Download or read book The Proterozoic Biosphere written by J. William Schopf and published by Cambridge University Press. This book was released on 1992-06-26 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1992, The Proterozoic Biosphere was the first major study of the paleobiology of the Proterozoic Earth.
Download or read book The Proterozoic Biosphere written by Precambrian Paleobiology Research Group-Proterozoic and published by . This book was released on with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Proterozoic Biosphere written by J. William Schopf and published by . This book was released on 2011 with total page 1349 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemical Evolution of the Proterozoic Biosphere written by Katherine Audrey Doyle and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of Early Earth s Atmosphere Hydrosphere and Biosphere written by Stephen E. Kesler and published by Geological Society of America. This book was released on 2006-01-01 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The history of Earth's early atmosphere, hydrosphere, and biosphere, from Hadean through Proterozoic time, is one of geology's enduring puzzles. Ore deposits provide important insights into this history because they contain elements and minerals that are highly sensitive to the geochemical environment in which they form. Just what these minerals tell us remains a matter of considerable debate, however. When and how did life develop, an oxygen-rich atmosphere form, and sulfate dominate the ocean? This volume contains reports on these questions from both sides of the aisle for iron and manganese formations, uranium paleoplacers and hydrothermal deposits, and exhalative sulfides and oxides."--Publisher's website.
Download or read book The Ecology of Cyanobacteria written by B.A. Whitton and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacteria make a major contribution to world photosynthesis and nitrogen fixation, but are also notorious for causing nuisances such as dense and often toxic `blooms' in lakes and the ocean. The Ecology of Cyanobacteria: Their Diversity in Time and Space is the first book to focus solely on ecological aspects of these organisms. Its twenty-two chapters are written by some thirty authors, who are leading experts in their particular subject. The book begins with an overview of the cyanobacteria - or blue-green algae, for those who are not specialists - then looks at their diversity in the geological record and goes on to describe their ecology in present environments where they play important roles. Why is one of the key groups of organisms in the Precambrian still one of the most important groups of phototrophs today? The importance of ecological information for rational management and exploitation of these organisms for commercial and other practical purposes is also assessed. Accounts are provided of nuisances as well as the ecology of the commercially successful Spirulina and the role of cyanobacteria in ecosystem recovery from oil pollution. Many chapters include aspects of physiology, biochemistry, geochemistry and molecular biology where these help general understanding of the subject. In addition there are three chapters dealing specifically with molecular ecology. Thirty-two pages of colour photos incorporate about seventy views and light micrographs. These features make the book valuable to a wide readership, including biologists, microbiologists, geologists, water managers and environmental consultants. The book complements the highly successful The Molecular Biology of Cyanobacteria already published by Kluwer.
Download or read book Sulfur Isotope Fractionations in Biological Systems Insight Into the Proterozoic Biosphere written by David T. Johnston and published by . This book was released on 2007 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study focuses on developing a framework for interpreting isotopic fractionations in the four stable sulfur isotopes, with a special focus on microbial effects. Calculations of low temperature equilibrium fractionations between various sulfur species were performed and suggest a tightly constrained fractionation relationship between the isotopes. This work was followed by conducting a series of batch culture experiments with two prominent sulfur metabolisms: sulfate reduction and sulfur disproportionation. The results of these experiments illustrate that measurable deviations from the equilibrium predictions exist, and further serve to highlight the ability of these measurements to differentiate between fractionations produced by these two metabolisms. This is a distinction not possible from traditional isotope measurements alone (34S/32S). In addition, models constructed to describe these observations provide insight into the intra-workings of these metabolic pathways, with the most recent experiments suggesting that the traditionally accepted model for isotope fractionation produced by sulfate reducers be re-evaluated. The microbial fractionations were also used to calibrate global sulfur cycle box models. These models have been coupled with the measurement of natural samples to illustrate the onset of microbial disproportionation ∼800 million years earlier in Earth history than previously thought and to describe the sulfur cycle of three Proterozoic marine basins.
Download or read book Earth s Earliest Biosphere written by J. William Schopf and published by . This book was released on 1983 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Description for this book, Earth's Earliest Biosphere: Its Origin and Evolution, will be forthcoming.
Download or read book Biology written by and published by PediaPress. This book was released on with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fungal Community written by John Dighton and published by CRC Press. This book was released on 2017-03-16 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: "...a number of chapters provide excellent summaries of the modern methods available for studying fungal ecology, along with those more traditional methods that are still extremely valuable...overall it is a hugely valuable compendium of fungal ecology research. It is a must for the library shelf." -Lynne Boddy, Cardiff University, UK, Mycological Research, 2006 "These 44 chapters are an excellent starting point for anyone interested in fungal communities, in the broadest sense of the term. It is a book for dipping into...may be the last comprehensive treatment of fungal communities before the molecular revolution." -Meriel Jones, University of Liverpool, UK, Microbiology Today "... the scope of the work is tremendous. ... Excellent chapters providing overviews of methods ... provide a snap shot of the current approaches used to understand fungal communities at several levels of organization. This book should probably be on the shelf of every student of mycology, and many ecologists too. For all students, this book should be a valuable resource and source of inspiration." -Daniel Henk, Imperial College Faculty of Medicine, London, in Inoculum, Vol. 59, No. 3, May 2008 "Thorough taxonomic and subject indices further aid the reader in navigating through multiple authors’ treatments of subjects of interest." - Anthony Amend, Department of Botany, University of Hawaii at Manoa in Economic Botany, V. 61 In all subjects in science, new findings and the use of new technologies allow us to develop an ever-greater understanding of our world. Expanded and updated coverage in the fourth edition includes: Adds new sections on Integrating Genomics and Metagenomics into Community Analysis, Recent Advances in Fungal Endophyte Research, Fungi in the Built Environment, and Fungal Signaling and Communication Includes a broader treatment of fungal communities in natural ecosystems with in-depth coverage of fungal adaptations to stress and conservation Expands coverage of the influence of climate change on fungi and the role of fungi in organically polluted ecosystems Includes contributions from scientists from 20 nations to illustrate a true global approach for bridging gaps between ecological concepts and mycology
Download or read book Pre Mesozoic Ice Ages written by John C. Crowell and published by Geological Society of America. This book was released on 1999-01-01 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ancient ice ages are revealed by distinctive stratal facies that tell us much about the times of coolness and how the climate system works. Several strong ice ages were recorded in the late Paleozic time and during transitions from the Devonian in to the Carboniferous and from the Ordovician in to the Silurian. In Precambrian time, several are documented for both the late and early Proterozoic age. This title explores findings on the pre-Mesozoic ice ages, examining climate in relation to tectonobiogeochemical activities rooted in the changing earth-air-ocean system.
Download or read book Thermophiles Biodiversity Ecology and Evolution written by Anna-Louise Reysenbach and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: These are indeed exciting times to be a microbiologist. With one of the buzzwords of the past decade-"Biodiversity," and microbes are reveling in the attention as they represent by far most of the biodiversity on Earth. Microbes can thrive in almost any environment where there is an exploitable energy source, and, as a result, the possible existence of microbial life elsewhere in the solar system has stimulated the imaginations of many. Extremophiles have taken center stage in these investigations, and thermophiles have taken on the lead roles. Consequently, in the past decade there has been a surge of interest and research in the Ecology, Biology, and Biotechnology of microorganisms from thermal environments. Many of the foundations of thermophile research were laid in Yellowstone National Park, primarily by the research of Professor Thomas Brock's laboratory in the late 1960s and early 1970s. The upper temperature for life was debated, the first thermophilic archeum discovered (although it was only later shown to be an archeum by ribosomal cataloging), and the extremes of light, temperature, pH on the physiology of microorga nisms were explored. Interest in thermophiles increased steadily in the 1970s, and with the discovery of deep-sea hydrothermal vents in 1977, thermophilic research began its expo nential explosion. The development of Taq polymerase in the polymerase chain reaction (peR) focused interest on the biotechnological potential of thermophilic microorganisms and on the thermal features in Yellowstone National Park.
Download or read book The Influence of Cooperative Bacteria on Animal Host Biology written by Margaret J. McFall Ngai and published by Cambridge University Press. This book was released on 2005-08-22 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Broad-ranging and cross-disciplinary overview of the evolution and mechanisms of beneficial host-pathogen interactions.
Download or read book The Rise of Animals written by Mikhail A. Fedonkin and published by JHU Press. This book was released on 2007 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential resource for paleontologists, biologists, geologists, and teachers, The Rise of Animals is the best single reference on one of earth's most significant events.
Download or read book The Ecology of the Cambrian Radiation written by Robert Riding and published by Columbia University Press. This book was released on 2001 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambrian radiation was the explosive evolution of marine life that started 550,000,000 years ago. It ranks as one of the most important episodes in Earth history. This key event in the history of life on our planet changed the marine biosphere and its sedimentary environment forever, requiring a complex interplay of wide-ranging biologic and nonbiologic processes. The Ecology of the Cambrian Radiation offers a comprehensive and surprising picture of the Earth at that ancient time. The book contains contributions from thirty-three authors hailing from ten countries and will be of interest to paleontologists, geologists, biologists, and other researchers interested in the global Earth-life system.
Download or read book Interpretation of Biological and Environmental Changes Across the Neoproterozoic Cambrian Boundary written by L.E. Babcock and published by Gulf Professional Publishing. This book was released on 2005-11-30 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Neoproterozoic-Cambrian transition was a time of fundamental change in the biosphere. Between about 570 and 510 million years ago, marine organisms underwent considerable evolutionary innovation during a time of shifting ecological setting. This dramatic activity culminated in the first stratigraphic appearances of many recognizable groups of animals, an "event" often referred to as the "Cambrian explosion". In addition, there was a major change from a microbial mat-dominated sediment-water interface to a more extensively burrowed interface in shallow-marine settings. The early fossil record is a function not only of the rise or ecological diversification of marine organisms, but also the development of taphonomic and sedimentary conditions suitable for the preservation of mineralizing and nonmineralizing organisms. This book is devoted to an exploration of some of the emerging concepts and techniques used to develop greater insight into the early record of biologic diversification and the preservational record of that diversification during the Neoproterozoic-Cambrian transition. * Addresses key issues related to the Cambrian diversification of multicellular animals * Provocative new ideas about the factors involved in the exceptional preservation of fossils, with a balance between the development of ideas and hypothesis testing * Broad coverage of topics related to the Cambrian diversification of animals and the fossil record of that diversification; broad geographic coverage
Download or read book Nanostructures in Precambrian Fossils written by André Kempe and published by Herbert Utz Verlag. This book was released on 2003 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
