Stillwater National Wildlife Refuge (N.W.R.) Complex, Comprehensive Conservation Plan and Boundary Revision
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Page : 506 pages
File Size : 36,11 MB
Release : 2000
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Page : 506 pages
File Size : 36,11 MB
Release : 2000
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Page : 346 pages
File Size : 15,51 MB
Release : 2008
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Page : 144 pages
File Size : 15,61 MB
Release : 2000
Category : Environmental impact statements
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Page : pages
File Size : 20,50 MB
Release : 2000
Category : Environmental impact statements
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Page : 144 pages
File Size : 36,13 MB
Release : 1997
Category : Conservation of natural resources
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Page : 486 pages
File Size : 18,93 MB
Release : 2000
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Author : Northern Rocky Mountain Wolf Recovery Team
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Page : 88 pages
File Size : 50,5 MB
Release : 1980
Category : Endangered species
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Author : National Research Council
Publisher : National Academies Press
Page : 580 pages
File Size : 32,25 MB
Release : 1992-01-01
Category : Technology & Engineering
ISBN : 9780309045346
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
Author : Christopher Servheen
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Page : 66 pages
File Size : 15,10 MB
Release : 1997
Category : Government publications
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Author : Susan E. Goodman
Publisher : Millbrook Press
Page : 52 pages
File Size : 39,3 MB
Release : 2008-01-01
Category : Juvenile Nonfiction
ISBN : 0822567482
Describes efforts by scientists to reestablish a whooping crane flock that would spend summers in Wisconsin and winters in Florida.