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Adaptive Livestock Management In Semi Arid Rangelands
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Book Synopsis Adaptive Livestock Management in Semi-Arid Rangelands by : Sikhalazo Dube
Download or read book Adaptive Livestock Management in Semi-Arid Rangelands written by Sikhalazo Dube and published by VDM Publishing. This book was released on 2007 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Droughts are an integral part of semi-arid environments with far reaching negative consequences. Management decisions in these environments should be evaluated against scenario of uncertainty in climate and prices. There is a need for forecasting environmental and economic risks associated with different management options. Development of simple yet effective models to assist in development of effective management strategies is vital. These models should evaluate the potential risks and benefits of alternative management strategies. This study evaluates the effects of stocking rate for fixed and flexible strategies on range condition, ranch income and expenses for a cow-calf enterprises. The analysis should assist livestock manager produced sustainably in semi-arid environments. Use of principles in the study can alleviate some of the drought induced livestock mortalities through forward looking forage planning. The book is addressed to livestock producers, ecologists, drought management strategists and climatologists. It is a good guide for researchers in the field of ecological modeling, particularly those looking at developing more robust and user friendly models
Book Synopsis A Model for Adaptive Livestock Management on Semi-arid Rangelands in Texas by : Sikhalazo Dube
Download or read book A Model for Adaptive Livestock Management on Semi-arid Rangelands in Texas written by Sikhalazo Dube and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A stochastic, compartmental Model for Adaptive Livestock Management (MALM) was developed for cow-calf enterprise for Rolling Plains of Texas from an existing model, Simple Ecological Sustainability Simulator (SESS). The model simulates forage and animal production. It runs on a monthly time step. Two stocking strategies, flexible and fixed, were evaluated at seven stocking levels for effects on forage and animal production, range condition, and net ranch income. Evaluation data were obtained from published and unpublished data from Texas A & M Agricultural Experimental Station at Vernon for Throckmorton. The model adequately simulated forage and animal production. Light fixed stocking rates and flexible stocking strategies resulted in cows of median body condition score (BCS) 5, compared to low BCS of 4 under moderate fixed stocking rate, and BCS of 3 under heavy fixed stocking. BCS declined from autumn to early spring and peaked in summer. Cows under light fixed stocking rates and under flexible stocking were heavier (460 kg) compared to those under heavy fixed stocking (439 kg). Replacement rates were lower under light stocking (22 %), compared to flexible (37 %) and heavy stocking (56 %). Calf crops were all above the reported 90 % expected for bred heifers because of the replacement policy. Flexible stocking strategy resulted in higher net income ($19.62 ha−1), compared to fixed light ($5.93 ha−1) or fixed heavy ($-17.35 ha−1) stocking strategies. Coefficient of variation (CV) in net income was highest under heavy stocking (90%) compared to light stocking (60%) and flexible stocking (50%). Maximum net income was obtained between 0.05 AUM·ha−1 and 0.13 AUM·ha−1 when fixed stocking strategy was used but when flexible stocking strategy was used maximum net income was obtained between 0.1 AUM·ha−1 and 0.17 AUM·ha−1. Range condition rapidly declined under fixed heavy stocking, increased under fixed and light flexible stocking, and remained constant under moderate flexible stocking. Heavy fixed stocking decreased range condition rapidly over a 20-year period. MALM was an effective tool to demonstrate effects of different management strategies. The model can function as a strategic or a tactical decision aid. It is concluded that there is potential for this model to assist managers in improving the sustainability of agriculture.
Book Synopsis Rangeland Systems by : David D. Briske
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.
Book Synopsis Holistic Resource Management by : Allan Savory
Download or read book Holistic Resource Management written by Allan Savory and published by . This book was released on 1988 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holistic management considers humans, their economies, and the environment as inseparable. At the heart of the approach lies a simple testing process that enables people to make decisions that simultaneously consider economic, social and environmental realities, both short- and long-term. A useful handbook for anyone involved with land management and stewardship.
Book Synopsis Ecology of the Shortgrass Steppe by : W. K. Lauenroth
Download or read book Ecology of the Shortgrass Steppe written by W. K. Lauenroth and published by Oxford University Press. This book was released on 2008-08-28 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecology of the Shortgrass Steppe: A Long-Term Perspective summarizes and synthesizes more than sixty years of research that has been conducted throughout the shortgrass region in North America. The shortgrass steppe was an important focus of the International Biological Program's Grassland Biome project, which ran from the late 1960s until the mid-1970s. The work conducted by the Grassland Biome project was preceded by almost forty years of research by U.S. Department of Agriculture researchers-primarily from the Agricultural Research Service-and was followed by the Shortgrass Steppe Long-Term Ecological Research project. This volume is an enormously rich source of data and insight into the structure and function of a semiarid grassland.
Book Synopsis Advances in Range Management in Arid Lands by : Riad Halwagy
Download or read book Advances in Range Management in Arid Lands written by Riad Halwagy and published by Routledge. This book was released on 1990 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1990. Routledge is an imprint of Taylor & Francis, an informa company.
Download or read book Arid and Semiarid Lands written by and published by . This book was released on 1984 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rangeland Management During Drought by : Tonya R. Haigh
Download or read book Rangeland Management During Drought written by Tonya R. Haigh and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rangeland managers face challenges to adapt to climate extremes, and research is needed on how to support their adaptive capacity for managing climate risk. This study evaluates adaptive capacity using an integrated vulnerability and resilience conceptual model and three cognitive behavioral models. Overarching research questions focus on the relationship between protective action and impacts and the best predictors of taking action in response to drought. Three studies address these questions, using quantitative data collected from two post-drought surveys of rangeland-based livestock managers in the Northern Great Plains of the U.S. The studies find evidence of the roles of social-ecological sources of adaptive capacity, use of drought early warning and monitoring, and manager perceptions of their own efficacy in managing drought and the barriers they face, in predicting the actions taken (and at what time) during drought. However, in the studies, actions were not necessarily associated with experiencing fewer impacts, leaving questions about the effectiveness of post-event measurement of proactive drought action and impacts. A nested cognitive-social-ecological model of adaptive capacity is proposed to inform future research on drought management and climate adaptation.
Author :National Research Council (U.S.). Board on Science and Technology for International Development Publisher : ISBN 13 : Total Pages :392 pages Book Rating :4.:/5 (51 download)
Book Synopsis The Improvement of Tropical and Subtropical Rangelands by : National Research Council (U.S.). Board on Science and Technology for International Development
Download or read book The Improvement of Tropical and Subtropical Rangelands written by National Research Council (U.S.). Board on Science and Technology for International Development and published by . This book was released on 1990 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Range Ecology at Disequilibrium by : Roy H. Behnke
Download or read book Range Ecology at Disequilibrium written by Roy H. Behnke and published by Overseas Development Institute (ODI). This book was released on 1993 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Livestock Centre for Africa's Rangeland Research Program in the Arid and Semi-Arid Zones: Review and Recommendations by : International Livestock Centre for Africa
Download or read book International Livestock Centre for Africa's Rangeland Research Program in the Arid and Semi-Arid Zones: Review and Recommendations written by International Livestock Centre for Africa and published by ILRI (aka ILCA and ILRAD). This book was released on with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Grazing effects and resource use by large herbivores in arid and semi-arid rangelands: Advancements of analysis through high resolution spatio-temporally dynamic modelling by : Pascal Fust
Download or read book Grazing effects and resource use by large herbivores in arid and semi-arid rangelands: Advancements of analysis through high resolution spatio-temporally dynamic modelling written by Pascal Fust and published by BoD – Books on Demand. This book was released on 2022-01-01 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focused on the development of an agent-based model of livestock herds in semi-arid rangeland and its application in view of the sustainable use of natural resources and effects of climate change.
Book Synopsis Differential Adaptation Strategies by Agro-ecological Zones in African Livestock Management by : S. Niggol Seo
Download or read book Differential Adaptation Strategies by Agro-ecological Zones in African Livestock Management written by S. Niggol Seo and published by World Bank Publications. This book was released on 2008 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This paper examines how farmers have adapted their livestock operation to the current climate in each agro-ecological zone in Africa. The authors examine how climate has affected the farmer's choice to raise livestock or not and the choice of animal species. To measure adaptation, the analysis regresses the farmer's choice on climate, soil, water flow, and socio-economic variables. The findings show that climate does in fact affect the farmer's decision about whether to raise livestock and the species. The paper also simulates how future climates may alter these decisions using forecasts from climate models and the estimated model. With a hot dry scenario, livestock ownership will increase slightly across all of Africa, but especially in West Africa and high elevation agro-ecological zones. Dairy cattle will decrease in semi-arid regions, sheep will increase in the lowlands, and chickens will increase at high elevations. With a mild and wet scenario, however, livestock adoption will fall dramatically in lowland and high latitude moist agro-ecological zones. Beef cattle will increase and sheep will fall in dry zones, dairy cattle will fall precipitously and goats will rise in moist zones, and chickens will increase at high elevations but fall at mid elevations. Livestock adaptations depend on the climate scenario and will vary across the landscape. Agro-ecological zones are a useful way to capture how these changes differ from place to place.
Book Synopsis Wild Rangelands by : Johan T. du Toit
Download or read book Wild Rangelands written by Johan T. du Toit and published by John Wiley & Sons. This book was released on 2012-11-06 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rangeland ecosystems which include unimproved grasslands,shrublands, savannas and semi-deserts, support half of theworld’s livestock, while also providing habitats for some ofthe most charismatic of wildlife species. This book examines thepressures on rangeland ecosystems worldwide from human land use,over-hunting, and subsistence and commercial farming of livestockand crops. Leading experts have pooled their experiences from allcontinents to cover the ecological, sociological, political,veterinary, and economic aspects of rangeland management today. This book provides practitioners and students ofrangeland management and wildland conservation with a diversity ofperspectives on a central question: can rangelands be wildlands? The first book to examine rangelands from a conservationperspective Emphasizes the balance between the needs of people andlivestock, and wildlife Written by an international team of experts covering allgeographical regions Examines ecological, sociological, political, veterinary, andeconomic aspects of rangeland management and wildland conservation,providing a diversity of perspectives not seen before in a singlevolume
Book Synopsis Vegetation Monitoring by : Caryl L. Elzinga
Download or read book Vegetation Monitoring written by Caryl L. Elzinga and published by DIANE Publishing. This book was released on 1998-05 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This annotated bibliography documents literature addressing the design and implementation of vegetation monitoring. It provides resources managers, ecologists, and scientists access to the great volume of literature addressing many aspects of vegetation monitoring: planning and objective setting, choosing vegetation attributes to measure, sampling design, sampling methods, statistical and graphical analysis, and communication of results. Over half of the 1400 references have been annotated. Keywords pertaining to the type of monitoring or method are included with each bibliographic entry. Keyword index.
Book Synopsis Ecological Management of Arid and Semi-arid Rangelands in Africa and the Near and Middle East by : Food and Agriculture Organization of the United Nations
Download or read book Ecological Management of Arid and Semi-arid Rangelands in Africa and the Near and Middle East written by Food and Agriculture Organization of the United Nations and published by . This book was released on 1978 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rangeland Health by : National Research Council
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.
