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Title: Resistance, Resilience, and Recovery of Dryland Soil Bacterial Communities Across Multiple Disturbances

Abstract

Dryland ecosystems are sensitive to perturbations and generally slow to recover post disturbance. The microorganisms residing in dryland soils are especially important as they contribute to soil structure and nutrient cycling. Disturbance can have particularly strong effects on dryland soil structure and function, yet the natural resistance and recovery of the microbial components of dryland soils has not been well documented. In this study, the recovery of surface soil bacterial communities from multiple physical and environmental disturbances is assessed. Samples were collected from three field sites in the vicinity of Moab, UT, United States, 6 to 7 years after physical and climate disturbance manipulations had been terminated, allowing for the assessment of community recovery. Additionally, samples were collected in a transect that included three habitat patches: the canopy zone soils under the dominant shrubs, the interspace soils that are colonized by biological soil crusts, and edge soils at the plot borders. Field site and habitat patch were significant factors structuring the bacterial communities, illustrating that sites and habitats harbored unique soil microbiomes. Across the different sites and disturbance treatments, there was evidence of significant bacterial community recovery, as bacterial biomass and diversity were not significantly different than control plots. Theremore » was, however, a small number of 16S rRNA gene amplicon sequence variants that distinguished particular treatments, suggesting that legacy effects of the disturbances still remained. Taken together, these data suggest that dryland bacterial communities may possess a previously unappreciated potential to recover within years of the original disturbance.« less

Authors:
 [1];  [2];  [2];  [3]; ORCiD logo [3];  [2]
  1. Connecticut Agricultural Experiment Station, New Haven, CT (United States). Dept. of Environmental Sciences
  2. US Geological Survey, Moab, UT (United States). Southwest Biological Science Center
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Bioscience Division
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
OSTI Identifier:
1815793
Alternate Identifier(s):
OSTI ID: 1835785
Report Number(s):
LA-UR-20-30348
Journal ID: ISSN 1664-302X
Grant/Contract Number:  
SC0008168; 89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Frontiers in Microbiology
Additional Journal Information:
Journal Volume: 12; Journal ID: ISSN 1664-302X
Publisher:
Frontiers Research Foundation
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; dryland; biological soil crust; resilience; recovery; bacteria; arid soils

Citation Formats

Steven, Blaire, Phillips, Michala L., Belnap, Jayne, Gallegos-Graves, La Verne, Kuske, Cheryl R., and Reed, Sasha C. Resistance, Resilience, and Recovery of Dryland Soil Bacterial Communities Across Multiple Disturbances. United States: N. p., 2021. Web. doi:10.3389/fmicb.2021.648455.
Steven, Blaire, Phillips, Michala L., Belnap, Jayne, Gallegos-Graves, La Verne, Kuske, Cheryl R., & Reed, Sasha C. Resistance, Resilience, and Recovery of Dryland Soil Bacterial Communities Across Multiple Disturbances. United States. https://doi.org/10.3389/fmicb.2021.648455
Steven, Blaire, Phillips, Michala L., Belnap, Jayne, Gallegos-Graves, La Verne, Kuske, Cheryl R., and Reed, Sasha C. Tue . "Resistance, Resilience, and Recovery of Dryland Soil Bacterial Communities Across Multiple Disturbances". United States. https://doi.org/10.3389/fmicb.2021.648455. https://www.osti.gov/servlets/purl/1815793.
@article{osti_1815793,
title = {Resistance, Resilience, and Recovery of Dryland Soil Bacterial Communities Across Multiple Disturbances},
author = {Steven, Blaire and Phillips, Michala L. and Belnap, Jayne and Gallegos-Graves, La Verne and Kuske, Cheryl R. and Reed, Sasha C.},
abstractNote = {Dryland ecosystems are sensitive to perturbations and generally slow to recover post disturbance. The microorganisms residing in dryland soils are especially important as they contribute to soil structure and nutrient cycling. Disturbance can have particularly strong effects on dryland soil structure and function, yet the natural resistance and recovery of the microbial components of dryland soils has not been well documented. In this study, the recovery of surface soil bacterial communities from multiple physical and environmental disturbances is assessed. Samples were collected from three field sites in the vicinity of Moab, UT, United States, 6 to 7 years after physical and climate disturbance manipulations had been terminated, allowing for the assessment of community recovery. Additionally, samples were collected in a transect that included three habitat patches: the canopy zone soils under the dominant shrubs, the interspace soils that are colonized by biological soil crusts, and edge soils at the plot borders. Field site and habitat patch were significant factors structuring the bacterial communities, illustrating that sites and habitats harbored unique soil microbiomes. Across the different sites and disturbance treatments, there was evidence of significant bacterial community recovery, as bacterial biomass and diversity were not significantly different than control plots. There was, however, a small number of 16S rRNA gene amplicon sequence variants that distinguished particular treatments, suggesting that legacy effects of the disturbances still remained. Taken together, these data suggest that dryland bacterial communities may possess a previously unappreciated potential to recover within years of the original disturbance.},
doi = {10.3389/fmicb.2021.648455},
journal = {Frontiers in Microbiology},
number = ,
volume = 12,
place = {United States},
year = {Tue Apr 20 00:00:00 EDT 2021},
month = {Tue Apr 20 00:00:00 EDT 2021}
}

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