The great extinctions what causes them and how they shape life. The great extinctions : what causes them and how they shape life in SearchWorks catalog 2019-01-26

The great extinctions what causes them and how they shape life Rating: 4,8/10 768 reviews

The Great Extinctions : What Causes Them and How They Shape Life by Norman MacLeod (2013, Hardcover) for sale online

the great extinctions what causes them and how they shape life

Geologists know that species extinction is as natural a process as species evolution. Macleod also provides a window into the to-and-fro of the scientific process where theories can migrate from the lunatic fringe to scientific orthodoxy as new observations come to light. Profusely and beautifully illustrated with figures, maps, charts, and period reconstructions. For more than a century scientists have tried to identify and understand the precise processes responsible for species extinction. For more than a century scientists have tried to identify and understand the precise processes responsible for species extinction.

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The great extinctions : what causes them and how they shape life in SearchWorks catalog

the great extinctions what causes them and how they shape life

I have undertaken and published extinction research using the fossil record as my primary source of data for most of my professional career. The first five chapters provide definitions, context, and historical perspective for the current understanding of stratigraphy, the fossil record, and the classification of life within an evolutionary framework. Overall, it is a good introduction to the great puzzle that is extinction study, impressive in its presentation of the scope of work already done and tantalizing to the curious with countless mysteries still unsolved. We know how overpriced books and textbooks can be so we ensure that students have access to those same books at affordable prices. Profusely and beautifully illustrated with figures, maps, charts, and period reconstructions. Population sizes of vertebrate species -- mammals, birds, reptiles, amphibians, and fish -- have declined by 52 percent over the last 40 years. Explores the history of this search, its subjects, its controversies, its current conclusions, and their implications for our efforts to preserve Earth's biodiversity.

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The Great Extinctions What Causes Them and How They Shape Life 1st edition

the great extinctions what causes them and how they shape life

MacLeod analyses eight extinction events beginning in the Precambrian Eon and working towards the near past. He examines a controversial subject with universal implications, which will fascinate a wide readership with interests in geology, prehistory, the environment, endangered species, conservation, wildlife, biodiversity, climate change, zoology, botany, invasive species and more. The concept of extinction elicits a deep emotional reaction in most people today, in no small way because we all share an intuitive concern about transformations being wrought in our increasingly unnatural environment. This has become even more important over the last decade as human populations and technology may now rival sea-level change, volcanic eruptions and asteroid impacts as an extinction mechanism. Like all participants in any human activity, I have a particular point of view that I believe conforms to the most reasonable interpretation of the greatest proportion of evidence currently to hand.

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The great extinctions : what causes them and how they shape life

the great extinctions what causes them and how they shape life

Description: 208 pages : color illustrations, color maps ; 26 cm Contents: What is extinction? Author Norman MacLeod covers this compelling topic in a concise, easy-to-read style with illustrations and diagrams throughout. Population sizes of vertebrate species -- mammals, birds, reptiles, amphibians, and fish -- have declined by 52 percent over the last 40 years. Leading paleontologist Norman MacLeod examines the controversies and conclusions and what they mean to the efforts to preserve Earth's biodiversity. Geologists know that species extinction is as natural a process as species evolution. Each chapter follows a format that allows readers to compare key elements from each event. He also reveals how, contrary to popular conception, species extinction is as natural a process as species evolution.

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The Great Extinctions: What Causes Them and How They Shape Life

the great extinctions what causes them and how they shape life

More than this though, I hope to convey some inkling of the excitement, the novelty, the frustration and the sense of grandeur that accompanies the study of one of natures most common processes, but also one of its deepest mysteries. The E-mail message field is required. He also creates new mathematical tools for studying plant and animal form and develops systems for automating the identification of species. The Great Extinctions is an essential choice for an informed contemporary readership. On at least five occasions in Earth's history, extinction intensities have spiked well above the normal level.

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The Great Extinctions: What Causes Them and How They Shape Life

the great extinctions what causes them and how they shape life

Will there be a sixth Extinction? This means that the overwhelming majority of species that have ever lived are extinct. Featuring the latest evidence on the subject and informative illustrations and diagrams throughout, The Great Extinctions is an absorbing guide to extinctions, their causes and their effects on evolutionary processes. Examining extinction over geological time, he compares ancient extinction events and uses them to predict future extinctions. Just complete the checkout process for this book and it will be shipped to you for immediate use. In The Great Extinctions leading palaeontologist Norman MacLeod reveals how, contrary to popular conception, species extinction is as natural a process as species evolution. He examines a controversial subject with universal implications, which will fascinate a wide readership with interests in geology, prehistory, the environment, endangered species, conservation, wildlife, biodiversity, climate change, zoology, botany, invasive species and more. Featuring the latest scientific evidence on the subject and informative illustrations and diagrams, The Great Extinctions is an easy-to-understand presentation of a complex and controversial subject.

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The Great Extinctions: What Causes Them and How They Shape Life

the great extinctions what causes them and how they shape life

Given the current state of knowledge about extinction as a phenomenon, what inferences for the contemporary and future management of our planet can, or should, we draw? Examining extinction over geological time, he compares ancient extinction events and uses them to predict what might happen in the future. Perhaps most importantly, how does a planet recover from devastations of such magnitude? I disagree with explanations offered by some of my colleagues and some of them disagree with me. Bibliography Includes bibliographical references and index. This means that the overwhelming majority of species that have ever lived are extinct. Search for related items by subject Subject:. The Great Extinctions explores the history of this search, its subjects, its controversies, its current conclusions, and their implications for our efforts to preserve Earth's biodiversity. This sufficiently informative book is profusely and beautifully illustrated with figures, maps, charts, and period reconstructions.

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The Great Extinctions : Norman MacLeod : 9781770853270

the great extinctions what causes them and how they shape life

What causes the sort of changes in the environment that drive extinction rates to these astonishing levels and over what timescales? Overall, it is a good introduction to the great puzzle that is extinction study, impressive in its presentation of the scope of work already done and tantalizing to the curious with countless mysteries still unsolved. The book concisely offers insight into the limits of knowledge within these fields, and these insights give non-experts some basis to evaluate competing opinions. Of the 1-3 billion species estimated to have appeared during Earth's history, only 12. Rather, it is to present the data extinction researchers of all persuasions work with as fairly as I can, mentioning all the nuances, caveats and assumptions that often get left out of presentations for a popular audience. It is the central issue for this generation.

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The great extinctions : what causes them and how they shape life (Book, 2015) [janagana.in]

the great extinctions what causes them and how they shape life

It is the central issue for this generation. What type of cataclysm does it take to extinguish 50, or 60, or 75, or 90 percent of all species on the land and in the sea, as has happened repeatedly in the Earth's distant past? For some readers, the book may be too technical, but for those who enjoy a challenging read, the book is an eye-opener. Scientific terminology from the geological timescale and biological classification can be daunting but excellent graphs, pictures, and diagrams help to clarify and enliven difficult subject matter. This has become even more important over the last decade as human populations and technology may now rival sea-level change, volcanic eruptions and asteroid impacts as an extinction mechanism. In total some 1,000 - 3,000 million species are estimated to have appeared during Earth's history, yet only 12.

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The Great Extinctions: What Causes Them and how They Shape Life

the great extinctions what causes them and how they shape life

It explains what extinction is, what causes it and whether it is preventable, and by comparing past geological extinction events, it aims to predict what will happen in the future. Raup 1991, Ward 1995, Alvarez 1997. It has been said that the secret to a long life is to have a chronic incurable disease and to keep treating it. As the debates about man's impact on the environment, about biodiversity and about conservation and extinction, continue, this book is essential reading for popular science enthusiasts and all those with an interest in natural history or environmental issues. Solving the species extinction puzzle has become even more important, even urgent, as human populations and technologies rival sea-level change, volcanic eruptions and asteroid impacts as an extinction mechanism. They also know that the rate of extinction in the geological past has not been constant.

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