Nature Matrix

Author : Ivette Perfecto
Publisher : Earthscan
ISBN 13 : 1849770131
Total Pages : 257 pages
Book Rating : 4.32/5 ( download)

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Download or read book Nature's Matrix written by Ivette Perfecto and published by Earthscan. This book was released on 2009 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landscapes are frequently seen as fragments of natural habitat surrounded by a 'sea' of agriculture. But recent ecological theory shows that the nature of these fragments is not nearly as important for conservation as is the nature of the matrix of agriculture that surrounds them. Local extinctions from conservation fragments are inevitable and must be balanced by migrations if massive extinction is to be avoided. High migration rates only occur in what the authors refer to as 'high quality' matrices, which are created by alternative agroecological techniques, as opposed to the industrial monocultural model of agriculture. The authors argue that the only way to promote such high quality matrices is to work with rural social movements. Their ideas are at odds with the major trends of some of the large conservation organizations that emphasize targeted land purchases of protected areas. They argue that recent advances in ecological research make such a general approach anachronistic and call, rather, for solidarity with the small farmers around the world who are currently struggling to attain food sovereignty.Nature's Matrix proposes a radically new approach to the conservation of biodiversity based on recent advances in the science of ecology plus political realities, particularly in the world's tropical regions.

Author : Robert Michael Pyle
Publisher : Catapult
ISBN 13 : 1640092765
Total Pages : 289 pages
Book Rating : 4.61/5 ( download)

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Download or read book Nature Matrix written by Robert Michael Pyle and published by Catapult. This book was released on 2020-09-15 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nature Matrix is a gathering of some of Robert Michael Pyle’s most significant, original, and timely expressions of a life immersed in the natural world, in all its splendor, power, and peril Nature Matrix: New and Selected Essays contains sixteen pieces that encompass the philosophy, ethic, and aesthetic of Robert Michael Pyle. The essays range from Pyle’s experience as a young national park ranger in the Sierra Nevada to the streets of Manhattan; from the suburban jungle to the tangles of the written word; and from the phenomenon of Bigfoot to that of the Big Year—a personal exercise in extreme birding and butterflying. They include deep profiles of John Jacob Astor I and Vladimir Nabokov, as well as excursions into wild places with teachers, children, and writers. The nature of real wilderness in modern times comes under Pyle’s lens, as does reconsideration of his trademark concept, “the extinction of experience”—maybe the greatest threat of alienation from the living world that we face today. Nature Matrix shows a way back toward possible integration with the world, as it plumbs the range and depth of experience in one lucky life lived in close connection to the physical earth and its denizens. This collection brings together the thoughts and hopes of one of our most widely read and respected natural philosophers as he seeks to summarize a life devoted to conservation.

Author : Ivette Perfecto
Publisher : Routledge
ISBN 13 : 113657414X
Total Pages : 258 pages
Book Rating : 4.46/5 ( download)

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Download or read book Nature's Matrix written by Ivette Perfecto and published by Routledge. This book was released on 2009-09-18 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landscapes are frequently seen as fragments of natural habitat surrounded by a 'sea' of agriculture. But recent ecological theory shows that the nature of these fragments is not nearly as important for conservation as is the nature of the matrix of agriculture that surrounds them. Local extinctions from conservation fragments are inevitable and must be balanced by migrations if massive extinction is to be avoided. High migration rates only occur in what the authors refer to as 'high quality' matrices, which are created by alternative agroecological techniques, as opposed to the industrial monocultural model of agriculture. The authors argue that the only way to promote such high quality matrices is to work with rural social movements. Their ideas are at odds with the major trends of some of the large conservation organizations that emphasize targeted land purchases of protected areas. They argue that recent advances in ecological research make such a general approach anachronistic and call, rather, for solidarity with the small farmers around the world who are currently struggling to attain food sovereignty. Nature's Matrix proposes a radically new approach to the conservation of biodiversity based on recent advances in the science of ecology plus political realities, particularly in the world's tropical regions.

Author : Robert Michael Pyle
Publisher : Catapult
ISBN 13 : 1640092773
Total Pages : 240 pages
Book Rating : 4.78/5 ( download)

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Download or read book Nature Matrix written by Robert Michael Pyle and published by Catapult. This book was released on 2020-09-15 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nature Matrix is a gathering of some of Robert Michael Pyle’s most significant, original, and timely expressions of a life immersed in the natural world, in all its splendor, power, and peril Nature Matrix: New and Selected Essays contains sixteen pieces that encompass the philosophy, ethic, and aesthetic of Robert Michael Pyle. The essays range from Pyle’s experience as a young national park ranger in the Sierra Nevada to the streets of Manhattan; from the suburban jungle to the tangles of the written word; and from the phenomenon of Bigfoot to that of the Big Year—a personal exercise in extreme birding and butterflying. They include deep profiles of John Jacob Astor I and Vladimir Nabokov, as well as excursions into wild places with teachers, children, and writers. The nature of real wilderness in modern times comes under Pyle’s lens, as does reconsideration of his trademark concept, “the extinction of experience”—maybe the greatest threat of alienation from the living world that we face today. Nature Matrix shows a way back toward possible integration with the world, as it plumbs the range and depth of experience in one lucky life lived in close connection to the physical earth and its denizens. This collection brings together the thoughts and hopes of one of our most widely read and respected natural philosophers as he seeks to summarize a life devoted to conservation.

Author : Sir Norman Lockyer
Publisher :
ISBN 13 :
Total Pages : 972 pages
Book Rating : 4.32/5 ( download)

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Download or read book Nature written by Sir Norman Lockyer and published by . This book was released on 1886 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 538 pages
Book Rating : 4.69/5 ( download)

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Download or read book Nature London written by and published by . This book was released on 1871 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 856 pages
Book Rating : 4.62/5 ( download)

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Download or read book Nature written by and published by . This book was released on 1885 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Nathaniel Johnston
Publisher : Springer Nature
ISBN 13 : 3030528111
Total Pages : 482 pages
Book Rating : 4.19/5 ( download)

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Download or read book Introduction to Linear and Matrix Algebra written by Nathaniel Johnston and published by Springer Nature. This book was released on 2021-05-19 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook emphasizes the interplay between algebra and geometry to motivate the study of linear algebra. Matrices and linear transformations are presented as two sides of the same coin, with their connection motivating inquiry throughout the book. By focusing on this interface, the author offers a conceptual appreciation of the mathematics that is at the heart of further theory and applications. Those continuing to a second course in linear algebra will appreciate the companion volume Advanced Linear and Matrix Algebra. Starting with an introduction to vectors, matrices, and linear transformations, the book focuses on building a geometric intuition of what these tools represent. Linear systems offer a powerful application of the ideas seen so far, and lead onto the introduction of subspaces, linear independence, bases, and rank. Investigation then focuses on the algebraic properties of matrices that illuminate the geometry of the linear transformations that they represent. Determinants, eigenvalues, and eigenvectors all benefit from this geometric viewpoint. Throughout, “Extra Topic” sections augment the core content with a wide range of ideas and applications, from linear programming, to power iteration and linear recurrence relations. Exercises of all levels accompany each section, including many designed to be tackled using computer software. Introduction to Linear and Matrix Algebra is ideal for an introductory proof-based linear algebra course. The engaging color presentation and frequent marginal notes showcase the author’s visual approach. Students are assumed to have completed one or two university-level mathematics courses, though calculus is not an explicit requirement. Instructors will appreciate the ample opportunities to choose topics that align with the needs of each classroom, and the online homework sets that are available through WeBWorK.

Author : Jinho Baik
Publisher : American Mathematical Soc.
ISBN 13 : 0821848410
Total Pages : 461 pages
Book Rating : 4.18/5 ( download)

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Download or read book Combinatorics and Random Matrix Theory written by Jinho Baik and published by American Mathematical Soc.. This book was released on 2016-06-22 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last fifteen years a variety of problems in combinatorics have been solved in terms of random matrix theory. More precisely, the situation is as follows: the problems at hand are probabilistic in nature and, in an appropriate scaling limit, it turns out that certain key quantities associated with these problems behave statistically like the eigenvalues of a (large) random matrix. Said differently, random matrix theory provides a “stochastic special function theory” for a broad and growing class of problems in combinatorics. The goal of this book is to analyze in detail two key examples of this phenomenon, viz., Ulam's problem for increasing subsequences of random permutations and domino tilings of the Aztec diamond. Other examples are also described along the way, but in less detail. Techniques from many different areas in mathematics are needed to analyze these problems. These areas include combinatorics, probability theory, functional analysis, complex analysis, and the theory of integrable systems. The book is self-contained, and along the way we develop enough of the theory we need from each area that a general reader with, say, two or three years experience in graduate school can learn the subject directly from the text.

Author : American Museum of Natural History
Publisher :
ISBN 13 :
Total Pages : 614 pages
Book Rating : 4.35/5 ( download)

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Download or read book Bulletin of the American Museum of Natural History written by American Museum of Natural History and published by . This book was released on 1909 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises articles on geology, paleontology, mammalogy, ornithology, entomology, and anthropology.