Long‐term stability of soil bacterial and fungal community structures revealed in their abundant and rare fractions

Despite the importance of soil microorganisms for ecosystem services, long‐term surveys of their communities are largely missing. Using metabarcoding, we assessed temporal dynamics of soil bacterial and fungal communities in three land‐use types, i.e., arable land, permanent grassland, and forest, o...

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Bibliographic Details
Published in:Molecular ecology 2021-09, Vol.30 (17), p.4305-4320
Main Authors: Gschwend, Florian, Hartmann, Martin, Hug, Anna‐Sofia, Enkerli, Jürg, Gubler, Andreas, Frey, Beat, Meuli, Reto G., Widmer, Franco
Format: Article
Language:English
Subjects:
Agricultural land
Anthropogenic factors
Arable land
Bacteria
Community structure
Ecosystem services
Environmental conditions
Environmental factors
Fungi
Grasslands
Microbial activity
Microorganisms
next‐generation biomonitoring
normal operating range
Original
rare biosphere
Soil dynamics
Soil microorganisms
soil quality monitoring
Soil stability
Soils
Stability analysis
temporal dynamics
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Summary:Despite the importance of soil microorganisms for ecosystem services, long‐term surveys of their communities are largely missing. Using metabarcoding, we assessed temporal dynamics of soil bacterial and fungal communities in three land‐use types, i.e., arable land, permanent grassland, and forest, over five years. Soil microbial communities remained relatively stable and differences over time were smaller than those among sites. Temporal variability was highest in arable soils. Indications for consistent shifts in community structure over five years were only detected at one site for bacteria and at two sites for fungi, which provided further support for long‐term stability of soil microbial communities. A sliding window analysis was applied to assess the effect of OTU abundance on community structures. Partial communities with decreasing OTU abundances revealed a gradually decreasing structural similarity with entire communities. This contrasted with the steep decline of OTU abundances, as subsets of rare OTUs (
ISSN:0962-1083
1365-294X
DOI:10.1111/mec.16036