Author: Carolyn B. Meyer
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 108
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Book Description
An approach for synthesizing the results of ecological research pertinent to land management is the analysis of the historic range of variability (HRV) for key ecosystem variables that are affected by management activities. This report provides an HRV analysis for the upland vegetation of the Bighorn National Forest in northcentral Wyoming. The variables include live tree density, dead tree (snag) density, canopy cover, abundance of coarse woody debris, species diversity, fire return intervals, the abundance of various diseases, the proportion of the landscape in different land cover types, and the degree of patchiness in the landscape. The variables were examined at the stand and landscape scales, using information available in the literature and USFS databases. High-elevation landscapes were considered separately from low-elevation landscapes. Much of the report pertains to forests dominated by lodge-pole pine, subalpine fir, and Engelmann spruce at high elevations, and by ponderosa pine, aspen, and Douglas-fir at lower elevations. We defined the HRV reference period for the BNF as approximately 1600 to 1890.
Author: Gregory K. Dillon
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 96
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Book Description
Author: John A. Wiens
Publisher: John Wiley & Sons
ISBN: 1118329759
Category : Science
Languages : en
Pages : 360
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Book Description
In North America, concepts of Historical Range of Variability are being employed in land-management planning for properties of private organizations and multiple government agencies. The National Park Service, U.S. Fish & Wildlife Service, Bureau of Land Management, U.S. Forest Service, and The Nature Conservancy all include elements of historical ecology in their planning processes. Similar approaches are part of land management and conservation in Europe and Australia. Each of these user groups must struggle with the added complication of rapid climate change, rapid land-use change, and technical issues in order to employ historical ecology effectively. Historical Environmental Variation in Conservation and Natural Resource Management explores the utility of historical ecology in a management and conservation context and the development of concepts related to understanding future ranges of variability. It provides guidance and insights to all those entrusted with managing and conserving natural resources: land-use planners, ecologists, fire scientists, natural resource policy makers, conservation biologists, refuge and preserve managers, and field practitioners. The book will be particularly timely as science-based management is once again emphasized in United States federal land management and as an understanding of the potential effects of climate change becomes more widespread among resource managers. Additional resources for this book can be found at: www.wiley.com/go/wiens/historicalenvironmentalvariation.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 122
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Book Description
Author: Paul Johnsgard
Publisher: Lulu.com
ISBN: 160962114X
Category : Nature
Languages : en
Pages : 70
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Book Description
Part I. The Brinton Museum and Its Birds Part II. Profiles of 48 Common Local and Regional Birds: Ring-necked Pheasant, Sharp-tailed Grouse, Great Blue Heron, Turkey Vulture, Osprey, Bald Eagle, Cooper's Hawk, Red-tailed Hawk, Rough-legged Hawk, Sandhill Crane, Killdeer, Eastern Screech-Owl, Great Horned Owl, Broad-tailed Hummingbird, Calliope Hummingbird, Belted Kingfisher, Downy Woodpecker, Red-naped Sapsucker, Northern Flicker, American Kestrel, Western Wood-Pewee, Say's Phoebe, Eastern Kingbird, Black-billed Magpie, American Crow, Common Raven, Tree Swallow, Cliff Swallow, Black-capped Chickadee, Mountain Chickadee, Red-breasted Nuthatch, Brown Creeper, House Wren, American Dipper, Mountain Bluebird, Cedar Waxwing, Yellow Warbler, Yellow-rumped Warbler, Spotted Towhee, Vesper Sparrow, Dark-eyed Junco, Western Tanager, Black-headed Grosbeak, Lazuli Bunting, Western Meadowlark, Gray-crowned Rosy-Finch, House Finch, Cassin's Finch, Red Crossbill, Pine Siskin, American Goldfinch
Author: Paul A. Johnsgard
Publisher: Lulu.com
ISBN: 1609620402
Category : Nature
Languages : en
Pages : 254
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Book Description
An account of the birds of the Bighorn area of Montana, including descriptions of vegetation zones and bird distributions; notes on regional birding loops, birding locations, and site descriptions; species accounts; and a discussion of the zoogeographic significance and other ecological aspects of the bird life of the Bighorn Mountains.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 260
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Book Description
Author:
Publisher: Academic Press
ISBN: 0123847206
Category : Nature
Languages : en
Pages : 5485
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Book Description
The 7-volume Encyclopedia of Biodiversity, Second Edition maintains the reputation of the highly regarded original, presenting the most current information available in this globally crucial area of research and study. It brings together the dimensions of biodiversity and examines both the services it provides and the measures to protect it. Major themes of the work include the evolution of biodiversity, systems for classifying and defining biodiversity, ecological patterns and theories of biodiversity, and an assessment of contemporary patterns and trends in biodiversity. The science of biodiversity has become the science of our future. It is an interdisciplinary field spanning areas of both physical and life sciences. Our awareness of the loss of biodiversity has brought a long overdue appreciation of the magnitude of this loss and a determination to develop the tools to protect our future. Second edition includes over 100 new articles and 226 updated articles covering this multidisciplinary field— from evolution to habits to economics, in 7 volumes The editors of this edition are all well respected, instantly recognizable academics operating at the top of their respective fields in biodiversity research; readers can be assured that they are reading material that has been meticulously checked and reviewed by experts Approximately 1,800 figures and 350 tables complement the text, and more than 3,000 glossary entries explain key terms
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 934
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1166
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Book Description
