Annual Report of the Chief of Engineers, U.S. Army, on Civil Works Activities PDF Download

Author: United States. Army. Corps of Engineers
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 2108

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Author: United States. Army. Corps of Engineers
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 2108

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Author: United States. Army. Corps of Engineers. Civil Works Directorate
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 2104

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Author: Florida Manatee Recovery Team
Publisher:
ISBN:
Category : Manatees
Languages : en
Pages : 98

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Author: National Research Council
Publisher: National Academies Press
ISBN: 9780309045346
Category : Technology & Engineering
Languages : en
Pages : 580

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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: United States. Engineers Corps
Publisher:
ISBN:
Category : Harbors
Languages : en
Pages : 92

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Author: John Gaythwaite
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 344

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 494

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Author: James R. Spotila
Publisher: JHU Press
ISBN: 142141709X
Category : Science
Languages : en
Pages : 246

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The most comprehensive book ever written on leatherback sea turtles. Weighing as much as 2,000 pounds and reaching lengths of over seven feet, leatherback turtles are the world’s largest reptile. These unusual sea turtles have a thick, pliable shell that helps them to withstand great depths—they can swim more than one thousand meters below the surface in search of food. And what food source sustains these goliaths? Their diet consists almost exclusively of jellyfish, a meal they crisscross the oceans to find. Leatherbacks have been declining in recent decades, and some predict they will be gone by the end of this century. Why? Because of two primary factors: human redevelopment of nesting beaches and commercial fishing. There are only twenty-nine index beaches in the world where these turtles nest, and there is immense pressure to develop most of them into homes or resorts. At the same time, longline and gill net fisheries continue to overwhelm waters frequented by leatherbacks. In The Leatherback Turtle, James R. Spotila and Pilar Santidrián Tomillo bring together the world’s leading experts to produce a volume that reveals the biology of the leatherback while putting a spotlight on the conservation problems and solutions related to the species. The book leaves us with options: embark on the conservation strategy laid out within its pages and save one of nature’s most splendid creations, or watch yet another magnificent species disappear.

Author: United States. Great Lakes Basin Commission
Publisher: Ann Arbor, Mich. : The Commission
ISBN:
Category : Beach erosion
Languages : en
Pages : 90

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