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Articles 1 - 30 of 340
Full-Text Articles in Life Sciences
Economics And Operational Decision Constraints Of Small-Diameter Tree Harvesting, Libin Thaikkattil Louis
Economics And Operational Decision Constraints Of Small-Diameter Tree Harvesting, Libin Thaikkattil Louis
Electronic Theses and Dissertations
Sustainably managed forests are crucial in balancing trade-off between various ecosystem functions and optimum product utilization. Improving the utilization of these renewable resources through diversified forest wood products faces various socio-economic, ecological, and cultural challenges. A major challenge faced by forest managers in the Northeastern United States is overstocked stands dominated by small-diameter trees (SDT). Major woody portion of the harvested residues is constituted by SDT and are typically of low value. Data from the national inventory indicates a high number of SDT in Northeastern forests such that the average size of all trees in the region is less than …
Identification And Characterization Of Forest Fire Risk Zones Leveraging Machine Learning Methods, Joshua Balson, Matt Chinchilla, Cam Lu, Jeff Washburn, Nibhrat Lohia
Identification And Characterization Of Forest Fire Risk Zones Leveraging Machine Learning Methods, Joshua Balson, Matt Chinchilla, Cam Lu, Jeff Washburn, Nibhrat Lohia
SMU Data Science Review
Across the United States, record numbers of wildfires are observed costing billions of dollars in property damage, polluting the environment, and putting lives at risk. The ability of emergency management professionals, city planners, and private entities such as insurance companies to determine if an area is at higher risk of a fire breaking out has never been greater. This paper proposes a novel methodology for identifying and characterizing zones with increased risks of forest fires. Methods involving machine learning techniques use the widely available and recorded data, thus making it possible to implement the tool quickly.
Smokejumper Obituary: Howells, Dan M. (Mccall 1974), National Smokejumper Association
Smokejumper Obituary: Howells, Dan M. (Mccall 1974), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Hall, Dann Jay (Anchorage 1972), National Smokejumper Association
Smokejumper Obituary: Hall, Dann Jay (Anchorage 1972), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Soil Microbial Community Dynamics In Response To Prescribed Extreme Fires Following Juniperus Virginiana Invasion In The Loess Canyons Of Nebraska, Julie A. Fowler
Soil Microbial Community Dynamics In Response To Prescribed Extreme Fires Following Juniperus Virginiana Invasion In The Loess Canyons Of Nebraska, Julie A. Fowler
School of Natural Resources: Dissertations, Theses, and Student Research
In Nebraska and other regions of the Great Plains, the conifer Juniperus virginiana (eastern redcedar) is converting grasslands to dense woodlands. This is driven by the interacting drivers of fire suppression, altered grazing regimes, climate change and other anthropogenic factors, impacting the provisioning of ecosystem services. This vegetation state transition modifies water resource regulation and biogeochemical cycles leading to altered edaphic properties including soil microbial community composition. To restore these grasslands and control J. virginiana spread, prescribed extreme burns are implemented as a management tool through local prescribed burn associations. We hypothesized that the alternative state transition to dense J. …
Smokejumper Obituary: Anderson, Gary T. (Missoula 1963), National Smokejumper Association
Smokejumper Obituary: Anderson, Gary T. (Missoula 1963), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Estimating And Modeling Transpiration Of A Mountain Meadow Encroached By Conifers Using Sap Flow Measurements, Simon Joseph Marks
Estimating And Modeling Transpiration Of A Mountain Meadow Encroached By Conifers Using Sap Flow Measurements, Simon Joseph Marks
Master's Theses
Mountain meadows in the western USA are experiencing increased rates of conifer encroachment due to climate change and land management practices. Past research has focused on conifer removal as a meadow restoration strategy, but there has been limited work on conifer transpiration in a pre-restoration state. Meadow restoration by conifer removal has the primary goal of recovering sufficient growing season soil moisture necessary for endemic, herbaceous meadow vegetation. Therefore, conifer water use represents an important hydrologic output toward evaluating the efficacy of this active management approach. This study quantified and evaluated transpiration of encroached conifers in a mountain meadow using …
Habitat Assessment Of Ozark Glades Using Selected Epigeal Predatory Arthropods, Austin Key Jones
Habitat Assessment Of Ozark Glades Using Selected Epigeal Predatory Arthropods, Austin Key Jones
Graduate Theses and Dissertations
Epigeal predatory arthropods were collected with pitfall-style traps in nine sandstone glades of varying ecological stages, and management histories, in the Ozarks of Northern Arkansas over three years. These sites were categorized into three Site Types; Intact, high quality glades; Degraded, forest-encroached glades, and Restored glades which had received woody vegetation removal and burning. Collections of ground spiders (Gnaphosidae), predatory ground beetles (Carabidae), and the sole species of scorpion present in the Ozarks, Centruroides vittatus, were reported on as well as the applicability of arthropod collection methods for glade habitat assessment. Habitat characteristics were recorded for each site and analyzed …
Growth, Browsing And Mortality In Mixed Oak And Pine Plantings, Heather Slayton
Growth, Browsing And Mortality In Mixed Oak And Pine Plantings, Heather Slayton
Masters Theses
The purpose of this project was to determine if different oak/pine arrangements elicited potential beneficial interactions that affected seedling growth, mortality and overall protection from deer browsing. Northern red oak (Quercus rubra L.) and shortleaf pine (Pinus echinata Mill.) were planted together and alone in six different planting patterns and spacings, replicated over three blocks in recent clearcuts in east Tennessee, USA. Each block consisted of two monocultures planted at a 3.0 by 3.0 meter (m) spacing and four multi-cropped treatments planted at varying spatial arrangements (0.3 m, 1.0 m, 1.5 m, and 3.0 m) from neighboring shortleaf …
Global Forces Of Change: Implications For Forest-Poverty Dynamics, Priya Shyamsundar, Laura Aileen Sauls, Jennifer Zavaleta Cheek, Kira Sullivan-Wiley, J.T. Erbaugh, P. P. Krishnapriya
Global Forces Of Change: Implications For Forest-Poverty Dynamics, Priya Shyamsundar, Laura Aileen Sauls, Jennifer Zavaleta Cheek, Kira Sullivan-Wiley, J.T. Erbaugh, P. P. Krishnapriya
Natural Resource Management Faculty Publications
This article examines global trends likely to influence forests and tree-based systems and considers the poverty implications of these interactions. The trends, identified through a series of expert discussions and review of the literature, include: (i) climatic impacts mediated through changes in forests, (ii) growth in commodity markets, (iii) shifts in private and public forest sector financing, (iv) technological advances and rising interconnectivity, (v) global socio-political movements, and (vi) emerging infectious diseases. These trends bring opportunities and risks to the forest-reliant poor. A review of available evidence suggests that in a business-as-usual scenario, the cumulative risks posed by these global …
Smokejumper Obituary: Price, Jack Edward (Idaho City 1950), National Smokejumper Association
Smokejumper Obituary: Price, Jack Edward (Idaho City 1950), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Monitoring Fine-Scale Forest Health Using Unmanned Aerial Systems (Uas) Multispectral Models, Benjamin T. Fraser, Russell G. Congalton
Monitoring Fine-Scale Forest Health Using Unmanned Aerial Systems (Uas) Multispectral Models, Benjamin T. Fraser, Russell G. Congalton
Faculty Publications
Forest disturbances—driven by pests, pathogens, and discrete events—have led to billions of dollars in lost ecosystem services and management costs. To understand the patterns and severity of these stressors across complex landscapes, there must be an increase in reliable data at scales compatible with management actions. Unmanned aerial systems (UAS or UAV) offer a capable platform for collecting local scale (e.g., individual tree) forestry data. In this study, we evaluate the capability of UAS multispectral imagery and freely available National Agricultural Imagery Program (NAIP) imagery for differentiating coniferous healthy, coniferous stressed, deciduous healthy, deciduous stressed, and degraded individual trees throughout …
Smokejumper Obituary: Van Noy, Ronald M. “Ron” (Missoula 1953), National Smokejumper Association
Smokejumper Obituary: Van Noy, Ronald M. “Ron” (Missoula 1953), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Hornumg, William Everett “Bill” (Missoula 1959), National Smokejumper Association
Smokejumper Obituary: Hornumg, William Everett “Bill” (Missoula 1959), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Steck, William David “Bill” (Pilot 0000), National Smokejumper Association
Smokejumper Obituary: Steck, William David “Bill” (Pilot 0000), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Biocontrol Of The Emerald Ash Borer: An Adapted Nicholson-Bailey Model, Michael Kerckhove, Shuheng Chen
Biocontrol Of The Emerald Ash Borer: An Adapted Nicholson-Bailey Model, Michael Kerckhove, Shuheng Chen
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Basal Sprout Centered Management Of Vector-Borne Tree Diseases, Kelly Buch
Basal Sprout Centered Management Of Vector-Borne Tree Diseases, Kelly Buch
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Smokejumper Obituary: Cummings, Charles Edwin “Charlie” (Missoula 1955), National Smokejumper Association
Smokejumper Obituary: Cummings, Charles Edwin “Charlie” (Missoula 1955), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Willingness Of Non-Industrial Private Forest Landowners To Obtain A Private Versus Public Consultation, Erika Largacha
Willingness Of Non-Industrial Private Forest Landowners To Obtain A Private Versus Public Consultation, Erika Largacha
LSU Master's Theses
Promoting conservation practices among family forests landowners play a critical role to enhance forest health and ecosystem services. Several certification programs recognize such efforts, but participation among landowners varies based on their characteristics, program requirements, and incentives. One crucial step of certification is to obtain a forest management plan, but acquisition among landowners remains extremely low. Several studies suggest connecting landowners with foresters as the key element towards the adoption of forest management plans. Because foresters are typically employed by public forestry agencies or as private self-employed consultants, landowners' willingness to work with either may differ. As far as we …
Smokejumper Obituary: Rea, Charles Dale (Missoula 1967), National Smokejumper Association
Smokejumper Obituary: Rea, Charles Dale (Missoula 1967), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Fuel Inventory Report For Montana De Oro State Park, Spencer Gordon
Fuel Inventory Report For Montana De Oro State Park, Spencer Gordon
Master of Science in Environmental Sciences and Management Projects
Within the last century anthropogenic effects have shifted fire resilient habitats that are adapted to thousands of years of frequent low intensity fires to landscapes that are susceptible to extreme fire behavior which threaten human assets and sensitive natural resources. Entities that manage forests will need to prioritize fuel reduction as a management tool to promote forest health and mitigate hazardous fire conditions. A fuel inventory of a eucalyptus forest at Montana De Oro State Park in Los Osos, CA was collected using a combination of Brown’s 1973 and Brown’s 1982 methods. The fuel inventory revealed the eucalyptus forest yielded …
Smokejumper Obituary: Schmidt, Gerald Evert (Missoula 1954), National Smokejumper Association
Smokejumper Obituary: Schmidt, Gerald Evert (Missoula 1954), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Bell, Douglas E. “Doug” (Missoula 0000), National Smokejumper Association
Smokejumper Obituary: Bell, Douglas E. “Doug” (Missoula 0000), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Hannon, Gary Clark (Missoula 1960), National Smokejumper Association
Smokejumper Obituary: Hannon, Gary Clark (Missoula 1960), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Henderson, Wallace D. “Wally” (Mccall 1946), National Smokejumper Association
Smokejumper Obituary: Henderson, Wallace D. “Wally” (Mccall 1946), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Assessing The Structure And Function Of Utility Forests In Massachusetts, Ryan Suttle
Assessing The Structure And Function Of Utility Forests In Massachusetts, Ryan Suttle
Masters Theses
Trees in a community provide numerous benefits, including reducing ambient temperature, removing gaseous and particulate pollutants from the air, sequestering atmospheric carbon, and improving stormwater retention and filtration. However, trees also pose risks, especially in proximity to overhead utility lines. Trees near utility lines cause a large proportion of electrical power outages. As such, trees must be frequently and often severely pruned away from lines to minimize this risk. Presumably, community trees not growing near overhead utility lines are not pruned as frequently or severely. The objectives of this study are to (i) assess factors related to both individual trees …
The Efficacy Of Habitat Conservation Assistance Programs For Family Forest Owners In Vermont, Margaret E. Harrington
The Efficacy Of Habitat Conservation Assistance Programs For Family Forest Owners In Vermont, Margaret E. Harrington
Masters Theses
The future of Vermont’s 1.8 million hectares (4.5 million acres) of forest habitat will be largely determined by the decisions of family forest owners, who collectively own 60% of the state’s forested land. To promote management for wildlife habitat, government agencies and non-governmental partnerships provide technical and financial support to family forest owners in the form of conservation assistance programs. In Chapter 1, I qualitatively compared the efficacy of two types of conservation assistance programs available in Vermont: traditional programs offered through the Natural Resources Conservation Service, and a simplified, accelerated program offered through a non-governmental partnership called Woods, Wildlife, …
Can Volunteers Learn To Prune Trees?, Ryan W. Fawcett
Can Volunteers Learn To Prune Trees?, Ryan W. Fawcett
Masters Theses
Volunteer pruning programs are becoming an important tool in helping municipal arborists manage the urban forest. To find if volunteers can learn to prune trees well, the ability of volunteers to prune small trees after receiving training was assessed in three different ways, a written exam, a pruning prescription assessment, and a pruning cut assessment. Volunteers were assigned to either an indoor, lecture-based training or an outdoor, hands-on training session. After the training volunteers were asked to complete a written exam to gauge their understanding of the curriculum. Volunteers were then asked to perform a pruning prescription on small street …
Smokejumper Obituary: Evenson, Paul H. (Missoula 1973), National Smokejumper Association
Smokejumper Obituary: Evenson, Paul H. (Missoula 1973), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Meeting Minutes, October 13th, 2021, National Smokejumper Association Board Of Directors
Meeting Minutes, October 13th, 2021, National Smokejumper Association Board Of Directors
National Smokejumper Association Meeting Minutes
Agenda: 1. Call to Order; 2. Consent Agenda; 3. Bob McKean introduced Pete Lannan, USFS Smokejumper Program, and Phil Lind, BLM Smokejumper Program; 4. Investment and Treasurer’s Report; 5. Financial Report; 6. 2021 Fire Year; 7. 1971 Rookie Class Reunion and Miss Montana; 8. Possible NSA Positions; 9. Trails and FS Museum Updates; 10. Keep the Flame Legacy Jump List; 11. Scholarship Project; 12. Membership Fee Revision Recommendation. Refer to handout #11; 13. Reunion. 14. Wrap-up; 15. Adjournment;