the abiotic variables may cause rapid shifts of ciliate species. 5. Overall, human pressure had an effect on the interstitial (or benthic) ciliates that resulted in a reduction of species richness and their abundance.en
dc.description.versionversión publicada
dc.identifier.doihttps://doi.org/10.1002/aqc.2852
dc.identifier.issn1052-7613
dc.identifier.urihttps://hdl.handle.net/20.500.14468/11596
dc.journal.issue2
dc.journal.titleAquatic Conservation: Marine and Freshwater Ecosystems
dc.journal.volume28
dc.language.isoen
dc.publisherJohn Wiley and Sons
dc.relation.centerFacultad de Ciencias
dc.relation.departmentCiencias Analíticas
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject.keywordsbenthos
dc.subject.keywordsbiodiversity
dc.subject.keywordsciliates
dc.subject.keywordsgeneralized linear models
dc.subject.keywordshuman pressure
dc.subject.keywordsmicrobial habitats
dc.subject.keywordsprotected areas
dc.subject.keywordsprotists
dc.subject.keywordsriver
dc.titleComplexity of river ciliate communities at a national park highlights the need for microbial conservationes
dc.typejournal articleen
dc.typeartículoes
dspace.entity.typePublication
relation.isAuthorOfPublication74c7cfef-8a26-4f75-957a-68b4ed8e5496
relation.isAuthorOfPublication.latestForDiscovery74c7cfef-8a26-4f75-957a-68b4ed8e5496
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