Species Problems And Beyond

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Species Problems and Beyond

Author : John S. Wilkins
Publisher : CRC Press
ISBN 13 : 1000549798
Total Pages : 383 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Species Problems and Beyond by : John S. Wilkins

Download or read book Species Problems and Beyond written by John S. Wilkins and published by CRC Press. This book was released on 2022-06-14 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Species Problems and Beyond offers a collection of up-to-date essays discussing from an interdisciplinary perspective the many ramifications of the ‘Species Problem.’ The authors represent experts in the philosophy of biology, in species-level evolutionary investigations, and in biodiversity studies and conservation. Some of the topics addressed concern the context sensitivity of the term ‘species’; species as individuals, processes, natural kinds, or as ‘operative concepts’; species delimitation in the age of Big (genomic) Data; and taxonomic inflation and its consequences for conservation strategies. The carefully edited volume will be an invaluable resource for philosophers of biology and evolutionary biologists alike. – Olivier Rieppel, Rowe Family Curator of Evolutionary Biology, Negaunee Integrative Research Center, Field Museum, USA Species, or ‘the Species Problem’, is a topic in science, in the philosophy of science, and in general philosophy. In fact, it encompasses many aspects of the same problem, and these are dealt with in this volume. Species are often thought of as fundamental units of biological matter to be used in ecology, conservation, classification, and biodiversity. The chapters in this book present opposing views on the current philosophical and conceptual issues of the Species Problem in biology. Divided into four sections, Concepts and Theories, Practice and Methods, Ranks and Trees and Names, and Metaphysics and Epistemologies, the book is authored by biologists, philosophers, and historians, many leaders in their fields. Topics include ontology of species, definitions of both species category and units, species rank, speciation issues, nomenclature, ecology, and species conservation. Species Problems and Beyond aims to clarify the contemporary issues of the Species Problem. It is ideal for use in upper-level seminars and courses in Evolutionary Biology, Philosophy of Science, Philosophy of Biology, Systematics and Taxonomy, and Phylogenetics/Cladistics, and for any scholar in these fields.

Beyond the War on Invasive Species

Author : Tao Orion
Publisher : Chelsea Green Publishing
ISBN 13 : 1603585648
Total Pages : 272 pages
Book Rating : 4.6/5 (35 download)

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Book Synopsis Beyond the War on Invasive Species by : Tao Orion

Download or read book Beyond the War on Invasive Species written by Tao Orion and published by Chelsea Green Publishing. This book was released on 2015-06-17 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive species are everywhere, from forests and prairies to mountaintops and river mouths. Their rampant nature and sheer numbers appear to overtake fragile native species and forever change the ecosystems that they depend on. Concerns that invasive species represent significant threats to global biodiversity and ecological integrity permeate conversations from schoolrooms to board rooms, and concerned citizens grapple with how to rapidly and efficiently manage their populations. These worries have culminated in an ongoing “war on invasive species,” where the arsenal is stocked with bulldozers, chainsaws, and herbicides put to the task of their immediate eradication. In Hawaii, mangrove trees (Avicennia spp.) are sprayed with glyphosate and left to decompose on the sandy shorelines where they grow, and in Washington, helicopters apply the herbicide Imazapyr to smooth cordgrass (Spartina alterniflora) growing in estuaries. The “war on invasive species” is in full swing, but given the scope of such potentially dangerous and ecologically degrading eradication practices, it is necessary to question the very nature of the battle. Beyond the War on Invasive Species offers a much-needed alternative perspective on invasive species and the best practices for their management based on a holistic, permaculture-inspired framework. Utilizing the latest research and thinking on the changing nature of ecological systems, Beyond the War on Invasive Species closely examines the factors that are largely missing from the common conceptions of invasive species, including how the colliding effects of climate change, habitat destruction, and changes in land use and management contribute to their proliferation. Beyond the War on Invasive Species demonstrates that there is more to the story of invasive species than is commonly conceived, and offers ways of understanding their presence and ecosystem effects in order to make more ecologically responsible choices in land restoration and biodiversity conservation that address the root of the invasion phenomenon. The choices we make on a daily basis—the ways we procure food, shelter, water, medicine, and transportation—are the major drivers of contemporary changes in ecosystem structure and function; therefore, deep and long-lasting ecological restoration outcomes will come not just from eliminating invasive species, but through conscientious redesign of these production systems.

The Species Problem

Author :
Publisher :
ISBN 13 : 9781003346296
Total Pages : 0 pages
Book Rating : 4.3/5 (462 download)

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Book Synopsis The Species Problem by :

Download or read book The Species Problem written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The general notion of species is one of the most fundamental in biology. But an idea of species is also one of the most persistent unresolved obsessions of biologists, philosophers and theoreticians. This new book investigates the multifaceted problem species as a "conceptual envelope" of that notion. Contemporary conceptualists and evolutionary epistemology allow for a fresh look by analyzing the framework of history viewed as changes ordered by changing philosophical-scientific contexts. In this analysis, the species problem is characterized in a pluralistic non-trivial manner, in contrast to a more monistic "accepted view." Key Features Provides new insights into the persistent species "problem." Focuses on conceptual history and identifies pivotal landmarks in the history of the concept of species. Argues for a scientific consistency of species pluralism. Discusses the "evolving species-hood" in the context of new essentialism. Related Titles * Wilkins, J. S, et al., eds. Species Problems and Beyond: Contemporary Issues in Philosophy and Practice (ISBN 978-1-0322-2147-2) * Mishler, B. D. What, if anything, are species? (ISBN 978-1-4987-1454-9) * Wilkins, J. S. Species: The Evolution of the Idea, Second Edition (ISBN 978-1-1380-5574-2) * Sigwart, J. D. What Species Mean: A User's Guide to the Units of Biodiversity (ISBN 978-1-4987-9937-9)

The Species Problem

Author : Igor Ya. Pavlinov
Publisher : CRC Press
ISBN 13 : 1000833208
Total Pages : 333 pages
Book Rating : 4.0/5 (8 download)

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Book Synopsis The Species Problem by : Igor Ya. Pavlinov

Download or read book The Species Problem written by Igor Ya. Pavlinov and published by CRC Press. This book was released on 2023-02-24 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: The general notion of species is one of the most fundamental in biology. But an idea of species is also one of the most persistent unresolved obsessions of biologists, philosophers and theoreticians. This new book investigates the multifaceted problem species as a "conceptual envelope" of that notion. Contemporary conceptualists and evolutionary epistemology allow for a fresh look by analyzing the framework of history viewed as changes ordered by changing philosophical-scientific contexts. In this analysis, the species problem is characterized in a pluralistic non-trivial manner, in contrast to a more monistic "accepted view." Key Features Provides new insights into the persistent species "problem." Focuses on conceptual history and identifies pivotal landmarks in the history of the concept of species. Argues for a scientific consistency of species pluralism. Discusses the "evolving species-hood" in the context of new essentialism. Related Titles • Wilkins, J. S, et al., eds. Species Problems and Beyond: Contemporary Issues in Philosophy and Practice (ISBN 978-1-0322-2147-2) • Mishler, B. D. What, if anything, are species? (ISBN 978-1-4987-1454-9) • Wilkins, J. S. Species: The Evolution of the Idea, Second Edition (ISBN 978-1-1380-5574-2) • Sigwart, J. D. What Species Mean: A User's Guide to the Units of Biodiversity (ISBN 978-1-4987-9937-9)

The Species Problem

Author : Richard A. Richards
Publisher : Cambridge University Press
ISBN 13 : 1139488295
Total Pages : 247 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis The Species Problem by : Richard A. Richards

Download or read book The Species Problem written by Richard A. Richards and published by Cambridge University Press. This book was released on 2010-07-01 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is long-standing disagreement among systematists about how to divide biodiversity into species. Over twenty different species concepts are used to group organisms, according to criteria as diverse as morphological or molecular similarity, interbreeding and genealogical relationships. This, combined with the implications of evolutionary biology, raises the worry that either there is no single kind of species, or that species are not real. This book surveys the history of thinking about species from Aristotle to modern systematics in order to understand the origin of the problem, and advocates a solution based on the idea of the division of conceptual labor, whereby species concepts function in different ways - theoretically and operationally. It also considers related topics such as individuality and the metaphysics of evolution, and how scientific terms get their meaning. This important addition to the current debate will be essential for philosophers and historians of science, and for biologists.

Species Concepts in Biology

Author : Frank E. Zachos
Publisher : Springer
ISBN 13 : 3319449664
Total Pages : 220 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Species Concepts in Biology by : Frank E. Zachos

Download or read book Species Concepts in Biology written by Frank E. Zachos and published by Springer. This book was released on 2016-10-05 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frank E. Zachos offers a comprehensive review of one of today’s most important and contentious issues in biology: the species problem. After setting the stage with key background information on the topic, the book provides a brief history of species concepts from antiquity to the Modern Synthesis, followed by a discussion of the ontological status of species with a focus on the individuality thesis and potential means of reconciling it with other philosophical approaches. More than 30 different species concepts found in the literature are presented in an annotated list, and the most important ones, including the Biological, Genetic, Evolutionary and different versions of the Phylogenetic Species Concept, are discussed in more detail. Specific questions addressed include the problem of asexual and prokaryotic species, intraspecific categories like subspecies and Evolutionarily Significant Units, and a potential solution to the species problem based on a hierarchical approach that distinguishes between ontological and operational species concepts. A full chapter is dedicated to the challenge of delimiting species by means of a discrete taxonomy in a continuous world of inherently fuzzy boundaries. Further, the book outlines the practical ramifications for ecology and evolutionary biology of how we define the species category, highlighting the danger of an apples and oranges problem if what we subsume under the same name (“species”) is in actuality a variety of different entities. A succinct summary chapter, glossary and annotated list of references round out the coverage, making the book essential reading for all biologists looking for an accessible introduction to the historical, philosophical and practical dimensions of the species problem.

Species Concepts and Phylogenetic Theory

Author : Quentin D. Wheeler
Publisher : Columbia University Press
ISBN 13 : 0231506627
Total Pages : 410 pages
Book Rating : 4.2/5 (315 download)

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Book Synopsis Species Concepts and Phylogenetic Theory by : Quentin D. Wheeler

Download or read book Species Concepts and Phylogenetic Theory written by Quentin D. Wheeler and published by Columbia University Press. This book was released on 2000-06-22 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: No question in theoretical biology has been more perennially controversial or perplexing than "What is a species?" Recent advances in phylogenetic theory have called into question traditional views of species and spawned many concepts that are currently competing for general acceptance. Once the subject of esoteric intellectual exercises, the "species problem" has emerged as a critically important aspect of global environmental concerns. Completion of an inventory of biodiversity, success in conservation, predictive knowledge about life on earth, management of material resources, formulation of scientifically credible public policy and law, and more depend upon our adoption of the "right" species concept. Quentin D. Wheeler and Rudolf Meier present a debate among top systematic biology theorists to consider the strengths and weaknesses of five competing concepts. Debaters include (1) Ernst Mayr (Biological Species Concept), (2) Rudolf Meier and Rainer Willmann (Hennigian species concept), (3) Brent Mishler and Edward Theriot (one version of the Phylogenetic Species Concept), (4) Quentin Wheeler and Norman Platnick (a competing version of the Phylogenetic Species Concept), and (5) E. O. Wiley and Richard Mayden (the Evolutionary Species Concept). Each author or pair of authors contributes three essays to the debate: first, a position paper with an opening argument for their respective concept of species; second, a counterpoint view of the weakness of competing concepts; and, finally, a rebuttal of the attacks made by other authors. This unique and lively debate format makes the comparative advantages and disadvantages of competing species concepts clear and accessible in a single book for the first time, bringing to light numerous controversies in phylogenetic theory, taxonomy, and philosophy of science that are important to a wide audience. Species Concepts and Phylogenetic Theory will meet a need among scientists, conservationists, policy-makers, and students of biology for an explicit, critical evaluation of a large and complex literature on species. An important reference for professionals, the book will prove especially useful in classrooms and discussion groups where students may find a concise, lucid entrée to one of the most complex questions facing science and society.

The Species Problem

Author : Igor Pavlinov
Publisher : BoD – Books on Demand
ISBN 13 : 953510957X
Total Pages : 293 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis The Species Problem by : Igor Pavlinov

Download or read book The Species Problem written by Igor Pavlinov and published by BoD – Books on Demand. This book was released on 2013-02-06 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book includes collection of theoretical papers dealing with the species problem, which is among most fundamental issues in biology. The principal topics are: consideration of the species problem from the standpoint of modern non-classical science paradigm, with emphasis on its conceptual status presuming its analysis within certain conceptual framework; evolutionary emergence of the species as discrete unit of certain level of generality; epistemological consideration of the species as a particular explanatory hypotheses, with respective revised concepts of biodiversity and conservation; considerations of evolutionary and phylogenomic species concepts as candidates for the universal one; re-appraisal of the biological species concept based on the "friend-foe" recognition system; species delimitation approach using multi-locus coalescent-based method; a re-consideration of the Darwin's species concept.

The New Wild

Author : Fred Pearce
Publisher : Beacon Press
ISBN 13 : 0807039551
Total Pages : 266 pages
Book Rating : 4.8/5 (7 download)

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Book Synopsis The New Wild by : Fred Pearce

Download or read book The New Wild written by Fred Pearce and published by Beacon Press. This book was released on 2016-04-05 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Named one of the best books of 2015 by The Economist A provocative exploration of the “new ecology” and why most of what we think we know about alien species is wrong For a long time, veteran environmental journalist Fred Pearce thought in stark terms about invasive species: they were the evil interlopers spoiling pristine “natural” ecosystems. Most conservationists and environmentalists share this view. But what if the traditional view of ecology is wrong—what if true environmentalists should be applauding the invaders? In The New Wild, Pearce goes on a journey across six continents to rediscover what conservation in the twenty-first century should be about. Pearce explores ecosystems from remote Pacific islands to the United Kingdom, from San Francisco Bay to the Great Lakes, as he digs into questionable estimates of the cost of invader species and reveals the outdated intellectual sources of our ideas about the balance of nature. Pearce acknowledges that there are horror stories about alien species disrupting ecosystems, but most of the time, the tens of thousands of introduced species usually swiftly die out or settle down and become model eco-citizens. The case for keeping out alien species, he finds, looks increasingly flawed. As Pearce argues, mainstream environmentalists are right that we need a rewilding of the earth, but they are wrong if they imagine that we can achieve that by reengineering ecosystems. Humans have changed the planet too much, and nature never goes backward. But a growing group of scientists is taking a fresh look at how species interact in the wild. According to these new ecologists, we should applaud the dynamism of alien species and the novel ecosystems they create. In an era of climate change and widespread ecological damage, it is absolutely crucial that we find ways to help nature regenerate. Embracing the new ecology, Pearce shows us, is our best chance. To be an environmentalist in the twenty-first century means celebrating nature’s wildness and capacity for change.

Beyond Relativism

Author : Robert C. Hunt
Publisher : Rowman Altamira
ISBN 13 : 9780759110793
Total Pages : 204 pages
Book Rating : 4.1/5 (17 download)

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Book Synopsis Beyond Relativism by : Robert C. Hunt

Download or read book Beyond Relativism written by Robert C. Hunt and published by Rowman Altamira. This book was released on 2007 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book tackles the problem of comparing phenomena- social roles, forms of activities, institutions- across cultures.

Beyond the War on Invasive Species

Author : Tao Orion
Publisher : Chelsea Green Publishing
ISBN 13 : 160358563X
Total Pages : 274 pages
Book Rating : 4.6/5 (35 download)

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Book Synopsis Beyond the War on Invasive Species by : Tao Orion

Download or read book Beyond the War on Invasive Species written by Tao Orion and published by Chelsea Green Publishing. This book was released on 2015 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: "What if we looked beyond the notion of invasive species as enemies, and instead harnessed them for beneficiall uses? Beyond the War on Invasive Species offers a bold alternative to chemical and intensive eradication efforts--a holistic, permaculture-inspired approach to managing entire ecosystems. Author Tao Orion makes a compelling case that we need to manage invasive species for beneficial uses, such as food, medicine, compost, nectar for bees, bioremediation, and more. Invasive species are too often perceived as threats, resulting in an ongoing war that unleashes a steady arsenal of bulldozers, chainsaws, and herbicides with the goal of complete destruction. Meanwhile, the colliding effects of climate change, habitat destruction, and changes in land use and management practices go overlooked as possible causes of this proliferation. Orion urges readers to look beyond the idealized notion of restoration, and to embrace nurturing practices that can create conditions in which all life can thrive." -- From back cover.

Science and the Endangered Species Act

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309052912
Total Pages : 289 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Science and the Endangered Species Act by : National Research Council

Download or read book Science and the Endangered Species Act written by National Research Council and published by National Academies Press. This book was released on 1995-10-13 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Endangered Species Act (ESA) is a far-reaching law that has sparked intense controversies over the use of public lands, the rights of property owners, and economic versus environmental benefits. In this volume a distinguished committee focuses on the science underlying the ESA and offers recommendations for making the act more effective. The committee provides an overview of what scientists know about extinctionâ€"and what this understanding means to implementation of the ESA. Habitatâ€"its destruction, conservation, and fundamental importance to the ESAâ€"is explored in detail. The book analyzes: Concepts of speciesâ€"how the term "species" arose and how it has been interpreted for purposes of the ESA. Conflicts between species when individual species are identified for protection, including several case studies. Assessment of extinction risk and decisions under the ESAâ€"how these decisions can be made more effectively. The book concludes with a look beyond the Endangered Species Act and suggests additional means of biological conservation and ways to reduce conflicts. It will be useful to policymakers, regulators, scientists, natural-resource managers, industry and environmental organizations, and those interested in biological conservation.

Beyond Words

Author : Carl Safina
Publisher : Macmillan
ISBN 13 : 0805098887
Total Pages : 480 pages
Book Rating : 4.8/5 (5 download)

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Book Synopsis Beyond Words by : Carl Safina

Download or read book Beyond Words written by Carl Safina and published by Macmillan. This book was released on 2015-07-14 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a world where we usually measure animals by human standards, prize-winning author and MacArthur Fellow Carl Safina takes us inside their lives and minds, witnessing their profound capacity for perception, thought and emotion, showing why the word "it" is often inappropriate as we discover who they really are. Weaving decades of observations of actual families of free-living creatures with new discoveries about brain functioning, Carl Safina's narrative breaches many commonly held boundaries between humans and other animals. InBeyond Words, readers travel the wilds of Africa to visit some of the last great elephant gatherings, then follow wolves of Yellowstone National Park sort out the aftermath of their personal tragedy, then plunge into the astonishingly peaceful society of killer whales living in waters of the Pacific Northwest. We spend quality time, too, with dogs and falcons and ravens; and consider how the human mind originated. In his wise and passionate new book, Safina delivers a graceful examination of how animals truly think and feel, which calls to question what really does—and what should—make us human.

Beyond the Creative Species

Author : Oliver Bown
Publisher : MIT Press
ISBN 13 : 0262361760
Total Pages : 417 pages
Book Rating : 4.2/5 (623 download)

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Book Synopsis Beyond the Creative Species by : Oliver Bown

Download or read book Beyond the Creative Species written by Oliver Bown and published by MIT Press. This book was released on 2021-02-23 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary introduction to the field of computational creativity, analyzing the impact of advanced generative technologies on art and music. As algorithms get smarter, what role will computers play in the creation of music, art, and other cultural artifacts? Will they be able to create such things from the ground up, and will such creations be meaningful? In Beyond the Creative Species, Oliver Bown offers a multidisciplinary examination of computational creativity, analyzing the impact of advanced generative technologies on art and music. Drawing on a wide range of disciplines, including artificial intelligence and machine learning, design, social theory, the psychology of creativity, and creative practice research, Bown argues that to understand computational creativity, we must not only consider what computationally creative algorithms actually do, but also examine creative artistic activity itself.

Problem-Solving in Conservation Biology and Wildlife Management

Author : James P. Gibbs
Publisher : John Wiley & Sons
ISBN 13 : 1444359819
Total Pages : 354 pages
Book Rating : 4.4/5 (443 download)

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Book Synopsis Problem-Solving in Conservation Biology and Wildlife Management by : James P. Gibbs

Download or read book Problem-Solving in Conservation Biology and Wildlife Management written by James P. Gibbs and published by John Wiley & Sons. This book was released on 2011-08-31 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This set of exercises has been created expressly for students and teachers of conservation biology and wildlife management who want to have an impact beyond the classroom. The book presents a set of 32 exercises that are primarily new and greatly revised versions from the book's successful first edition. These exercises span a wide range of conservation issues: genetic analysis, population biology and management, taxonomy, ecosystem management, land use planning, the public policy process and more. All exercises discuss how to take what has been learned and apply it to practical, real-world issues. Accompanied by a detailed instructor’s manual and a student website with software and support materials, the book is ideal for use in the field, lab, or classroom. Also available: Fundamentals of Conservation Biology, 3rd edition (2007) by Malcolm L Hunter Jr and James Gibbs, ISBN 9781405135450 Saving the Earth as a Career: Advice on Becoming a Conservation Professional (2007) by Malcolm L Hunter Jr, David B Lindenmayer and Aram JK Calhoun, ISBN 9781405167611

Strategic planning for species conservation : a handbook, version 1.0

Author : IUCN Species Survival Commission. Species Conservation Planning Task Force
Publisher : IUCN
ISBN 13 : 2831711258
Total Pages : 123 pages
Book Rating : 4.8/5 (317 download)

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Book Synopsis Strategic planning for species conservation : a handbook, version 1.0 by : IUCN Species Survival Commission. Species Conservation Planning Task Force

Download or read book Strategic planning for species conservation : a handbook, version 1.0 written by IUCN Species Survival Commission. Species Conservation Planning Task Force and published by IUCN. This book was released on 2008 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Beyond the Tragedy in Global Fisheries

Author : D. G. Webster
Publisher : MIT Press
ISBN 13 : 0262534738
Total Pages : 483 pages
Book Rating : 4.2/5 (625 download)

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Book Synopsis Beyond the Tragedy in Global Fisheries by : D. G. Webster

Download or read book Beyond the Tragedy in Global Fisheries written by D. G. Webster and published by MIT Press. This book was released on 2017-09-08 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of how responsive governance has shaped the evolution of global fisheries in cyclical patterns of depletion and rebuilding dubbed the “management treadmill.” The oceans are heavily overfished, and the greatest challenges to effective fisheries management are not technical but political and economic. In this book, D. G. Webster describes how the political economy of fisheries has evolved and highlights patterns that are linked to sustainable transitions in specific fisheries. Grounded in the concept of responsive governance, Webster's interdisciplinary analysis goes beyond the conventional view of the "tragedy of the commons.” Using her Action Cycle/Structural Context framework, she maps long-running patterns that cycle between depletion and rebuilding in a process that she terms the management treadmill. Webster documents the management treadmill in settings that range from small coastal fishing communities to international fisheries that span entire oceans. She identifies the profit disconnect, in which economic incentives are out of sync with sustainable use, and the power disconnect, in which those who experience the costs of overexploitation are politically marginalized. She examines how these disconnects shaped the economics of expansion and documents how political systems failed to prevent related cycles of serial resource depletion. Webster also traces the increasing use of restrictive management in response to worsening fisheries crises and the emergence of new, noncommercial interests that demand greater management but also generate substantial conflict. She finds that the management treadmill is speeding up with population growth and economic development, and so concludes that sustainable fisheries can only exist within a sustainable global economic system.