Journal
ISME JOURNAL
Volume 13, Issue 8, Pages 2082-2093Publisher
SPRINGERNATURE
DOI: 10.1038/s41396-019-0420-1
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Funding
- NOAA Climate and Global Change Postdoctoral Fellowship Program
- NSF Macrosystems Biology [1638577, 1318164]
- Boston University Bioinformatics BRITE Research Experiences for Undergraduates Program
- Direct For Biological Sciences
- Division Of Environmental Biology [1638577] Funding Source: National Science Foundation
- Direct For Biological Sciences
- Emerging Frontiers [1318164] Funding Source: National Science Foundation
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Large-scale environmental sequencing efforts have transformed our understanding of the spatial controls over soil microbial community composition and turnover. Yet, our knowledge of temporal controls is comparatively limited. This is a major uncertainty in microbial ecology, as there is increasing evidence that microbial community composition is important for predicting microbial community function in the future. Here, we use continental- and global-scale soil fungal community surveys, focused within northern temperate latitudes, to estimate the relative contribution of time and space to soil fungal community turnover. We detected large intra-annual temporal differences in soil fungal community similarity, where fungal communities differed most among seasons, equivalent to the community turnover observed over thousands of kilometers in space. inter-annual community turnover was comparatively smaller than intra-annual turnover. Certain environmental covariates, particularly climate covariates, explained some spatial-temporal effects, though it is unlikely the same mechanisms drive spatial vs. temporal turnover. However, these commonly measured environmental covariates could not fully explain relationships between space, time and community composition. These baseline estimates of fungal community turnover in time provide a starting point to estimate the potential duration of legacies in microbial community composition and function.
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