Predicted Effects Of Gypsy Moth Defoliation And Climate Change On Forest Carbon Dynamics In The New Jersey Pine Barrens,
2014
Portland State University
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 …
Surveys Of Southern Flying Squirrel Activity Following Timber Harvest In Southern Indiana,
2014
Purdue University
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,
2014
Purdue University
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 …
Development Of Transgenic North American White Ash (Fraxinus Americana) Expressing A Bacillus Thuringiensis Protein For Management Of The Emerald Ash Borer,
2014
Purdue University
Development Of Transgenic North American White Ash (Fraxinus Americana) Expressing A Bacillus Thuringiensis Protein For Management Of The Emerald Ash Borer, Eric A. Dean, Paula M. Pijut Phd., Micah E. Stevens
The Summer Undergraduate Research Fellowship (SURF) Symposium
White ash (WA), Fraxinus americana, is an integral part of the hardwood forest ecosystem. Economically, WA provides wood for important products such as baseball bats, tool handles, and hardwood flooring. Ecologically WA provides cover and mast to support wildlife. The emerald ash borer (EAB) is a significant threat to all ash species because of a lack of native resistance in North American ash trees, its rapid spread, and the ineffectiveness and expense of control measures. EAB is a non-native beetle that consumes tree vascular tissue while in the larval stage. The development of an Agrobacterium-mediated transformation protocol may …
Smokejumper Obituary: Pitts, Donald W. (Missoula 1955),
2014
Eastern Washington University
Smokejumper Obituary: Pitts, Donald W. (Missoula 1955), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Comparison Of The Performance Of A Digital Image Analysis Method Versus A Leaf Area Meter In Measuring Leaf Surface Area,
2014
Stephen F Austin State University
Comparison Of The Performance Of A Digital Image Analysis Method Versus A Leaf Area Meter In Measuring Leaf Surface Area, Elaine Harris
Undergraduate Research Conference
No abstract provided.
Developing Consumer And Market Research For Non-Timber,
2014
United States Department of Agriculture, National Agroforestry Center, Lincoln, Nebraska
Developing Consumer And Market Research For Non-Timber, Kate Macfarland
Agroforestry Notes (USDA-NAC)
Non-timber forest products (NTFPs) present an opportunity for many forest landowners to get additional income from their woodlands. This option may be useful for landowners who are not interested in harvesting trees from their land or for landowners who are interested in growing additional products that provide shorter term income streams in addition to their timber harvest. Many markets for NTFPs are growing.
Growth Responses Of Genetically Improved Open Pollenated, Full-Sibling, And Clonal Loblolly Pine To The FlexstandTm Silvicultural System,
2014
Clemson University
Growth Responses Of Genetically Improved Open Pollenated, Full-Sibling, And Clonal Loblolly Pine To The FlexstandTm Silvicultural System, Patrick Ma
All Theses
ABSTRACT Loblolly pine (Pinus taeda) is often listed as the most commercially important timber species in the southeastern United States and is subject to genetic improvement via breeding programs to increase sawtimber yield, stem quality, and disease resistance. ArborGen has trademarked the FlexStandTM Silvicultural System (a method of interplanting rows of genetically improved trees with less expensive biomass trees) as a more economical solution to growing Loblolly pine. Two studies were conducted to in order to assess the FlexStandTM Silvicultural System. The first study assessed seedling mortality and growth of four different genetic combinations were assessed in the …
Use Of Unmanned Aerial Vehicles (Uav) For Urban Tree Inventories,
2014
Clemson University
Use Of Unmanned Aerial Vehicles (Uav) For Urban Tree Inventories, Brian Ritter
All Theses
In contrast to standard aerial imagery, unmanned aerial systems (UAS) utilize recent technological advances to provide an affordable alternative for imagery acquisition. Increased value can be realized through clarity and detail providing higher resolution (2-5 cm) over traditional products. Many natural resource disciplines such as urban forestry will benefit from UAS. Tree inventories for risk assessment, biodiversity, planning, and design can be efficiently achieved with the UAS. Recent advances in photogrammetric processing have proved automated methods for three dimensional rendering of aerial imagery. Point clouds can be generated from images providing additional benefits. Association of spatial locational information within the …
Ecohydrological Function Of Lower Coastal Plain Bioretention Cells In South Carolina,
2014
Clemson University
Ecohydrological Function Of Lower Coastal Plain Bioretention Cells In South Carolina, Jessica Palazzolo
All Theses
Flooding and stormwater control is a critical issue in coastal South Carolina because of shallow water table elevation, topography and rapid urbanization in the region. A best management practice (BMP) using low impact design (LID) principles known as a bioretention cell (BRC) is gaining popularity for stormwater management. Five BRCs in four landscape positions (well-drained uplands, tidal-proximal, poorly-drained-uplands, and floodplain) were instrumented for microclimate, soil moisture, and water table elevation for hydraulic efficiency and for water quality measurements. Three BRCs did not have an overflow outlets, one BRC (floodplain) employed an underdrain system, and one BRC (tidal proximal) had an …
Spatially Nonrandom Tree Mortality And Ingrowth Maintain Equilibrium Pattern In An Old-Growth Pseudotsuga–Tsuga Forest,
2014
Utah State University
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,
2014
University of KwaZulu-Natal
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),
2014
Eastern Washington University
Smokejumper Obituary: Galbraith, Art Leeroy (North Cascades 1961), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Water Use And Water Tolerance In The Riparian Species American Sycamore (Plantanus Occidentalis L.) And How Its Physiology Compares To The Coexisting Black Willow (Salix Nigra Marshall),
2014
Kennesaw State University
Water Use And Water Tolerance In The Riparian Species American Sycamore (Plantanus Occidentalis L.) And How Its Physiology Compares To The Coexisting Black Willow (Salix Nigra Marshall), Eric Duncan
Dissertations, Theses and Capstone Projects (Full IR Collection)
This study set out to compare aspects of water use and tolerance to inundation and drought of two riparian tree species, Platanus occidentalis L. and Salix nigra Marshall. The main goal of the study was to better understand the two species and assess the suitability of P. occidentalis for use in riparian restoration. To accomplish this, potted individuals were subjected to treatments of drought, inundation, or control, under greenhouse conditions, and separately, in order to estimate water use in trees, season-long diurnal measurements of sap flux (using Granier type thermal dissipation probes) were determined in situ for trees growing in …
Wood Colorization Through Pressure Treating: The Potential Of Extracted Colorants From Spalting Fungi As A Replacement For Woodworkers’ Aniline Dyes,
2014
Oregon State University
Wood Colorization Through Pressure Treating: The Potential Of Extracted Colorants From Spalting Fungi As A Replacement For Woodworkers’ Aniline Dyes, Sara C. Robinson, Eric Hinsch, Genevieve Weber, Kristina Leipus, Daniel Cerney
Michigan Tech Publications, Part 1
The extracellular colorants produced by Chlorociboria aeruginosa, Scytalidium cuboideum, and Scytalidium ganodermophthorum, three commonly utilized spalting fungi, were tested against a standard woodworker’s aniline dye to determine if the fungal colorants could be utilized in an effort to find a naturally occurring replacement for the synthetic dye. Fungal colorants were delivered in two methods within a pressure treater—the first through solubilization of extracted colorants in dichloromethane, and the second via liquid culture consisting of water, malt, and the actively growing fungus. Visual external evaluation of the wood test blocks showed complete surface coloration of all wood species with all colorants, …
Smokejumper Obituary: Smith, Timothy J. (Missoula 1976),
2014
Eastern Washington University
Smokejumper Obituary: Smith, Timothy J. (Missoula 1976), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Most Soil Trophic Guilds Increase Plant Growth: A Meta-Analytical Review,
2014
Utah State University
Most Soil Trophic Guilds Increase Plant Growth: A Meta-Analytical Review, Andrew Kulmatiski, Andrew Anderson-Smith, Karen H. Beard, Stephen Doucette-Riise, Michael Mazzacavallo, Nicole E. Nolan, Ricardo A. Ramirez, John R. Stevens
Wildland Resources Faculty Publications
Trophic cascades are important drivers of plant and animal abundances in aquatic and aboveground systems, but in soils trophic cascades have been thought to be of limited importance due to omnivory and other factors. Here we use a meta-analysis of 215 studies with 1526 experiments that measured plant growth responses to additions or removals of soil organisms to test how different soil trophic levels affect plant growth. Consistent with the trophic cascade hypothesis, we found that herbivores and plant pathogens (henceforth pests) decreased plant growth and that predators of pests increased plant growth. The magnitude of this trophic cascade was …
Smokejumper Obituary: Newbrough, John Robert (Mccall 1953),
2014
Eastern Washington University
Smokejumper Obituary: Newbrough, John Robert (Mccall 1953), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Zehr, Richard S. "Dick" (Missoula 1943),
2014
Eastern Washington University
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,
2014
United States Forest Service, Northern Research Station, Irvine, Pennsylvania
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 …
