Conservation and Management of Whitebark Pine Ecosystems PDF Download
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Author: Dana L. Perkins
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 93
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Book Description
Whitebark pine (Pinus albicaulis Engelm.), an important component of western high-elevation forests, has been declining in both the United States and Canada from the combined effects of the exotic disease white pine blister rust (caused by the pathogen Cronartium ribicola), mountain pine beetle (Dendroctonus ponderosae) outbreaks, altered fire regimes, and climate change. These combined threats have led to the recent listing of whitebark pine as a high priority Candidate Species under the Endangered Species Act.
Author: Dana L. Perkins
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 93
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Book Description
Whitebark pine (Pinus albicaulis Engelm.), an important component of western high-elevation forests, has been declining in both the United States and Canada from the combined effects of the exotic disease white pine blister rust (caused by the pathogen Cronartium ribicola), mountain pine beetle (Dendroctonus ponderosae) outbreaks, altered fire regimes, and climate change. These combined threats have led to the recent listing of whitebark pine as a high priority Candidate Species under the Endangered Species Act.
Author: Dana L. Perkins
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 93
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Book Description
Whitebark pine (Pinus albicaulis Engelm.), an important component of western high-elevation forests, has been declining in both the United States and Canada from the combined effects of the exotic disease white pine blister rust (caused by the pathogen Cronartium ribicola), mountain pine beetle (Dendroctonus ponderosae) outbreaks, altered fire regimes, and climate change. These combined threats have led to the recent listing of whitebark pine as a high priority Candidate Species under the Endangered Species Act.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Diana F. Tomback
Publisher: Island Press
ISBN: 9781597263207
Category : Nature
Languages : en
Pages : 462
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Book Description
Whitebark pine is a dominant feature of western high-mountain regions, offering an important source of food and high-quality habitat for species ranging from Clark's nutcracker to the grizzly bear. But in the northwestern United States and southwestern Canada, much of the whitebark pine is disappearing. Why is a high-mountain species found in places rarely disturbed by humans in trouble? And what can be done about it.Whitebark Pine Communities addresses those questions, explaining how a combination of altered fire regimes and fungal infestation is leading to a rapid decline of this once abundant -- and ecologically vital -- species. Leading experts in the field explain what is known about whitebark pine communities and their ecological value, examine its precarious situation, and present the state of knowledge concerning restoration alternatives. The book. presents an overview of the ecology and status of whitebark pine communities offers a basic understanding of whitebark pine taxonomy, distribution, and ecology, including environmental tolerances, community disturbance processes, regeneration processes, species interactions, and genetic population structure identifies the threats to whitebark pine communities explains the need for management intervention surveys the extent of impact and losses to dateMore importantly, the book clearly shows that the knowledge and management tools are available to restore whitebark pine communities both locally and on a significant scale regionally, and it provides specific information about what actions can and must be taken.Whitebark Pine Communities offers a detailed portrait of the ecology of whitebark pine communities and the current threats to them. It brings together leading experts to provide in-depth information on research needs, management approaches, and restoration activities, and will be essential reading for ecologists, land managers, and anyone concerned with the health of forest ecosystems in the western United States.
Author:
Publisher:
ISBN:
Category : Alpine regions
Languages : en
Pages : 396
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Book Description
Author: Safiya Samman
Publisher:
ISBN:
Category : Blister rust
Languages : en
Pages : 16
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Book Description
Author: U.s. Department of Agriculture
Publisher: Createspace Independent Pub
ISBN: 9781480147058
Category : Nature
Languages : en
Pages : 118
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Book Description
Whitebark pine (Pinus albicaulis) forests are declining across most of their range in North America because of the combined effects of mountain pine beetle (Dendroctonus ponderosae) outbreaks, fire exclusion policies, and the exotic pathogen Cronartium ribicola, which infects five-needle white pines and causes the disease white pine blister rust. The loss of this high-elevation tree species poses serious consequences for upper subalpine ecosystems, both in terms of impacts on biodiversity and losses in ecosystem processes; whitebark pine is now a candidate species for listing under the Endangered Species Act. Large, nutritious seeds produced by whitebark pine are an important food for many bird and small mammal species, as well as grizzly (Ursus arctos horribilis) and black bears (Ursus americanus), and whitebark pine communities provide habitat for many additional wildlife species. Whitebark pine seed dispersal by Clark's nutcrackers (Nucifraga columbiana) combined with hardy seedlings results in early whitebark pine community development after fire and other disturbances; whitebark pine seedlings survive on harsh, arid sites and may act as nurse trees to less hardy conifers and vegetation. Whitebark pine at higher elevations, where it is common in many regions, helps regulate snow melt and reduce soil erosion. For these collective functions, whitebark pine is considered both a keystone species for promoting community diversity and a foundation species for promoting community stability. Since more than 90 percent of whitebark pine forests exist on public land in the United States and Canada, it is important that government natural resource management agencies play an important role in ensuring future presence of this tree species by initiating concerted, coordinated, and comprehensive restoration efforts. This is best accomplished through a coordinated, trans-boundary restoration strategy that includes shared infrastructure and expertise for conserving seeds, growing blister rust-resistant seedlings, protecting trees, restoring ecosystem processes, and promoting natural regeneration. We detail a multi-scale strategy for restoring whitebark pine across its range in the western United States and Canada. The strategy was compiled by researchers, land managers, and resource specialists for use as a reference for prioritizing, designing, and implementing successful whitebark pine restoration activities across many scales from stands to landscapes to its entire range. The whitebark pine restoration strategy consists of the following principles: (1) promote rust resistance, (2) conserve genetic diversity, (3) save seed sources, and (4) employ restoration treatments. These guiding principles are then used to implement the whitebark pine restoration strategy using a set of possible actions: 1. assess condition, 2. plan activities, 3. reduce pest impacts, 4. gather seed, 5. grow seedlings, 6. protect seed sources, 7. implement restoration treatments, 8. plant burned areas, 9. support research, and 10. monitor activities. The strategy is also organized by six spatial scales of analysis and organization: 1. range-wide, 2. region (National Forest Region or Provincial Regions), 3. forest (National Forest, National Park, and Canadian Forest District), 4. landscape (watershed or landform), 5. stand, and 6. tree. At each scale, we present four important factors in the restoration strategy: (1) assessment, (2) restoration actions, (3) management concerns, and (4) an example. Strategic restoration plans are presented for the coarse-scale strategies, while illustrated examples are presented for the finer scales (tree, stand, and landscape).
Author: Robert Keane
Publisher: CreateSpace
ISBN: 9781506139791
Category :
Languages : en
Pages : 142
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Book Description
Whitebark pine (Pinus albicaulis) forests are declining across most of their range in North America because of the combined effects of three factors: (1) several major mountain pine beetle epidemics that occurred over the last 70 years, (2) an extensive and successful fire exclusion management policy, and (3) extensive infections of the exotic white pine blister rust fungus (Cronartium ribicola). The loss of whitebark pine is serious for upper subalpine ecosystems because it is considered a keystone species across most of its range, producing large seeds that are an important food source for more than 110 animal species.
Author:
Publisher:
ISBN:
Category : Whitebark pine
Languages : en
Pages : 108
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Book Description
Whitebark pine (Pinus albicaulis), an important component of western high-elevation forests, has been declining in both the United States and Canada since the early Twentieth Century from the combined effects of mountain pine beetle (Dendroctonus ponderosae) outbreaks, fire exclusion policies, and the spread of the exotic disease white pine blister rust (caused by the pathogen Cronartium ribicola). The pine is now a candidate species for listing under the Endangered Species Act. Within the last decade, with major surges of pine beetle and increasing damage and mortality from blister rust, the cumulative whitebark pine losses have altered high-elevation community composition and ecosystem processes in many regions. Whitebark pine is a keystone species because of its various roles in supporting community diversity and a foundation species for its roles in promoting community development and stability. Since more than 90 percent of whitebark pine forests occur on public lands in the United States and Canada, maintaining whitebark pine communities requires a coordinated and trans-boundary effort across Federal and provincial land management agencies to develop a comprehensive strategy for restoration of this declining ecosystem. We outline a range-wide strategy for maintaining whitebark pine populations in high mountain areas based on the most current knowledge of the efficacy of techniques and differences in their application across communities. The strategy is written as a general guide for planning, designing, implementing, and evaluating fine-scale restoration activities for whitebark pine by public land management agencies, and to encourage agency and inter-agency coordination for greater efficiency. The strategy is organized into six scales of implementation, and each scale is described by assessment factors, restoration techniques, management concerns, and examples.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 172
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Book Description