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dc.contributor.authorHindshaw, R. S.
dc.contributor.authorLindsay, Melody R.
dc.contributor.authorBoyd, Eric S.
dc.date.accessioned2018-01-17T18:22:44Z
dc.date.available2018-01-17T18:22:44Z
dc.date.issued2017-09
dc.identifier.citationHindshaw, R S, M R Lindsay, and Eric S Boyd. "Diversity and abundance of microbial eukaryotes in stream sediments from Svalbard." Polar Biology 40, no. 9 (September 2017): 1835-1843. DOI:https://dx.doi.org/10.1007/s00300-017-2106-3.en_US
dc.identifier.issn0722-4060
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14124
dc.description.abstractMicrobial eukaryotes are increasingly being recognised for their role in global biogeochemical cycles, yet very few studies have focussed on their distribution in high-latitude stream sediments, an important habitat which influences stream water nutrient chemistry. In this study, we present the first comparison of microbial eukaryotes from two different polar habitats by determining the abundance and taxonomic affiliation of 18S rRNA gene fragments recovered from four sediment samples in Svalbard: two from a glaciated catchment and two from an unglaciated permafrost-dominated catchment. Whilst there was no difference between the two catchments in terms of Rao\'s phylogenetic diversity (0.18±0.04, 1SD), the glaciated catchment samples had slightly higher richness (138-139) than the unglaciated catchment samples (67-106). At the phylum level, Ciliophora had the highest relative abundance in the samples from the glaciated catchment (32-63%), but only comprised 0-17% of the unglaciated catchment samples. Bacillariophyta was the most abundant phylum in one of the samples from the unglaciated catchment (43%) but phototrophic microbial eukaryotes only formed a minor component of the glaciated catchment samples (<2%), suggesting that in these environments the microbial eukaryotes are predominantly heterotrophic (chemotrophic). This is in contrast to previously published data from Robertson Glacier, Canada where the relative abundance of chlorophyta (phototrophs) in three samples was 48-57%. The contrast may be due to differences in glacial hydrology and/or geology, highlighting the variation in microbial eukaryote communities between nominally similar environments.en_US
dc.rightsCC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleDiversity and abundance of microbial eukaryotes in stream sediments from Svalbarden_US
mus.citation.extentfirstpage1835en_US
mus.citation.extentlastpage1843en_US
mus.citation.issue9en_US
mus.citation.journaltitlePolar Biologyen_US
mus.citation.volume40en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1007/s00300-017-2106-3en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentMicrobiology & Immunology.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage3en_US


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CC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.
Except where otherwise noted, this item's license is described as CC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.

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