EPA National Publications Catalog
Author: United States. Environmental Protection Agency
Publisher:
Published: 1996
Total Pages: 896
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: United States. Environmental Protection Agency
Publisher:
Published: 1996
Total Pages: 896
ISBN-13:
DOWNLOAD EBOOKAuthor: Joan R. Hartmann
Publisher:
Published: 1994
Total Pages: 358
ISBN-13:
DOWNLOAD EBOOKAuthor: Loren M. Smith
Publisher: University of Texas Press
Published: 2003-11-01
Total Pages: 277
ISBN-13: 0292743688
DOWNLOAD EBOOKWinner, Wildlife Publications Award — Outstanding Book Category, The Wildlife Society, 2004 Texas Tech University President's Book Award, 2005 Shallow wetlands that occur primarily in semi-arid to arid environments, playas are keystone ecosystems in the western Great Plains of North America. Providing irreplaceable habitat for native plants and animals, including migratory birds, they are essential for the maintenance of biotic diversity throughout the region. Playas also serve to recharge the aquifer that supplies much of the water for the Plains states. At the same time, however, large-scale habitat changes have endangered playas across the Great Plains, making urgent the need to understand their ecology and implement effective conservation measures. This book provides a state-of-the-art survey of all that is currently known about Great Plains playa ecology and conservation. Loren Smith synthesizes his own extensive research with other published studies to define playas and characterize their origin, development, flora, fauna, structure, function, and diversity. He also thoroughly explores the human relationship with playas from prehistoric times, when they served as campsites for the Clovis peoples, to today's threats to playa ecosystems from agricultural activities and global climate change. A blueprint for government agencies, private conservation groups, and concerned citizens to save these unique prairie ecosystems concludes this landmark study.
Author: United States. Environmental Protection Agency
Publisher:
Published: 2001
Total Pages: 420
ISBN-13:
DOWNLOAD EBOOKAuthor: Fritz L. Knopf
Publisher: Springer Science & Business Media
Published: 2013-04-17
Total Pages: 329
ISBN-13: 1475727038
DOWNLOAD EBOOKThe frontier images of America embrace endless horizons, majestic herds of native ungulates, and romanticized life-styles of nomadie peoples. The images were mere reflections of vertebrates living in harmony in an ecosystem driven by the unpre dictable local and regional effects of drought, frre, and grazing. Those effects, often referred to as ecological "disturbanees," are rather the driving forces on which species depended to create the spatial and temporal heterogeneity that favored ecological prerequisites for survival. Alandscape viewed by European descendants as monotony interrupted only by extremes in weather and commonly referred to as the "Great American Desert," this country was to be rushed through and cursed, a barrier that hindered access to the deep soils of the Oregon country, the rich minerals of California and Colorado, and the religious freedom sought in Utah. Those who stayed (for lack of resources or stamina) spent a century trying to moderate the ecological dynamics of Great Plains prairies by suppressing fires, planting trees and exotic grasses, poisoning rodents, diverting waters, and homogenizing the dynamies of grazing with endless fences-all creating bound an otherwise boundless vista. aries in Historically, travelers and settlers referred to the area of tallgrasses along the western edge of the deciduous forest and extending midway across Kansas as the "True Prairie. " The grasses thlnned and became shorter to the west, an area known then as the Great Plains.
Author: United States. Department of the Interior
Publisher:
Published: 1994
Total Pages: 358
ISBN-13:
DOWNLOAD EBOOKAuthor: Society of Wetland Scientists (U.S.). Conference
Publisher:
Published: 1993
Total Pages: 996
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Dept. of the Interior
Publisher:
Published: 1994
Total Pages: 350
ISBN-13:
DOWNLOAD EBOOKAuthor: Roger S. Sharpe
Publisher: U of Nebraska Press
Published: 2001-01-01
Total Pages: 566
ISBN-13: 9780803242890
DOWNLOAD EBOOKNebraska sits at the nexus of continental bird migration and serves as a home?either permanently or seasonally?for nearly 450 species. Major migratory routes pass through the state, creating numerous opportunities to observe the great variety of North American bird species. The annual crane migrations in spring are legendary, and other key events include winter concentrations of bald eagles, flocks of up to thirty thousand grebes, mergansers, and gulls at Lake McConaughy in late fall, and incredible concentrations of waterfowl in the Rainwater Basin in early spring.øBirds of Nebraska captures the variety of Nebraska's ornithological possibilities in a style useful to hobbyists and professionals alike. For the first time in Nebraska ornithology, the authors have provided an exhaustive summary of state bird records compiled into concise but readable accounts of all species of birds reported in the state. This work covers taxonomy, early and late migration dates, high counts, nesting areas, and likely viewing locations.