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Articles 31 - 60 of 360
Full-Text Articles in Forest Sciences
Meeting Minutes, October 8th, 2014, National Smokejumper Association Board Of Directors
Meeting Minutes, October 8th, 2014, National Smokejumper Association Board Of Directors
National Smokejumper Association Meeting Minutes
Agenda: Call to order, introduction to site, introductions, approval of the agenda.; Approval of previous meeting minutes.; Website Committee report.; Scholarship Committee report.; Investment Committee report.; Trails Report.; Reunion Committee report.; Reunion plans for additional history gathering.; Video interviews of smokejumpers.; Report on the Evergreen Museum and the Smokejumper display.; Recognition of Guy Hurlbutt's service.; Presentation by USFS Fire Investigator.; NSA's legal counsel.; Budget Report.; Membership Report.; Merchandise Report.; Details of Mark Urban's death.; New business.; Revisit of parachute system questions.; Fund Raising ideas.; Fire Starters.; Next meeting(s).; Evaluation of meeting and travel/lodging vouchers.;
Smokejumper Obituary: Lehman, Allen Dean (Mccall 1944), National Smokejumper Association
Smokejumper Obituary: Lehman, Allen Dean (Mccall 1944), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Curtiss, Ronald Glen Olaf (Grangeville 1961), National Smokejumper Association
Smokejumper Obituary: Curtiss, Ronald Glen Olaf (Grangeville 1961), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Economic Contribution Of Agriculture And Food To Arkansas' Gross Domestic Product 1997-2012, Leah English, Jennie Popp, Wayne Miller
Economic Contribution Of Agriculture And Food To Arkansas' Gross Domestic Product 1997-2012, Leah English, Jennie Popp, Wayne Miller
AAES Research Reports and Research Bulletins
Agricultural production, processing, and retail industries are major contributors to the Arkansas economy in terms of GDP. Agriculture contributes to the economy through direct agricultural production, value-added processing, and agricultural retail activities, and it also plays an important role through its interactions with other sectors. The use of non-agricultural goods and services as inputs into the agricultural sector promotes diversified growth in Arkansas’ economy; thus agriculture remains a vital part of Arkansas’ economy. This report: 1) compares the relative size of the Agriculture and Food Sector in Arkansas with those of neighboring states, the Southeastern region of the United States, …
Taming The Software Chaos: True To Its Promise, Iftdss Eases The Burden Of Fuels Treatment Planning—And Does A Lot More Besides, Gail Wells
Joint Fire Science Program Digests
A key problem reported by the fuels treatment planning community is the difficulty and inefficiency of evaluating and then applying many planning tools and applications. Fuels specialists have struggled to find, load, and learn all the different fuels and fire planning models, not to mention the interface of running, adjusting, and inputting data specific to each model without the ability to easily share inputs/outputs between models.
The Interagency Fuels Treatment Decision Support System (IFTDSS) was conceived as a way for users to learn one interface, access a variety of data and models all in one place, and pass data (inputs …
Bullish On Forestry Careers, Steven H. Bullard, Thomas J. Straka
Bullish On Forestry Careers, Steven H. Bullard, Thomas J. Straka
Faculty Publications
During the next decade, baby boomer-aged foresters, those born from 1946 to 1964, will be retiring in large numbers. This retirement trend is true for all sectors of forestry employment, from state and federal agencies to private firms and industries.
Forestry employers in both public and private sectors are clamoring for more graduates, as well as for more diverse graduates, from forestry degree programs. With looming retirements and industry growth, employers can project the number of positions opening, and they are aware that U.S. forestry schools are not producing sufficient graduates to fill the positions.
Effects Of Biomass Harvest On Eastern Red-Backed Salamanders, Patrick J. Ruhl
Effects Of Biomass Harvest On Eastern Red-Backed Salamanders, Patrick J. Ruhl
Open Access Theses
In a typical forest harvest, the volume of coarse woody debris (CWD) increases from nonmerchantable material (i.e., tree-tops, limbs, and small-diameter trees) left on the forest floor. Biomass harvesting removes much of this material for bioenergy production. When removed, ecosystem services associated with CWD, such as seedbed substrate, nutrient cycling, and essential wildlife habitat, is reduced. Woodland salamanders have strict microhabitat and soil moisture requirements that make them especially sensitive to timber harvest practices, particularly those that remove CWD, a primary habitat for the group.
I monitored the abundance of Eastern red-backed salamanders ( Plethodon cinereus ) in response to …
The Optimal Foraging Of Equus Burchelli At Enashiva Nature Refuge, Edward Haubenreiser
The Optimal Foraging Of Equus Burchelli At Enashiva Nature Refuge, Edward Haubenreiser
Independent Study Project (ISP) Collection
Within the country of Tanzania lies a vast ecosystem known as the Serengeti. This unique landscape, primarily of grasslands and woodlands, shapes the seasonal feeding habits of the abundant wildlife that call the area home. While these feeding habits on a large spatial scale are well understood, such behavior within a specie’s specific environment remains of interest. With the theory of optimal foraging in mind, which considers how animals should look for and select food (Green, 1990), I studied the foraging habits of resident Burchell’s zebra (Equus burchelli) by observing if they move and forage among distinct resource …
Spatial Variation In Carbon And Nitrogen In Cultivated Soils In Henan Province, China: Potential Effect On Crop Yield, Xuelin Zhang, Qun Wang, Frank S. Gilliam, Yilun Wang, Feina Cha, Chaohai Li
Spatial Variation In Carbon And Nitrogen In Cultivated Soils In Henan Province, China: Potential Effect On Crop Yield, Xuelin Zhang, Qun Wang, Frank S. Gilliam, Yilun Wang, Feina Cha, Chaohai Li
Biological Sciences Faculty Research
Improved management of soil carbon (C) and nitrogen (N) storage in agro-ecosystems represents an important strategy for ensuring food security and sustainable agricultural development in China. Accurate estimates of the distribution of soil C and N stores and their relationship to crop yield are crucial to developing appropriate cropland management policies. The current study examined the spatial variation of soil organic C (SOC), total soil N (TSN), and associated variables in the surface layer (0–40 cm) of soils from intensive agricultural systems in 19 counties within Henan Province, China, and compared these patterns with crop yield. Mean soil C and …
Vegetation And Soil Characteristics Of Pine Plantations And Naturally Regenerated Hardwood Forests On The Hoosier National Forest, Patrick James Duffy
Vegetation And Soil Characteristics Of Pine Plantations And Naturally Regenerated Hardwood Forests On The Hoosier National Forest, Patrick James Duffy
Open Access Theses
During the 1930s there was widespread erosion on farmland and subsequent land abandonment. As a result, Pinus strobus L. (white pine), P. resinosa Aiton (red pine), and P. echinata Mill. (shortleaf pine) were planted in the Midwest to prevent erosion and rehabilitate sites. These species were selected due to their wide availability at the time. Currently, it is the goal of the U.S. Forest Service to provide a more natural and sustainable landscape, in part by removing these non-native Pinus stands and by replacing them with native hardwood species. The ultimate success of hardwood restoration depends, in part, on the …
Suitability Of Blue Ash (Fraxinus Quadrangulata) And Green Ash (F. Pennsylvanica) To Emerald Ash Borer (Agrilus Planipennis) And Its Larval Parasitoid Tetrastichus Planipennisi., Donnie "L. " Peterson
Suitability Of Blue Ash (Fraxinus Quadrangulata) And Green Ash (F. Pennsylvanica) To Emerald Ash Borer (Agrilus Planipennis) And Its Larval Parasitoid Tetrastichus Planipennisi., Donnie "L. " Peterson
Open Access Theses
Emerald ash borer (EAB) (Agrilus planipennis ) is a primary pest that has killed tens of millions of North American ash (Fraxinus spp.) trees. The larval parasitoid Tetrastichus planipennisi was introduced from China as part of a classical biological control program for long-term EAB management. The high mortality rates of ash trees greatly reduce the number of EAB hosts and may make it difficult for parasitoids to persist. However, blue ash ( F. quadrangulata ) is relatively resistant and appears to be able to survive EAB infestation. If natural enemies can attack EAB in infested blue ash they …
A Test Of The Mean Distance Method For Forest Regeneration Assessment, Daniel Unger, Jeremy P. Stovall, Brian P. Oswald, David Kulhavy, I-Kuai Hung
A Test Of The Mean Distance Method For Forest Regeneration Assessment, Daniel Unger, Jeremy P. Stovall, Brian P. Oswald, David Kulhavy, I-Kuai Hung
Faculty Publications
A new distance-based estimator for forest regeneration assessment, the mean distance method, was developed by combining ideas and techniques from the wandering quarter method, T-square sampling and the random pairs method. The performance of the mean distance method was compared to conventional 4.05 square meter plot sampling through simulation analysis on 405 square meter blocks of a field surveyed clumped distribution and a computer generated random distribution at different levels of density of 100, 50 and 25%. The mean distance method accurately estimated density on the random populations but the mean distance method estimates were more variable than those of …
Smokejumper Obituary: Miller, Leland (Missoula 1944), National Smokejumper Association
Smokejumper Obituary: Miller, Leland (Missoula 1944), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Pape, Donald L. (Idaho City 1948), National Smokejumper Association
Smokejumper Obituary: Pape, Donald L. (Idaho City 1948), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Searles, Robert C. (Missoula 1945), National Smokejumper Association
Smokejumper Obituary: Searles, Robert C. (Missoula 1945), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Wallace, Donald Earl (Cave Junction 1949), National Smokejumper Association
Smokejumper Obituary: Wallace, Donald Earl (Cave Junction 1949), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Crosby, Harold Gene (Mccall 1953), National Smokejumper Association
Smokejumper Obituary: Crosby, Harold Gene (Mccall 1953), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Agenda: Celebrating The Great Law: The Wilderness Act At 50, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, The Wilderness Society
Agenda: Celebrating The Great Law: The Wilderness Act At 50, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, The Wilderness Society
Celebrating the Great Law: The Wilderness Act at 50 (September 4-5)
"A conference sponsored by the Getches-Wilkinson Center for Natural Resources, Energy, and the Environment and The Wilderness Society."
On September 3, 2014, the National Wilderness Preservation System—established and protected by the Wilderness Act of 1964—celebrates its 50th anniversary. We are gathering on September 4th and 5th to celebrate Wilderness—“ornery old wilderness, scratchy, sweaty, and distant, but sacred every step of the way”—and to commemorate the great law so central to its protection.
This is not an ordinary conference, full of dry presentations or heated policy debates. Instead, this will be a full-throated love song to wild country. We have brought …
Timber Talk, Vol. 52, No. 3, September 1, 2014
Timber Talk, Vol. 52, No. 3, September 1, 2014
Timber Talk: Nebraska Forest Industry Newsletter
In This Issue
Lumber Market News ...........................1
Hardwood Lumber Price Trends—Green..................................2
Hardwood Lumber Price Trends—Kiln Dried...........................2
Band Saws for Small Sawmills..............3
Sawmills Can Make More than Lumber.............................................5
Nebraska Forest Industry Spotlight......6
The Trading Post....................................8
Timber Sales...........................................8
Modeling Regional-Scale Wildland Fire Emissions With The Wildland Fire Emissions Information System, Nancy H. F. French, Donald Mckenzie, Tyler Erickson, Benjamin Koziol, Michael Billmire, K. A. Endsley, Naomi K. Yager Scheinerman, Liza K. Jenkins, Mary Ellen Miller, Roger Ottmar, Susan Prichard
Modeling Regional-Scale Wildland Fire Emissions With The Wildland Fire Emissions Information System, Nancy H. F. French, Donald Mckenzie, Tyler Erickson, Benjamin Koziol, Michael Billmire, K. A. Endsley, Naomi K. Yager Scheinerman, Liza K. Jenkins, Mary Ellen Miller, Roger Ottmar, Susan Prichard
Michigan Tech Research Institute Publications
As carbon modeling tools become more comprehensive, spatial data are needed to improve quantitative maps of carbon emissions from fire. The Wildland Fire Emissions Information System (WFEIS) provides mapped estimates of carbon emissions from historical forest fires in the United States through a web browser. WFEIS improves access to data and provides a consistent approach to estimating emissions at landscape, regional, and continental scales. The system taps into data and tools developed by the U.S. Forest Service to describe fuels, fuel loadings, and fuel consumption and merges information from the U.S. Geological Survey (USGS) and National Aeronautics and Space Administration …
Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2012, Leah English, Jennie Popp, Wayne Miller
Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2012, Leah English, Jennie Popp, Wayne Miller
AAES Research Reports and Research Bulletins
This report is the ninth in a series of reports examining agriculture’s economic contribution on the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economic Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and IMPLAN Group, LLC , the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2012.
Urbanization And Stream Salamanders: A Review, Conservation Options, And Research Needs, Kyle Barrett, Steven J. Price
Urbanization And Stream Salamanders: A Review, Conservation Options, And Research Needs, Kyle Barrett, Steven J. Price
Forestry and Natural Resources Faculty Publications
Urban areas are increasing in size and human population density. The implications of widespread urbanization are apparent for a wide variety of stream organisms, but the responses of stream-dwelling salamanders to urbanization have been understudied historically. Studies on this assemblage have increased sufficiently over the last decade to warrant a review and synthesis of current knowledge. Our survey of the literature indicates a research bias toward species within the Piedmont ecoregion of the USA and a strong emphasis on changes in species richness, relative abundance, and occupancy along an urbanization gradient. Very few investigators have examined vital rates for specific …
Information And Entropy Theory For The Sustainability Of Coupled Human And Natural Systems, Audrey L. Mayer, Richard P. Donovan, Christopher W. Pawlowski
Information And Entropy Theory For The Sustainability Of Coupled Human And Natural Systems, Audrey L. Mayer, Richard P. Donovan, Christopher W. Pawlowski
College of Forest Resources and Environmental Science Publications
For coupled human and natural systems (CHANS), sustainability can be defined operationally as a feasible, desirable set of flows (material, currency, information, energy, individuals, etc.) that can be maintained despite internal changes and changes in the environment. Sustainable development can be defined as the process by which CHANS can be moved toward sustainability. Specific indicators that give insight into the structure and behavior of feedbacks in CHANS are of particular interest because they would aid in the sustainable management of these systems through an understanding of the structures that govern system behavior. However, the use of specific feedbacks as monitoring …
Smokejumper Obituary: Krueger, Otto Frederick (Missoula 1955), National Smokejumper Association
Smokejumper Obituary: Krueger, Otto Frederick (Missoula 1955), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Changing Forest Structure Across The Landscape Of The Sierra Nevada, Ca, Usa, Since The 1930s, Christopher R. Dolanc, Hugh D. Safford, James H. Thorne, Solomon Z. Dobrowski
Changing Forest Structure Across The Landscape Of The Sierra Nevada, Ca, Usa, Since The 1930s, Christopher R. Dolanc, Hugh D. Safford, James H. Thorne, Solomon Z. Dobrowski
Forest Management Faculty Publications
Understanding the dynamics of forest structure aids inference regarding future forests and their distributions around the world. Over the last few decades, several papers have addressed changing forest structure in the Sierra Nevada, CA, USA, but these studies were limited in scope. We carried out a broad comparison of forest density and composition in the 1930s versus the 2000s for the west slope of the central and northern Sierra Nevada, using the two most extensive data sets available. Forests in this region have endured a long, complex history of human disturbance, and are now experiencing climatic shifts. We subdivided the …
Smokejumper Obituary: Webb, Donald R. (Mccall 1956), National Smokejumper Association
Smokejumper Obituary: Webb, Donald R. (Mccall 1956), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Diversity Of Bacteria Carried By Pinewood Nematode In Usa And Phylogenetic Comparison With Isolates From Other Countries, Diogo Neves Proença, Luís Fonseca, Thomas Powers, Isabel M.O. Abrantes, Paula V. Morais
Diversity Of Bacteria Carried By Pinewood Nematode In Usa And Phylogenetic Comparison With Isolates From Other Countries, Diogo Neves Proença, Luís Fonseca, Thomas Powers, Isabel M.O. Abrantes, Paula V. Morais
Department of Plant Pathology: Faculty Publications
Pine wilt disease (PWD) is native to North America and has spread to Asia and Europe. Lately, mutualistic relationship has been suggested between the pinewood nematode (PWN), Bursaphelenchus xylophilus the causal nematode agent of PWD, and bacteria. In countries where PWN occurs, nematodes from diseased trees were reported to carry bacteria from several genera. However no data exists for the United States. The objective of this study was to evaluate the diversity of the bacterial community carried by B. xylophilus, isolated from different Pinus spp. with PWD in Nebraska, United States. The bacteria carried by PWN belonged to Gammaproteobacteria …
Predicted Effects Of Gypsy Moth Defoliation And Climate Change On Forest Carbon Dynamics In The New Jersey Pine Barrens, Alec M. Kretchun, Robert M. Scheller, Melissa S. Lucash, Kenneth L. Clark, John Hom, Steve Van Tuyl
Predicted Effects Of Gypsy Moth Defoliation And Climate Change On Forest Carbon Dynamics In The New Jersey Pine Barrens, Alec M. Kretchun, Robert M. Scheller, Melissa S. Lucash, Kenneth L. Clark, John Hom, Steve Van Tuyl
Environmental Science and Management Faculty Publications and Presentations
Disturbance regimes within temperate forests can significantly impact carbon cycling. Additionally, projected climate change in combination with multiple, interacting disturbance effects may disrupt the capacity of forests to act as carbon sinks at large spatial and temporal scales. We used a spatially explicit forest succession and disturbance model, LANDIS-II, to model the effects of climate change, gypsy moth (Lymantria dispar L.) defoliation, and wildfire on the C dynamics of the forests of the New Jersey Pine Barrens over the next century. Climate scenarios were simulated using current climate conditions (baseline), as well as a high emissions scenario (HadCM3 A2 …
Smokejumper Obituary: Greene, Melvin L. (Missoula 1942), National Smokejumper Association
Smokejumper Obituary: Greene, Melvin L. (Missoula 1942), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
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.