Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Effects Of Grazing Intensity Upon Vegetation full books in PDF, epub, and Kindle. Read online Effects Of Grazing Intensity Upon Vegetation ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Wallace M. Johnson
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Effects of Grazing Intensity Upon Vegetation written by Wallace M. Johnson and published by . This book was released on 1953 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bert Zuckerman
Publisher : Elsevier
ISBN 13 : 0323147038
Total Pages : 529 pages
Book Rating : 4.3/5 (231 download)
Download or read book Plant Parasitic Nematodes written by Bert Zuckerman and published by Elsevier. This book was released on 2012-12-02 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Parasitic Nematodes, Volume III provides a comprehensive discussion of the different advances in plant nematology. This includes biochemical techniques to taxonomy and innovation in transmission and scanning electron microscopy technology. It explains a broadened basis for understanding nematode physiology and behavior and the sensory mechanisms that govern nematode actions and plant host-nematode interactions. The book discusses the development of modern approaches to the evaluation and reduction of crop losses. The emphasis of this volume is on plant parasites and insights gained through research on other nematodes. In particular, the book explains the anatomical, developmental, behavioral, and genetic studies on the free-living nematode Cenorhabditis elegans, which is a widely used laboratory model for examining various biological problems. The information provided by various researches on C. elegans increases our understanding about the relevance of nematodes to general biological processes in higher organisms, including man. The book is divided into 19 chapters which cover the following concepts of plant nematology: biochemistry, cytochemistry, and genetics; morphology and function; host-parasite relations; and evaluation and control of crop losses. The present volume is an excellent reference for students, lecturers, and research professionals in plant parasitology and related fields.
Author : Samuel M. Scheiner
Publisher : University of Chicago Press
ISBN 13 : 0226736865
Total Pages : 416 pages
Book Rating : 4.2/5 (267 download)
Download or read book The Theory of Ecology written by Samuel M. Scheiner and published by University of Chicago Press. This book was released on 2011-07-15 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite claims to the contrary, the science of ecology has a long history of building theories. Many ecological theories are mathematical, computational, or statistical, though, and rarely have attempts been made to organize or extrapolate these models into broader theories. The Theory of Ecology brings together some of the most respected and creative theoretical ecologists of this era to advance a comprehensive, conceptual articulation of ecological theories. The contributors cover a wide range of topics, from ecological niche theory to population dynamic theory to island biogeography theory. Collectively, the chapters ably demonstrate how theory in ecology accounts for observations about the natural world and how models provide predictive understandings. It organizes these models into constitutive domains that highlight the strengths and weaknesses of ecological understanding. This book is a milestone in ecological theory and is certain to motivate future empirical and theoretical work in one of the most exciting and active domains of the life sciences.
Author : Daniel G. Milchunas
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (319 download)
Download or read book Responses of Plant Communities to Grazing in the Southwestern United States : written by Daniel G. Milchunas and published by . This book was released on 2006 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ary A. Hoffmann
Publisher : Oxford University Press on Demand
ISBN 13 : 9780198540816
Total Pages : 284 pages
Book Rating : 4.5/5 (48 download)
Download or read book Evolutionary Genetics and Environmental Stress written by Ary A. Hoffmann and published by Oxford University Press on Demand. This book was released on 1993 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now available in paper, this stimulating book concentrates on evolutionary change under environmental stress at levels ranging from the molecular to the biogeographic, with an emphasis on genetic aspects. This approach contrasts with most of the literature of evolutionary biology, as theemphasis here is upon the extreme end of the stress gradient in terms of resistance. Major topics in this interdisciplinary book include the concept of stress and its evolutionary and ecological importance; genetic variation in stress response and the effects of stress on genetic variation; and costs and trade-offs involving stress responses. An approach to stress resistance interms of energetics permits the development of links between genetics, ecology, physiology, and behaviour. The book concludes with applications concerning range expansions of species, conservation strategies, and pollution effects.
Author : Franklin Jacob Crider
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (31 download)
Download or read book Root-growth Stoppage Resulting from Defoliation of Grass written by Franklin Jacob Crider and published by . This book was released on 1955 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Steward T.A. Pickett
Publisher : Elsevier
ISBN 13 : 0080504957
Total Pages : 489 pages
Book Rating : 4.0/5 (85 download)
Download or read book The Ecology of Natural Disturbance and Patch Dynamics written by Steward T.A. Pickett and published by Elsevier. This book was released on 2013-10-22 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecologists are aware of the importance of natural dynamics in ecosystems. Historically, the focus has been on the development in succession of equilibrium communities, which has generated an understanding of the composition and functioning of ecosystems. Recently, many have focused on the processes of disturbances and the evolutionary significance of such events. This shifted emphasis has inspired studies in diverse systems. The phrase "patch dynamics" (Thompson, 1978) describes their common focus. The Ecology of Natural Disturbance and Patch Dynamics brings together the findings and ideas of those studying varied systems, presenting a synthesis of diverse individual contributions.
Author : Harold A. Mooney
Publisher : Springer Science & Business Media
ISBN 13 : 1461249880
Total Pages : 330 pages
Book Rating : 4.4/5 (612 download)
Download or read book Ecology of Biological Invasions of North America and Hawaii written by Harold A. Mooney and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The diversity of the earth's climates superimposed upon a complex configuration of physical features has provided the conditions for the evolution of a remarkable array of living things which are linked together into complex ecosystems. The kinds of organisms comprising the ecosystems of the world, and the nature of their interactions, have constantly changed through time due to coevolutionary interactions along with the effects of a continually changing physical environ ment. In recent evolutionary time there has been a dramatic and ever-accelerating rate of change in the configuration of these ecosystems because of the increasing influence of human beings. These changes range from subtle modifications caused by anthropogenically induced alterations in atmospheric properties to the total destruction of ecosystems. Many of these modifications have provided the fuel, food, and fiber which have allowed the expansion of human populations. Unfortunately, there have been many unanticipated changes which accompanied these modifications which have had effects detrimental to human welfare in cluding substantial changes in water and air quality. For example, the use of high-sulfur coal to produce energy in parts of North America is altering the properties of freshwater lakes and forests because of acidification.
Author : Mahesh K. Gaur
Publisher : Springer
ISBN 13 : 3319566814
Total Pages : 362 pages
Book Rating : 4.3/5 (195 download)
Download or read book Climate Variability Impacts on Land Use and Livelihoods in Drylands written by Mahesh K. Gaur and published by Springer. This book was released on 2017-08-30 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume is devoted to the examination of the implications of the inevitable changes wrought by global change on the welfare and livelihoods of tens of millions of people who live in dryland regions. Global change is more than just climate change and the ramifications of changing trade patterns (geopolitical and economic aspects), the shift to the market economy, demographic factors (population growth, urbanization and re-settlement), receive attention here. Land use change specialists, policy makers and natural resource management agencies will find the book very useful. Chapters focus on examples that are drawn from a number of sources including previously unpublished studies on the impact of climate change, markets and economics on pastoralist and dryland farming households. The key focus is to provide readers with insights into the real world implications of change (including an analysis of the drivers of change) on these vulnerable groups within dryland societies. The role of humans as agents of these changes is canvassed. A regional analysis of the world's drylands is also performed including those in Australia, Argentina, India, North America, China, North Africa, Central Asia and Southern Africa.
Author : David D. Briske
Publisher : Springer
ISBN 13 : 3319467093
Total Pages : 664 pages
Book Rating : 4.3/5 (194 download)
Download or read book Rangeland Systems written by David D. Briske and published by Springer. This book was released on 2017-04-12 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY-NC 2.5 license. This book provides an unprecedented synthesis of the current status of scientific and management knowledge regarding global rangelands and the major challenges that confront them. It has been organized around three major themes. The first summarizes the conceptual advances that have occurred in the rangeland profession. The second addresses the implications of these conceptual advances to management and policy. The third assesses several major challenges confronting global rangelands in the 21st century. This book will compliment applied range management textbooks by describing the conceptual foundation on which the rangeland profession is based. It has been written to be accessible to a broad audience, including ecosystem managers, educators, students and policy makers. The content is founded on the collective experience, knowledge and commitment of 80 authors who have worked in rangelands throughout the world. Their collective contributions indicate that a more comprehensive framework is necessary to address the complex challenges confronting global rangelands. Rangelands represent adaptive social-ecological systems, in which societal values, organizations and capacities are of equal importance to, and interact with, those of ecological processes. A more comprehensive framework for rangeland systems may enable management agencies, and educational, research and policy making organizations to more effectively assess complex problems and develop appropriate solutions.
Author : Iain J. Gordon
Publisher : Springer Science & Business Media
ISBN 13 : 3540724222
Total Pages : 341 pages
Book Rating : 4.5/5 (47 download)
Download or read book The Ecology of Browsing and Grazing written by Iain J. Gordon and published by Springer Science & Business Media. This book was released on 2007-09-14 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume investigates how large herbivores not only influence the structure and distribution of the vegetation, but also affect nutrient flows and the responses of associated fauna. The mechanisms and processes underlying the herbivores' behavior, distribution, movement and direct impact on the vegetation are discussed in detail. It is shown that an understanding of plant/animal interactions can inform the management of large herbivores to integrate production and conservation in terrestrial systems.
Author : Kishan Gopal Ramawat
Publisher : Springer Science & Business Media
ISBN 13 : 3642025501
Total Pages : 508 pages
Book Rating : 4.6/5 (42 download)
Download or read book Desert Plants written by Kishan Gopal Ramawat and published by Springer Science & Business Media. This book was released on 2009-12-16 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deserts appear very fascinating during our short visits. However, the lives of plants and animals are very dif?cult under the harsh climatic conditions of high tempe- ture and scant water supply in deserts, sometimes associated with high concent- tions of salt. The editor of this book was born and brought up in the Great Indian Desert, and has spent much of his life studying the growth and metabolism of desert plants. It is very charming on a cool summer evening to sit at the top of a sand dune listening only to blowing air and nothing else. It has been my dream to prepare a volume on desert plants encompassing various aspects of desert plant biology. In this book, I have tried to present functional and useful aspects of the vegetation resources of deserts along with scienti?c input aimed at understanding and impr- ing the utility of these plants. The scant vegetation of deserts supports animal life and provides many useful medicines, timber and fuel wood for humans. Therefore, there are chapters devoted to medicinal plants (Chap. 1), halophytes (Chaps. 13, 14), and fruit plants (Chaps. 17, 20). Desert plants have a unique reproductive biology (Chaps. 9–11), well-adapted eco-physiological and anatomical charact- istics (Chap. 7), and specialised metabolism and survival abilities. These plants are dif?cult to propagate and pose many problems to researchers developing biote- nological approaches for their amelioration (Chaps. 18–20).
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309048796
Total Pages : 201 pages
Book Rating : 4.3/5 (9 download)
Download or read book Rangeland Health written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rangelands comprise between 40 and 50 percent of all U.S. land and serve the nation both as productive areas for wildlife, recreational use, and livestock grazing and as watersheds. The health and management of rangelands have been matters for scientific inquiry and public debate since the 1880s, when reports of widespread range degradation and livestock losses led to the first attempts to inventory and classify rangelands. Scientists are now questioning the utility of current methods of rangeland classification and inventory, as well as the data available to determine whether rangelands are being degraded. These experts, who are using the same methods and data, have come to different conclusions. This book examines the scientific basis of methods used by federal agencies to inventory, classify, and monitor rangelands; it assesses the success of these methods; and it recommends improvements. The book's findings and recommendations are of interest to the public; scientists; ranchers; and local, state, and federal policymakers.
Author : John F. Vallentine
Publisher : Academic Press
ISBN 13 : 0127100008
Total Pages : 544 pages
Book Rating : 4.1/5 (271 download)
Download or read book Grazing Management written by John F. Vallentine and published by Academic Press. This book was released on 2012-12-02 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Grazing. Grazing Effects on Plants and Soils. Spatial Patterns in Grazing. Manipulation Grazing Distribution. Grazing and Herbivore Nutrition. Grazing Activities and Behavior. Plant Selection in Grazing. Kind and Mix of Grazing Animals. Grazing Animal Intake and Equivalence. Grazing Capacity Inventory. Grazing Intensity. Grazing Seasons. Grazing Systems. Part I. Grazing Systems. Part II. Appendix. Terminology. Literature Cited. Index of Plants. Subject Index. Key Features * Comparison of types of grazing land with grazing animals. * Evaluation of productivity of forage plants under different grazing regimes. * Examination of specialized grazing systems * Development of inventories of grazing resources * Determination of nutritive quality of various forages * Sustainability of forage plant vigor and productivity
Author : Rodney Keith Heitschmidt
Publisher : Timber Press (OR)
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.3/5 (91 download)
Download or read book Grazing Management written by Rodney Keith Heitschmidt and published by Timber Press (OR). This book was released on 1991 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ecological perspective; Range animal nutrition; Foraging behavior; Developmental morphology and physiology of grasses; Ecosystem-level processes; Hydrology and erosion; Livestock production; Wildlife; Social and economic influences on grazing management; The decision-making environment and planning paradigm.
Author : Ian Scoones
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.F/5 ( download)
Download or read book Living with Uncertainty written by Ian Scoones and published by . This book was released on 1994 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the management of policy implications for pastoral development in dryland areas. The contributors examine the consequences of living with uncertainty for pastoral development planning, range and fodder management, drought responses, livestock marketing, resource tenure, institutional development and pastoral administration.
Author : Henning Steinfeld
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251055717
Total Pages : 418 pages
Book Rating : 4.0/5 (557 download)
Download or read book Livestock's Long Shadow written by Henning Steinfeld and published by Food & Agriculture Org.. This book was released on 2006 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The assessment builds on the work of the Livestock, Environment and Development (LEAD) Initiative"--Pref.
