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ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (319 download)
Download or read book Preparing for the Future written by and published by . This book was released on 1992 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Directory of Research Natural Areas on Federal Lands of the United States of America written by and published by . This book was released on 1968 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (319 download)
Download or read book Research Natural Areas on National Forest System Lands in Idaho, Montana, Nevada, Utah, and Western Wyoming written by and published by . This book was released on 2001 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. T. Dyrness
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ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (16 download)
Download or read book Wheeler Creek Research Natural Area written by C. T. Dyrness and published by . This book was released on 1973 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sarah Greene
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (31 download)
Download or read book Research Natural Areas in Oregon and Washington written by Sarah Greene and published by . This book was released on 1986 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Federal Committee on Research Natural Areas
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ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.F/5 ( download)
Download or read book A Directory of Research Natural Areas on Federal Lands of the United States of America written by United States. Federal Committee on Research Natural Areas and published by . This book was released on 1968 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (11 download)
Download or read book Indian Creek Research Natural Area written by and published by . This book was released on 1983 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
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ISBN 13 :
Total Pages : 35 pages
Book Rating : 4.:/5 (631 download)
Download or read book Wheeler Creek Research Natural Area - Suppl. No. 1 to Federal Research Natural Areas in Oregon and Washington written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1972 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Deborah B. Jensen
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (258 download)
Download or read book An Ecological Survey of the Proposed Raider Creek Research Natural Area, Modoc National Forest, California written by Deborah B. Jensen and published by . This book was released on 1989* with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. T. Dyrness
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (31 download)
Download or read book Research Natural Area Needs in the Pacific Northwest written by C. T. Dyrness and published by . This book was released on 1975 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Natural Areas are examples of typical and distinctive natural ecosystems and habitats reserved for scientific and educational use. This outline of the minimal Research Natural Area system needed to provide adequate field laboratories for ecological, environmental, and land management research was developed by an interinstitutional, interdisciplinary working group. Natural area needs were first described on the basis of individual organisms, habitats, or ecosystems which should be represented. These "cells," the basic building blocks in defining the total scope of the system, considered terrestrial and aquatic environments as well as rare and endangered species. Identified cells were matched against existing Research Natural Areas to determine which were already filled. The remaining, unfilled cells were then tentatively grouped as units which were listed as Research Natural Area needs. A minimal Research Natural Area system for Oregon and Washington requires approximately 360 tracts which, in turn, incorporate over 770 individual cells (ecosystems, habitats, or organisms). Since 60 Research Natural Areas are already established, about 300 additional areas are needed. These remaining needs were assigned a priority (low, medium, or high) based on importance and degree to which they are endangered, as well as identified as to the Federal, State, or private agency or institution most likely to be able to provide a tract of that type. The purpose of Research Natural Areas, their place in land planning, history of Research Natural Area activities in the Pacific Northwest, and general observations and recommendations on unresolved problems are also outlined.
Author : Todd Keeler-Wolf
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (319 download)
Download or read book Ecological Surveys of Forest Service Research Natural Areas in California written by Todd Keeler-Wolf and published by . This book was released on 1990 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes each of 68 ecological surveys conducted from 1975 through 1988 on candidate and established Research Natural Areas in the Pacific Southwest Region of the USDA Forest Service. These surveys represent an important but largely unknown contribution to the ecological literature of California. For each summary, information on location, target elements, distinctive features, physical characteristics, association types, plant diversity, and conflicting impacts is provided. Comparisons are made between similar vegetation types at different sites. Tables and appendices summarize the plant communities, target elements, rare plants, and trees occurring on all areas. Maps of all areas and photographs of most areas are included.
Author : Steven K. Rust
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (319 download)
Download or read book Representativeness Assessment of Research Natural Areas on National Forest System Lands in Idaho written by Steven K. Rust and published by . This book was released on 2000 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A representativeness assessment of National Forest System (N FS) Research Natural Areas in ldaho summarizes information on the status of the natural area network and priorities for identification of new Research Natural Areas. Natural distribution and abundance of plant associations is compared to the representation of plant associations within natural areas. Natural distribution and abundance is estimated using modeled potential natural vegetation, published classification and inventory data, and Heritage plant community element occurrence data. Minimum criteria are applied to select only viable, high quality plant association occurrences. In assigning natural area selection priorities, decision rules are applied to encompass consideration of the adequacy and viability of representation. Selected for analysis were 1,024 plant association occurrences within 214 natural areas (including 115 NFS Research Natural Areas). Of the 1,566 combinations of association within ecological sections, 28 percent require additional data for further analysis; 8, 40, and 12 percent, respectively, are ranked from high to low conservation priority; 13 percent are fully represented. Patterns in natural area needs vary between ecological section. The result provides an operational prioritization of Research Natural Area needs at landscape and subregional scales. Objective ranking criteria provide clear accounting of priority assignments that are easily updated to reflect changing information or conditions.
Author : James K. Agee
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (555 download)
Download or read book Stetattle Creek Research Natural Area written by James K. Agee and published by . This book was released on 1987 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Todd Keeler-Wolf
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (13 download)
Download or read book An Ecological Survey of the King Creek Research Natural Area, Cleveland National Forest, San Diego, California written by Todd Keeler-Wolf and published by . This book was released on 1990 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Todd Keeler-Wolf
Publisher :
ISBN 13 :
Total Pages : 82 pages
Book Rating : 4.:/5 (282 download)
Download or read book Ecological Survey of the Proposed Mountaineer Creek Research Natural Area, Sequoia National Forest, Tulare County, California written by Todd Keeler-Wolf and published by . This book was released on 1991 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wyman C. Schmidt
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (319 download)
Download or read book Experimental Forests, Ranges, and Watersheds in the Northern Rocky Mountains written by Wyman C. Schmidt and published by . This book was released on 1996 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Todd Keeler-Wolf
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (246 download)
Download or read book Ecological Survey of the King Creek Research Natural Area, Cleveland National Forest, San Diego County, California written by Todd Keeler-Wolf and published by . This book was released on 1990 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
