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Capstone Projects

Antifungal activity of propolis, neem oil, and cedarwood oil against the white-rot fungus Trametes versicolor on American beech

Fri, 12/07/2018 - 16:27
Abstract: Fungi are often considered the most destructive organisms to attack wood that has gone through the milling process, so developing compounds to resist decay are extremely important. Copper chromated arsenic (CCA) was an industry standard until 2003 when its use was restricted due to environmental concerns. Thus, research into environmentally friendly compounds has become more common. This study investigated which compound, propolis extract, neem oil, or cedarwood oil, would best preserve beech wood exposed to Trametes versicolor. Extracts for each of the compounds were prepared using denatured ethanol, and infused into wood blocks using a vacuum pump. Blocks were made of American beech (Fagus grandifolia Ehrh.) and were 10mm x 20mm x 5mm in size. The blocks were subjected to a common white-rot fungal strain, Trametes (= Coriolus) versicolor (L.) Lloyd (1920), for six weeks. Overall, propolis and cedarwood oil treated blocks lost significantly less mass than both neem and control blocks, suggesting they have potential for use as natural wood preservatives, and could be used as cobiocides.
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2018
File Attachments: Final Capstone Report.docx
Authors: Adam Milenkowic, Timothy Otis

Coarse Woody Debris Volume Following Conventional and Whole-Tree Harvesting

Tue, 12/04/2018 - 16:50
Abstract: Coarse woody debris (CWD) affects important ecological patterns and processes in the forest, including nutrient cycling, carbon stocks, wildlife habitat, regeneration dynamics, and hydrology. Timber harvesting practices have been shown to affect the abundance and distribution of CWD in forest stands. This study separates timber harvesting practices into two categories: conventional harvesting (CH), where only the main stem of trees and possibly some large branches are harvested, leaving branches, twigs, leaves, buds, and other plant parts to decompose on the forest floor, and whole-tree harvesting (WTH), which removes the entire aboveground portion of trees. I measured post-harvest CWD volume within recent patch clear cuts in Vermont, comparing results between CH and WTH. Conventional harvesting sites contained significantly more (p = 0.04) CWD volume (954ft^3/ac) than WTH sites (422 ft^3/ac). In other words, CH resulted in a post-harvest CWD volume 126% greater than the volume resulting from WTH. The most important difference was a wide discrepancy between treatments in decay class 2, which contained 66% of the total CWD volume. The increased reduction of CWD through WTH, especially when carried out over multiple rotations, may have negative effects on future site productivity, as well as richness and abundance of wildlife. The choice to employ CH or WTH may also affect the carbon balance, regeneration dynamics, and hydrology of forest stands.
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2018
Authors: William (Bill) Musson

ECTOMYCORRHIZA’S INFLUENCE ON SEEDLING GROWTH

Tue, 12/04/2018 - 14:16
Abstract: Mycorrhizae play an important role in forest ecosystems through their symbiotic relationship with trees and root systems. Of the mycorrhizae, ectomycorrhiza (EM), specifically targets softwood species and some hardwoods. In this experiment, the results of a powdered EM inoculum and red oak (Quercus rubra L.), pitch pine (Pinus rigida Mill.), and red spruce (Picea rubens Sarg.) were evaluated during one growing season. The study compared a control of no EM and treatment with EM in seed grown trees in containers. Difference between heights of the treatment and control were recorded to see if the inoculum impacted seedling growth of the host species. Throughout this capstone the hypothesis states: An ectomycorrhizae (EM) powdered inoculum would influence pitch pine, red spruce, and red oak seedlings height and biomass for the duration of one growing season (April-Late August). Red oak control exceeded treatment in biomass but not height, and pitch pine and red spruce treatment exceeded control in height and biomass.
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2018
File Attachments: finalreport_slinger.docx
Authors: Samantha L. Slingerland

Alpine Ecosystems on Ski Area Summits in the Northeast: A Best Management Practices Manual

Mon, 12/01/2014 - 15:19
Abstract: Over the past half a century, anthropogenic climate change has triggered temperatures in the northeastern United States to rise. This increase has led to decreased winter precipitation and a longer annual growing season. Species found in upland/montane habitats on the southern edge of their range limits are particularly threatened by these changes. Warmer temperatures have allowed larger woody plants to advance up mountain slopes, entering the habitat of these fragile species. In the next decade, we will witness a complete disappearance of alpine flora from several locations across the northeast including Whiteface in New York, Sugarloaf in Maine and Mount Mansfield in Vermont. Managers of ski resorts can therefore play an important role in promoting the continued persistence of high-altitude flora and fauna through carefully considered management decisions can also serve to promote the reputation of the ski industry as stewards of mountaintop ecosystems. Doing so will allow for continued study of the species that exist within these communities, the protection of biodiversity, and increased revenue for the resort itself through elevated public image and mountain-top tourism. To help begin these conservation efforts, we have created a best management practice (BMP) manual to guide ski area managers in making these developments. It includes techniques for sustainable slope, soil, vegetation and wildlife management, erosion control, artificial snow production, and ski slope construction and design. Also included are marketing techniques and an overview of the economic viability of the practices outlined in this manual.
Access: Yes
Literary Rights: On
Major: Forestry, Natural Resources Management and Policy
Year: 2014
Authors: Pali Gelsomini, Dylan Randall

Forest Succession's Effect on Soil Physical and Chemical Properties after Agriculture Abandonment

Mon, 12/01/2014 - 11:00
Abstract: Landscapes have been significantly altered by humans and replacing forests with agricultural crops is a major alteration humans have made. This landscape change has affected soils significantly. Agriculture practices can potentially have detrimental effects on soils. However, through the 20th century forest cover drastically increased in the United States through the recruitment of second growth forests as a result of agriculture abandonment. Forests reclaiming farm lands through forest succession can have a significant effect on recoveries in soil physical and chemical properties such as bulk density, soil strength, porosity and fertility. Therefore, the goal of this study was to investigate forest successions effect on soil physical and chemical properties after agriculture abandonment. Three specific hypotheses were tested: 1) Bulk density and soil strength will decrease while micro and macro porosity will increase as forests reclaim farm lands. 2) Soil carbon and available nitrogen will increase over time. 3) Soil pH will decrease and electrical conductivity will increase over time. These hypotheses were explored on abandoned agriculture fields in a chronosequence study on coarse loamy Inceptisols in upstate New York across a 60 year temporal scale. Data showed that total porosity, total carbon and available nitrogen increase while soil pH, bulk density, soil strength and electrical conductivity decline over time. These results support all three hypotheses except for the latter half of hypothesis number three. The findings of this study suggest that although agriculture may disturb soil properties, time coupled with forest succession can result in significant recoveries.
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2014
File Attachments: Final Report.docx
Authors: Nathan Piché

Promoting Conservation of Biodiversity in the Adirondack Park Through Understanding and Engaging Stakeholders

Thu, 02/09/2012 - 11:31
Abstract: Anthropogenic disturbance of natural environments has led to the widespread loss of native biodiversity and degradation of ecosystems. It is increasingly recognized that addressing this “biodiversity crisis” entails understanding the societal drivers of unsustainable patterns of use. Conservation psychology is a new discipline that specifically focuses on understanding the linkages between human behavior and action and promoting a healthy and sustainable relationship between humans and nature. In this project, we employed principles of conservation psychology with the goal of improving the efficacy and efficiency of conservation of biodiversity in the Adirondack Park (AP). To meet this goal we employed three specific strategies. The first of these strategies was the use of surveys to assess the values, attitudes, and actions different stakeholders have in regards to conservation of biodiversity in the AP. These surveys were disseminated via both direct mailings and online, and included 30 questions. Our second strategy was to use discourse analysis to create a dictionary of terms and phrases employed in a positive, neutral, and negative light in regard to conservation of biodiversity. This entailed analysis of 30 emic accounts derived from opinion articles written by stakeholders in the AP, as well as analysis of a number of etic accounts drawn from online sources. Our third strategy was to use conservation psychology literature to assess ways in which the presentation of information and peer-dynamics influenced the responses of stakeholders towards conservation of biodiversity. Using the combination of these three strategies, we were able to provide a holistic understanding of how different stakeholders in the AP perceive and act towards biodiversity conservation; identify language that can be used to illicit a more positive response from these stakeholders; and identify specific tools based on principles of psychology that can encourage more active and effective engagement in conservation of biodiversity by different stakeholders. Our research findings will allow groups focusing on promoting conservation of biodiversity in the AP to be more effective and efficient in their work in the future.
Access: Yes
Literary Rights: Off
Major: Environmental Sciences, Fisheries and Wildlife Science, Forestry, Natural Resources Management and Policy, Recreations, Adventure Travel and Ecotourism
Year: 2011
Authors: Christopher Critelli, John Ghanime, Derek Johnson, Samantha Lambert, Justin Luyk, Matthew Parker, Robert Vite, Heather Mason, Jesse Warner, Ethan Lennox, Sarah Robbiano, David Mathis, David A. Patrick

Ecological Education toward Environmental Responsibility: Envisioning and Implementing an Interpretive Trail System for an Adirondack Summer Camp

Tue, 12/06/2011 - 13:44
Abstract: In an age when children are increasingly cut off from the natural world, summer camps have the power to influence these formative years in a fundamental way. Summer camps, especially organized residential summer camps, have an inherent advantage over the school setting because the audience views itself as non-captive. Because grades and tests do not exist in the camp setting, environmental education is free to continue at its own pace, based on the interests and desires of the campers. The purpose of this project was to build, partly and also find and produce the most effective way in which to utilize an existing recreational trail as an educational resource at a summer camp in the Adirondacks. In determining the most effective format toward this purpose, an interpretive guide book was chosen. The goal was to fit this book into, and expand on, the core philosophy and values of the camp. It is meant to serve as a starting point, a tool to pique interest and obtain a broad understanding and appreciation for the local ecosystem, which will hopefully lead to a “land ethic” in the future.
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2011
Authors: Tucker Culpepper

Silvicultural techniques for white-tailed deer (Odocoileus virginianus) habitat management

Tue, 12/06/2011 - 09:25
Abstract: White-tailed deer (Odocoileus virgianus) habitat is most commonly managed through forestry activities such as timber management. Sound silvicultural prescriptions and management scheduling can increase the lands carrying capacity of white-tailed deer through increased food availability and cover habitat. Biologists claim that white-tailed deer will eat an average of six to seven pounds of food daily, which makes food management a key factor when increasing deer densities. This study examined what silvicultural techniques are best used for increasing deer inhabitance on a family farm in west central Vermont. Currently, the study area is occupied by a large percentage of undesirable stand structures and plant species occupancy. Some of these stands were created through old pasture succession. The focal point of this study was to prescribe management tactics to better the habitat for white-tailed deer. Forest inventory through point sampling was used to make silvicultural prescriptions for six different stands within 163 acres of farm forest. Combinations of two-age and uneven-age treatments were suggested for the study area to increase species diversity and structural diversity. Uneven-age small group selections and single tree selections were recommended for the forest interior to promote cover habitat, and small patch cuts were recommended for bordering forest stands to promote a woody browse food source.
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2011
File Attachments: capstone
Authors: Tyler Pelland

Forest Habitat Management for Creating Self Sustaining Populations of Ruffed Grouse on Tug Hill Plateau.

Mon, 12/05/2011 - 16:38
Abstract: The ruffed grouse (Bonasa umbellus) is a perhaps the most popular game bird in the northeast. According to locals, the populations of ruffed grouse in the Tug Hill Plateau region located in upstate New York have been on a steady downhill trend over the past several years. This study was focused on habitat, and meant to gain insight on what current habitat exists on Tug Hill Plateau. Two separate study areas were utilized during this project. The first was named the River Road Covert study area, and is part of the Lookout State Forest, located in Lewis county New York. The second was named the Montague Covert study area, and is located in Montague New York, on parker road 10 miles from Montague Inn. Within each study area habitats were classified by cover type. Using fixed plot habitat survey methods, and aerial photo interpretation each study area was subdivided into first quadrants and then stands. A transect style flush count was then implemented in each study area in order to determine which stand possessed the specific cover type most preferred by local populations of ruffed grouse. During the flush count, a more specific data collection pertaining to habitat was taken in areas where grouse were flushed, and consideration was given to the time of year the survey took place in regards to the seasonal habitat preferences of this species. The purpose of this study is to identify what habitats within each study area were most highly favored by grouse, and which habitats were less likely to be utilized given their current condition. After completion of the data analysis researched recommendations were made as to how to manage the less favorable areas for the scarce early successional habitat which ruffed grouse were found to typically associate with.  
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2011
File Attachments: Capstone Report , Appendix A , Appendix B
Authors: Keith F McDonald

Searching for the Emerald Ash Borer (Agrilus planipennis) in an Un-Infested Area While Interpreting the Effects of Educational Outreach to the Private Landowner

Mon, 12/05/2011 - 16:04
Abstract: Nonnative invasive insect pests can alter the habitat and transform the ecosystems they have invaded, leading to ecological and economical problems. The emerald ash borer (EAB) is an invasive insect that constricts nutrient and water transport in the cambium of ash trees. The EAB has no known eradication method to stop its potential spread across the landscape. The purpose of this study is twofold: 1) to educate the landowner about EAB and 2) to look for EAB in an un-infested area. Survey questionnaires were given before and after the study. The pre-study questions measured landowners’ background knowledge of EAB. The post-project questions gave insight to how the study helped the landowner learn more. A sentinel (girdled) tree survey was conducted at each of four study sites with two purple sticky traps installed and monitored bi-weekly. No emerald ash borers were found, but the public outreach component was successful. Landowners play an important role in being aware of invasive species and alerting natural resource professionals. The landowners gained knowledge about EAB. EAB outreach helped give land management advice to landowners, pertaining to the threat of EAB. The landowners felt confident in helping inform other members of the public and help identify EAB infestations. Keywords: Emerald ash borer (EAB), public outreach, Questionnaire, Sentinel/Girdled tree, purple sticky trap, Identifying Emerald ash borer, Questions Analysis, Educate the landowner, invasive, nonnative, pest
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2011
File Attachments: capstone_final_proj.docx
Authors: Richard A. Silvestro