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.
Literary Rights: On
File Attachments: capstone
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.
Literary Rights: On
File Attachments: Tucker Culpepper's Capstone Project.pdf
Changes in aquatic communities resulting from interactions between climate change and invasive aquatic plants in the Adirondacks.
Thu, 02/09/2012 - 11:26
Abstract: Global climate change can act synergistically with invasive species leading to shifts in ecosystem structure and function. We assessed how a rise in water temperature influenced the potential competitive advantage of an invasive aquatic plant, Eurasian watermilfoil, (Myriophyllum spicatum) over a co-occurring native species northern watermilfoil (M. sibiricum). We also examined the interrelationship between water temperature, watermilfoil, and the aquatic ecosystem including periphyton growth and zooplankton abundance. The study was conducted using replicated mesocosms (3785-liter), with water heaters used to provide a range of temperatures. We found that increasing water temperature promoted the likely competitive advantage of the invasive species, M. spicatum: Survival of M. sibiricum plants was lower than that of M. spicatum across all temperature treatments with a mean survival rate of 24% and 96% respectively. M. sibiricum also showed significantly slower rates of plant growth (mean growth of 3.3 cm compared to 7.6 cm for M. spicatum) and reduced vigor compared to M. spicatum, with an average of less than half the number of growing meristems. Zooplankton densities averaged over 20 times higher in mesocosms with M. sibiricum compared to those with the invasive M. spicatum. Periphyton biomass was best explained by water temperature with an increase in growth in warmer water. Our study confirms that in the face of global climate change, the invasive M. spicatum will continue to exert dominance over its native counterpart. Our results also provide compelling evidence that the combined effects of climate change and invasive aquatic plants can dramatically alter aquatic ecosystems.
Literary Rights: Off
Major: Environmental Sciences, Fisheries and Wildlife Science, Forestry, Natural Resources Management and Policy
File Attachments: Climate change and milfoil draft FINAL.doc