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Full-Text Articles in Life Sciences
Invasive Pathogen Threatens Bird-Pine Mutualism: Implications For Sustaining A High-Elevation Ecosystem, Shawn T. Mckinney, Carl E. Fiedler, Diana F. Tomback
Invasive Pathogen Threatens Bird-Pine Mutualism: Implications For Sustaining A High-Elevation Ecosystem, Shawn T. Mckinney, Carl E. Fiedler, Diana F. Tomback
Forest Management Faculty Publications
Human-caused disruptions to seed-dispersal mutualisms increase the extinction risk for both plant and animal species. Large-seeded plants can be particularly vulnerable due to highly specialized dispersal systems and no compensatory regeneration mechanisms. Whitebark pine ( Pinus albicaulis), a keystone subalpine species, obligately depends upon the Clark's Nutcracker (Nucifraga columbiana) for dispersal of its large, wingless seeds. Clark's Nutcracker, a facultative mutualist with whitebark pine, is sensitive to rates of energy gain, and emigrates from subalpine forests during periods of cone shortages. The invasive fungal pathogen Cronartium ribicola, which causes white pine blister rust, reduces whitebark pine cone production by killing …
Fire Treatment Effects On Vegetation Structure, Fuels, And Potential Fire Severity In Western Us Forests, Scott L. Stephens, Jason J. Moghaddas, Carl Edminster, Carl E. Fiedler, Sally Haase, Michael Harrington, Jon E. Keeley, Eric E. Knapp, James D. Mciver, Kerry Metlen, Carl N. Skinner, Andrew Youngblood
Fire Treatment Effects On Vegetation Structure, Fuels, And Potential Fire Severity In Western Us Forests, Scott L. Stephens, Jason J. Moghaddas, Carl Edminster, Carl E. Fiedler, Sally Haase, Michael Harrington, Jon E. Keeley, Eric E. Knapp, James D. Mciver, Kerry Metlen, Carl N. Skinner, Andrew Youngblood
Forest Management Faculty Publications
Forest structure and species composition in many western U. S. coniferous forests have been altered through. re exclusion, past and ongoing harvesting practices, and livestock grazing over the 20th century. The effects of these activities have been most pronounced in seasonally dry, low and mid-elevation coniferous forests that once experienced frequent, low to moderate intensity,. re regimes. In this paper, we report the effects of Fire and Fire Surrogate (FFS) forest stand treatments on fuel load profiles, potential fire behavior, and fire severity under three weather scenarios from six western U. S. FFS sites. This replicated, multisite experiment provides a …
The National Fire And Fire Surrogate Study: Effects Of Fuel Reduction Methods On Forest Vegetation Structure And Fuels, Dylan W. Schwilk, Jon E. Keeley, Eric E. Knapp, James Mciver, John D. Bailey, Christopher J. Fettig, Carl Fiedler, Richy J. Harrod, Jason J. Moghaddas, Kenneth W. Outcalt, Carl N. Skinner, Scott L. Stephens, Thomas A. Waldrop, Daniel A. Yaussy, Andrew Youngblood
The National Fire And Fire Surrogate Study: Effects Of Fuel Reduction Methods On Forest Vegetation Structure And Fuels, Dylan W. Schwilk, Jon E. Keeley, Eric E. Knapp, James Mciver, John D. Bailey, Christopher J. Fettig, Carl Fiedler, Richy J. Harrod, Jason J. Moghaddas, Kenneth W. Outcalt, Carl N. Skinner, Scott L. Stephens, Thomas A. Waldrop, Daniel A. Yaussy, Andrew Youngblood
Forest Management Faculty Publications
Changes in vegetation and fuels were evaluated from measurements taken before and after fuel reduction treatments (prescribed. re, mechanical treatments, and the combination of the two) at 12 Fire and Fire Surrogate (FFS) sites located in forests with a surface. re regime across the conterminous United States. To test the relative effectiveness of fuel reduction treatments and their effect on ecological parameters we used an information-theoretic approach on a suite of 12 variables representing the overstory (basal area and live tree, sapling, and snag density), the understory (seedling density, shrub cover, and native and alien herbaceous species richness), and the …