National Ecology Research Center
Author :
Publisher :
Page : 16 pages
File Size : 27,21 MB
Release : 1993
Category : Ecology
ISBN :
Author :
Publisher :
Page : 16 pages
File Size : 27,21 MB
Release : 1993
Category : Ecology
ISBN :
Author : Fred B. Samson
Publisher : Island Press
Page : 358 pages
File Size : 33,22 MB
Release : 1996-08
Category : Nature
ISBN : 9781610913942
The area of native prairie known as the Great Plains once extended from Canada to the Mexican border and from the foothills of the Rocky Mountains to western Indiana and Wisconsin. Today the declines in prairie landscape types, estimated to be as high as 99%, exceed those of any other major ecosystem in North America. The overwhelming loss of landscape and accompanying loss of species constitute a real threat to both ecological and human economic health.Prairie Conservation is a comprehensive examination of the history, ecology, and current status of North American grasslands. It presents for the first time in a single volume information on the historical, economic, and cultural significance of prairies, their natural history and ecology, threats, and conservation and restoration programs currently underway. Chapters cover: environmental history of the Great Plains the economic value of prairie prairie types -- tallgrass, mixed grass, shortgrass, wetlands -- and the ecological processes that sustain each type prairie fauna -- invertebrates, fish and other aquatic creatures, amphibians and reptiles, birds, and mammals conservation programs such as the Great Plains Partnership, Canada's Prairie Conservation Action Plan, the U.S. Prairie Pothole Joint Venture, and others The book brings together knowledge and insights from a wide range of experts to describe and explain the importance of prairies and to position them in the forefront of North American conservation efforts. Praire Conservation is an essential reference for anyone interested in prairie ecology and conservation and will play a critical role in broadening our awareness and understanding of prairie ecosystems.
Author : John W. Day, Jr.
Publisher : John Wiley & Sons
Page : 576 pages
File Size : 22,8 MB
Release : 2012-11-19
Category : Science
ISBN : 0471755672
Estuaries are among the most biologically productive ecosystems on the planet--critical to the life cycles of fish, other aquatic animals, and the creatures which feed on them. Estuarine Ecology, Second Edition, covers the physical and chemical aspects of estuaries, the biology and ecology of key organisms, the flow of organic matter through estuaries, and human interactions, such as the environmental impact of fisheries on estuaries and the effects of global climate change on these important ecosystems. Authored by a team of world experts from the estuarine science community, this long-awaited, full-color edition includes new chapters covering phytoplankton, seagrasses, coastal marshes, mangroves, benthic algae, Integrated Coastal Zone Management techniques, and the effects of global climate change. It also features an entriely new section on estuarine ecosystem processes, trophic webs, ecosystem metabolism, and the interactions between estuaries and other ecosystems such as wetlands and marshes
Author : U.S. Fish and Wildlife Service
Publisher :
Page : 66 pages
File Size : 30,89 MB
Release :
Category : Ecology
ISBN :
Author : Michael Peschke
Publisher : Walter de Gruyter
Page : 365 pages
File Size : 39,13 MB
Release : 2010-10-06
Category : Reference
ISBN : 3110957965
For researchers in business, government and academe, the ""Dictionary"" decodes abbreviations and acronyms for approximately 720,000 associations, banks, government authorities, military intelligence agencies, universities and other teaching and research establishments.
Author : Char Miller
Publisher : University Press of Kansas
Page : 256 pages
File Size : 14,69 MB
Release : 2018-01-31
Category : History
ISBN : 0700625224
Over the course of a year, in just one national forest in California, raids on illegal marijuana growing operations yielded 19,710 pounds of infrastructure, 138 ounces of restricted poisons, 4,595 pounds of fertilizer, 12 gallons of common pesticides, 5.6 miles of waterlines, and 102 propane bottles. Even as efforts to legalize marijuana accelerate, such “trespass grows” spread exponentially—as does their effect on the environment. The nature of this impact on the land and in the political arena is the pressing issue addressed in Where There’s Smoke. This first-of-its-kind interdisciplinary anthology draws on the insights of scientists, researchers, and activists and ranges across the humanities, natural sciences, and social sciences to explore the troubling environmental consequences of illegal marijuana production on public, private, and tribal lands. Classified as a Schedule 1 drug, marijuana has been a central focus of the so-called War on Drugs—with the perverse result of shifting marijuana production from Mexico to the United States and with unanticipated consequences for the natural environment. Where There’s Smoke assesses the broad spectrum of the policy’s effect on land and water, flora and fauna, as well as the firsthand challenges faced by those tasked with responding to this tangled and often dangerous state of affairs. In its broad scope, varied perspective, and depth of detail, the book will prove essential to an understanding of the complex social and environmental ramifications of marijuana policy and politics in the United States.
Author :
Publisher :
Page : 962 pages
File Size : 46,30 MB
Release : 1991
Category : Hydrology
ISBN :
Author :
Publisher :
Page : 238 pages
File Size : 34,9 MB
Release : 1987
Category : Fisheries
ISBN :
Author : United States. Congress. Senate. Committee on Appropriations. Subcommittee on the Department of the Interior and Related Agencies
Publisher :
Page : 1440 pages
File Size : 39,67 MB
Release : 1993
Category : United States
ISBN :
Author :
Publisher :
Page : 184 pages
File Size : 49,10 MB
Release : 1993
Category : Fish hatcheries
ISBN :