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Articles 1861 - 1890 of 4004
Full-Text Articles in Forest Management
Smokejumper Obituary: Pitts, Donald W. (Missoula 1955), National Smokejumper Association
Smokejumper Obituary: Pitts, Donald W. (Missoula 1955), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Surveys Of Southern Flying Squirrel Activity Following Timber Harvest In Southern Indiana, Joseph W. Eisinger, Elizabeth A. Flaherty, Stephanie E. Trapp
Surveys Of Southern Flying Squirrel Activity Following Timber Harvest In Southern Indiana, Joseph W. Eisinger, Elizabeth A. Flaherty, Stephanie E. Trapp
The Summer Undergraduate Research Fellowship (SURF) Symposium
Southern flying squirrels (Glaucomys volans) are gliding small mammals that are ecologically important seed dispersers and prey species across their wide range, which extends from southern Canada to Central America. Because of their reliance on forest structure for efficient movement and on forest composition for hard mast production to provide winter food items, habitat use by G. volans may be impacted by timber harvest. Responses of G. volans to timber harvests remains understudied throughout their range, and studies are especially lacking within the Central Hardwoods Region that includes Indiana. Our study in the Hardwood Ecosystem Experiment (HEE) in southern Indiana …
Seedling Uptake And Fate Of Soil-Applied Capsaicin, A Potential Browse Deterrent, Carmen K. Dobbs, Joshua L Sloan, Douglass F. Jacobs
Seedling Uptake And Fate Of Soil-Applied Capsaicin, A Potential Browse Deterrent, Carmen K. Dobbs, Joshua L Sloan, Douglass F. Jacobs
The Summer Undergraduate Research Fellowship (SURF) Symposium
Seedling damage due to browse constitutes a major challenge to afforestation and reforestation efforts in the Central Hardwood Forest region of the USA. Many efforts have been made to deter herbivores, but the costs, implementation methods, and relative ineffectiveness of existing mitigation options often preclude operational implementation. An alternate means of deterring wildlife browse is capsaicin, a hot pepper concentrate, which has been reported to decrease herbivory of tree seedlings and is available in a controlled-release form designed to act systemically following application to the soil and subsequent plant uptake. However, the degree to which seedlings are capable of absorbing …
Spatially Nonrandom Tree Mortality And Ingrowth Maintain Equilibrium Pattern In An Old-Growth Pseudotsuga–Tsuga Forest, James A. Lutz, Andrew J. Larson, Tucker J. Furniss, Daniel C. Donato, James A. Freund, Mark E. Swanson, Kenneth J. Bible, Jiquan Chen, Jerry F. Franklin
Spatially Nonrandom Tree Mortality And Ingrowth Maintain Equilibrium Pattern In An Old-Growth Pseudotsuga–Tsuga Forest, James A. Lutz, Andrew J. Larson, Tucker J. Furniss, Daniel C. Donato, James A. Freund, Mark E. Swanson, Kenneth J. Bible, Jiquan Chen, Jerry F. Franklin
Forest Management Faculty Publications
Mortality processes in old-growth forests are generally assumed to be driven by gap-scale disturbance, with only a limited role ascribed to density-dependent mortality, but these assumptions are rarely tested with data sets incorporating repeated measurements. Using a 12-ha spatially explicit plot censused 13 years apart in an approximately 500-year-old Pseudotsuga–Tsuga forest, we demonstrate significant density-dependent mortality and spatially aggregated tree recruitment. However, the combined effect of these strongly nonrandom demographic processes was to maintain tree patterns in a state of dynamic equilibrium. Density-dependent mortality was most pronounced for the dominant latesuccessional species, Tsuga heterophylla. The long-lived, early-seral Pseudotsuga menziesii …
Meanings And Robustness: Propositions For Enhancing Benefit Sharing In Social-Ecological Systems, Ernita Van Wyk, Charles Breen, Wayne A. Freimund
Meanings And Robustness: Propositions For Enhancing Benefit Sharing In Social-Ecological Systems, Ernita Van Wyk, Charles Breen, Wayne A. Freimund
Society and Conservation Faculty Publications
Given increased pressure on natural resources to deliver benefits, complex trade-offs and the regulation of behaviours in relation to benefits is of key concern. Behaviours that signify resistance to the rules according to which benefits are allocated prompt us to consider causal links and feedbacks between benefits, perceptions of benefits, meanings attached to the benefits, and the regulatory instruments that mediate the distribution of benefits. An understanding of how meanings influence the perception of benefits exposes the complexity inherent in how people perceive and allocate value to natural resource benefits. Meanings are personal, sometimes overlapping, context dependent and variable across …
Smokejumper Obituary: Galbraith, Art Leeroy (North Cascades 1961), National Smokejumper Association
Smokejumper Obituary: Galbraith, Art Leeroy (North Cascades 1961), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Smith, Timothy J. (Missoula 1976), National Smokejumper Association
Smokejumper Obituary: Smith, Timothy J. (Missoula 1976), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Newbrough, John Robert (Mccall 1953), National Smokejumper Association
Smokejumper Obituary: Newbrough, John Robert (Mccall 1953), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Zehr, Richard S. "Dick" (Missoula 1943), National Smokejumper Association
Smokejumper Obituary: Zehr, Richard S. "Dick" (Missoula 1943), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
The Fire-Oak Literature Of Eastern North America: Synthesis And Guidelines, Patrick D. Brose, Daniel C. Dey, Thomas A. Waldrop
The Fire-Oak Literature Of Eastern North America: Synthesis And Guidelines, Patrick D. Brose, Daniel C. Dey, Thomas A. Waldrop
Joint Fire Science Program Synthesis Reports
Guidelines for using prescribed fire to regenerate and restore upland oak forests, woodlands, and savannas in eastern North America were developed by synthesizing the results of more than 100 scientific publications. The first four chapters provide background information on the values of oak ecosystems, eastern fire history, oak’s adaptations to fire, and the findings of fire-oak research conducted over the past 50 years. The final chapter synthesizes that background information into guidelines that explain how to use prescribed fire to facilitate oak seedling establishment, release oak reproduction from competing mesophytic hardwoods, and rehabilitate open oak woodlands, oak savannas, and scrub …
A Win-Win On Agricultural Lands: Creating Wildlife Habitat Through Agroforestry, Gary Bentrup
A Win-Win On Agricultural Lands: Creating Wildlife Habitat Through Agroforestry, Gary Bentrup
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
With increasing demands from society for limited resources, agroforestry will likely be one source of solutions as people find it increasingly necessary to achieve multiple social, economic, and ecological objectives on the same plot of land. Indications are that this is a growing field, so wildlife biologists of the future may want to consider incorporating agroforestry into their career development.
Mass And Nutrient Loss In Decaying Hardwood Boles At Hubbard Brook, Chris E. Johnson
Mass And Nutrient Loss In Decaying Hardwood Boles At Hubbard Brook, Chris E. Johnson
Civil and Environmental Engineering - All Scholarship
No abstract provided.
Can Fire Atlas Data Improve Species Distribution Model Projections?, Shawn M. Crimmins, Solomon Z. Dobrowski, Alison R. Mynsberge, Hugh D. Safford
Can Fire Atlas Data Improve Species Distribution Model Projections?, Shawn M. Crimmins, Solomon Z. Dobrowski, Alison R. Mynsberge, Hugh D. Safford
Forest Management Faculty Publications
Correlative species distribution models (SDMs) are widely used in studies of climate change impacts, yet are often criticized for failing to incorporate disturbance processes that can influence species distributions. Here we use two temporally independent data sets of vascular plant distributions, climate data, and fire atlas data to examine the influence of disturbance history on SDM projection accuracy through time in the mountain ranges of California, USA. We used hierarchical partitioning to examine the influence of fire occurrence on the distribution of 144 vascular plant species and built a suite of SDMs to examine how the inclusion of fire-related predictors …
Smokejumper Obituary: Chambers, Dwight G. (Missoula 1966), National Smokejumper Association
Smokejumper Obituary: Chambers, Dwight G. (Missoula 1966), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Alexander, James A. "Smokey" (Missoula 1940), National Smokejumper Association
Smokejumper Obituary: Alexander, James A. "Smokey" (Missoula 1940), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Theubet, James H. (North Cascades 1958), National Smokejumper Association
Smokejumper Obituary: Theubet, James H. (North Cascades 1958), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Fire Activity And Severity In The Western Us Vary Along Proxy Gradients Representing Fuel Amount And Fuel Moisture, Sean A. Parks, Marc-Andrè Parisien, Carol Miller, Solomon Z. Dobrowski
Fire Activity And Severity In The Western Us Vary Along Proxy Gradients Representing Fuel Amount And Fuel Moisture, Sean A. Parks, Marc-Andrè Parisien, Carol Miller, Solomon Z. Dobrowski
Forest Management Faculty Publications
Numerous theoretical and empirical studies have shown that wildfire activity (e.g., area burned) at regional to global scales may be limited at the extremes of environmental gradients such as productivity or moisture. Fire activity, however, represents only one component of the fire regime, and no studies to date have characterized fire severity along such gradients. Given the importance of fire severity in dictating ecological response to fire, this is a considerable knowledge gap. For the western US, we quantify relationships between climate and the fire regime by empirically describing both fire activity and severity along two climatic water balance gradients, …
Smokejumper Obituary: Hebrank, Al (North Cascades 1952), National Smokejumper Association
Smokejumper Obituary: Hebrank, Al (North Cascades 1952), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Comparing Population Density Estimation Techniques For Columbia Black-Tailed Deer (Odocoileus Hemionus Columbianus): Fecal Standing Crop And Distance Sampling Methods, Jubilee D. Brenneman
Comparing Population Density Estimation Techniques For Columbia Black-Tailed Deer (Odocoileus Hemionus Columbianus): Fecal Standing Crop And Distance Sampling Methods, Jubilee D. Brenneman
Honors Projects
I estimated deer density and population size on Blakely Island, WA, using the fecal standing crop (FSC) method described by Martin et al. (2011). I compared the FSC method with a well established and broadly applicable estimation method, distance sampling. Additionally, architecture of a commonly browsed shrub, Ocean Spray (Holodiscus discolor), was measured as an indicator of browsing pressure. Fecal standing crop was estimated by counting pellet groups along 26, 100 x 2m line transects. Deer density was estimated using these data and the equation derived by Martin et al. (2011). Distance sampling consisted of recording perpendicular distance …
The Gordon Natural Area (Gna): (Our Ecological Treasure Island In A Sea Of Development) 2013: The 40th Anniversary, Gerard Hertel
The Gordon Natural Area (Gna): (Our Ecological Treasure Island In A Sea Of Development) 2013: The 40th Anniversary, Gerard Hertel
Gordon Natural Area History & Strategic Plan Documents
No abstract provided.
Investigating Meter Scale Topographic Variation As A Factor Of Monterey Pine (Pinus Radiata) Growing Conditions At Kenneth Norris Rancho Marino Reserve, Cambria, Ca, William J. Meyst
Natural Resources Management and Environmental Sciences
Endemic Monterey pine (Pinus radiata) is limited to three locations in California due to its unique ecological requirements. This project was conducted to investigate spatial growth patterns ofMonterey pine over complex ground surfaces. The coastal hills of Rancho Marino Reserve, Cambria, were surveyed using four 150-m transects to quantify and record ground surface features and growing conditions ofMonterey pine. Changes in elevation of each transect were measured using an Abney level. Linear ground surfaces were found at 86% (344 of 400) of survey nodes. Convex ground surfaces were found at 10.5% of survey nodes (42 of 400). Of …
Smokejumper Obituary: Krebs, Luke Timothy (Mccall 1988), National Smokejumper Association
Smokejumper Obituary: Krebs, Luke Timothy (Mccall 1988), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Tourism And Protected Areas: A Growing Nexus Of Challenge And Opportunity, Stephen F. Mccool, Anna Spenceley
Tourism And Protected Areas: A Growing Nexus Of Challenge And Opportunity, Stephen F. Mccool, Anna Spenceley
Society and Conservation Faculty Publications
Three significant trends are converging with the result of increasing the importance of understanding and managing the nexus of tourism and protected areas. Firstly, international travel and tourism continues to grow significantly, resulting in more people wanting to visit, learn and appreciate their natural and cultural heritage. Secondly, international conservation efforts are increasingly dependent on protected areas serving as the cornerstone of slowing (ideally stopping) the loss of biological diversity. Thirdly, demands from society on protected areas are not only increasing, they are diversifying as well. Increased demand is, in part, the result of a growing human population that competes …
The Community Economic Impacts Of Large Wildfires: A Case Study From Trinity County, California, Emily Jane Davis, Cassandra Moseley, Max Nielsen-Pincus, Pamela J. Jakes
The Community Economic Impacts Of Large Wildfires: A Case Study From Trinity County, California, Emily Jane Davis, Cassandra Moseley, Max Nielsen-Pincus, Pamela J. Jakes
Environmental Science and Management Faculty Publications and Presentations
Wildfires are increasing in severity and frequency in the American West, but there is limited understanding of their economic effects at the community level. We conducted a case study of the impacts of large wildfires in 2008 in Trinity County, California, by examining labor market, suppression spending, and qualitative interview data. We found that the 2008 fires had interrelated effects on several economic sectors in the county. Labor market data indicated a decrease in total private-sector employment and wages and an increase in public-sector employment and wages during the summer of 2008 compared to the previous year, while interviews captured …
Smokejumper Obituary: Sallee, Robert W. (Missoula 1949), National Smokejumper Association
Smokejumper Obituary: Sallee, Robert W. (Missoula 1949), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Privette, Alvan L. (Ncsb 1949), National Smokejumper Association
Smokejumper Obituary: Privette, Alvan L. (Ncsb 1949), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Penner, Arthur C. (Cave Junction 1944), National Smokejumper Association
Smokejumper Obituary: Penner, Arthur C. (Cave Junction 1944), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Informal Trails And The Spread Of Invasive Species In Urban Natural Areas: Spatial Analysis Of Informal Trails And Their Effects On Understory Plant Communities In Forest Park, Portland, Oregon, Jill Elise Van Winkle
Informal Trails And The Spread Of Invasive Species In Urban Natural Areas: Spatial Analysis Of Informal Trails And Their Effects On Understory Plant Communities In Forest Park, Portland, Oregon, Jill Elise Van Winkle
Dissertations and Theses
The risk of spread and establishment of invasive species to interior habitat within urban parks is of great concern to park managers and ecologists. Informal trails as a vector for this transmission are not well understood. To characterize effects of informal trails on understory plant communities, I conducted a study of the informal trail network in Forest Park, Portland, Oregon. The system of 382 informal trails was mapped and evaluated qualitatively, and from this population a systematic sample was selected for analysis. To identify hotspots of informal trail activity, showing the relationship of informal trails to formal trails, other park …
Smokejumper Obituary: Gossett, Robert M. (Mccall 1946), National Smokejumper Association
Smokejumper Obituary: Gossett, Robert M. (Mccall 1946), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Pell, Robert W. (North Cascades 1956), National Smokejumper Association
Smokejumper Obituary: Pell, Robert W. (North Cascades 1956), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.