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Author: Tom Walker
Publisher:
ISBN: 9781575101248
Category : Denali National Park and Preserve (Alaska)
Languages : en
Pages : 242
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Book Description
Author: Tom Walker
Publisher:
ISBN: 9781575101248
Category : Denali National Park and Preserve (Alaska)
Languages : en
Pages : 242
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Book Description
Author: Adolph Murie
Publisher: UBS Publishers' Distributors
ISBN: 9780295962030
Category : Nature
Languages : en
Pages : 264
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Book Description
In the time of Lewis and Clark, wolves were abundant throughout North America from the Arctic regions to Mexico. But man declared war on this cunning and powerful animal when cattle replaced the buffalo on the western plains, reducing the wolf's range to those few areas in the Far North where economic necessity did not call for its extinction. Between 1939 and 1941, Adolph Murie, one of North America's greatest naturalists, made a field study of the relationship between wolves and Dall sheep in Mount McKinley National Park (since renamed Denali National Park) which has come to be respected as a classic work of natural history. In this study Murie not only described the life cycle of Alaskan wolves in greater detail than has ever been done, but he discovered a great deal about the entire ecological network of predator and prey. The issues surrounding the survival of the wolf and its prey are more important today than ever, and Murie helps us understand the careful balance that must be maintained to ensure that these magnificent animals prosper. Originally available only in government publications which are long out-of-print, this account of a much maligned animal is now available in its first popular edition.
Author: Jane Bryant
Publisher:
ISBN: 9780692838860
Category :
Languages : en
Pages :
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Book Description
Author: Timothy Brabets
Publisher: Createspace Independent Publishing Platform
ISBN: 9781500551162
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
The Kantishna Hills are an area of low elevation mountains in the northwest part of Denali National Park and Preserve, Alaska. Streams draining the Kantishna Hills are clearwater streams that support several species of fish and are derived from rain, snowmelt, and subsurface aquifers. However, the water quality of many of these streams has been degraded by mining. Past mining practices generated acid mine drainage and excessive sediment loads that affected water quality and aquatic habitat. Because recovery through natural processes is limited owing to a short growing season, several reclamation projects have been implemented on several streams in the Kantishna Hills region. To assess the current water quality of streams in the Kantishna Hills area and to determine if reclamation efforts have improved water quality, a cooperative study between the U.S. Geological Survey and the National Park Service was undertaken during 2008-11.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 462
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Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 330
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Book Description
Author: Alfred Hulse Brooks
Publisher:
ISBN:
Category : Alaska
Languages : en
Pages : 274
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Book Description
Report of 1902 exploratory journey from Pacific seaboard through Alaska Range along northwest base of Mount McKinley to Tanana and Yukon rivers. Includes concise summary of mineral wealth of region and description of stratigraphy, structure, and geologic history of area. Also contains information about climate, vegetation and wildlife, agricultural lands, and means of communication and transportation.
Author: Joseph Bertram Umpleby
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 740
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Book Description
Author: Edwin Thor McKnight
Publisher:
ISBN:
Category : Alaska, Southcentral
Languages : en
Pages : 398
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Book Description
Author: David A. Phoenix
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 588
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Book Description
Prepared on behalf of the U.S. Atomic Energy Commission and published with permission of the Commission.
