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Microbial Communities in Coastal Sediments

2021-06-02 Science
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Release : 2021-06-02
Genre : Science
Kind : eBook
Book Rating : 668/5 ( reviews)

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Book Synopsis Microbial Communities in Coastal Sediments by : Salom Gnana Thanga Vincent

Download or read book Microbial Communities in Coastal Sediments written by Salom Gnana Thanga Vincent. This book was released on 2021-06-02. Available in PDF, EPUB and Kindle. Book excerpt: A concise reference on the structural composition and function of microbial communities in coastal environments, especially in relation to natural and anthropogenic impacts. Microbial Communities in Coastal Sediments presents twenty years of coastal microbiology research, grounding it as a vital development in the field of microbial ecology. It is the first book to focus exclusively on the complex microbial ecology and its function in rest of the marine environment. The book outlines the structure, function, and assessment of microbial communities in marine sediments while exploring practical methods of assessment. It is an invaluable resource to aquatic microbiologists, marine ecologists, marine microbiologists, aquatic researchers, and graduate students in this field. Microbial Communities in Coastal Sediments begins with an examination of nutrient sources in the coastal context with a focus on organic matter inputs. The quantity and quality of organic matter in coastal sediments and their impacts on the composition and formation of microbial communities is discussed. The book explores the consequences of anthropogenic changes and human activity on microbial ecology and nutrient cycling. Sections on nutrient availability, green house gas production and biodegradation of persistent organic pollutants provide essential details. Molecular research techniques and methods for assessing microbial community structure and function in coastal sediments are also covered. Explores the interplay of physicochemical and biological features of coastal ecosystems on microbial community composition to provide a template of comparison for field research Includes unique figures, schematic diagrams and photographs related to microbial processes of coastal ecosystem to clearly represent different aspects of microbial structure and functions Provides analytical methods and detailed molecular techniques for qualitative and quantitative analyses of microbial community structure

Microbial Communities of Coastal Eutrophic Systems

2021-12-31 Science
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Release : 2021-12-31
Genre : Science
Kind : eBook
Book Rating : 073/5 ( reviews)

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Book Synopsis Microbial Communities of Coastal Eutrophic Systems by : Savvas Genitsaris

Download or read book Microbial Communities of Coastal Eutrophic Systems written by Savvas Genitsaris. This book was released on 2021-12-31. Available in PDF, EPUB and Kindle. Book excerpt:

Interactions Between Macro- and Microorganisms in Marine Sediments

2005-01-14 Science
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Release : 2005-01-14
Genre : Science
Kind : eBook
Book Rating : 74X/5 ( reviews)

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Book Synopsis Interactions Between Macro- and Microorganisms in Marine Sediments by :

Download or read book Interactions Between Macro- and Microorganisms in Marine Sediments written by . This book was released on 2005-01-14. Available in PDF, EPUB and Kindle. Book excerpt: Marine sediments support complex interactions between macro-and microorganisms that have global implications for carbon and nutrient cycles. What is the state of the science on such interactions from coastal and estuarine environments to the deep sea? How does such knowledge effect environmental management? And what does future research hold in store for scientists, engineers, resource managers, and educators?Interactions between Macro- and Microorganisms in Marine Sediments responds to these questions, and more, by focusing on:? Interactions between plants, microorganisms, and marine sediment? Interactions between animals, microorganisms, and marine sediment? Interactions between macro- and microorganisms and the structuring of benthic communities? Impact of macrobenthic activity on microbially-mediated geochemical cycles in sediments? Conceptual and numeric models of diagenesis that incorporate interactions between macro- and microorganismsHere is an authoritative overview of the research, experimentation and modeling approaches now in use in our rapidly evolving understanding of life in marine sediments.

The Unified Neutral Theory of Biodiversity and Biogeography

2011-06-27 Science
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Release : 2011-06-27
Genre : Science
Kind : eBook
Book Rating : 529/5 ( reviews)

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Book Synopsis The Unified Neutral Theory of Biodiversity and Biogeography by : Stephen P. Hubbell

Download or read book The Unified Neutral Theory of Biodiversity and Biogeography written by Stephen P. Hubbell. This book was released on 2011-06-27. Available in PDF, EPUB and Kindle. Book excerpt: Despite its supreme importance and the threat of its global crash, biodiversity remains poorly understood both empirically and theoretically. This ambitious book presents a new, general neutral theory to explain the origin, maintenance, and loss of biodiversity in a biogeographic context. Until now biogeography (the study of the geographic distribution of species) and biodiversity (the study of species richness and relative species abundance) have had largely disjunct intellectual histories. In this book, Stephen Hubbell develops a formal mathematical theory that unifies these two fields. When a speciation process is incorporated into Robert H. MacArthur and Edward O. Wilson's now classical theory of island biogeography, the generalized theory predicts the existence of a universal, dimensionless biodiversity number. In the theory, this fundamental biodiversity number, together with the migration or dispersal rate, completely determines the steady-state distribution of species richness and relative species abundance on local to large geographic spatial scales and short-term to evolutionary time scales. Although neutral, Hubbell's theory is nevertheless able to generate many nonobvious, testable, and remarkably accurate quantitative predictions about biodiversity and biogeography. In many ways Hubbell's theory is the ecological analog to the neutral theory of genetic drift in genetics. The unified neutral theory of biogeography and biodiversity should stimulate research in new theoretical and empirical directions by ecologists, evolutionary biologists, and biogeographers.

Diversity and Functional Potential of Microbial Communities in the Hydrocarbon Contaminated Land-sea Continuum

2021
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Release : 2021
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Book Synopsis Diversity and Functional Potential of Microbial Communities in the Hydrocarbon Contaminated Land-sea Continuum by : Élise Châtillon

Download or read book Diversity and Functional Potential of Microbial Communities in the Hydrocarbon Contaminated Land-sea Continuum written by Élise Châtillon. This book was released on 2021. Available in PDF, EPUB and Kindle. Book excerpt: Microbial communities in marine coastal sediment provide ecosystem services by driving essential processes including biogeochemical cycles, organic matter and pollutant degradation. In the land-sea continuum, we hypothesize that the microbial community structure and function inhabiting marine coastal ecosystems are influenced by soil runoff they receive. In order to verify the hypothesis, an experimental ecology approach was set up mimicking soil runoff within hydrocarbon (HC) contaminated land-sea continuum in microcosms. The community diversity analysis provided evidences of community coalescence (i.e. mixing of entire communities and their surrounding environments) when marine coastal sediments receive terrigenous inputs via soil runoff. The functional potential of sediment microbial communities and the removal of HC were unchanged by the terrigenous inputs. The gene variants (GVs) composition and the co-occurrence network of sediment microbial communities receiving soil runoff were modified. However, GVs encode the same function found in sediment microbial communities not influenced by soil runoff, revealing functional redundancy. Amplicon sequence variants (ASVs) and GVs were specifically associated to sediment receiving terrigenous inputs, and thus identified as indicators of community coalescence. Soil runoff was demonstrated as a plasmid reservoir, suggesting possible horizontal gene transfer mediated by plasmid during coalescence event. Our results show that community coalescence play crucial role in the organization of microbial communities in marine coastal sediment. Better understanding the coalescence mechanisms will provide useful information for the monitoring and management of coastal environment affected by human land-based activities.

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