Author: Publisher:
ISBN:
Category : Forest protection
Languages : en
Pages : 92
Book Description
Research Natural Areas on National Forest System Lands in Idaho, Montana, Nevada, Utah, and Western Wyoming
Author: General Technical Report RMRS
Author: Research Natural Areas in Oregon and Washington
Author: Sarah GreenePublisher:
ISBN:
Category : Natural areas
Languages : en
Pages : 124
Book Description
Research Natural Areas
Author: Representativeness Assessment of Research Natural Areas on National Forest System Lands in Idaho
Author: Steven K. RustPublisher:
ISBN:
Category : Biodiversity
Languages : en
Pages : 136
Book Description
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.
Botanical Reconnaissance of the Bowl Research Natural Area
Author: Lee E. CarbonneauPublisher:
ISBN:
Category : Botany
Languages : en
Pages : 300
Book Description
FWS/OBS.
Author: Alaska Research Natural Area
Author: Glenn Patrick JudayPublisher:
ISBN:
Category : Research natural areas
Languages : en
Pages : 76
Book Description
USDA Forest Service Experimental Forests and Ranges
Author: Deborah C. HayesPublisher: Springer
ISBN: 1461418186
Category : Science
Languages : en
Pages : 666
Book Description
USDA Forest Service Experimental Forests and Ranges (EFRs) are scientific treasures, providing secure, protected research sites where complex and diverse ecological processes are studied over the long term. This book offers several examples of the dynamic interactions among questions of public concern or policy, EFR research, and natural resource management practices and policies. Often, trends observed – or expected -- in the early years of a research program are contradicted or confounded as the research record extends over decades. The EFRs are among the few areas in the US where such long-term research has been carried out by teams of scientists. Changes in society’s needs and values can also redirect research programs. Each chapter of this book reflects the interplay between the ecological results that emerge from a long-term research project and the social forces that influence questions asked and resources invested in ecological research. While these stories include summaries and syntheses of traditional research results, they offer a distinctly new perspective, a larger and more complete picture than that provided by a more typical 5-year study. They also provide examples of long-term research on EFRs that have provided answers for questions not even imagined at the time the study was installed.
New Mexico Vegetation
Author: William A. Dick-PeddiePublisher: UNM Press
ISBN: 9780826321640
Category : Gardening
Languages : en
Pages : 284
Book Description
Originally published in 1993 and now available for the first time in paperback, this book remains one of the few authoritative vegetation compilations for a western state. It is the first comprehensive study of the biological history and evolution of New Mexico's vegetation and includes a detailed account of the distribution of plant communities in the state today. Discussed are the following major types of vegetation: tundra and coniferous forest, woodland and savanna, grassland, scrubland, riparian, and wetlands. For each type, information is provided on the principal plant species. In addition, for each vegetation type special attention is given to describing how plants sharing a common location interact and, in particular, how human activity impacts on each type. Much of New Mexico's vegetation is in some stage of succession as a result of human-initiated disturbances such as fire, logging, and livestock grazing. The book ends with a detailed description of species of special concern and what is being done to preserve examples of vegetation types within the state. A map of the state's vegetation, including types not found on existing maps, accompanies the book. The classifications of vegetation employed here are easily recognizable in the field, which makes them of greater use to the public as well as to resource managers, researchers, and students.