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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 236
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 236
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 240
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Book Description
Author: Cathy W. Dahms
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 110
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Book Description
This report documents an ecological assessment of forest ecosystem health in the Southwest. The assessment focuses at the regional level and mostly pertains to lands administered by the National Forest System. Information is presented for use by forest and district resource managers as well as collaborative partners in the stewardship of Southwestern forests. The report establishes a scientific basis for conducting forest health projects, provides a context for planning ecosystem restoration, and contributes to the understanding of the physical, biological, and human dimensions of these ecosystems. Chapters describe Southwestern forest ecosystems of the past, changes since the Colonial Period, and the implications of those changes for the health of current and future forests. Opportunities, tools, and research needs for improving ecosystem sustainability are also identified.
Author:
Publisher:
ISBN:
Category : Goshawk
Languages : en
Pages : 64
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Book Description
Author: Russell T. Graham
Publisher:
ISBN:
Category : Goshawk
Languages : en
Pages : 64
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Book Description
This assessment describes northern goshawk (Accipiter gentilis) habitat in the State of Utah. Because of fire exclusion, insect and disease epidemics, timber harvest, livestock grazing, or a combination of these factors the forests and woodlands of Utah have changed drastically since the early 1900's. Forests are now dominated by mid- and late successional species (Douglas-fir, white fir, and subalpine fir) rather than the early successional species (lodgepole and ponderosa pine). Along with these changes came suspected declines in goshawk populations. Goshawk habitat in Utah was assessed using potential vegetation types, current vegetation types, and expert knowledge. Subalpine fir (17 percent) and quaking aspen (10 percent) potential vegetation types were the most common forest types in the State. Nearly 95 percent of the subalpine fir potential vegetation type was rated as high or medium for nesting habitat, while nearly 90 percent of the quaking aspen potential vegetation type was rated as high or medium for nesting. Similarly, combining nesting and foraging preferences 70 percent of the subalpine fir potential vegetation type is rated as either high value or optimum habitat. In addition, throughout Utah all of the high value habitats are well connected. The present conditions of the forests and woodlands of Utah are prone to insect and disease epidemics in addition to the risk of stand replacing fires. To ensure the goshawk's continued existence in Utah will require the restoration of these degraded habitats and the protection of native processes.
Author:
Publisher:
ISBN:
Category : Ecosystem management
Languages : en
Pages : 100
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Book Description
Author: United States. Forest Service. Southwestern Region. Northern Goshawk Scientific Committee
Publisher:
ISBN:
Category : Goshawk
Languages : en
Pages : 208
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Book Description
Author: Wallace Covington
Publisher: DIANE Publishing
ISBN: 078813986X
Category :
Languages : en
Pages : 99
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Book Description
This conference was meant to facilitate the development of mutually beneficial human-wildland interactions by exploring ways in which to restore and sustain land health, as well as that of dependent human communities, in an adaptive ecosystem management context. General adaptive ecosystem restoration and management principles were discussed, however the conference was specifically designed to encourage cooperative North American work. The primary focus was on long-needled pine (principally ponderosa and closely related pines) and mixed-conifer landscape systems in the Western U.S.
Author: Peter F. Ffolliott
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 236
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1586
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Book Description
