Monitoring the Zebra Mussel Invasion Front: Use of New Technology
Thu, 02/09/2012 - 15:39
Abstract: Zebra mussels are invasive mollusks that are affecting the well-being of the water bodies in the United States. This study uses environmental DNA (eDNA) is a sensitive early detection system that may be useful in monitoring their spread. The purpose of this study is to determine the effectiveness of eDNA technology in identifying infested water bodies, to determine if zebra mussel DNA is in the Adirondack water bodies not known to be infested, if the water chemistry of these water bodies is favorable for zebra mussel establishment, and if the eDNA technology is transferable to an institution like Paul Smith’s College. Eighteen lakes, all in New York State were sampled, fifteen of which are located in the Adirondack Park. DNA was extracted from water and plankton samples and species specific primers were used for PCR amplification to determine if zebra mussel DNA was present. Of seven samples taken from sites known to be infested, five of these tested positive for zebra mussel eDNA. Four lakes not known to be infested within the Park also tested positive for zebra mussel eDNA. Based on zebra mussel risk parameters (water chemistry) applied to 1,469 Adirondack water bodies, less than 3% are at risk of zebra mussel establishment. However it is possible that established populations could occur at microsites that may have locally high levels of calcium and higher pH.
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Major: Biology, Environmental Sciences, Environmental Studies, Fisheries and Wildlife Science, Forestry, Natural Resources Management and Policy
File Attachments: The Author has selected not to publish this complete work.
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.
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Major: Environmental Sciences, Fisheries and Wildlife Science, Forestry, Natural Resources Management and Policy, Recreations, Adventure Travel and Ecotourism
File Attachments: FOR 2011 Final Compiled Version 12_14_12.docx
Effects of Forest Cover Type on Carbon Sequestration Rates
Mon, 12/05/2011 - 14:42
Abstract: Climate change and mitigation of climate change are common dilemmas faced by the majority of people within the United States. At the heart of climate mitigation techniques are forestry practices aimed to promote increased carbon sequestration. Forests are effective at sequestering carbon because they act as carbon sinks for the majority of their life. The purpose of this study was to examine the effect that Northeastern forest cover types have on the rate of carbon sequestration. This was done by examining the major forest cover types: northern hardwoods, mixed woods, and conifer forest cover types within Vermont and New Hampshire. This study entailed timber sampling to determine the amount of above ground carbon, increment boring to determine growth rates, soil samples to calculate subsurface carbon, and forest floor samples to determine accumulated carbon in the forest floor. During the study it was found that the conifer stands exhibited the highest rate of carbon sequestration, attributed greatly to the high growth rates and high stocking densities that characterized these stands. In addition, the majority of carbon within all the stands was found to be within the forest soils, which indicates particular attention should be given to this area when managing for carbon sequestration. In conclusion, some suggested management techniques for increasing carbon sequestration rates could include extending the rotation age to capitalize on the entire accelerated growth stage of the trees, and promoting multiple age classes within the stands which would allow for less intensive harvest regimes.
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File Attachments: Final_Draft_Capstone_Hazen.docx
Removal of Japanese Barberry (Berberis thunbergii) in a Hardwood Forest in Northwest Connecticut
Mon, 12/05/2011 - 09:57
Abstract: Japanese barberry is an invasive shrub that has overtaken and invaded the forest land of New England. Once established, Japanese barberry grows into dense populations that affect forest regeneration, and availability of different nutrients in the soil. This study focused on determining the most time efficient way to remove Japanese barberry from an area. The amount of time it took to complete each removal method was compared with how effective each method was. The effectiveness of each method was based upon how many stems were removed, and how many stems sprouted after a treatment occurred. Four methods were used which included; root severing, cutting stems, burning stems and a herbicide foliar application. It was found that digging stems took a large amount of time, while stem cutting and burning took a moderate amount of time, and the use of herbicide took a small amount of time. It was found that root severing was the least effective method, producing a high amount of new stems and taking the longest time. Herbicide treatment of stems was the most effective method, producing no new stems after treatment and taking a short amount of time to complete. Out of all the methods, two methods had equal expenses. This study has determined the most efficient and least effective way to remove Japanese barberry from a typical New England hardwood stand.
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File Attachments: Capstone Paper.docx