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Book Research Natural Area Needs in the Pacific Northwest

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.

Book Preparing for the Future

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:

Book Research Natural Areas in Colorado Wyoming Nebraska North Dakota South Dakota and Parts of Wyoming

Download or read book Research Natural Areas in Colorado Wyoming Nebraska North Dakota South Dakota and Parts of Wyoming written by and published by . This book was released on 1994 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of the Research Natural Area system is to provide a representative range of undisturbed sites for research, monitoring, biodiversity protection, and as reference areas for management activities on public lands administered by the USDA Forest Service. This publication describes the location, significant features, climate, flora, fauna, and published research for the 16 Research Natural Areas established through 1993 on Public Lands administered by the USDA Forest Service in Colorado, Wyoming, Nebraska, North Dakota and South Dakota."--Title page verso

Book Botanical Reconnaissance of the Bowl Research Natural Area

Download or read book Botanical Reconnaissance of the Bowl Research Natural Area written by Lee E. Carbonneau and published by . This book was released on 1995 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Research Natural Areas in Colorado Nebraska North Dakota South Dakota and Parts of Wyoming

Download or read book Research Natural Areas in Colorado Nebraska North Dakota South Dakota and Parts of Wyoming written by Michael G. Ryan and published by Bear Meadows Research Group. This book was released on 1997-06-01 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ecological Surveys of Forest Service Research Natural Areas in California

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.

Book Research Natural Areas

Download or read book Research Natural Areas written by and published by . This book was released on 1984 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Research Natural Areas in New Mexico

Download or read book Research Natural Areas in New Mexico written by Roger S. Peterson and published by . This book was released on 1986 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Directory of Research Natural Areas on Federal Lands of the United States of America

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 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Research Natural Areas in Oregon and Washington

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:

Book Representativeness Assessment of Research Natural Areas on National Forest System Lands in Idaho

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.