Bark Beetle-Induced Changes To Crown Fuel Flammability And Crown Fire Potential, 2014 Utah State University
Bark Beetle-Induced Changes To Crown Fuel Flammability And Crown Fire Potential, Wesley G. Page
All Graduate Theses and Dissertations
Recent outbreaks of mountain pine beetle (Dendroctonus ponderosae Hopkins) in lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests and spruce beetle (Dendroctonus rufipennis Kirby) in Engelmann spruce (Picea engelmannii Parry ex Engelm.) forests have affected vast areas across western North America. The highlevels of tree mortality associated with these outbreaks have raised concerns amongst fire managers and wildland firefighters about the effects of the tree mortality on fire behavior, particularly crown fire behavior, as crown fires hinder the ability of firefighters to conduct safe and effective fire suppression operations. Current information regarding crown fire dynamics in recently ...
Forest Management And Wildfire Risk In Inland Northwest, 2014 University of New Hampshire
Forest Management And Wildfire Risk In Inland Northwest, Joel Hartter, Forrest R. Stevens, Lawrence C. Hamilton, Paul T. Oester, Russell G. Congalton, Mark J. Ducey, Morgan A. Crowley
The Carsey Institute at the Scholars' Repository
This brief reports the results of a mail survey of forest landowners in northeastern Oregon conducted in the fall of 2012 by the Communities and Forests in Oregon (CAFOR) Project at the University of Colorado and the University of New Hampshire in cooperation with Oregon State University College of Forestry Extension. The mail survey--a follow-up to a telephone survey conducted for the counties of Baker, Union, and Wallowa in the fall of 2011 -was administered to understand who constituted forest landowners in these three coun¬ties and their perceptions about forest management on both public and private land, as well ...
Soil Penetromter, 2014 SelectedWorks
Soil Penetromter, David A. Bainbridge
David A Bainbridge
A simple easy to build impact soil penetrometer can provide very useful information on soil strength. This can be very important for restoration planning and management of soils in agriculture and forestry.
Kentucky Forestry Economic Impact Report 2013-2014, 2014 University of Kentucky
Kentucky Forestry Economic Impact Report 2013-2014, Jeff Stringer, Billy Thomas, Bobby Ammerman, Alison Davis
Kentucky Forestry Economic Impact Report
Forests are a valuable part of Kentucky’s landscape providing significant resources and opportunities benefiting the Commonwealth. One important and verifiable benefit is the economic contributions of Kentucky’s forest and wood industries. Analysis of these industries indicated a total economic impact of $12.8 billion and 59,000 jobs in 2013. Kentucky is one of the leading producers of hardwood forest products in the south and exports wood products across the nation and the world. This economic impact was generated from forests located in all 120 counties of the Commonwealth providing resources harvested by over ...
Water For Electricity In The Upper Savannah Basin: Impacts On Freshwater Mussels, 2014 Clemson University
Water For Electricity In The Upper Savannah Basin: Impacts On Freshwater Mussels, Alan Johnson, Snehal Mhatre
Graduate Research and Discovery Symposium (GRADS)
The water resources of the Upper Savannah River Basin are subjected to extensive water withdrawals for production of electricity for the region. The use of Savannah River Basin water resources for electricity production and the associated impact on reservoir levels, streamflows, and thermal regimes is in conflict with the requirements of in-stream biota particularly freshwater mussels. The Savannah River Basin contains atleast 26 unionid species, most of which are listed as endangered, threatened, or of special concern at the state level. Populations of these species have experienced significant declines and extirpations in the recent decades. Of these unionid species, brook ...
Assessing Nutrient Limitation In Complex Forested Ecosystems : Alternatives To Large-Scale Fertilization Experiments, Benjamin W. Sullivan, Silvia Alvarez-Clare, Sarah C. Castle, Stephen Porder, Sasha C. Reed, Laura Schreeg, Cory C. Cleveland, Alan R. Townsend
Ecosystem and Conservation Sciences Faculty Publications
Quantifying nutrient limitation of primary productivity is a fundamental task of terrestrial ecosystem ecology, but in a high carbon dioxide environment it is even more critical that we understand potential nutrient constraints on plant growth. Ecologists often manipulate nutrients with fertilizer to assess nutrient limitation, yet for a variety of reasons, nutrient fertilization experiments are either impractical or incapable of resolving ecosystem responses to some global changes. The challenges of conducting large, in situ fertilization experiments are magnified in forests, especially the high-diversity forests common throughout the lowland tropics. A number of methods, including fertilization experiments, could be seen as ...
Climate Change Effects On Northern Great Lake (Usa) Forests: A Case For Preserving Diversity, 2014 Portland State University
Climate Change Effects On Northern Great Lake (Usa) Forests: A Case For Preserving Diversity, Matthew Joshua Duveneck, Robert M. Scheller, Mark A. White, Stephen D. Handler, Catherine Ravenscroft
Environmental Science and Management Faculty Publications and Presentations
Under business as usual (BAU) management, stresses posed by climate change may exceed the ability of Great Lake forests to adapt. Temperature and precipitation projections in the Great Lakes region are expected to change forest tree species composition and productivity. It is unknown how a change in productivity and/or tree species diversity due to climate change will affect the relationship between diversity and productivity. We assessed how forests in two landscapes (i.e., northern lower Michigan and northeastern Minnesota, USA) would respond to climate change and explored the diversityproductivity relationship under climate change. In addition, we explored how tree ...
Averting Lemur Extinctions Amid Madagascar's Political Crisis, 2014 Western University
Averting Lemur Extinctions Amid Madagascar's Political Crisis, Christoph Schwitzer, Russell Mittermeier, Steig Johnson, Giuseppe Donati, Mitchell Irwin, Heather Peacock, Jonah Ratsimbazafy, Josia Razafindramanana, Edward E. Louis, Lounes Chikhi, Ian C. Colquhoun, Jennifer Tinsman, Ranier Dolch, Marni Lafleur, Stephen Nash, Erik Patel, Blanchard Randrianambinina, Tove Rasolofoharivelo, Patricia C. Wright
The most threatened mammal group
on Earth, Madagascar’s five endemic
lemur families (lemurs are found
nowhere else), represent more than 20%
of the world’s primate species and 30% of
family-level diversity. This combination of
diversity and uniqueness is unmatched by
any other country—remarkable considering
that Madagascar is only 1.3 to 2.9% the
size of the Neotropics, Africa, or Asia, the
other three landmasses where nonhuman
primates occur. But lemurs face extinction
risks driven by human disturbance of forest
habitats. We discuss these challenges
and reasons for hope in light of site-specific,
local actions proposed in ...
Agricultural Conversion Without External Water And Nutrient Inputs Reduces Terrestrial Vegetation Productivity, 2014 University of Montana
Agricultural Conversion Without External Water And Nutrient Inputs Reduces Terrestrial Vegetation Productivity, William Kolby Smith, Cory C. Cleveland, Sasha C. Reed, Steven W. Running
Ecosystem and Conservation Sciences Faculty Publications
Driven by global population and standard of living increases, humanity co-opts a growing share of the planet's natural resources resulting in many well-known environmental trade-offs. In this study, we explored the impact of agriculture on a resource fundamental to life on Earth: terrestrial vegetation growth (net primary production; NPP). We demonstrate that agricultural conversion has reduced terrestrial NPP by ~7.0%. Increases in NPP due to agricultural conversion were observed only in areas receiving external inputs (i.e., irrigation and/or fertilization). NPP reductions were found for ~88% of agricultural lands, with the largest reductions observed in areas formerly ...
The Conservation Value Of Karst Dolines For Vascular Plants In Woodland Habitats Of Hungary: Refugia And Climate Change, 2014 University of South Florida
The Conservation Value Of Karst Dolines For Vascular Plants In Woodland Habitats Of Hungary: Refugia And Climate Change, Zoltán Bátori, János Csiky, Tünde Farkas, E. Anna Vojtkó, László Erdős, Dániel Kovács, Tamás Wirth, László Körmöczi, András Vojtkó
International Journal of Speleology
Limestone (karst) surfaces in Hungary are rich in dolines, in which many endangered vascular plant species occur. To date, the majority of studies dealing with doline vegetation have focused on the local rather than the landscape level, without using comparative data from other areas. However, in this study we aimed to compare the vegetation pattern and species composition of dolines under different climate regimes of Hungary with regard to regional species pools. The fieldwork was carried out between 2005 and 2012. Twenty dolines were selected in the Mecsek Mountains (southern Hungary) and nine dolines in the Aggtelek Karst area (northern ...
The Distance From Necessity: A Bourdieusian Analysis Of Gathering Practices In Vermont, 2014 Antioch University
The Distance From Necessity: A Bourdieusian Analysis Of Gathering Practices In Vermont, Alan Robert Pierce
Dissertations & Theses
This study examines why contemporary Americans continue to gather wild plants and fungi. Vermont, a state with a rich history of gathering, serves as a study site. I interviewed twenty-four gatherers using ethnographic methods. I applied a Bourdieusian framework to analyze the differences between gathering practices as they related to gathering knowledge, views of nature, and uses of gathered products. The interviews indicated that gathering is important to the physical and mental well-being of its practitioners and instills a connection to nature as well as to place. Interviewees cited spending time in nature and enjoyment of engaging the senses as ...
Sub-Canopy Temperature Dynamics Of A Native Tree Plantation From A Lowland Tropical Rainforest In Costa Rica, 2014 Loyola Marymount University and Loyola Law School
Sub-Canopy Temperature Dynamics Of A Native Tree Plantation From A Lowland Tropical Rainforest In Costa Rica, Victor D. Carmona
Victor D. Carmona-Galindo
With urbanization encroaching upon forestlands, characterizing microclimates in secondary forests will be important for the sustainable management of microclimates in agroforestry systems. We used micro-sensors to characterize changes in temperature at different heights in the sub-canopy of both secondary forest and 15-year-old agroforestry plots. Results show that while agroforestry plots had different temperature profiles from the secondary forest, the monoculture plot (consisting of Pentaclethra macroloba) had temperatures similar to the profile found in the secondary forest. This suggests that the replication of temperature profiles in a secondary forest may be independent of the number of tree species in a plot ...
Tree Fall Data, Post-"Super Storm" Sandy, 2012-2014, 2014 West Chester University
Tree Fall Data, Post-"Super Storm" Sandy, 2012-2014, Kendra L. Mcmillin, Gerard Hertel
Historical Tree Fall Study Documents
Since Superstorm Sandy in October 2012, Kendra McMillin and Gerry Hertel monitored tree fall in the Gordon Natural Area. After Sandy there was a wind event in August, 2013 and then the ice storm in February 2014 which caused further tree fall.
An Assessment Of White Ash (Fraxinus Americana) As Part Of An Emerald Ash Borer (Agrilus Planipennis) Management Plan For The Robert B. Gordon Natural Area., Zack T. Signora, Kendra L. Mcmillin, Gregory D. Turner
White Ash Distribution Study Documents
No abstract provided.
A Decade Comparison Of Forest Dynamics At The Gordon Natural Area, A Chester County Preserve, 2014 West Chester University
A Decade Comparison Of Forest Dynamics At The Gordon Natural Area, A Chester County Preserve, Kelly Ryan, Gregory D. Turner
Forest Health Monitoring Study Documents
No abstract provided.
The Imperative Of Conserving California's Foothill Oak Woodlands, 2013 California Polytechnic State University
The Imperative Of Conserving California's Foothill Oak Woodlands, Lauren Phillips
No abstract provided.
Influence Of Mountain Pine Beetle On Fuels, Foliar Fuel Moisture Content, And Litter And Volatile Terpenes In Whitebark Pine, Chelsea Toone
All Graduate Theses and Dissertations
Mountain pine beetle (Dendroctonus ponderosae Hopkins) has caused extensive tree mortality in whitebark pine (Pinus albicaulis Engelm) forests. Previous studies conducted in various conifer forests have shown that fine surface fuels are significantly altered during a bark beetle outbreak. Bark beetle activity in conifer stands has also been shown to alter foliar fuel moisture content and chemistry over the course of the bark beetle rotation.
The objective of this study was to evaluate changes to fine surface fuels, foliar fuel moisture and chemistry and litter chemistry in and under whitebark pine trees infested by mountain pine beetle. Fuels were measured ...
Maximizing Lignin Yield Using Experimental Design Analyzing The Impact Of Solvent Composition And Feedstock Particle Size On The Organosolv Process In The Presence Of Feedstock Contamination, 2013 University of Tennessee, Knoxville
Maximizing Lignin Yield Using Experimental Design Analyzing The Impact Of Solvent Composition And Feedstock Particle Size On The Organosolv Process In The Presence Of Feedstock Contamination, Hagen Maraun
The depletion of fossil feedstock and the unfavorable environmental effects accompanying by its exploitation are the driving forces in the process of transitioning to renewable feedstock as the primary resource. Similar to petrorefineries, a new modern biorefinery would use biomass to produce a variety of different chemical products and transportation fuels. Lignin, a potential low-cost, high volume output process stream derived from lignocellulosic biomass is currently being researched to better support the economics of the future biorefinery. In this study, experimental design was used to determine the optimal level for each process factor in an organosolv fractionation process that targets ...
Conservation In The Context Of Climate Change: Practical Guidelines For Land Protection At Local Scales, 2013 University of Rhode Island
Conservation In The Context Of Climate Change: Practical Guidelines For Land Protection At Local Scales, Kevin Ruddock, Peter August, Christopher Damon, Charles Labash, Pamela Rubinoff, Donald Robadue Jr.
Natural Resources Science Faculty Publications
Climate change will affect the composition of plant and animal communities in many habitats and geographic settings. This presents a dilemma for conservation programs – will the portfolio of protected lands we now have achieve a goal of conserving biodiversity in the future when the ecological communities occurring within them change? Climate change will significantly alter many plant communities, but the geophysical underpinnings of these landscapes, such as landform, elevation, soil, and geological properties, will largely remain the same. Studies show that extant landscapes with a diversity of geophysical characteristics support diverse plant and animal communities. Therefore, geophysically diverse landscapes will ...
National Park Service Cave Ecology Inventory And Monitoring Framework, 2013 University of South Florida
National Park Service Cave Ecology Inventory And Monitoring Framework, Gretchen M. Baker, Steven J. Taylor, Shawn Thomas, Rick Olson, Kathy Lavoie, Marie Denn, Steven Thomas, Hazel Barton, Kurt Helf, Rene Ohms, Joel Despain, Jim Kennedy, David Larson
National Cave and Karst Management Symposium 2013
A team developed the Cave Ecology Inventory and Monitoring Framework for National Park Service (NPS) units. It contains information for NPS cave managers across the United States to determine how to inventory and monitor cave ecology. Due to the wide geographical scope of NPS caves and their many different types, the document does not prescribe exact protocols. Instead, it provides guidance for what types of inventory and monitoring are possible, a framework for deciding how to prioritize inventory and monitoring activities, and references to specific protocols that are already in place at NPS cave parks.
Keywords: cave ecology, cave microbiology ...