Proceedings RMRS.
Author :
Publisher :
Page : 262 pages
File Size : 31,14 MB
Release : 1998
Category : Forests and forestry
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Author :
Publisher :
Page : 262 pages
File Size : 31,14 MB
Release : 1998
Category : Forests and forestry
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Author :
Publisher :
Page : 200 pages
File Size : 15,48 MB
Release : 1998
Category : Ecological disturbances
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Author :
Publisher :
Page : 260 pages
File Size : 29,51 MB
Release : 2001
Category : Endangered plants
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These contributed papers review current research findings related to the demographic, monitoring, reintroduction, ecological and genetic studies done on southwestern rare plant species.
Author : James S. Fralish
Publisher : John Wiley & Sons
Page : 628 pages
File Size : 10,61 MB
Release : 2002-02-08
Category : Science
ISBN : 9780471161585
Thorough, detailed dendrological coverage of North American trees, shrubs, and vines This comprehensive field guide/procedural handbook provides extraordinarily detailed descriptions of trees, shrubs, and vines of North American forests. Written at a more detailed level than most field guides, it introduces basic taxonomic concepts and methods and explains the rationale behind taxonomic classification systems. Entries include Latin and common names for each species as well as physical descriptions at various levels of maturity and for different seasons. Also noted are regional and state distributions, soil conditions, cover types, shade tolerances, and common diseases and pests. This remarkably thorough and reliable reference includes: * Detailed descriptions of more than 800 species * Hundreds of additional varieties and cultivars * 550 exquisitely detailed line drawings of leaves, bark, fruit, and seeds * Broad coverage of commercial and noncommercial species * An emphasis on the silvical features of each species * A unique section on forest community ecology and cover types * The new North American Classification System Well-organized and practical, this authoritative guide is an immensely useful resource for foresters, wildlife and field biologists, naturalists, environmental scientists, and land managers.
Author :
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Page : 3126 pages
File Size : 13,66 MB
Release : 1997
Category : American literature
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Page : 468 pages
File Size : 35,69 MB
Release : 2001
Category : Forest restoration
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Author : Taylor H. Ricketts
Publisher : Washington, D.C. : Island Press
Page : 520 pages
File Size : 14,46 MB
Release : 1999
Category : Nature
ISBN :
Lauded in the New York Times science section as "a sweeping analysis of the ecosystems of the United States and Canada," this volume represents an unparalleled source of information and data for scientists and conservationists working in North America. Using a rigorous ecoregion-based approach, rather than the more common state-by-state analysis, a team of scientists from World Wildlife Fund has produced a stunning and comprehensive assessment of the current status of biodiversity in North America north of Mexico. Terrestrial Ecoregions of North America begins with six chapters that present the rationale for the ecoregion approach, describe the biological distinctiveness of North American ecoregions, assess the level of threats facing each, present a conservation agenda for the next decade, and set forth recommendations for preserving and restoring biodiversity. In addition, nineteen essays by leading scientists address specific topics such as the effect of cattle on riparian areas, and the problem of invasive exotic plant species. Following the main text are substantial appendixes that describe each ecoregion in detail, including information on: unique features of the ecoregion that set it apart from the others its biological distinctiveness, threats to habitats and wildlife, and important sites for conservation activities that enhance biodiversity conservation in the ecoregion conservation partners working in the ecoregion, including addresses and other contact information the relationship of the ecoregion to other classification schemes literature cited for that ecoregion One of the most useful and unique features of the book is the series of thirty full-color maps that present essential information about the ecoregions and the biodiversity they contain in a compelling and easily understood graphical format. The ecoregion-based approach has been adopted by many conservation groups as the most effective way to ward off massive losses of biodiversity, and this volume provides a road map to that important new strategy. With a significant number of previously unpublished data sets and new analytic approaches, Terrestrial Ecoregions of North America is both a guidebook for describing the biological wealth of the continent and a handbook for restoring and conserving it. It will be an essential reference for anyone concerned with biodiversity conservation in North America.
Author : David W. Perrin
Publisher :
Page : 506 pages
File Size : 42,92 MB
Release : 1985
Category : Natural resources
ISBN : 9780864991218
The purpose of the Natural Resources Information Directory is toprovide individuals and organizations dealing with naturalresource and land-related information with a means of determiningwhat Alberta information is available and from whom. Entrieshave been arranged alphabetically within six general informationcategories: Information Guide, Legislative Statutes, Maps, Reports and Bibliographies, Resource Files and Data Bases, Bibliographies, Indexes, Directories and Catalogues.
Author :
Publisher :
Page : 176 pages
File Size : 17,99 MB
Release : 2004
Category : Ecological disturbances
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Author :
Publisher :
Page : 176 pages
File Size : 45,42 MB
Release : 2004
Category : Ecological disturbances
ISBN :