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Title: Groundwater–surface water mixing shifts ecological assembly processes and stimulates organic carbon turnover

Abstract

Environmental transition zones are associated with geochemical gradients that overcome energy limitations to microbial metabolism, resulting in biogeochemical hot spots and moments. Riverine systems where groundwater mixes with surface water (the hyporheic zone) are spatially complex and temporally dynamic, making development of predictive models challenging. Spatial and temporal variations in hyporheic zone microbial communities are a key, but understudied, component of riverine biogeochemical function. To investigate the coupling among groundwater-surface water mixing, microbial communities, and biogeochemistry we applied ecological theory, aqueous biogeochemistry, DNA sequencing, and ultra-high resolution organic carbon profiling to field samples collected across times and locations representing a broad range of mixing conditions. Mixing of groundwater and surface water resulted in a shift from transport-driven stochastic dynamics to a deterministic microbial structure associated with elevated biogeochemical rates. While the dynamics of the hyporheic make predictive modeling a challenge, we provide new knowledge that can improve the tractability of such models.

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. The Ohio State Univ., Columbus, OH (United States)
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1253864
Report Number(s):
PNNL-SA-111962
Journal ID: ISSN 2041-1723; ncomms11237
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; biogeochemical hotspot; deterministic selection; ecological drift; ecological null model; FTICR mass spectrometry; Hanford 300 Area; hyporheic zone; mixing model; organic carbon; phylogenetic beta-diversity; subsurface biogeochemistry; subsurface microbiology

Citation Formats

Stegen, James C., Fredrickson, James K., Wilkins, Michael J., Konopka, Allan E., Nelson, William C., Arntzen, Evan V., Chrisler, William B., Chu, Rosalie K., Danczak, Robert E., Fansler, Sarah J., Kennedy, David W., Resch, Charles T., and Tfaily, Malak. Groundwater–surface water mixing shifts ecological assembly processes and stimulates organic carbon turnover. United States: N. p., 2016. Web. doi:10.1038/ncomms11237.
Stegen, James C., Fredrickson, James K., Wilkins, Michael J., Konopka, Allan E., Nelson, William C., Arntzen, Evan V., Chrisler, William B., Chu, Rosalie K., Danczak, Robert E., Fansler, Sarah J., Kennedy, David W., Resch, Charles T., & Tfaily, Malak. Groundwater–surface water mixing shifts ecological assembly processes and stimulates organic carbon turnover. United States. https://doi.org/10.1038/ncomms11237
Stegen, James C., Fredrickson, James K., Wilkins, Michael J., Konopka, Allan E., Nelson, William C., Arntzen, Evan V., Chrisler, William B., Chu, Rosalie K., Danczak, Robert E., Fansler, Sarah J., Kennedy, David W., Resch, Charles T., and Tfaily, Malak. Thu . "Groundwater–surface water mixing shifts ecological assembly processes and stimulates organic carbon turnover". United States. https://doi.org/10.1038/ncomms11237. https://www.osti.gov/servlets/purl/1253864.
@article{osti_1253864,
title = {Groundwater–surface water mixing shifts ecological assembly processes and stimulates organic carbon turnover},
author = {Stegen, James C. and Fredrickson, James K. and Wilkins, Michael J. and Konopka, Allan E. and Nelson, William C. and Arntzen, Evan V. and Chrisler, William B. and Chu, Rosalie K. and Danczak, Robert E. and Fansler, Sarah J. and Kennedy, David W. and Resch, Charles T. and Tfaily, Malak},
abstractNote = {Environmental transition zones are associated with geochemical gradients that overcome energy limitations to microbial metabolism, resulting in biogeochemical hot spots and moments. Riverine systems where groundwater mixes with surface water (the hyporheic zone) are spatially complex and temporally dynamic, making development of predictive models challenging. Spatial and temporal variations in hyporheic zone microbial communities are a key, but understudied, component of riverine biogeochemical function. To investigate the coupling among groundwater-surface water mixing, microbial communities, and biogeochemistry we applied ecological theory, aqueous biogeochemistry, DNA sequencing, and ultra-high resolution organic carbon profiling to field samples collected across times and locations representing a broad range of mixing conditions. Mixing of groundwater and surface water resulted in a shift from transport-driven stochastic dynamics to a deterministic microbial structure associated with elevated biogeochemical rates. While the dynamics of the hyporheic make predictive modeling a challenge, we provide new knowledge that can improve the tractability of such models.},
doi = {10.1038/ncomms11237},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {Thu Apr 07 00:00:00 EDT 2016},
month = {Thu Apr 07 00:00:00 EDT 2016}
}

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The effect of unsteady streamflow and stream-groundwater interactions on oxygen consumption in a sandy streambed
journal, December 2019


Evidence for Microbial Mediated NO3− Cycling Within Floodplain Sediments During Groundwater Fluctuations
journal, July 2019


Two key features influencing community assembly processes at regional scale: Initial state and degree of change in environmental conditions
journal, November 2018

  • Feng, Youzhi; Chen, Ruirui; Stegen, James C.
  • Molecular Ecology, Vol. 27, Issue 24
  • DOI: 10.1111/mec.14914

In-situ microbial colonization and its potential contribution on biofilm formation in subsurface sediments
journal, March 2019

  • Lee, Ji-Hoon; Lee, Bong-Joo; Yun, Uk
  • Journal of Applied Biological Chemistry, Vol. 62, Issue 1
  • DOI: 10.3839/jabc.2019.008

Selection imposed by local environmental conditions drives differences in microbial community composition across geographically distinct groundwater aquifers
journal, October 2019

  • Fillinger, Lucas; Hug, Katrin; Griebler, Christian
  • FEMS Microbiology Ecology, Vol. 95, Issue 11
  • DOI: 10.1093/femsec/fiz160

Oligotrophic wetland sediments susceptible to shifts in microbiomes and mercury cycling with dissolved organic matter addition
journal, January 2018

  • Graham, Emily B.; Gabor, Rachel S.; Schooler, Shon
  • PeerJ, Vol. 6
  • DOI: 10.7717/peerj.4575

Profiling the microbial community structure and functional diversity of a dam‐regulated river undergoing gravel bar restoration
journal, September 2021

  • Serrana, Joeselle M.; Li, Bin; Sumi, Tetsuya
  • Freshwater Biology, Vol. 66, Issue 11
  • DOI: 10.1111/fwb.13824

Spatial gradients in the characteristics of soil-carbon fractions are associated with abiotic features but not microbial communities
journal, January 2019


Phases saturation control on mixing driven reactions in 3D porous media
text, January 2021


Coupling Spatiotemporal Community Assembly Processes to Changes in Microbial Metabolism
journal, December 2016


Variations in bacterial and archaeal communities along depth profiles of Alaskan soil cores
journal, January 2018


Dam Operations and Subsurface Hydrogeology Control Dynamics of Hydrologic Exchange Flows in a Regulated River Reach
journal, April 2019

  • Shuai, Pin; Chen, Xingyuan; Song, Xuehang
  • Water Resources Research, Vol. 55, Issue 4
  • DOI: 10.1029/2018wr024193

Responses of microbial activity in hyporheic pore water to biogeochemical changes in a drying headwater stream
journal, February 2019

  • Harjung, Astrid; Perujo, Núria; Butturini, Andrea
  • Freshwater Biology
  • DOI: 10.1111/fwb.13258

Application of the microbial community coalescence concept to riverine networks: Riverine microbial community coalescence
journal, April 2018

  • Mansour, India; Heppell, Catherine M.; Ryo, Masahiro
  • Biological Reviews, Vol. 93, Issue 4
  • DOI: 10.1111/brv.12422

Spatial gradients in the characteristics of soil-carbon fractions are associated with abiotic features but not microbial communities
journal, January 2019