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Integrating Hands-On Undergraduate Research In An Applied Spatial Science Senior Level Capstone Course, David Kulhavy, Daniel Unger, I-Kuai Hung, David Douglass 2015 Stephen F. Austin State University

Integrating Hands-On Undergraduate Research In An Applied Spatial Science Senior Level Capstone Course, David Kulhavy, Daniel Unger, I-Kuai Hung, David Douglass

Faculty Publications

A senior within a spatial science Ecological Planning capstone course designed an undergraduate research project to increase his spatial science expertise and to assess the hands-on instruction methodology employed within the Bachelor of Science in Spatial Science program at Stephen F Austin State University. The height of 30 building features estimated remotely with LiDAR data, within the Pictometry remotely sensed web-based interface, and in situ with a laser rangefinder were compared to actual building feature height measurements. A comparison of estimated height with actual height indicated that all three estimation techniques tested were unbiased estimators of height. An ANOVA, conducted ...


Quantifying Land Cover Change Due To Petroleum Exploration And Production In The Haynesville Shale Region Using Remote Sensing, Daniel Unger, I-Kuai Hung, Kenneth W. Farrish, Darinda Dans 2015 Stephen F. Austin State University

Quantifying Land Cover Change Due To Petroleum Exploration And Production In The Haynesville Shale Region Using Remote Sensing, Daniel Unger, I-Kuai Hung, Kenneth W. Farrish, Darinda Dans

Faculty Publications

The Haynesville Shale lies under areas of Louisiana and Texas and is one of the largest gas plays in the U.S. Encompassing approximately 2.9 million ha, this area has been subject to intensive exploration for oil and gas, while over 90% of it has traditionally been used for forestry and agriculture. In order to detect the landscape change in the past few decades, Landsat Thematic Mapper (TM) imagery for six years (1984, 1989, 1994, 2000, 2006, and 2011) was acquired. Unsupervised classifications were performed to classify each image into four cover types: agriculture, forest, well pad, and other ...


Managing Threats To The Urban Forest: From Dutch Elm Disease To Emerald Ash Borer - Learning From Experience, Christopher J. Borman 2014 University of Nebraska - Lincoln

Managing Threats To The Urban Forest: From Dutch Elm Disease To Emerald Ash Borer - Learning From Experience, Christopher J. Borman

Doctoral Documents from Doctor of Plant Health Program

The urban forest provides important essential services to all municipalities; however, its value is often overlooked. The urban forest contributes to energy savings, environmental benefits, psychological well-being, and social benefits. Managing the urban forest in a sustainable manner is important if we wish to benefit from these services well into the future. Reliable management techniques have been created through previous experiences with pests, and these should be utilized and improved for use on urban forests.

American elm (Ulmus americana L.) was once a major component of the urban forests of North America. In 1927, Dutch elm disease (DED) was introduced ...


Trading Fat For Forests: On Palm Oil, Tropical Forest Conservation, And Rational Consumption, Cindy Isenhour 2014 The University of Maine

Trading Fat For Forests: On Palm Oil, Tropical Forest Conservation, And Rational Consumption, Cindy Isenhour

Anthropology Faculty Scholarship

The longstanding butter vs margarine debate has recently become more complex as the links between margarine, industrial palm oil plantations, and tropical deforestation are made increasingly clear. Yet despite calls for consumers to get informed and take responsibility for tropical deforestation by boycotting margarine or purchasing buttery spreads made with sustainably-sourced palm oil, research in multiple contexts demonstrates that even the most aware, engaged, and rational consumers run into significant barriers when trying to reduce their environmental impacts. This paper supplements important critiques of neoliberal conservation at the site of extraction or intended conservation (Carrier and West 2009; Igoe and ...


Waas, Glonass, And Gps Accuracy, Yanli Zhang, Daniel Unger, I-Kuai Hung, David Kulhavy 2014 Stephen F. Austin State University

Waas, Glonass, And Gps Accuracy, Yanli Zhang, Daniel Unger, I-Kuai Hung, David Kulhavy

Faculty Publications

No abstract provided.


2014 Future Earth Young Scientists Conference On Integrated Science And Knowledge Co-Production For Ecosystems And Human Well-Being, Ivy Shiue, Leah Samberg, Benard Kulohoma, Diana Dogaru, Carina Wyborn, Perrine Hamel, Peper Sogaard Jorgensen, Paul Lussier, Bharath Sundaram, Michelle Lim, Antonio Tironi 2014 University of Montana

2014 Future Earth Young Scientists Conference On Integrated Science And Knowledge Co-Production For Ecosystems And Human Well-Being, Ivy Shiue, Leah Samberg, Benard Kulohoma, Diana Dogaru, Carina Wyborn, Perrine Hamel, Peper Sogaard Jorgensen, Paul Lussier, Bharath Sundaram, Michelle Lim, Antonio Tironi

Forest Management Faculty Publications

Effective integration in science and knowledge co-production is a challenge that crosses research boundaries, climate regions, languages and cultures. Early career scientists are crucial in the identification of, and engagement with, obstacles and opportunities in the development of innovative solutions to complex and interconnected problems. On 25-31 May 2014, International Council for Science and International Social Science Council, in collaboration with the International Network of Next-Generation Ecologists and Institute for New Economic Thinking: Young Scholars Initiative, assembled a group of early career researchers with diverse backgrounds and research perspectives to reflect on and debate relevant issues around ecosystems and human ...


Evaluating Gps Effectiveness For Natural Resource Professionals: Integrating Undergraduate Students In The Decision-Making Process, Daniel Unger, I-Kuai Hung, Yanli Zhang, David Kulhavy 2014 Stephen F. Austin State University

Evaluating Gps Effectiveness For Natural Resource Professionals: Integrating Undergraduate Students In The Decision-Making Process, Daniel Unger, I-Kuai Hung, Yanli Zhang, David Kulhavy

Faculty Publications

Undergraduate students pursuing a Bachelor of Science in Forestry (BSF) degree at Stephen F. Austin State University (SFA) attend an intensive 6-week residential hands-on instruction in applied field methods. For students pursuing the BSF degree knowing the exact location of a forestland is crucial to the understanding and proper management of any related natural resource. The intensive 6-week instruction includes teaching how to use the Global Positioning System (GPS) to accurately record the spatial location of an earth’s surface feature. After receiving hands-on instructions during the summer of 2014, students were taken to the field to collect real-world locations ...


Bullish On Forestry Careers, Steven H. Bullard, Thomas J. Straka 2014 Stephen F. Austin State University

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.


A Test Of The Mean Distance Method For Forest Regeneration Assessment, Daniel Unger, Jeremy P. Stovall, Brian P. Oswald, David Kulhavy, I-Kuai Hung 2014 Stephen F. Austin State University

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 ...


Responses Of Small Mammals To Wildfire In A Mixed Conifer Forest In The San Bernardino Mountains, California, Mark I. Borchert 2014 Occidental College

Responses Of Small Mammals To Wildfire In A Mixed Conifer Forest In The San Bernardino Mountains, California, Mark I. Borchert

Bulletin of the Southern California Academy of Sciences

Abstract.—Wildfires are becoming more prevalent in montane conifer forests of the San Bernardino Mountains of southern California. The effects of fire on stand structure and composition of these forests has been extensively studied but there are far fewer studies on how wildfires affect the fauna. For five years after a wildfire in 2007, we live-trapped small mammals in three burn types: unburned, moderate-severity and high-severity. A primary objective of this study was to document the response of the small mammal community to high-severity fire. Pinyon mice were consistently more abundant in unburned forests and declined by 69-76% between unburned ...


Annotated Bibliography: Attitudes Toward Wildlife And The Environment (1998-2013), Erich Yahner 2014 Humane Society Institute for Science and Policy

Annotated Bibliography: Attitudes Toward Wildlife And The Environment (1998-2013), Erich Yahner

Humane Education

No abstract provided.


Permaculture Design: On The Practice Of Radical Imagination, Katja Rothe 2014 University of Massachusetts - Amherst

Permaculture Design: On The Practice Of Radical Imagination, Katja Rothe

communication +1

Permaculture design is a concept that aims at transforming not only agriculture, but also city planning, architecture, development, etc. In short it aims to change human habitats. It is part of a new ecological paradigm that is currently spreading in popularity from the urban gardening movement to various other alternative movements such as the slow movement, sustainable architecture, etc. Permaculture design defines itself as building on systems theory (as formulated in particular by Howard Thomas Odum and Christopher Alexander). However I would like to propose that the afterlife of systems theory as expressed in the concept of permaculture, first developed ...


Changing Forest Structure Across The Landscape Of The Sierra Nevada, Ca, Usa, Since The 1930s, Christopher R. Dolanc, Hugh D. Safford, James H. Thorne, Soloman Z. Dobrowski 2014 University of Montana

Changing Forest Structure Across The Landscape Of The Sierra Nevada, Ca, Usa, Since The 1930s, Christopher R. Dolanc, Hugh D. Safford, James H. Thorne, Soloman 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 ...


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 2014 University of Nebraska - Lincoln

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

Papers in Plant Pathology

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 (79 ...


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 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 emissions ...


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 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 impart ...


Seedling Uptake And Fate Of Soil-Applied Capsaicin, A Potential Browse Deterrent, Carmen K. Dobbs, Joshua L Sloan, Douglass F. Jacobs 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 ...


Surveys Of Southern Flying Squirrel Activity Following Timber Harvest In Southern Indiana, Joseph W. Eisinger, Elizabeth A. Flaherty, Stephanie E. Trapp 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 ...


Comparison Of The Performance Of A Digital Image Analysis Method Versus A Leaf Area Meter In Measuring Leaf Surface Area, Elaine Harris 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.


Shortleaf Pine Sprout Production Capability In Response To Disturbances, David Charles Clabo 2014 University of Tennessee, Knoxville

Shortleaf Pine Sprout Production Capability In Response To Disturbances, David Charles Clabo

Masters Theses

Shortleaf pine (Pinus echinata Mill.) seedlings are capable of sprouting and continuing growth after the stem is killed. The sprouting ability of shortleaf pine could be used to favor the species silviculturally after disturbance. Information is limited on shortleaf pine seedling sprouting after burning and clipping at different periods of the growing season and the effects of these treatments during their first three years after outplanting. Survival, seedling growth, and sprout production of shortleaf pine were evaluated after burning and clipping. The research was conducted on one, two, and three-year-old seedlings on an above average productivity site on the Cumberland ...


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