The Rise and Fall of the Ediacaran Biota

The Rise and Fall of the Ediacaran Biota PDF Author: Patricia Vickers-Rich
Publisher: Geological Society of London
ISBN: 9781862392335
Category : Science
Languages : en
Pages : 476

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Book Description
The Proterozoic and early Phanerozoic was a time punctuated by a series of significant events in Earth history. Glaciations of global scale wracked the planet, interfingered with dramatic changes in oceanic and atmospheric chemistry and marked changes in continental configuration. It was during these dynamic and 'weedy' times that metazoans first appeared, diversified, culminating in the appearance of hard tissue skeletons and deep 'farming' of the marine substrate, in late Proterozoic and first few millions of years of the Phanerozoic. This book is the culmination of two symposia of UNESCO International Geological Correlation Project 493, one in Prato (Italy) in 2004, the second in Kyoto (Japan) in 2006. Both dealt specifically with the precise timing of physical events and teasing out of the effects which these changing environments, climates, global chemistry and palaeogeography had on the development and diversification of animals, culminating in the spectacular Ediacaran/Vendian faunas of the late Precambrian.

The Rise and Fall of the Ediacaran Biota

The Rise and Fall of the Ediacaran Biota PDF Author: Patricia Vickers-Rich
Publisher: Geological Society of London
ISBN: 9781862392335
Category : Science
Languages : en
Pages : 476

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Book Description
The Proterozoic and early Phanerozoic was a time punctuated by a series of significant events in Earth history. Glaciations of global scale wracked the planet, interfingered with dramatic changes in oceanic and atmospheric chemistry and marked changes in continental configuration. It was during these dynamic and 'weedy' times that metazoans first appeared, diversified, culminating in the appearance of hard tissue skeletons and deep 'farming' of the marine substrate, in late Proterozoic and first few millions of years of the Phanerozoic. This book is the culmination of two symposia of UNESCO International Geological Correlation Project 493, one in Prato (Italy) in 2004, the second in Kyoto (Japan) in 2006. Both dealt specifically with the precise timing of physical events and teasing out of the effects which these changing environments, climates, global chemistry and palaeogeography had on the development and diversification of animals, culminating in the spectacular Ediacaran/Vendian faunas of the late Precambrian.

Environmental Contaminants in Biota

Environmental Contaminants in Biota PDF Author: W. Nelson Beyer
Publisher: CRC Press
ISBN: 1420084062
Category : Science
Languages : en
Pages : 750

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Book Description
Examining tissue residues of contaminants in biota reveals the movement of contaminants within organisms and through food chains as well as the context for understanding and quantifying injuries to organisms and their communities. Yet tissue concentrations of some contaminants are especially challenging to interpret and the ability of today’s analytical chemists to provide reliable analytical data of most important environmental contaminants often surpasses the ability of ecotoxicologists to interpret those data. Offering guidance on the ecotoxicologically meaningful interpretation of tissue concentrations, Environmental Contaminants in Biota, Interpreting Tissue Concentrations, Second Edition is updated with current data and new ways of analyzing those data as well as additional contaminants not previously considered. Beginning with a history of wildlife toxicology and data interpretation, chapters cover a wide range of contaminants and their hazardous and lethal concentrations in various animals including DDT, Dioxins, PCBs, and PBDEs in aquatic organisms; methylmurcury, selenium, and trace metals in fishes and aquatic invertebrates; and pharmaceuticals and organic contaminants in marine mammals. The book considers the impact of Polychlorinated Biphenyls, Dibenzo-p-Dioxins and Dibenzofurans, and Polybrominated Diphenyl Ethers; cyclodiene; and other organochlorine pesticides in birds and mammals. Later chapters examine the effects and analysis of lead, cadmium, and radionuclides in biota. With thousands of published research papers reporting tissue concentrations each year, Environmental Contaminants in Biota, Interpreting Tissue Concentrations, Second Edition gives ecotoxicologists the ability to draw actionable value regarding the toxicological consequences of those concentrations and relate tissue concentrations quantitatively to injury: the core of ecotoxicology.

Pesticides in Stream Sediment and Aquatic Biota

Pesticides in Stream Sediment and Aquatic Biota PDF Author: Lisa H. Nowell
Publisher: CRC Press
ISBN: 9781439822708
Category : Technology & Engineering
Languages : en
Pages : 1046

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Book Description
More than 20 years after the ban of DDT and other organochlorine pesticides, pesticides continue to be detected in air, rain, soil, surface water, bed sediment, and aquatic and terrestrial biota throughout the world. Recent research suggests that low levels of some of these pesticides may have the potential to affect the development, reproduction,

Reconnaissance Investigation of Water Quality, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Dolores Project Area, Southwestern Colorado and Southeastern Utah, 1990-91

Reconnaissance Investigation of Water Quality, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Dolores Project Area, Southwestern Colorado and Southeastern Utah, 1990-91 PDF Author: David Louis Butler
Publisher:
ISBN:
Category : Dolores River (Colo. & Utah)
Languages : en
Pages : 138

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Book Description


Belowground Responses to Rising Atmospheric CO2: Implications for Plants, Soil Biota, and Ecosystem Processes

Belowground Responses to Rising Atmospheric CO2: Implications for Plants, Soil Biota, and Ecosystem Processes PDF Author: P. S. Curtis
Publisher: Springer Science & Business Media
ISBN: 9401708517
Category : Science
Languages : en
Pages : 379

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Book Description
As atmospheric CO2 increases there will almost certainly be alterations in soil carbon fluxes. It is likely that such alterations will be accompanied by changes in the partitioning of carbon between organic structures and to soil processes. These changes have the potential for further altering the structure and function of terrestrial ecosystems. While there has been increasing recognition of the importance of soil-mediated responses to global climate change, the nature and magnitude of these responses are not well understood. In an effort to expand our assessment of the significance of belowground responses to rising atmospheric CO2, a workshop has been organized that resulted in the peer-reviewed contributions that are contained in this volume.

Soil Structure/Soil Biota Interrelationships

Soil Structure/Soil Biota Interrelationships PDF Author: L. Brussaard
Publisher: Elsevier
ISBN: 148329028X
Category : Technology & Engineering
Languages : en
Pages : 846

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Book Description
Some pioneers in soil research such as Müller and Kubiëna were as much biologists as they were soil scientists and the legendary biologist Charles Darwin was foresighted in recognizing the earthworms as instrumental in reworking the soil, thereby forming what he called "vegetable mould". Still, soil science has largely been the realm of physicists and chemists over the past decades. Whatever the reason, this picture is rapidly changing. Until recently, research on the transport and transformation of elements in soil was often concerned with either soil biota/plant relationships or with soil structure/plant relationships, if the biota were considered at all, but very few studies explicitly took the interrelationships between soil structure and soil biota into account. The conference on Soil Structure/Soil Biota Interrelationships, held at Wageningen, The Netherlands, 24-28 November 1991, was meant to bridge that gap, focussing on methods of research, organized in three levels: features, processes and effects. The proceedings of the conference are testimony of the need to intertwine the biological, morphological, physical and chemical disciplines in soil research to understand better and forecast soil properties and processes as related to land use for agricultural and other purposes.This book should be of particular interest to soil scientists and ecologists who feel the need for a cross-disciplinary approach in soils research. It should also be a rich source of teaching material for courses in soil science and soil ecology at graduate level and above, with ample reference to studies on land use as related to agriculture and the environment.

Field Screening of Water, Soil, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Dolores Project and the Mancos River Basin, Southwestern Colorado, 1994

Field Screening of Water, Soil, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Dolores Project and the Mancos River Basin, Southwestern Colorado, 1994 PDF Author: David Louis Butler
Publisher:
ISBN:
Category : Dolores Project (U.S.)
Languages : en
Pages : 52

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Book Description


Areas Susceptible to Irrigation-induced Selenium Contamination of Water and Biota in the Western United States

Areas Susceptible to Irrigation-induced Selenium Contamination of Water and Biota in the Western United States PDF Author: R. L. Seiler
Publisher: Geological Survey (USGS)
ISBN:
Category : Science
Languages : en
Pages : 44

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Book Description


Trace Elements and Synthetic Organic Compounds in Biota and Streambed Sediment of the Western Lake Michigan Drainages, 1992-1995

Trace Elements and Synthetic Organic Compounds in Biota and Streambed Sediment of the Western Lake Michigan Drainages, 1992-1995 PDF Author:
Publisher:
ISBN:
Category : Organic compounds
Languages : en
Pages : 48

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Book Description


Reconnaissance Investigation of Water Quality, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Sun River Area, West-central Montana, 1986-87

Reconnaissance Investigation of Water Quality, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Sun River Area, West-central Montana, 1986-87 PDF Author: J. R. Knapton
Publisher:
ISBN:
Category : Irrigation water
Languages : en
Pages : 88

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Book Description