Environmental Regulation Of Tidal Wetland Microbial Communities And Associated Biogeochemistry

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Environmental Regulation of Tidal Wetland Microbial Communities and Associated Biogeochemistry

Author : Ember M. Morrissey
Publisher :
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.:/5 (868 download)

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Book Synopsis Environmental Regulation of Tidal Wetland Microbial Communities and Associated Biogeochemistry by : Ember M. Morrissey

Download or read book Environmental Regulation of Tidal Wetland Microbial Communities and Associated Biogeochemistry written by Ember M. Morrissey and published by . This book was released on 2014 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial communities play an essential role in carrying out the biogeochemical cycles that sustain life on Earth, yet we know very little about their ecology. One question of particular interest is how environmental conditions shape microbial community structure (i.e., the types of organisms found in the community and their relative abundance), and whether such changes in structure are related to biogeochemical function. It is the aim of this dissertation to address this question via the examination of carbon (C) and nitrogen (N) cycling in wetland ecosystems, which due to their diverse hydrology have a profound influence on biogeochemical cycles. With respect to N cycling, the community structure of denitrification- and dissimilatory nitrate reduction to ammonium (DNRA)-capable organisms was evaluated in response to changes in resource availability, specifically organic matter (OM) and nitrate (NO3-), using an in situ field manipulation. Interactive regulation of microbial community composition was exhibited in both groups, likely due to variation in C substrate preferences and NO3- utilization efficiency. Subsequent experimentation considering only denitrification revealed that resource regulation of activity rates was mediated through changes in denitrifier community composition. The resource regulation of wetland C cycling also was evaluated using an in situ OM manipulation. OM characteristics (e.g., degree of decomposition) affected microbial extracellular enzyme activity (EEA) and changed the community structure of bacteria, archaea, and methanogens. These changes were linked with carbon dioxide and methane production via a conceptual model diagramming the importance of microbial community structure and EEA in greenhouse gas production. The investigation of C cycling in wetlands was extended to consider an important global change threat: saltwater intrusion into freshwater tidal wetlands. Bacterial community structure and EEA were examined along a natural salinity gradient. Salinity was strongly associated with bacterial community structure and positively correlated with EEA. These results suggested that salinity-induced increases in decomposition were responsible for reduced soil OM content in more saline wetlands. This work demonstrates that microbial communities in wetlands are structured by environmental conditions including resource availability and salinity. Further, the research provides evidence that environmental regulation of important biogeochemical processes in wetlands (e.g., methanogensis, denitrification, etc.) is mediated through changes in microbial community structure.

Biogeochemistry of Wetlands

Author : K. Ramesh Reddy
Publisher : CRC Press
ISBN 13 : 0429531931
Total Pages : 926 pages
Book Rating : 4.4/5 (295 download)

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Book Synopsis Biogeochemistry of Wetlands by : K. Ramesh Reddy

Download or read book Biogeochemistry of Wetlands written by K. Ramesh Reddy and published by CRC Press. This book was released on 2022-09-10 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: The globally important nature of wetland ecosystems has led to their increased protection and restoration as well as their use in engineered systems. Underpinning the beneficial functions of wetlands are a unique suite of physical, chemical, and biological processes that regulate elemental cycling in soils and the water column. This book provides an in-depth coverage of these wetland biogeochemical processes related to the cycling of macroelements including carbon, nitrogen, phosphorus, and sulfur, secondary and trace elements, and toxic organic compounds. In this synthesis, the authors combine more than 100 years of experience studying wetlands and biogeochemistry to look inside the black box of elemental transformations in wetland ecosystems. This new edition is updated throughout to include more topics and provide an integrated view of the coupled nature of biogeochemical cycles in wetland systems. The influence of the elemental cycles is discussed at a range of scales in the context of environmental change including climate, sea level rise, and water quality. Frequent examples of key methods and major case studies are also included to help the reader extend the basic theories for application in their own system. Some of the major topics discussed are: Flooded soil and sediment characteristics Aerobic-anaerobic interfaces Redox chemistry in flooded soil and sediment systems Anaerobic microbial metabolism Plant adaptations to reducing conditions Regulators of organic matter decomposition and accretion Major nutrient sources and sinks Greenhouse gas production and emission Elemental flux processes Remediation of contaminated soils and sediments Coupled C-N-P-S processes Consequences of environmental change in wetlands# The book provides the foundation for a basic understanding of key biogeochemical processes and its applications to solve real world problems. It is detailed, but also assists the reader with box inserts, artfully designed diagrams, and summary tables all supported by numerous current references. This book is an excellent resource for senior undergraduates and graduate students studying ecosystem biogeochemistry with a focus in wetlands and aquatic systems.

Wetland Carbon and Environmental Management

Author : Ken W. Krauss
Publisher : John Wiley & Sons
ISBN 13 : 111963928X
Total Pages : 484 pages
Book Rating : 4.1/5 (196 download)

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Book Synopsis Wetland Carbon and Environmental Management by : Ken W. Krauss

Download or read book Wetland Carbon and Environmental Management written by Ken W. Krauss and published by John Wiley & Sons. This book was released on 2021-11-23 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores how the management of wetlands can influence carbon storage and fluxes. Wetlands are vital natural assets, including their ability to take-up atmospheric carbon and restrict subsequent carbon loss to facilitate long-term storage. They can be deliberately managed to provide a natural solution to mitigate climate change, as well as to help offset direct losses of wetlands from various land-use changes and natural drivers. Wetland Carbon and Environmental Management presents a collection of wetland research studies from around the world to demonstrate how environmental management can improve carbon sequestration while enhancing wetland health and function. Volume highlights include: Overview of carbon storage in the landscape Introduction to wetland management practices Comparisons of natural, managed, and converted wetlands Impact of wetland management on carbon storage or loss Techniques for scientific assessment of wetland carbon processes Case studies covering tropical, coastal, inland, and northern wetlands Primer for carbon offset trading programs and how wetlands might contribute The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity.Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.

Microbiology of wetlands

Author : Paul Bodelier
Publisher : Frontiers E-books
ISBN 13 : 2889191443
Total Pages : 207 pages
Book Rating : 4.8/5 (891 download)

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Book Synopsis Microbiology of wetlands by : Paul Bodelier

Download or read book Microbiology of wetlands written by Paul Bodelier and published by Frontiers E-books. This book was released on 2013-07-08 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Watersaturated soil and sediment ecosystems (i.e. wetlands) are ecologically as well as economically important systems due to their high productivity, their nutrient (re)cycling capacities and their prominent contribution to global greenhouse gas emissions. Being on the transition between terrestrial and – aquatic ecosystems, wetlands are buffers for terrestrial run off thereby preventing eutrophication of inland as well as coastal waters. The close proximity of oxic-anoxic conditions, often created by wetland plant roots, facilitates the simultaneous activity of aerobic as well as anaerobic microbial communities. Input of nutrients and fast recycling due to active aerobes and anaerobes makes these systems highly productive and therefore attractive for humans as well as many other organisms. Wetlands globally are under high pressure due to anthropogenic activities as well as climate change. Changes of land-use as well as altered hydrology due to climate change will lead to disturbance and loss of these habitats. However, the diversity and functioning of microbial communities in wetlands systems in highly underexplored in comparison to soils and aquatic ecosystems. Given the importance of wetlands and their immediate threats combined with the lack of knowledge on the microbiology of these systems is the basis for this special issue, focusing on the current microbiological knowledge and gaps therein to be assessed in future wetland research. Papers (research papers, reviews, perspectives, opinion papers) are welcomed that focus on all aspects that regulate the functioning and community composition of microbes (i.e. bacteria, archaea, protozoa, fungi) in wetland ecosystems (peat, coastal as well as freshwater marshes, flood plains, rice paddies, littoral zones of lakes etc) from all geographic regions. Welcomed topics are physiology, ecology, functioning, biodiversity, biogeography of microbes involved in nutrient cycling (C, N, P, Fe, Mn), green house gas emissions as well as plant-microbe interactions. These studies can be multidisciplinary and cover topics from the molecular to the community level.

Tidal Freshwater Wetlands

Author : Aat Barendregt
Publisher :
ISBN 13 : 9783823615514
Total Pages : 320 pages
Book Rating : 4.6/5 (155 download)

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Book Synopsis Tidal Freshwater Wetlands by : Aat Barendregt

Download or read book Tidal Freshwater Wetlands written by Aat Barendregt and published by . This book was released on 2009 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ecology of Freshwater and Estuarine Wetlands

Author : Dr. Darold P. Batzer
Publisher : Univ of California Press
ISBN 13 : 0520959116
Total Pages : 374 pages
Book Rating : 4.5/5 (29 download)

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Book Synopsis Ecology of Freshwater and Estuarine Wetlands by : Dr. Darold P. Batzer

Download or read book Ecology of Freshwater and Estuarine Wetlands written by Dr. Darold P. Batzer and published by Univ of California Press. This book was released on 2014-12-06 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of this important and authoritative survey provides students and researchers with up-to-date and accessible information about the ecology of freshwater and estuarine wetlands. Prominent scholars help students understand both general concepts of different wetland types as well as complex topics related to these dynamic physical environments. Careful syntheses review wetland soils, hydrology, and geomorphology; abiotic constraints for wetland plants and animals; microbial ecology and biogeochemistry; development of wetland plant communities; wetland animal ecology; and carbon dynamics and ecosystem processes. In addition, contributors document wetland regulation, policy, and assessment in the US and provide a clear roadmap for adaptive management and restoration of wetlands. New material also includes an expanded review of the consequences for wetlands in a changing global environment. Ideally suited for wetlands ecology courses, Ecology of Freshwater and Estuarine Wetlands, Second Edition, includes updated content, enhanced images (many in color), and innovative pedagogical elements that guide students and interested readers through the current state of our wetlands.

Aquatic Microbial Ecology and Biogeochemistry: A Dual Perspective

Author : Patricia M. Glibert
Publisher : Springer
ISBN 13 : 3319302590
Total Pages : 304 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Aquatic Microbial Ecology and Biogeochemistry: A Dual Perspective by : Patricia M. Glibert

Download or read book Aquatic Microbial Ecology and Biogeochemistry: A Dual Perspective written by Patricia M. Glibert and published by Springer. This book was released on 2016-07-25 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights perspectives, insights, and data in the coupled fields of aquatic microbial ecology and biogeochemistry when viewed through the lens of collaborative duos – dual career couples. Their synergy and collaborative interactions have contributed substantially to our contemporary understanding of pattern, process and dynamics. This is thus a book by dual career couples about dual scientific processes. The papers herein represent wide-ranging topics, from the processes that structure microbial diversity to nitrogen and photosynthesis metabolism, to dynamics of changing ecosystems and processes and dynamics in individual ecosystems. In all, these papers take us from the Arctic to Africa, from the Arabian Sea to Australia, from small lakes in Maine and Yellowstone hot vents to the Sargasso Sea, and in the process provide analyses that make us think about the structure and function of all of these systems in the aquatic realm. This book is useful not only for the depth and breadth of knowledge conveyed in its chapters, but serves to guide dual career couples faced with the great challenges only they face. Great teams do make great science.

Depth and Time Related Variations of Microbial Communities in an Emergent Freshwater Wetland

Author : Amy Jenkins
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (698 download)

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Book Synopsis Depth and Time Related Variations of Microbial Communities in an Emergent Freshwater Wetland by : Amy Jenkins

Download or read book Depth and Time Related Variations of Microbial Communities in an Emergent Freshwater Wetland written by Amy Jenkins and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils, and the microbial communities contained within them, are vital for most chemical, physical, and biological processes. This study investigated how microbial community structure responded to environmental changes, such as hydrology, across vertical space (depth) and time in an emergent fresh water wetland. Research was conducted in a non-tidal freshwater wetland along the James River (Charles City County, Virginia) by establishing plots in two areas that experienced different hydrologic regimes and plant communities. Soil cores (30 cm) were collected monthly from January 2008 to February 2009, and then every two to three months thereafter until October 2009, for a total of 17 sampling events. The soil cores were divided by depth (Top: 0 - 10 cm, Bottom: 20 - 30 cm) and analyzed for a variety of soil properties including: pH, organic matter (OM), water content (WC), C:N, redox, and root biomass. Additionally, above-ground plant communities were monitored during the growing seasons. Based on preliminary analysis, one date from each season (Winter, Spring, Summer, and Fall) from both sampling years were selected for in depth analysis of the microbial community structure via Terminal Restriction Fragment Length Polymorphism (T-RFLP) of 16S-rRNA. Analysis of variance (ANOVA) found significant differences were found between the environmental parameters in regards to site, depth, and season. Three physical-chemical variables (WC, OM, and redox) were different between sites, but the majority of environmental parameters were significantly different between depths and seasons. The dominant environmental effect on microbial communities was soil depth and, overall, no seasonal patterns were observed in the microbial communities. Further, archaeal communities were most strongly correlated to changes in water content, while redox was strongly correlated to changes across depth in the bacterial communities. Collectively, these results demonstrate that wetland microbial communities are not a product of one separate variable or spatial scale, but result from various factors interlinked to shape microbial communities. More long-term studies are needed to investigate interactions between microbial community structure and environmental variables in these dynamic ecosystems.

Biogeochemical processes of micro/trace elements and their impacts on marine ecosystems

Author : Wen Zhuang
Publisher : Frontiers Media SA
ISBN 13 : 2832541925
Total Pages : 192 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Biogeochemical processes of micro/trace elements and their impacts on marine ecosystems by : Wen Zhuang

Download or read book Biogeochemical processes of micro/trace elements and their impacts on marine ecosystems written by Wen Zhuang and published by Frontiers Media SA. This book was released on 2024-01-02 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Development of Soil Microbial Community Structure in Created and Natural Wetlands

Author : Wendy A. Owens
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)

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Book Synopsis Development of Soil Microbial Community Structure in Created and Natural Wetlands by : Wendy A. Owens

Download or read book Development of Soil Microbial Community Structure in Created and Natural Wetlands written by Wendy A. Owens and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Wetlands are ecologically and economically important, providing ecosystem services such as biogeochemical cycling, carbon sequestration, flood mitigation, and wildlife habitat. Many of these services are the result of the unique microbial communities found in wetlands. Degradation and destruction of wetlands, from direct human development or indirect stressors caused by climate change, pollution, or invasive species, disrupts community structure and provision of services. Although restoration has been adopted as a mechanism to counteract net loss of function, the success rate in achieving functional equivalence with natural wetlands is low. To improve wetland conservation and outcomes for wetland creation, a better understanding of biotic community structure and biotic-abiotic relationships in developing wetlands is needed. By using the metagenomic approach of 16s rRNA amplicon sequencing, we can better understand the role of microbial communities as drivers of wetland biogeochemical cycling and predict future resilience. I evaluated environmental factors and microbial community structure of young and mature back barrier salt marshes and depressional freshwater wetlands. Salt marshes are particularly vulnerable to climate change. Evaluation of amplicon data suggests an increase in diversity and functional redundancy with marsh age, but also potential for greater resilience in the Young Marsh, where sandier sediments limit waterlogging and anoxia. In created freshwater wetlands, antecedent land use and hydrology may drive soil physico-chemistry and shape microbial community structure, which is distinctly different from mature, reference wetlands. Management of soils by amending with leaf litter compost drives abiotic factors closer to a mature marsh, but at the same time results in a unique microbial community unlike either a young or mature wetland. This suggests a potential shift in function away from the desired trajectory. Evaluation of the microbial community structure provides insight into underlying wetland function and promotes development of management practices to maximize function and overall resilience."--Abstract.

Ecophysiology and Biogeochemistry of Marine Plants in the Anthropocene

Author : Kasper Elgetti Brodersen
Publisher : Frontiers Media SA
ISBN 13 : 2832501117
Total Pages : 190 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Ecophysiology and Biogeochemistry of Marine Plants in the Anthropocene by : Kasper Elgetti Brodersen

Download or read book Ecophysiology and Biogeochemistry of Marine Plants in the Anthropocene written by Kasper Elgetti Brodersen and published by Frontiers Media SA. This book was released on 2022-09-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Disturbance, resilience and restoration of wetlands

Author : Chuanyu Gao
Publisher : Frontiers Media SA
ISBN 13 : 2832525512
Total Pages : 241 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Disturbance, resilience and restoration of wetlands by : Chuanyu Gao

Download or read book Disturbance, resilience and restoration of wetlands written by Chuanyu Gao and published by Frontiers Media SA. This book was released on 2023-06-07 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wetland Biogeochemistry: Response to Environmental Change

Author : Fereidoun Rezanezhad
Publisher : Frontiers Media SA
ISBN 13 : 2889638456
Total Pages : 137 pages
Book Rating : 4.8/5 (896 download)

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Book Synopsis Wetland Biogeochemistry: Response to Environmental Change by : Fereidoun Rezanezhad

Download or read book Wetland Biogeochemistry: Response to Environmental Change written by Fereidoun Rezanezhad and published by Frontiers Media SA. This book was released on 2020-07-09 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Coastal Wetlands

Author : Gerardo M.E. Perillo
Publisher : Elsevier
ISBN 13 : 0080932134
Total Pages : 975 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Coastal Wetlands by : Gerardo M.E. Perillo

Download or read book Coastal Wetlands written by Gerardo M.E. Perillo and published by Elsevier. This book was released on 2009-01-18 with total page 975 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal wetlands are under a great deal of pressure from the dual forces of rising sea level and the intervention of human populations both along the estuary and in the river catchment. Direct impacts include the destruction or degradation of wetlands from land reclamation and infrastructures. Indirect impacts derive from the discharge of pollutants, changes in river flows and sediment supplies, land clearing, and dam operations. As sea level rises, coastal wetlands in most areas of the world migrate landward to occupy former uplands. The competition of these lands from human development is intensifying, making the landward migration impossible in many cases. This book provides an understanding of the functioning of coastal ecosystems and the ecological services that they provide, and suggestions for their management. In this book a CD is included containing color figures of wetlands and estuaries in different parts of the world. Includes a CD containing color figures of wetlands and estuaries in different parts of the world.

Forest and Rangeland Soils of the United States Under Changing Conditions

Author : Richard V. Pouyat
Publisher : Springer Nature
ISBN 13 : 3030452166
Total Pages : 306 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Forest and Rangeland Soils of the United States Under Changing Conditions by : Richard V. Pouyat

Download or read book Forest and Rangeland Soils of the United States Under Changing Conditions written by Richard V. Pouyat and published by Springer Nature. This book was released on 2020-09-02 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book synthesizes leading-edge science and management information about forest and rangeland soils of the United States. It offers ways to better understand changing conditions and their impacts on soils, and explores directions that positively affect the future of forest and rangeland soil health. This book outlines soil processes and identifies the research needed to manage forest and rangeland soils in the United States. Chapters give an overview of the state of forest and rangeland soils research in the Nation, including multi-decadal programs (chapter 1), then summarizes various human-caused and natural impacts and their effects on soil carbon, hydrology, biogeochemistry, and biological diversity (chapters 2–5). Other chapters look at the effects of changing conditions on forest soils in wetland and urban settings (chapters 6–7). Impacts include: climate change, severe wildfires, invasive species, pests and diseases, pollution, and land use change. Chapter 8 considers approaches to maintaining or regaining forest and rangeland soil health in the face of these varied impacts. Mapping, monitoring, and data sharing are discussed in chapter 9 as ways to leverage scientific and human resources to address soil health at scales from the landscape to the individual parcel (monitoring networks, data sharing Web sites, and educational soils-centered programs are tabulated in appendix B). Chapter 10 highlights opportunities for deepening our understanding of soils and for sustaining long-term ecosystem health and appendix C summarizes research needs. Nine regional summaries (appendix A) offer a more detailed look at forest and rangeland soils in the United States and its Affiliates.

Coastal Wetlands

Author : Gerardo Perillo
Publisher : Elsevier
ISBN 13 : 0444638946
Total Pages : 1130 pages
Book Rating : 4.4/5 (446 download)

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Book Synopsis Coastal Wetlands by : Gerardo Perillo

Download or read book Coastal Wetlands written by Gerardo Perillo and published by Elsevier. This book was released on 2018-11-02 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal Wetlands, Second Edition: An Integrated and Ecosystem Approach provides an understanding of the functioning of coastal ecosystems and the ecological services that they provide. As coastal wetlands are under a great deal of pressure from the dual forces of rising sea levels and the intervention of human populations, both along the estuary and in the river catchment, this book covers important issues, such as the destruction or degradation of wetlands from land reclamation and infrastructures, impacts from the discharge of pollutants, changes in river flows and sediment supplies, land clearing, and dam operations. Covers climate change and its influence on coastal wetland form and function Provides a fully updated and expanded resource, including new chapters on modeling, management and the impact of climate change Contains full-color figures of wetlands and estuaries in different parts of the world

Environmental Effects on Constructed Wetland Microbial Diversity and Function in the Context of Wastewater Management

Author : Sandrine Grandmont-Lemire
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Environmental Effects on Constructed Wetland Microbial Diversity and Function in the Context of Wastewater Management by : Sandrine Grandmont-Lemire

Download or read book Environmental Effects on Constructed Wetland Microbial Diversity and Function in the Context of Wastewater Management written by Sandrine Grandmont-Lemire and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial communities play a crucial role in ecosystems, yet we know little about how microbial diversity influences ecosystem functioning. An important gap in our understanding is how environmental change affects microbial Biodiversity-Ecosystem Function relationships (BEF). These complex interactions between microbial biodiversity and ecosystem function can influence major biogeochemical processes, such as the nitrogen cycle in wetland ecosystems, which play an important role in managing wastewater. To address the effect of biodiversity on function, my study investigates the BEF relationships between microbial diversity and the function in terms of ammonia removal from wastewater at the Arcata Wastewater Treatment Facility (AWTF) both spatially and temporally. The AWTF uses several natural treatment systems consisting of Oxidation Ponds and constructed wetlands for secondary wastewater treatment. These natural treatment systems provide a unique opportunity to study microbial community BEF relationships because they are interconnected by the flow of nutrients in the wastewater and are exposed to seasonal changes. First, I conducted a field study where I sampled the AWTF natural treatment system from Autumn to Spring. Based on classical BEF studies, I expected a positive relationship between microbial biodiversity and ecosystem function, but also anticipated a potential effect of seasonal and spatial factors in strengthening or weakening the relationship. Instead, I found a significant negative BEF relationship between microbial community richness and ammonia removal. Ammonia concentration significantly decreased through the wastewater purification system, yet microbial diversity was unrelated to the different locations in the wastewater treatment system. In turn, seasonality significantly affected the microbial community diversity where richness was lower during Spring. Following the field study, I conducted a microcosm experiment to determine the direct effect of an environmental change in terms of dissolved oxygen (DO) concentration on biodiversity and ecosystem function. The DO concentration had a positive relationship with evenness and a negative relationship with richness. In addition to the DO relationships, I observed a negative correlation between evenness and nitrification which reflects the BEF relationship findings from the field study. Because the lower evenness values are associated with more ammonia removal, these results further support that ammonia removal capabilities of the AWTF are most efficient when fewer species dominate the microbial communities in the natural treatment system, regardless of oxygen levels and other environmental factors. By expanding our search for more microbial community BEF relationship scenarios we can further unravel how richness and evenness influence ecosystem processes in natural and humanized systems.