Download or read book Microbial Diversity and Carbon Cycling in San Francisco Bay Wetlands written by and published by . This book was released on 2014 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetland restoration efforts in San Francisco Bay aim to rebuild habitat for endangered species and provide an effective carbon storage solution, reversing land subsidence caused by a century of industrial and agricultural development. However, the benefits of carbon sequestration may be negated by increased methane production in newly constructed wetlands, making these wetlands net greenhouse gas (GHG) sources to the atmosphere. We investigated the effects of wetland restoration on below-ground microbial communities responsible for GHG cycling in a suite of historic and restored wetlands in SF Bay. Using DNA and RNA sequencing, coupled with real-time GHG monitoring, we profiled the diversity and metabolic potential of wetland soil microbial communities. The wetland soils harbor diverse communities of bacteria and archaea whose membership varies with sampling location, proximity to plant roots and sampling depth. Our results also highlight the dramatic differences in GHG production between historic and restored wetlands and allow us to link microbial community composition and GHG cycling with key environmental variables including salinity, soil carbon and plant species.
Download or read book Microbial Diversity in Restored Wetlands of San Francisco Bay written by and published by . This book was released on 2013 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetland ecosystems may serve as either a source or a sink for atmospheric carbon and greenhouse gases. This delicate carbon balance is influenced by the activity of belowground microbial communities that return carbon dioxide and methane to the atmosphere. Wetland restoration efforts in the San Francisco Bay-Delta region may help to reverse land subsidence and possibly increase carbon storage in soils. However, the effects of wetland restoration on microbial communities, which mediate soil metabolic activity and carbon cycling, are poorly studied. In an effort to better understand the underlying factors which shape the balance of carbon flux in wetland soils, we targeted the microbial communities in a suite of restored and historic wetlands in the San Francisco Bay-Delta region. Using DNA and RNA sequencing, coupled with greenhouse gas monitoring, we profiled the diversity and metabolic potential of the wetland soil microbial communities along biogeochemical and wetland age gradients. Our results show relationships among geochemical gradients, availability of electron acceptors, and microbial community composition. Our study provides the first genomic glimpse into microbial populations in natural and restored wetlands of the San Francisco Bay-Delta region and provides a valuable benchmark for future studies.
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.
Download or read book Biogeography of Nitrogen cycling Microbial Communities in San Francisco Bay written by Jessica Audrey Lee and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is an essential element to all of life on earth, and its bioavailability in the environment is governed by the activities of microorganisms that transform nitrogen species through redox processes such as denitrification, nitrification, and anammox. In this study, we survey the nitrogen-cycling microbial populations in the sediments of San Francisco Bay, using diverse DNA-based methods to address questions about microbial population dynamics across space, time, and the environmental gradients typical of an estuary. Our results include: a comparison of the abundance and community structures of nirK-type and nirS-type denitrifying bacteria; a novel use of next-generation sequencing for surveying functional gene diversity in the environment and a demonstration of machine-learning techniques for identifying ecological trends in that sequence data; and finally, deep sequencing of the 16S rRNA gene to survey and compare several N-cycling functional communities at once. Overall, we observe strong spatial structure in each nitrogen-cycling functional group as well as in the total microbial community, a strong response of all groups to salinity and to sediment nitrogen content, and marked differences in the temporal variability of communities in different sites. This survey of microbial diversity in San Francisco Bay contributes to our understanding of the processes influencing sediment biota in the estuary, and forms a foundation for future studies in the functioning of these nitrogen-cycling communities.
Download or read book Wetlands Microbes and the Carbon Cycle written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Susannah Tringe, who leads the Metagenome Program at the Department of Energy's Joint Genome Institute (JGI), a collaboration in which Berkeley Lab plays a leading role, takes us behind the scenes to show how DNA from unknown wild microbes is extracted and analyzed to see what role they play in the carbon cycle. Tringe collects samples of microbial communities living in the wetland muck of the Sacramento-San Joaquin River Delta, organisms that can determine how these wetlands store or release carbon.
Download or read book Anthropogenic Impacts on the Microbial Ecology and Function of Aquatic Environments written by Maurizio Labbate and published by Frontiers Media SA. This book was released on 2016-09-06 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic ecosystems are currently experiencing unprecedented levels of impact from human activities including over-exploitation of resources, habitat destruction, pollution and the influence of climate change. The impacts of these activities on the microbial ecology of aquatic environments are only now beginning to be defined. One of the many implications of environmental degradation and climate change is the geographical expansion of disease- causing microbes such as those from the Vibrio genus. Elevating sea surface temperatures correlate with increasing Vibrio numbers and disease in marine animals (e.g. corals) and humans. Contamination of aquatic environments with heavy metals and other pollutants affects microbial ecology with downstream effects on biogeochemical cycles and nutrient turnover. Also of importance is the pollution of aquatic environments with antibiotics, resistance genes and the mobile genetic elements that house resistance genes from human and animal waste. Such contaminated environments act as a source of resistance genes long after an antibiotic has ceased being used in the community. Environments contaminated with mobile genetic elements that are adapted to human commensals and pathogens function to capture new resistance genes for potential reintroduction back into clinical environments. This research topic encompasses these diverse topics and describes the affect(s) of human activity on the microbial ecology and function in aquatic environments and, describes methods of restoration and for modelling disturbances.
Download or read book Links between bacterial diversity and carbon cycling in the sea written by Laura Alonso Sáez and published by . This book was released on 2006 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book South San Francisco Wetland Paradox written by and published by . This book was released on 2016 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid urbanization and agriculture have led to loss of wetlands and their ecosystem services in the Sacramento-San Joaquin Delta and the San Francisco Bay. The United States Geological Survey (USGS), through their wetland restoration project on Twitchell Island, has established the potential of wetlands as carbon sinks. However, wetlands are also natural sources of methane (CH4), a greenhouse gas (GHG) 20X more potent than CO2. Interestingly, in most saline environments, sulfate-reducing bacteria are expected to outcompete methanogens resulting in decreased CH4 emission. But this is not the case with South San Francisco Bay (SSFB) salt ponds, formerly tidal marshes but later used for industrial salt production, which have been found to be major CH4 producers. This study aims to determine the microbial structure and source of substrates for methane production in restored, unrestored, and historical salt ponds in the SSFB area. To address this, we used metagenomics, biogeochemical approaches, and greenhouse gas measurements to identify differences in microbial communities and interactions in the three habitats. Our analysis revealed pond type-specific microbial communities and spatial heterogeneity. Furthermore, the samples share similar and distinct microbial communities along salinity gradients. Subsequently, these site-specific differences (1) are associated with different photosynthetic and metabolic pathways; (2) are weakly correlated with elevated methane flux as determined by methyl coenzyme M reductase subunit A (mcr A) gene relative abundance; (3) suggest glycine betaine as source of noncompetitive methylated subtrates. Overall, this study provides evidence that distinct microbial interactions lead to the establishment of environment-specific microbial pattern assemblies. This work can potentially contribute in monitoring, and implementing more efficient conservation, restoration, and management project of hypersaline wetlands.
Download or read book Core Microbiome written by Javid A. Parray and published by John Wiley & Sons. This book was released on 2022-05-10 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improve the quality and productivity of your crops through selecting positive and effective interactive core-microbiomes As microbial cells are present in overwhelming numbers in our soil, it is perhaps inevitable that microbes are found extensively in plant and animal tissue. The role of microbiomes on the regulation of physiological processes in animals has been extensively researched in recent years, but the overarching role of the plant microbiome has yet to be discovered. Core Microbiome: Improving Crop Quality and Productivity is an attempt to remediate some of that deficit, as the first book to summarize feature of microbial communities that make up the plant microbiome. There is substantial evidence that these communities are crucial in disease control, enhanced nutrient acquisition, and stress tolerance—a feature more important than ever due to climate change. A further focus on improving how core microbiomes interact so that they are both phenotypically and genotypically very adaptive and sustainable will allow the reader to improve the quality and productivity of crops so that they may be considered sustainable agriculture. Core Microbiome readers will also find: Descriptions of the basic structure of core microbiomes and their functions across various habitats New and cutting-edge trends and technological innovations highlighted that use core microbiomes to harness plant microbiome interaction The structure, classification, and biotechnological applications of aquatic core microbiomes, in addition to the material on plant microbiomes As a broad introduction to the interaction of core microbiome and plant productivity, Core Microbiome is ideal for researchers and scientists working in the field of environmental science, environmental microbiology, and waste management. Similarly, undergraduate and graduate students in these fields, as well as in agriculture, biotechnology, biosciences, and life and environmental sciences will also benefit from this work.
Download or read book A Blue Carbon Primer written by Lisamarie Windham-Myers and published by CRC Press. This book was released on 2018-11-16 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key features: Captures the historic context and recent developments in science and policy arenas that address the potential for coastal wetlands to be considered as significant contributors to carbon sequestration Links multiple levels of science (biogeochemistry, geomorphology, paleoclimate, etc.) with blue carbon concepts (science, policy, mapping, operationalization, economics) in a single compendium Concludes with a discussion of future directions which covers integrated scientific approaches, impending threats and specific gaps in current knowledge Includes 7 case studies from across the globe that demonstrate the benefits and challenges of blue carbon accounting Written by over 100 leading global blue carbon experts in science and policy. Blue Carbon has emerged as a term that represents the distinctive carbon stocks and fluxes into or out of coastal wetlands such as marshes, mangroves, and seagrasses. The Blue Carbon concept has rapidly developed in science literature and is highly relevant politically, as nations and markets are developing blue carbon monitoring and management tools and policies. This book is a comprehensive and current compendium of the state of the science, the state of maps and mapping protocols, and the state of policy incentives (including economic valuation of blue carbon), with additional sections on operationalizing blue carbon projects and 7 case studies with global relevance.
Download or read book YOUMARES 9 the Oceans Our Research Our Future written by Simon Jungblut and published by Springer Nature. This book was released on 2020-01-01 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book summarizes peer-reviewed articles and the abstracts of oral and poster presentations given during the YOUMARES 9 conference which took place in Oldenburg, Germany, in September 2018. The aims of this book are to summarize state-of-the-art knowledge in marine sciences and to inspire scientists of all career stages in the development of further research. These conferences are organized by and for young marine researchers. Qualified early-career researchers, who moderated topical sessions during the conference, contributed literature reviews on specific topics within their research field. .
Download or read book Climate Change and Estuaries written by Michael J. Kennish and published by CRC Press. This book was released on 2023-09-15 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is having an increasing impact on coastal, estuarine, and marine environments worldwide. This book provides state-of-the-art coverage of climate change effects on estuarine ecosystems from local, regional, and global perspectives. With editors among the most noted international scholars in coastal ecology and estuarine science and contributors who are world-class in their fields, the chapters in this volume consist of comprehensive studies in coastal, estuarine and marine sciences, climate change, and coastal management and provide an extensive international collection of data in tabular, illustrated, and narrative formats useful for coastal scientists, planners, and managers. Comprised of three sections: (1) physical-chemical aspects; (2) biological aspects; and (3) management aspects, the book not only examines climatic and non-climatic drivers of change affecting coastal, estuarine, and marine environments but also their interactions and effects on populations of organisms, communities, habitats, and ecosystem structure and function. Pulling together today’s most salient issues and key literature advances for those concerned with coastal management, it allows the reader to see across direct and indirect interactions among disciplinary and ecosystem boundaries. Climate Change and Estuaries meets the research needs of climate scientists, estuarine and marine biologists, marine chemists, marine geologists, hydrologists, and coastal engineers, while students, professors, administrators, and other professionals will also find it an exhaustive reference.
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.
Download or read book The Virginia Journal of Science written by Ruskin Skidmore Freer and published by . This book was released on 1999 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Bioinvasions Patterns Processes and Perspectives written by Judith Pederson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the global rate of marine introductions increases, exotic species exert greater economic and ecological impacts, affecting ecosystems and human health. The complexity of marine ecosystems challenges our ability to find easy solutions to prevention, management, and control of introductions. This book highlights issues of timely importance in marine bioinvasion science. Selected topics explore the potential evolutionary consequences and ecological impacts of introduced organisms, examine the feasibility of biological control, and describe patterns of introduction. These papers were presented at the Second International Conference on Marine Bioinvasions, which featured new marine invasion research from around the world. These papers should be of interest to scientists, students, and managers with an interest in marine bioinvasions and the application of knowledge to management concerns.
Download or read book Virginia Journal of Science written by Ruskin Skidmore Freer and published by . This book was released on 1998 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecosystems of California written by Harold Mooney and published by Univ of California Press. This book was released on 2016-01-19 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated reference and sourcebook for CaliforniaÕs remarkable ecological abundance provides an integrated assessment of each major ecosystem typeÑits distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of CaliforniaÕs ecological patterns and the history of the stateÕs various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the stateÕs ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of CaliforniaÕs environment and curious naturalists.
