Author: Publisher:
ISBN:
Category : Animal ecology
Languages : en
Pages : 92
Book Description
Wildland Fire in Ecosystems
Author: Using Science to Improve the BLM Wild Horse and Burro Program
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309264944
Category : Technology & Engineering
Languages : en
Pages : 399
Book Description
Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward reviews the science that underpins the Bureau of Land Management's oversight of free-ranging horses and burros on federal public lands in the western United States, concluding that constructive changes could be implemented. The Wild Horse and Burro Program has not used scientifically rigorous methods to estimate the population sizes of horses and burros, to model the effects of management actions on the animals, or to assess the availability and use of forage on rangelands. Evidence suggests that horse populations are growing by 15 to 20 percent each year, a level that is unsustainable for maintaining healthy horse populations as well as healthy ecosystems. Promising fertility-control methods are available to help limit this population growth, however. In addition, science-based methods exist for improving population estimates, predicting the effects of management practices in order to maintain genetically diverse, healthy populations, and estimating the productivity of rangelands. Greater transparency in how science-based methods are used to inform management decisions may help increase public confidence in the Wild Horse and Burro Program.
Southern Forest Science
Author: Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 402
Book Description
"Southern forests provide innumerable benefits. Forest scientists, managers, owners, and users have in common the desire to improve the condition of these forests and the ecosystems they support. A first step is to understand the contributions science has made and continues to make to the care and management of forests. This book represents a celebration of past accomplishments, summarizes the current state of knowledge, and creates a vision for the future of southern forestry research and management. Chapters are organized into seven sections: "Looking Back," "Productivity," "Forest Health," "Water and Soils," "Socioeconomic," "Biodiversity," and "Climate Change." Each section is preceded by a brief introductory chapter. Authors were encouraged to focus on the most important aspects of their topics; citations are included to guide readers to further information."
Mariana Islands Range Complex
Author: New Publications of the Geological Survey
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 836
Book Description
River to Reservoir
Author: P. CorbettPublisher: Geological Society of London
ISBN: 1786204312
Category : Science
Languages : en
Pages : 297
Book Description
This volume brings together a number of papers from two workshops with the theme, ‘Rain, Rivers, Reservoirs’, which considered the dynamic changes to river systems as part of natural processes, particularly changing climatic conditions. Bringing researchers from two different locations to Brazil and the UK allowed scientists to contribute to and promote, ‘debate on current research…on how the planet works and how we can live sustainably on it’. This volume features a series of papers on the geoscience of modern and ancient rivers from across the world (Brazil, United States, Spain, Argentina, Canada, India and the UK), their evolution through time, their management, their deposits and their engineering, with both subsurface aquifers/hydrocarbon reservoirs (of Carboniferous, Triassic and Cretaceous age) and surface reservoirs considered.
Wigeongrass (Ruppia Maritima L.)
Author: Harold A. KantrudPublisher:
ISBN:
Category : Ruppia maritima
Languages : en
Pages : 64
Book Description
The Gullah People and Their African Heritage
Author: William S. PollitzerPublisher: University of Georgia Press
ISBN: 9780820327839
Category : Social Science
Languages : en
Pages : 340
Book Description
The Gullah people are one of our most distinctive cultural groups. Isolated off the South Carolina-Georgia coast for nearly three centuries, the native black population of the Sea Islands has developed a vibrant way of life that remains, in many ways, as African as it is American. This landmark volume tells a multifaceted story of this venerable society, emphasizing its roots in Africa, its unique imprint on America, and current threats to its survival. With a keen sense of the limits to establishing origins and tracing adaptations, William S. Pollitzer discusses such aspects of Gullah history and culture as language, religion, family and social relationships, music, folklore, trades and skills, and arts and crafts. Readers will learn of the indigo- and rice-growing skills that slaves taught to their masters, the echoes of an African past that are woven into baskets and stitched into quilts, the forms and phrasings that identify Gullah speech, and much more. Pollitzer also presents a wealth of data on blood composition, bone structure, disease, and other biological factors. This research not only underscores ongoing health challenges to the Gullah people but also helps to highlight their complex ties to various African peoples. Drawing on fields from archaeology and anthropology to linguistics and medicine, The Gullah People and Their African Heritage celebrates a remarkable people and calls on us to help protect their irreplaceable culture.
Atlas of Volcanic Landforms on Mars
Author: Carroll Ann HodgesPublisher:
ISBN:
Category : Mars (Planet)
Languages : en
Pages : 204
Book Description
Author: