The Introduction of Woody Plants for Freshwater Wetland Restoration Alters the Archaeal Community Structure in Soil

2017 ◽  
Vol 28 (7) ◽  
pp. 1933-1942 ◽  
Author(s):  
Xiao‐Yan Liu ◽  
Kai‐Yun Tao ◽  
Jing Sun ◽  
Chi‐Quan He ◽  
Jun Cui ◽  
...  
Keyword(s):  
Community Structure ◽  
Wetland Restoration ◽  
Woody Plants ◽  
Archaeal Community ◽  
Freshwater Wetland

scholarly journals Microbial subnetworks related to short-term diel O2fluxes within geochemically distinct freshwater wetlands

2018 ◽  
Author(s):  
Dean J. Horton ◽  
Matthew J. Cooper ◽  
Anthony J. Wing ◽  
Peter S. Kourtev ◽  
Donald G. Uzarski ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Communities ◽  
Archaeal Community ◽  
Freshwater Wetlands ◽  
Freshwater Wetland ◽  
Short Term ◽  
Wetland Ecosystems ◽  
Biogeochemical Transformations ◽  
Physical And Chemical

ABSTRACTO2concentrations often fluctuate over diel timescales within wetlands, driven by temperature, sunlight, photosynthesis, and respiration. These daily fluxes have been shown to impact biogeochemical transformations (e.g. denitrification), which are mediated by the residing microbial community. However, little is known about how resident microbial communities respond to diel dramatic physical and chemical fluxes in freshwater wetland ecosystems. In this study, total microbial (bacterial and archaeal) community structure was significantly related to diel time points in just one out of four distinct freshwater wetlands sampled. This suggests that daily environmental shifts may influence wetlands differentially based upon the resident microbial community and specific physical and chemical conditions of a freshwater wetland. However, when exploring at finer resolutions of the microbial communities within each wetland, subcommunities within two wetlands were found to correspond to fluctuating O2levels. Microbial taxa that were found to be susceptible to fluctuating O2levels within these subnetworks may have intimate ties to metabolism and/or diel redox cycles. This study highlights that freshwater wetland microbial communities are often stable in community structure when confronted with short-term O2fluxes, however, specialist taxa may be sensitive to these same fluxes.

Effect of long-term fertilization on archaeal community structure in cal-careous purplish paddy soil

2011 ◽  
Vol 19 (3) ◽  
pp. 369-376
Author(s):  
Gu Yunfu ◽  
Zhang Xiaoping ◽  
Tu Shihua ◽  
Lindström Kristina
Keyword(s):  
Community Structure ◽  
Paddy Soil ◽  
Archaeal Community

scholarly journals Archaeal ammonia oxidizers respond to soil factors at smaller spatial scales than the overall archaeal community does in a high Arctic polar oasis

2016 ◽  
Vol 62 (6) ◽  
pp. 485-491 ◽  
Author(s):  
Samiran Banerjee ◽  
Nabla Kennedy ◽  
Alan E. Richardson ◽  
Keith N. Egger ◽  
Steven D. Siciliano
Keyword(s):  
Community Structure ◽  
Spatial Scales ◽  
Archaeal Community ◽  
Diversity Indices ◽  
High Arctic ◽  
Total Carbon ◽  
Spatial Dependency ◽  
Edaphic Factors ◽  
Total Carbon Content ◽  
Arctic Soils

Archaea are ubiquitous and highly abundant in Arctic soils. Because of their oligotrophic nature, archaea play an important role in biogeochemical processes in nutrient-limited Arctic soils. With the existing knowledge of high archaeal abundance and functional potential in Arctic soils, this study employed terminal restriction fragment length polymorphism (t-RFLP) profiling and geostatistical analysis to explore spatial dependency and edaphic determinants of the overall archaeal (ARC) and ammonia-oxidizing archaeal (AOA) communities in a high Arctic polar oasis soil. ARC communities were spatially dependent at the 2–5 m scale (P < 0.05), whereas AOA communities were dependent at the ∼1 m scale (P < 0.0001). Soil moisture, pH, and total carbon content were key edaphic factors driving both the ARC and AOA community structure. However, AOA evenness had simultaneous correlations with dissolved organic nitrogen and mineral nitrogen, indicating a possible niche differentiation for AOA in which dry mineral and wet organic soil microsites support different AOA genotypes. Richness, evenness, and diversity indices of both ARC and AOA communities showed high spatial dependency along the landscape and resembled scaling of edaphic factors. The spatial link between archaeal community structure and soil resources found in this study has implications for predictive understanding of archaea-driven processes in polar oases.

Environmental factors shaping the archaeal community structure and ether lipid distribution in a subtropic river and estuary, China

2017 ◽  
Vol 102 (1) ◽  
pp. 461-474 ◽  
Author(s):  
Wenting Guo ◽  
Wei Xie ◽  
Xueying Li ◽  
Peng Wang ◽  
Anyi Hu ◽  
...  
Keyword(s):  
Community Structure ◽  
Environmental Factors ◽  
Ether Lipid ◽  
Archaeal Community ◽  
Lipid Distribution

scholarly journals Successional dynamics of a 35 year old freshwater mitigation wetland in southeastern New Hampshire

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0251748
Author(s):  
J. Grant McKown ◽  
Gregg E. Moore ◽  
Andrew R. Payne ◽  
Natalie A. White ◽  
Jennifer L. Gibson
Keyword(s):  
Species Composition ◽  
New Hampshire ◽  
Wetland Restoration ◽  
Wetland Mitigation ◽  
Freshwater Wetland ◽  
Compensatory Mitigation ◽  
Avian Community ◽  
Long Term Monitoring ◽  
Term Monitoring

The long-term ecological success of compensatory freshwater wetland projects has come into question based on follow-up monitoring studies over the past few decades. Given that wetland restoration may require many years to decades to converge to desired outcomes, long-term monitoring of successional patterns may increase our ability to fully evaluate success of wetland mitigation projects or guide adaptive management when needed. In Portsmouth, New Hampshire a 4 ha wetland was constructed in an abandoned gravel quarry as off-site compensatory mitigation for impacts to a scrub-shrub swamp associated with property expansion. Building upon prior evaluations from 1992 and 2002, we conducted a floral survey in 2020 to compare results with prior surveys to document vegetation successional trends over time. In addition, we monitored the avian community throughout the growing season as a measure of habitat quality. The plant community mirrored documented successional trends of freshwater wetland restoration projects as native hydrophytes dominated species composition. Plant species composition stabilized as the rate of turnover, the measurement of succession, declined by nearly half after 17 years. Researchers should consider long-term monitoring of specific sites to better understand successional patterns of created wetlands as we documented long time frames required for the development of scrub-shrub swamps, red maple swamps, and sedge meadows. High species richness was attributed to beaver activity, topographic heterogeneity from Carex stricta tussocks, and the seed bank from the application of peat from the original wetland. Habitat heterogeneity of open water, herbaceous cover, and woody vegetation supports a diverse avian community including 11 wetland dependent species. Although the mitigation project has not created the full area of lost scrub-shrub swamp after 35 years, it has developed a structurally complex habitat and diverse avian community that effectively provides the functions and values of the impacted system.

scholarly journals Metagenomes from Experimental Hydrologic Manipulation of Restored Coastal Plain Wetland Soils (Tyrell County, North Carolina)

2020 ◽  
Vol 9 (41) ◽  
Author(s):  
Ariane L. Peralta ◽  
Regina B. Bledsoe ◽  
Mario E. Muscarella ◽  
Marcel Huntemann ◽  
Alicia Clum ◽  
...  
Keyword(s):  
North Carolina ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Coastal Plain ◽  
Freshwater Wetland ◽  
Ecosystem Functions ◽  
Wetland Soils ◽  
Wetland Soil ◽  
Hydrologic Conditions

ABSTRACT Hydrologic changes modify microbial community structure and ecosystem functions, especially in wetland systems. Here, we present 24 metagenomes from a coastal freshwater wetland experiment in which we manipulated hydrologic conditions and plant presence. These wetland soil metagenomes will deepen our understanding of how hydrology and vegetation influence microbial functional diversity.

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