Context dependent fungal and bacterial soil community shifts in response to recent wildfires in the Southern Appalachian Mountains

Brown, Shawn P.; Veach, Allison M.; Horton, Jonathan L.; Ford, Emerald; Jumpponen, Ari; Baird, Richard

doi:10.1016/j.foreco.2019.117520

Title: Context dependent fungal and bacterial soil community shifts in response to recent wildfires in the Southern Appalachian Mountains

Full Record
Other Related Research

Abstract

Decades of fire suppression coupled with changing climatic conditions have increased the frequency and intensity of wildfires. Here, the Southern Appalachia region of the United States is predicted to be particularly susceptible to climatic changes, with predicted increases in fire severity and occurrence. Following the record breaking fire season in 2016 in Southern Appalachia, we examined wildfire impacts on soil chemistry and below ground communities (fungi and bacteria – Illumina MiSeq) within two substrates (duff and soil) at two adjacent locations with similar plant communities (Great Smoky Mountains National Park – ‘Chimney Top 2’ Fire (GRSM) and Nantahala National Forest – ‘Cliffside’ Fire (NNF)) from replicate plots representing a range of fire severities (unburned, low severity, moderate severity, severe). Differing fire severities changed community composition, and fire severity played a stronger role in structuring bacterial communities than in structuring fungal communities. Further, fire impacts on soil communities and functional guilds responses were location- and substrate-specific with NNF responding more strongly to fire than GRSM. Additionally, using a novel analysis tool (Axis Weighted Ordination Distance – AWOrD), domain and location specific responses to wildfire severity are demonstrated. Taken together, our results suggest context-dependency in microbial responses to fire that must bemore »« less

Authors:

Brown, Shawn P. ^[1];

^[2]; Horton, Jonathan L. ^[3]; Ford, Emerald ^[4]; Jumpponen, Ari ^[5]; Baird, Richard ^[4]

Univ. of Memphis, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of North Carolina, Asheville, NC (United States)
Mississippi State Univ., Starkville, MS (United States)
Kansas State Univ., Manhattan, KS (United States)

Publication Date:: Thu Aug 22 00:00:00 EDT 2019

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1606643

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Forest Ecology and Management

Additional Journal Information:: Journal Volume: 451; Journal Issue: C; Journal ID: ISSN 0378-1127

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; Phoenicoid fungi; forests; burn severity; composite burn index; Great Smoky Mountain National Park; Nantahala National Forest

Citation Formats


                    Brown, Shawn P., Veach, Allison M., Horton, Jonathan L., Ford, Emerald, Jumpponen, Ari, and Baird, Richard. Context dependent fungal and bacterial soil community shifts in response to recent wildfires in the Southern Appalachian Mountains.  United States: N. p., 2019. 
Web.  doi:10.1016/j.foreco.2019.117520.

Copy to clipboard


                    Brown, Shawn P., Veach, Allison M., Horton, Jonathan L., Ford, Emerald, Jumpponen, Ari, & Baird, Richard. Context dependent fungal and bacterial soil community shifts in response to recent wildfires in the Southern Appalachian Mountains.  United States.  https://doi.org/10.1016/j.foreco.2019.117520

Copy to clipboard


                    Brown, Shawn P., Veach, Allison M., Horton, Jonathan L., Ford, Emerald, Jumpponen, Ari, and Baird, Richard. Thu .  
"Context dependent fungal and bacterial soil community shifts in response to recent wildfires in the Southern Appalachian Mountains".  United States.  https://doi.org/10.1016/j.foreco.2019.117520.  https://www.osti.gov/servlets/purl/1606643.

Copy to clipboard


                    
@article{osti_1606643,

  title        = {Context dependent fungal and bacterial soil community shifts in response to recent wildfires in the Southern Appalachian Mountains},

  author       = {Brown, Shawn P. and Veach, Allison M. and Horton, Jonathan L. and Ford, Emerald and Jumpponen, Ari and Baird, Richard},

  abstractNote = {Decades of fire suppression coupled with changing climatic conditions have increased the frequency and intensity of wildfires. Here, the Southern Appalachia region of the United States is predicted to be particularly susceptible to climatic changes, with predicted increases in fire severity and occurrence. Following the record breaking fire season in 2016 in Southern Appalachia, we examined wildfire impacts on soil chemistry and below ground communities (fungi and bacteria – Illumina MiSeq) within two substrates (duff and soil) at two adjacent locations with similar plant communities (Great Smoky Mountains National Park – ‘Chimney Top 2’ Fire (GRSM) and Nantahala National Forest – ‘Cliffside’ Fire (NNF)) from replicate plots representing a range of fire severities (unburned, low severity, moderate severity, severe). Differing fire severities changed community composition, and fire severity played a stronger role in structuring bacterial communities than in structuring fungal communities. Further, fire impacts on soil communities and functional guilds responses were location- and substrate-specific with NNF responding more strongly to fire than GRSM. Additionally, using a novel analysis tool (Axis Weighted Ordination Distance – AWOrD), domain and location specific responses to wildfire severity are demonstrated. Taken together, our results suggest context-dependency in microbial responses to fire that must be accounted for to generate ecosystem-wide recovery predictions.},

  doi          = {10.1016/j.foreco.2019.117520},

  journal      = {Forest Ecology and Management},

  number       = C,

  volume       = 451,

  place        = {United States},

  year         = {Thu Aug 22 00:00:00 EDT 2019},

  month        = {Thu Aug 22 00:00:00 EDT 2019}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.foreco.2019.117520

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 23 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Fungal Communities and Functional Guilds Shift Along an Elevational Gradient in the Southern Appalachian Mountains

Journal Article Veach, Allison M. ; Stokes, C. Elizabeth ; Knoepp, Jennifer ; ... - Microbial Ecology

Nitrogen deposition alters forest ecosystems particularly in high elevation, montane habitats where nitrogen deposition is greatest and continues to increase. We collected soils across an elevational (788–1940 m) gradient, encompassing both abiotic (soil chemistry) and biotic (vegetation community) gradients, at eight locations in the southern Appalachian Mountains of southwestern North Carolina and eastern Tennessee. We measured soil chemistry (total N, C, extractable PO₄, soil pH, cation exchange capacity [ECEC], percent base saturation [% BS]) and dissected soil fungal communities using ITS2 metabarcode Illumina MiSeq sequencing. Total soil N, C, PO₄, % BS, and pH increased with elevation and plateaued atmore »« less
Cited by 37
https://doi.org/10.1007/s00248-017-1116-6

Full Text Available
Synthesis of Post-fire Monitoring Activities in the Great Basin Desert, Mojave Desert, and Transition Zones

Technical Report Clifford, Michael ; Etyemezian, Vicken ; Chen, Li ; ...

In the deserts of the American Southwest, fire return intervals of centuries to millennia are being replaced by fire return intervals of decades. This increased burn frequency has implications for post-closure management and long-term stewardship for Soils Corrective Action Units (CAUs) and Corrective Action Sites (CASs) on the Nevada National Security Site (NNSS), Tonopah Test Range, and Nevada Test and Training Range for which the U.S. Department of Energy (DOE), Environmental Management-Nevada (EM-NV) is responsible. For many CAUs and CASs, where closure-in-place alternatives were implemented or are being considered, there is a chance that these sites could burn over whilemore »« less
https://doi.org/10.2172/1480331

Full Text Available
Soil bacterial and fungal response to wildfires in the Canadian boreal forest across a burn severity gradient

Journal Article Whitman, Thea ; Whitman, Ellen ; Woolet, Jamie ; ... - Soil Biology and Biochemistry

Global fire regimes are changing, with increases in wildfire frequency and severity expected for many North American forests over the next 100 years. Fires can result in dramatic changes to carbon (C) stocks and can restructure plant and microbial communities, with long-lasting effects on ecosystem functions. We investigated wildfire effects on soil microbial communities (bacteria and fungi) in an extreme fire season in the northwestern Canadian boreal forest, using field surveys, remote sensing, and high-throughput amplicon sequencing in upland and wetland sites. We hypothesized that vegetation community and soil pH would be the most important determinants of microbial community composition,more »« less
Cited by 105
https://doi.org/10.1016/j.soilbio.2019.107571
Resilience in soil bacterial communities of the boreal forest from one to five years after wildfire across a severity gradient

Journal Article Whitman, Thea ; Woolet, Jamie ; Sikora, Miranda ; ... - Soil Biology and Biochemistry

Wildfires can represent a major disturbance to ecosystems, including soil microbial communities belowground. Furthermore, fire regimes are changing in many parts of the world, altering and often increasing fire severity, frequency, and size. The boreal forest and taiga plains ecoregions of northern Canada are characterized by naturally-occurring stand-replacing wildfires on a 40–350 year basis. We previously studied the effects of wildfire on soil microbial communities one year post-fire across 40 sites, spanning a range of burn severity. Here, we return to the same sites five years post-fire to test a series of hypotheses about the effects of fire on bacterialmore »« less
https://doi.org/10.1016/j.soilbio.2022.108755

Full Text Available
Data and scripts associated with a manuscript on a meta-analysis synthesizing stream biogeochemical response to wildfires across space and time.

Dataset Cavaiani, Jake ; Regier, Peter ; Roebuck, Alan ; ...

This data package is associated with the publication “Catchment characteristics modulate the influence of wildfires on nitrate and dissolved organic carbon across space and time: A meta-analysis.” submitted to Global Change Biology (Cavaiani et al. 2024., in preparation). This study uses meta-analytical techniques to evaluate the effect of wildfire on in-stream responses in burned and unburned watersheds. The study aims to provide additional insight into the range of responses and net influences that wildfires have on hydro-biogeochemistry across broad spatial scales, burn extents, and the persistence of water-quality change. This study compiles data and metadata from 18 total publications thatmore »« less
https://doi.org/10.15485/2319038

View Dataset

Similar Records