Download or read book Standing between Life and Extinction written by David L. Propst and published by University of Chicago Press. This book was released on 2021-02-15 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: North American deserts—lands of little water—have long been home to a surprising diversity of aquatic life, from fish to insects and mollusks. With European settlement, however, water extraction, resource exploitation, and invasive species set many of these native aquatic species on downward spirals. In this book, conservationists dedicated to these creatures document the history of their work, the techniques and philosophies that inform it, and the challenges and opportunities of the future. A precursor to this book, Battle Against Extinction, laid out the scope of the problem and related conservation activities through the late 1980s. Since then, many nascent conservation programs have matured, and researchers have developed new technologies, improved and refined methods, and greatly expanded our knowledge of the myriad influences on the ecology and dynamics of these species. Standing between Life and Extinction brings the story up to date. While the future for some species is more secure than thirty years ago, others are less fortunate. Calling attention not only to iconic species like the razorback sucker, Gila trout, and Devils Hole pupfish, but also to other fishes and obscure and fascinating invertebrates inhabiting intermittent aquatic habitats, this book explores the scientific, social, and political challenges of preserving these aquatic species and their habitats amid an increasingly charged political discourse and in desert regions characterized by a growing human population and rapidly changing climate.

Download or read book Volcanoes to Vineyards written by Jim E. O'Connor and published by Geological Society of America. This book was released on 2009 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume contains guides for 34 geological field trips offered in conjunction with the October 2009 GSA Annual Meeting in Portland, Oregon. Showcasing the region's geological diversity, the peer-reviewed papers included here span topics ranging from accreted terrains and mantle plumes to volcanoes, floods, and vineyard terroir. Locations visited throughout Oregon, Washington, and Idaho encompass Astoria to Zillah. More than just a series of maps, the accompanying descriptions, observations, and conclusions offer new insights to the geologic processes and history of the Pacific Northwest - insights that will inspire readers to put their boots on the evidence as they develop their own understanding of this remarkable and dynamic corner of the world."--Publisher's description.

Download or read book Endangered Species Many Factors Affect the Length of Time to Recover Select Species written by and published by DIANE Publishing. This book was released on 2006 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1996 IUCN Red List of Threatened Animals written by Ulf Gärdenfors and published by IUCN. This book was released on 1996 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1994 IUCN Red List of Threatened Animals was a major advance on its predecessors in clarity of layout and amount of information presented. This is taken further in the 1996 edition, which is also the first global compilation to use the complete new IUCN Red List category system.

Download or read book Hidden Tibet written by Sergius L. Kuzmin and published by Library of Tibetan Works and Archives. This book was released on 2011-01-01 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tibet is a land of mysteries. It is not only about religion and occultism: its history remains largely hidden. This book disproves some of the erroneous views on the history and religion of the Tibetans. Tibet has never been a part of China. At the time when China was an inalienable part of the Mongolian Yuan Empire and Manchu Qing Empire, Tibet was a separate country dependent on the Mongol and Manchu emperors, but never lost its statehood. A widespread view that Tibet was an integral part of neighboring empires is related to an ancient Chinese concept of the emperor's universal power. Chinese claims to the "legacy" of the Mongol and Manchu empires are unfounded. Incorporating the name of the state into the "dynasty of China" concept ties sovereign states of other nations to Chinese dynastic history. The inclusion of Tibet into the People's Republic of China was not legitimate. Tibet is an occupied country. This book traces the history of Tibetan statehood from ancient times to our days, describes the life of the Tibetans at the times of Feudalism and Socialism, the coercive inclusion of Tibet into People's Republic of China, the suppression of the national liberation movement, the Cultural Revolution, and subsequent reforms. Many pictures and data concerning these events are being published for the first time. The book has garnered much interest in Russia, particularly in academic and political science circles.

Download or read book Deity Mantra and Wisdom written by Patrul Rinpoche and published by Shambhala Publications. This book was released on 2020-02-25 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection contains four of the most cherished Tibetan Buddhist commentaries on the practices of visualization, mantra recitation, and meditative absorption—elements that form the core of development stage meditation, one of the most important practices of Buddhist Tantra. The texts within this volume—Ladder to Akaniṣṭha, Clarifying the Difficult Points in the Development Stage, The Four Stakes That Bind the Life-Force, and Husks of Unity—are among the most widely studied commentaries on this topic and have formed the basis for spiritual study and practice for centuries. In these eloquent and inspiring translations, Jigme Lingpa, Patrul Rinpoche, and Getse Mahāpaṇḍita explain the fundamental philosophy of the development stage, illuminating its profound insights into the nature of reality and how to utilize these insights through the practice of meditation.

Download or read book Foragers of the Terminal Pleistocene in North America written by Renee Beauchamp Walker and published by U of Nebraska Press. This book was released on 2007-01-01 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: These essays cast new light on Paleoindians, the first settlers of North America. Recent research strongly suggests that big-game hunting was but one of the subsistence strategies the first humans in the New World employed and that they also relied on foraging and fishing.

Download or read book Subject Headings written by Library of Congress. Subject Cataloging Division and published by . This book was released on 1951 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Homophones and Homographs written by and published by McFarland. This book was released on 2014-11-01 with total page 861 pages. Available in PDF, EPUB and Kindle. Book excerpt: This expanded fourth edition defines and cross-references 9,040 homophones and 2,133 homographs (up from 7,870 and 1,554 in the 3rd ed.). As the most comprehensive compilation of American homophones (words that sound alike) and homographs (look-alikes), this latest edition serves well where even the most modern spell-checkers and word processors fail--although rain, reign, and rein may be spelled correctly, the context in which these words may appropriately be used is not obvious to a computer.

Download or read book Tibetan Thangka Painting written by David Paul Jackson and published by Shambhala Publications. This book was released on 1984 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the techniques of the sacred art of Tibetan scroll painting.

Download or read book Manual of Instructions written by Ontario. Fisheries Branch and published by . This book was released on 1985-01-01 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The survey procedures which are outlined in this manual aredesigned to acquire basic knowledge of the chemical, physical andbiological conditions of the lakes and streams in Ontario. Themanual has been written to standardize the many methods andtechniques which have been devised over the past several decades. Lakes and streams are dealt with separately. Identification, location definition, mapping, chemical and physical parameters, sampling, documentation and preservation of fish andinvertebrates, and completion of reports are covered.

Download or read book Management and Ecology of River Fisheries written by Ian G. Cowx and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this edited work, international experts in fisheries management and ecology review and appraise the status of river fisheries, assessment methodology, constraints on development, issues and options regarding management and associated problems in both temperate and tropical countries. Recommendations are made to improve management and an attempt is made to provide guidelines for formulating policy, for planning methodology and for evaluating future activities. Assessment of fish community structure and dynamics. Factors constraining stock recruitment. Fish habitat requirements. Instream flow needs. Impact of water resource schemes. Rehabilitation of river fisheries. Enhancement of fish stocks. Exploitation of stocks. Management of migratory fish stocks. Conservation of endangered species. Integrated river management. Bioeconomic issues. Legislation. Multinational management of rivers. Case studies.

Download or read book Bird Friendly Building Design written by Christine Sheppard and published by . This book was released on 2015-11-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Irrigation Fundamentals written by George H. Hargreaves and published by Water Resources Publication. This book was released on 1998 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: IRRIGATION FUNDAMENTALS is a comprehensive text on the basic principles and practices of applied agricultural irrigation. Written over a period of more than 10 years, it is based on the authors'' extensive experience in farming, consulting, research, teaching, and other related agricultural activities. The book is for use by teachers of introductory courses in irrigation, farmers who have some basic technical knowledge, and for administrators who need a general understanding of irrigation as an aid for policy decisions in water resource development and planning. Various factors that influence crop yield and production including climate, fertility, water, drainage, and agronomic practices are addressed. The various irrigation methods such as border, basin, contour, furrow, sub, sprinkle, and drip or trickle are described; and conditions are given for selection of the appropriate method to use. Recent developments and new technology are included herein when they have obvious practical applications, but for the most part the material presented in this book is based on well established principles and practices. Much of the content is very practical and much is essentially nontechnical. Nevertheless, some of the material covered in this book goes beyond the basic concepts in an attempt to better describe the relationships and techniques employed by irrigation scientists and irrigation engineers.From the Preface: The future of the world depends very much on how we manage natural resources. Since the year 1900 there has been a ninefold increase in global carbon emissions from burning fossil fuels, and the world population has increased about 3.7 times in this century. Vast areas of forests have been destroyed, and irrigated lands now produce 40% of the food supply. Due to depletion of groundwater reserves and an increase in population, irrigated area per capita is declining. Consequently, the irrigation of additional alluvial lands is a strategic necessity for all of humankind. Much of the alluvial lands cannot be made productive without prior development of water resources through flood control, drainage, and irrigation. The production of electricity through hydropower and the production of alcohol fuel from irrigated crops, as has been practiced for many years in Brazil, can slow the increase in carbon emissions. Such diverse developments are typically not separable; rather, they must be considered as integral parts of a comprehensive development plan. The conservation of natural resources and increasing productivity of irrigated lands are also strategic necessities. Much of the current technology is highly transferable and crop yields can be significantly increased on lands already under irrigation.The authors have worked in many countries in connection with resource inventories, teaching, and the planning, development and use of irrigation as a tool for increasing production and providing employment. They have written extensively and have been honored for their achievements. They have considerable experience with everything from primitive low-technology irrigation developments to highly developed irrigation in the USA and in dozens of countries around the world. Both of the authors have dedicated their careers to teaching, research, and consulting in agricultural irrigation and water resources development and planning. It is their hope and expectation that this book will provide incentives for investigating and documenting land and water resources, improving development, increasing crop yields, conserving resources, and improving the environment. From the Table of Contents:Chapt. 1 - INTRODUCTION: Irrigation Fundamentals: - - A Definition of Irrigation - - Statistical Perspectives of Agricultural IrrigationChapt. 2 - FACTORS INFLUENCING CROP PRODUCTION: - - Introduction - - Temperature, Radiation, and Evaporative Potential - - Climate Change - - Soil Fertility and Fertilizers - - Water Availability and Distribution - - Soil Aeration and Drainage - - Plant Density, Spacing and Leaf Area Index - - Crop VarietyChapt. 3 - AGRICULTURAL SOILS: - - Introduction - - Soil Texture and Structure - - Soil Classification and Evaluation - - Bureau of Reclamation Land Classification - - Soil Age and Topography - - Soil Chemistry - - Infiltration Rates - - Soil-Water Relationships - - Equations for Soil Water Content - - Soil Water Potential - - Measuring Soil Water ContentChapt. 4 - EVALUATING IRRIGATION RESOURCES: - - Introduction - - Climate - - Hydrology - - Human and Other Factors - - Integrated DevelopmentChapt. 5 - IRRIGATION METHODS: - - Introduction - - Graded Border Irrigation - - Basin Irrigation - - Contour Levees - - Furrow Irrigation - - Sub-Irrigation - - Sprinkle Irrigation - - Drip or Trickle Irrigation - - Selecting an Irrigation Method - - Land Grading and Leveling - - Laser-Leveling Equipment and Practices - - Computing Diagonal Slopes - - Irrigation System EvaluationChapt. 6 - CROP WATER REQUIREMENTS: - - Introduction - - Direct Methods - - Indirect Methods - - Potential Evaporation - - Reference Evapotranspiration - - Extraterrestrial Solar Radiation - - Irrigation Requirements - - Crop CoefficientsChapt. 7 - IRRIGATION SCHEDULING: - - Introduction - - Allowable Water Depletion - - Monitoring Soil Water - - Scheduling Irrigations - - Rice Irrigation

Download or read book Molecular Approaches to the Study of the Ocean written by K.E. Cooksey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine biological science is now studied at the molecular level and although research scientists depend on information gained using molecular techniques, there is no book explaining the philosophy of this approach. Molecular Approaches to the Study of the Ocean introduces the reasons why molecular technology is such a powerful tool in the study of the oceans, describing the types of techniques that can be used, why they are useful and gives examples of their application. Molecular biological techniques allow phylogenetic relationships to be explored in a manner that no macroscopic method can; although the book deals with organisms near the base of the marine food web, the ideas can be used in studies of macroorganisms as well as those in freshwater environments.

Download or read book Trinity River Division written by United States. Bureau of Reclamation and published by . This book was released on 1970 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook on Marine Environment Protection written by Markus Salomon and published by Springer. This book was released on 2018-01-31 with total page 1001 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is the first of its kind to provide a clear, accessible, and comprehensive introduction to the most important scientific and management topics in marine environmental protection. Leading experts discuss the latest perspectives and best practices in the field with a particular focus on the functioning of marine ecosystems, natural processes, and anthropogenic pressures. The book familiarizes readers with the intricacies and challenges of managing coasts and oceans more sustainably, and guides them through the maze of concepts and strategies, laws and policies, and the various actors that define our ability to manage marine activities. Providing valuable thematic insights into marine management to inspire thoughtful application and further study, it is essential reading for marine environmental scientists, policy-makers, lawyers, practitioners and anyone interested in the field.