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Punctuated Equilibrium

2009-06-30 Science
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Release : 2009-06-30
Genre : Science
Kind : eBook
Book Rating : 847/5 ( reviews)

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Book Synopsis Punctuated Equilibrium by : Stephen Jay GOULD

Download or read book Punctuated Equilibrium written by Stephen Jay GOULD. This book was released on 2009-06-30. Available in PDF, EPUB and Kindle. Book excerpt: In 1972 Stephen Jay Gould took the scientific world by storm with his paper on punctuated equilibrium. Challenging a core assumption of Darwin's theory of evolution, it launched the controversial idea that the majority of species originates in geological moments (punctuations) and persists in stasis. Now, thirty-five years later, Punctuated Equilibrium offers his only book-length testament on a theory he fiercely promoted, repeatedly refined, and tirelessly defended.

Punctuated Equilibrium

2007-05-31 Science
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Release : 2007-05-31
Genre : Science
Kind : eBook
Book Rating : 441/5 ( reviews)

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Book Synopsis Punctuated Equilibrium by : Stephen Jay Gould

Download or read book Punctuated Equilibrium written by Stephen Jay Gould. This book was released on 2007-05-31. Available in PDF, EPUB and Kindle. Book excerpt: In 1972 Stephen Jay Gould took the scientific world by storm with his paper on punctuated equilibrium, written with Niles Eldredge. Challenging a core assumption of Darwin's theory of evolution, it launched the career of one of the most influential evolutionary biologists of our time--perhaps the best known since Darwin. Now, thirty-five years later, and five years after his untimely death, Punctuated Equilibrium (originally published as the central chapter of Gould's masterwork, The Structure of Evolutionary Theory) offers his only book-length testament on an idea he fiercely promoted, repeatedly refined, and tirelessly defended. Punctuated equilibrium holds that the great majority of species originate in geological moments (punctuations) and persist in stasis. The idea was hotly debated because it forced biologists to rethink entrenched ideas about evolutionary patterns and processes. But as Gould shows here in his typically exhaustive coverage, the idea has become the foundation of a new view of hierarchical selection and macroevolution. What emerges strikingly from this book is that punctuated equilibrium represents a much broader paradigm about the nature of change--a worldview that may be judged as a distinctive and important movement within recent intellectual history. Indeed we may now be living within a punctuation, and our awareness of what this means may be the enduring legacy of one of America's best-loved scientists.

Punctuated Equilibrium and the Dynamics of U.S. Environmental Policy

2008-10-01 Nature
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Release : 2008-10-01
Genre : Nature
Kind : eBook
Book Rating : 742/5 ( reviews)

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Book Synopsis Punctuated Equilibrium and the Dynamics of U.S. Environmental Policy by : Robert Repetto

Download or read book Punctuated Equilibrium and the Dynamics of U.S. Environmental Policy written by Robert Repetto. This book was released on 2008-10-01. Available in PDF, EPUB and Kindle. Book excerpt: Although many environmental policy issues remain deadlocked for decades with little movement, sometimes breakthroughs occur abruptly. Why do deadlocks persist? Why do major policy shifts occur infrequently? Is it possible to judge when policies are ripe for change?This book presents new empirical evidence that the punctuated equilibrium theory of policy dynamics fits the facts of environmental policy change and can explain how stable policies can suddenly unravel in discontinuous change. The distinguished contributors to the volume apply the theory to a wide range of important environmental and resource issues and assess case histories in water, forestry, fisheries, public lands, energy and climate some of which resulted in breakthroughs, others in stalemate. They offer insights into the political conditions and tactics that are likely to produce these disparate outcomes. Every professional, activist, and student concerned with promoting (or resisting) change in environmental and natural resources policies will find this up-to-date book an invaluable guide.

The Structure of Evolutionary Theory

2002-03-21 Science
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Release : 2002-03-21
Genre : Science
Kind : eBook
Book Rating : 925/5 ( reviews)

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Book Synopsis The Structure of Evolutionary Theory by : Stephen Jay Gould

Download or read book The Structure of Evolutionary Theory written by Stephen Jay Gould. This book was released on 2002-03-21. Available in PDF, EPUB and Kindle. Book excerpt: The world’s most revered and eloquent interpreter of evolutionary ideas offers here a work of explanatory force unprecedented in our time—a landmark publication, both for its historical sweep and for its scientific vision. With characteristic attention to detail, Stephen Jay Gould first describes the content and discusses the history and origins of the three core commitments of classical Darwinism: that natural selection works on organisms, not genes or species; that it is almost exclusively the mechanism of adaptive evolutionary change; and that these changes are incremental, not drastic. Next, he examines the three critiques that currently challenge this classic Darwinian edifice: that selection operates on multiple levels, from the gene to the group; that evolution proceeds by a variety of mechanisms, not just natural selection; and that causes operating at broader scales, including catastrophes, have figured prominently in the course of evolution. Then, in a stunning tour de force that will likely stimulate discussion and debate for decades, Gould proposes his own system for integrating these classical commitments and contemporary critiques into a new structure of evolutionary thought. In 2001 the Library of Congress named Stephen Jay Gould one of America’s eighty-three Living Legends—people who embody the “quintessentially American ideal of individual creativity, conviction, dedication, and exuberance.” Each of these qualities finds full expression in this peerless work, the likes of which the scientific world has not seen—and may not see again—for well over a century.

International Norms and Decision Making

2003 Education
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Release : 2003
Genre : Education
Kind : eBook
Book Rating : 900/5 ( reviews)

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Book Synopsis International Norms and Decision Making by : Gary Goertz

Download or read book International Norms and Decision Making written by Gary Goertz. This book was released on 2003. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a punctuated equilibrium framework for understanding the nature of policy decision-making by governments as well as a theory of the creation, functioning, and evolution of international norms and institutions.

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