Forest Sciences Commons^™

An Analysis Of Arthropod Interceptions By Aphis-Ppq And Customs And Border Protection In Puerto Rico, David A. Jenkins, Russell F. Mizell, Skip Van Bloem, Stefanie Whitmire, Leyinska Wiscovitch, Crystal Zaleski, Ricardo Goenaga

Publications

USDA Animal Plant Health Inspection Service Plant Protection and Quarantine (APHIS-PPQ) and Customs and Border Protection (CBP) inspect traffic entering the United States for arthropods posing a threat to national agriculture or ecosystems. We analyzed interceptions made by these agencies in Puerto Rico and the U.S. Virgin Islands between October 2006 and December 2009 for patterns with regard to the frequency of interceptions, origins of interceptions, and the taxa intercepted. 6,952 arthropods were intercepted in freight or luggage entering Puerto Rico and the U.S. Virgin Islands from foreign countries and 9,840 arthropods were intercepted from freight or luggage leaving Puerto …

Producing “Society-Ready” Foresters: A Research-Based Process To Revise The Bachelor Of Science In Forestry Curriculum At Stephen F. Austin State University, Steven H. Bullard, Pat Stephens Williams, Theresa Coble, Dean W. Coble, Ray Darville, Laurie Rogers

Faculty Publications

“Society-ready” foresters are capable of dealing effectively with the complex economic, ecological, and social issues involving forestry in the 21st century. To assess the knowledge areas, skill sets, abilities, and behaviors needed by society-ready, entry-level foresters today, we surveyed 800 forestry employers and forestry alumni from Stephen F. Austin State University (SFASU), and we also conducted focus group sessions with a total of 58 forestry employers. Important areas of knowledge on emerging issues for society-ready Bachelor of Science in Forestry (BSF) graduates included climate change, water availability and quality, and dealing with invasive plants, pathogens, and insects. However, the skill …

Artificial Nests Identify Possible Nest Predators Of Eastern Wild Turkeys (Abstract Only), Warren C. Conway, Christopher E. Comer

Faculty Publications

No abstract provided.

Roosts Of Rafinesque’S Big-Eared Bats And Southeastern Myotis In East Texas (Abstract), Leigh A. Struemke, Christopher E. Comer, Warren C. Conway

Faculty Publications

No abstract provided.

Validating One-On-One Gps Instruction Methodology For Natural Resource Area Assessments Using Forestry Undergraduate Students, Daniel R. Unger

Faculty Publications

Undergraduate students pursuing a Bachelor of Science in Forestry (BSF) at Stephen F. Austin State University (SFA) attend an intensive 6-week residential hands-on instruction in applied field methods. The intensive 6-week instruction includes learning how to use the Global Positioning System (GPS) with a Garmin eTrex HCx GPS unit to accurately calculate area. Students were instructed how to assess the accuracy of their GPS collected waypoints by calculating the Root Mean Square Error (RMSE) comparing their GPS collected area measurements with instructor on-screen digitized area. Student’s average area RMSE between digitized and GPS derived area was 0.015 hectares, whereas instructor’s …

Overlease Plots, Tree & Amur Honeysuckle Data, 1999-2014, Kendra Mcmillin, Gerard Hertel

William Overlease Plant Succession Study Documents

No abstract provided.

Using Mosses To Assess Conditions In Northern White Cedar Swamps, Vaula L. M. Lukkarinen

Dissertations, Master's Theses and Master's Reports - Open

Northern white cedar (Thuja occidentalis L.) (NWC) swamps are valuable both commercially and ecologically. Unfortunately, many NWC swamps are degraded and information about them is not abundant. Especially there have been no definitive studies about mosses in northern white cedar swamps and how they react to disturbances. Mosses are sensitive to changes in their environment and thus they could be used to assess ecosystem conditions of NWC swamps.

The objective of this study was to determine if mosses could be used to asses conditions in NWC swamps and if there are differences between moss communities in disturbed and …

Development And Evaluation Of High Resolution Simulation Tools To Improve Fire Weather Forecasts, Brian K. Lamb, Jason M. Forthofer, Peter R. Robichaud

Joint Fire Science Program Research Project Reports

Fire weather forecasts rely on numerical weather simulations where the grid size is 4 km x 4 km or larger. In areas of complex terrain, this model resolution will not capture the details of wind flows associated with complicated topography. Wind channeling in valleys, wind speed-up over mountains and ridges, and enhanced turbulence associated with rough terrain and tall forest canopies are poorly represented in current weather model applications. A number of numerical wind flow models have been developed for simulating winds at high resolution; however, there are limited observational data available at the spatial scales appropriate for evaluating these …

Exploring How Deliberation On Scientific Information Shapes Stakeholder Perceptions Of Forest Management And Climate Change, Troy E. Hall, Jarod J. Blades

Joint Fire Science Program Research Project Reports

Climate change has resulted in rapid biophysical changes in forests of the western U.S. and has prompted the need for an increased understanding of potential impacts and adaption measures. Land managers, policy makers, and community officials lack locally relevant climate change science and are urgently calling for research to inform management decisions. Nevertheless, a substantial disconnect remains between emerging scientific information and its application in management decisions. Effective action depends on understanding regional and local implications of climate change and open, reasoned discussions about current research and potential mitigation actions among researchers, land managers, and other stakeholders. Boundary objects have …

Fire Effects On Seedling Establishment Success Across Treeline: Implications For Future Tree Migration And Flammability In A Changing Climate, F. S. Chapin Iii, Teresa N. Hollingsworth, Rebecca E. Hewitt

Joint Fire Science Program Research Project Reports

Understanding the complex mechanisms controlling treeline advance or retreat in the arctic and subarctic has important implications for projecting ecosystem response to changes in climate. Changes in landcover due to a treeline biome shift would alter climate feedbacks (carbon storage and energy exchange), ecosystem services such as wildlife and berry habitat, and landscape flammability. Wildfire frequency and extent has increased in the last half-century in the boreal forest and tundra in response to warmer weather and lower precipitation. Invasion of tundra by trees may be facilitated by wildfire disturbance, which exposes new seedbeds, increases nutrient availability immediately post-fire, and creates …

2014 Greatplants Gardener, Jan Riggenbach, Rachel Anderson, Ryan Armbrust, Laura Armbrust, Bob Henrickson, Louise Lynch, Doug Golick

Nebraska Statewide Arboretum: Publications

One of the goals of the GreatPlants program is to promote tough plants for the landscape, plants that are more resilient in the extreme weather of the Great Plains. With so many plants to choose from, it can be overwhelming for gardeners to decide what to plant. We hope GreatPlants can be your guide to some staggeringly beautiful—and long-lived—plants.

Variation Of Some Seed Mineral Contents In Open Pollinated Faba Bean (Vicia Faba L.) Landraces From Turkey, Faheem Shahzad Baloch, Tolga Karaköy, Ahmet Demi̇rbaş, Faruk Toklu, Hakan Özkan, Rüştü Hati̇poğlu

Turkish Journal of Agriculture and Forestry

The first step towards the biofortification of edible portions of crop species with improved nutritional value is to understand the genetic diversity available to breeders in germplasm collections. A faba bean germplasm (129 landraces and 4 cultivars) from diverse geographic regions of Turkey was assessed for micro- and macroelement contents of seeds. The results showed high diversity in open-pollinated faba bean germplasm for contents of N (27.5-93.3 g kg^{-1}), P (1.24-4.89 g kg^{-1}), K (4.5-19.3 g kg^{-1}), Fe (29.7-96.3 mg kg^{-1}), Mn (15.5-29.2 mg kg^{-1}), Cu (10.3-33.0 mg kg^{-1}), and Zn (10.4-49.3 mg kg^{-1}). Meanwhile, the ranges of mineral elements …

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.

A White Ash (Fraxinus Americana) Status Assessment And Emerald Ash Borer (Agrilus Planipennis) Management Plan For The Gordon Natural Area, Zack T. Signora, Kendra L. Mcmillin, Gregory D. Turner

White Ash Distribution Study Documents

No abstract provided.

East Bradford Riparian Forest Project Summary Data, 2014, Gerard Hertel

East Bradford Riparian Forest Project Documents

No abstract provided.

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.

Influence Of Natural Zeolite On Nitrogen Dynamics In Soil, Stanislav Torma, Jozef Vilcek, Peter Adamisin, Emilia Huttmanova, Ondrej Hronec

Turkish Journal of Agriculture and Forestry

Sorption of the cations NH_4^+, Al^{3+}, Fe^{2+}, Mn^{2+}, and Mg^{2+} in powdered zeolite and its mixture with soil was monitored. More than 90% of the observed cations were fixed in the zeolite in the first few minutes of the laboratory experiment, which is a very fast speed of sorption, and the ammonia cations reacted fastest. Consequently, the dynamics of the nitrate and ammoniac nitrogen in soil after application of zeolite in different amounts was monitored. A decreased ammonium content was apparent in the variants with zeolite 1 month after zeolite application in comparison with variants without zeolite owing to the …

Sudden Aspen Decline Report For Spruce Beetle Epidemic And Aspen Decline Management Response Eis, Jim Worrall, Suzanne Marchetti, Gerald E. Rehfeldt

Aspen Bibliography

Aspen is an important component of GMUG’s forests. Over 288,000 ha (712,000 acres) of aspendominated forest type (TAA) occur across the GMUG (Table 1). Just over half (55%) of the aspen forest type is outside wilderness and roadless areas.

Serendipitous Data Following A Severe Windstorm In An Old-Growth Pine Stand, D. C. Bragg, J. D. Riddle

Journal of the Arkansas Academy of Science

Reliable dimensional data for old-growth pine-dominated forests in the Gulf Coastal Plain of Arkansas are hard to find, but sometimes unfortunate circumstances provide good opportunities to acquire this information. On July 11, 2013, a severe thunderstorm with high winds struck the Levi Wilcoxon Demonstration Forest (LWDF) near Hamburg, Arkansas. This storm uprooted or snapped dozens of large pines and hardwoods and provided an opportunity to more closely inspect these rare specimens. For instance, the largest tree killed in this event, a loblolly pine (Pinus taeda), was 105 cm in diameter at breast height, 39.3 m tall, and if the tree …

Evaluating The Potential Risks And Rewards In The Implementation Of A Redd+ Policy In Uganda, Sage Schaftel

Pitzer Senior Theses

In this thesis, I analyze the potential for a REDD+ program to succeed in Uganda at this time, and I explore why this may or may not be possible. REDD+, which stands for Reducing Deforestation and Forest Degradation, aims to enhance carbon stocks while also conserving and sustainably managing forests. In doing so, REDD+ not only works to offset carbon emission levels and conserve forests and forest biodiversity, but also provides financial benefits to REDD+ participant countries, thus improving the livelihoods of local people living adjacent to forests. This program is widely regarded as the most effective and least risky …