Checklist of Non-Vascular Plants of Grand Canyon National Park, Arizona: Kingdoms Monera, Protista, Fungi & Plantae (Phylum Bryophyta): Notulae Naturae of The Acad. of Natural Sciences of Phila., No. 474 PDF Download
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Author:
Publisher: Academy of Natural Sciences
ISBN: 9781604834741
Category :
Languages : en
Pages : 20
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Book Description
Author:
Publisher: Academy of Natural Sciences
ISBN: 9781604834741
Category :
Languages : en
Pages : 20
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Book Description
Author: Barbara G. Phillips
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 90
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Book Description
Author: Robert H. Webb
Publisher: University of Arizona Press
ISBN: 9780816515783
Category : History
Languages : en
Pages : 316
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Book Description
Photographs made in Grand Canyon a century ago may provide us with a sense of history; photographs made today from the same vantage points give us a more precise picture of change in this seemingly timeless place. Between 1889 and 1890, Robert Brewster Stanton made photographs every one to two miles through the river corridor for the purpose of planning a water-level railroad route; he produced the largest collection of photographs of the Colorado River at one point in time. Robert Webb, a USGS hydrologist conducting research on debris flows in the Canyon, obtained the photographs, and from 1989 to 1995, he replicated all 445 of the views captured by Stanton, matching as closely as possible the original camera positions and lighting conditions. Grand Canyon, a Century of Change assembles the most dramatic of these paired photographs to demonstrate both the persistence of nature and the presence of humanity. The level of detail obtained from the photographs represent one of the most extensive long-term monitoring efforts ever conducted in a national park and the most detailed documentation effort ever performed using repeat photography. Much more than simply a picture book, Grand Canyon, a Century of Change is an environmental history of the river corridor, a fascinating book that clearly shows the impact of human influence on Grand Canyon and warns us that the Canyon's future is very much in our hands.
Author: Stephen Whitney
Publisher: William Morrow
ISBN:
Category : Nature
Languages : en
Pages : 352
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309045355
Category : Science
Languages : en
Pages : 287
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Book Description
This book contains 11 papers that review the extant information about the Colorado River from an ecosystem perspective and serve as the basis for discussion of the use of ecosystem/earth science information for river management and dam operations. It also contains a synopsis of the committee's findings and recommendations to the Bureau of Reclamation as the agency seeks to change its direction to the management of natural resources.
Author: Grand Canyon Natural History Association
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 218
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Book Description
Author:
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 104
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Book Description
Author: David G. Frodin
Publisher: Cambridge University Press
ISBN: 9781139428651
Category : Science
Languages : en
Pages : 1136
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Book Description
This 2001 book provides a selective annotated bibliography of the principal floras and related works of inventory for vascular plants. The second edition was completely updated and expanded to take into account the substantial literature of the late twentieth century, and features a more fully developed review of the history of floristic documentation. The works covered are principally specialist publications such as floras, checklists, distribution atlases, systematic iconographies and enumerations or catalogues, although a relatively few more popularly oriented books are also included. The Guide is organised in ten geographical divisions, with these successively divided into regions and units, each of which is prefaced with a historical review of floristic studies. In addition to the bibliography, the book includes general chapters on botanical bibliography, the history of floras, and general principles and current trends, plus an appendix on bibliographic searching, a lexicon of serial abbreviations, and author and geographical indexes.
Author: Academy of Natural Sciences of Philadelphia
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 22
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Book Description
Author: Peter S. Bennett
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 240
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Book Description
