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Capstone Projects

What Are the Differences in Trichome Density and Morphology Between Arabidopsis Lyrata Subsp. Lyrata Populations When Grown in A Northern Common Garden, Outside of Their Geographic Distribution?

Tue, 04/30/2019 - 15:23
Abstract: Trichomes are diverse among plants. There is evidence suggesting that environmental factors may influence these structures and their densities. Other evidence shows that weather may influence genetics and gene expression. Arabidopsis lyrata subsp. lyrata is a wild flower that is native to North America and Europe and has been extensively studied. Literature regarding Arabidopsis states that within the family and genus, there is evidence suggesting that trichomes can be either non-branched, twice branched or thrice branched. This study’s purpose was to analyze how trichome density, and morphology in Arabidopsis lyrata subsp. lyrata differs between populations when grown outside of the natural distribution limit. Four populations of Arabidopsis lyrata subsp. lyrata were studied based on latitude. After analyzing the outcomes, unexpectedly there are no major differences between the north and south populations; however, there are differences between the four populations. Based on the data gathered, it was determined that the population, North2 (07G) must be genetically different from the other three populations. The four populations were grown together in a common garden; thus, all variables were the same. The environment did not influence trichome density or morphology within the North2 population, therefore the structures were genetically pre-determined.
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Major: Biology
Year: 2019
File Attachments: Scarabaggio_A.docx
Authors: Amber My Scarabaggio

Planning and Future Management of the Adirondack Land Trust Glenview Preserve

Sat, 05/11/2019 - 08:51
Abstract: The Adirondack Land Trust purchased a 238 acre parcel of land, Glenview Preserve, from the Trevor family in 2016. The Glenview Preserve is located along New York State Route 86 in Harrietstown. The Glenview Preserve already consists of a heavily visited scenic vista of Whiteface Mountain, the McKenzie Range, and other Adirondack High Peaks. The property borders the Bloomingdale Bog, the third largest boreal peatland in New York State. The Glenview Preserve can be a perfect spot to incorporate a trail system to allow visitors the opportunity for non-consumptive recreational activities. When creating a trail system for recreation it is important to examine the impacts on local flora and fauna. A clearly designated trail system is the number one way to mitigate impacts on soil, vegetation, wildlife, and water created by visitors. Within the preserve interpretive signs will be implemented to educate and inform visitors on proper usage of the trail system. The unique thing with the area is the gradual grade of only 50 feet so the breathtaking views are virtually accessible to everyone who visits. Recreational activities allow people to get outside and enjoy nature and hopefully build personal environmental stewardship. The trail system will not only allow recreational opportunities for visitors but establish a sense of an outdoor community.
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Major: Natural Resources Conservation and Management
Year: 2019
File Attachments: Capstone_Murray 2019.docx
Authors: Payton Murray

Reinvigoration of the Champlain-Adirondack Biosphere Reserve: Stakeholder Perceptions

Tue, 05/08/2018 - 15:02
Abstract: The Champlain-Adirondack Biosphere Reserve (CABR) was designated by the United Nations in 1989. This reserve spans the entire Adirondack Park, and includes the Lake Champlain Valley in Vermont as well. Biosphere reserves focus on conservation at a global level, and use international knowledge from lessons learned to best benefit each specific biosphere. Although CABR was designated in 1989, it became classified as inactive soon after. In 2016, Brian Houseal, Director of SUNY's College of Environmental Science and Forestry Newcomb Campus, prepared a periodic report to UNESCO on CABRs current status. The goal of this research was to determine the probability of stakeholder support to bring CABR out of inactivity, almost 20 years after it was designated originally. The research performed focused on stakeholders’ awareness and perceptions of the CABR, along with past indications of concerns and resistance among local residents. The research addresses this deficit and identifies and clarifies our representative’s samples perceptions of the designation. The research revealed that land use rights were still the major concern. The research revealed that this was still a concern because there is still a major lack of information on the CABR land classifications/land use rights. Information on CABR was concluded to be one of the largest challenges at this time. This research revealed that 68% of the residents were unaware of CABR until the periodic review was published in 2016, and over 40% of the residents had no idea what CABR was until they received an invite to come to the focus group.
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Major: Arboriculture and Landscape Management, Parks and Conservation Management
Year: 2018
File Attachments: Coolidge Capstone 2018.docx
Authors: Nicholas Coolidge

A Comparison of Winter Wildlife Use of Minimally, Moderately and Highly Impacted Shorelines on Lower St. Regis Lake and Black Pond in the Adirondack Park, NY

Wed, 05/09/2018 - 10:51
Abstract: Continued development and human interference with freshwater shorelines creates a degraded environment and can negatively affect native wildlife along impacted areas. Throughout the Adirondack Park, shorelines have experienced substantial degradation with the development of lakeside summer homes. There tends to be a strong preference for the aesthetics that lakes offer, as well as the numerous recreational opportunities they provide. The increased human use of shorelines and the development of anthropogenic structures has directly resulted in the degradation of shorelines in the Adirondack Park. Likewise, the Paul Smith’s College shoreline along Lower St. Regis Lake has been subjected to degradation throughout the history of the campus. This highly impacted site was selected, alongside minimally and moderately impacted sites in the surrounding areas as representatives for different impact levels. Shoreline degradation includes a decline in the health and presence of natural vegetation, creating a decrease in available food source for native wildlife. The removal of natural vegetation creates a decline in shoreline stability with the removal of root systems, allowing for greater amounts of erosion to occur. Additionally, degradation decreases available canopy cover and increases exposure of wildlife to predation. The objective of this study was to determine the difference in wildlife activity and diversity between three levels of shoreline impacts: minimal, moderate, and high. It was expected that the minimally and moderately impacted shoreline sites would show a greater diversity and abundance of wildlife than highly impacted shorelines. Trail camera data was analyzed at three sites for each treatment on Paul Smith’s College property, along both the Lower St. Regis Lake and Black Pond. Although we detected no significant differences in either activity or diversity across the treatments, there was higher relative activity and diversity in moderately impacted shorelines than minimally or highly impacted. However, wildlife species that are more rare and/or area-sensitive, such as the fisher (Martes pennanti) and American marten (Martes americana), were only detected in the minimally impacted shorelines of Black Pond. A restoration of the highly impacted shoreline to reflect minimally and non-impacted shorelines of the surrounding region would allow for opportunities to improve habitat for native wildlife species.
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Major: Biology, Ecological Restoration, Environmental Sciences
Year: 2018
File Attachments: Shoreline Restoration
Authors: Tessa White, Caroline Matuck, Kasey Lane, Rosemary Bloodnick, Kyle Pasanen, Annalee Kraai

Effects of Silvicultural Treatments on Wildlife Communities at the Paul Smith's College Forest Research Demonstration Areas

Fri, 05/11/2018 - 16:15
Abstract: Logging has drastically altered North American forest ecosystems for centuries. While extensive studies have been done to determine the impacts of different silvicultural practices on plant communities, minimal research has evaluated the impacts on wildlife communities, particularly in the Adirondack Mountains. Silvicultural practices may significantly impact wildlife communities due to the disturbances it causes, as well as the way it alters the habitat. We monitored winter wildlife communities in the Forest Ecosystem Research Demonstration Area owned by Paul Smith’s College in the Northern Adirondack Park. By analyzing the data collected by trail cameras, tracks and measuring percent browse, we compared the abundance and diversity of wildlife in three silvicultural treatments (i.e., clearcut, group selection, control). We also collected data regarding the physical aspects of the silvicultural treatment plot (i.e. canopy cover and snow depth) to indicate the kind of available habitat. We found that despite there being the highest average relative activity in group selection, there is no significant relationship between average relative activity and harvest treatment type. Using the Shannon-Weiner Diversity Index, we found that the highest diversity was in control/reference. Due to our limited treatment sample size, we did not have conclusive findings in most areas of our study. However, the highest total tracks and relative activity were found in the clearcuts. We suggest that more research be done on this study in order to eventually make forest management plans that properly account for both plant and wildlife species.
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Literary Rights: On
Major: Biology, Environmental Sciences, Natural Resources Conservation and Management
Year: 2018
Authors: Jacob Adams, Caitlin De Bellis, Tyler Fisk, Hyla Howe, Mark McHugh, Daniel Sutch

Influence of Slope on Soil Organic Carbon on Costa Rican Coffee Farms.

Mon, 05/07/2018 - 10:21
Abstract: Soil management is an important factor on agroforestry farms that help with soil fertility and carbon storage. Coffee agroforestry farms in Central Valley Atenas, Costa Rica were analyzed between November 2008 and May 2017. The objective of this study was to see if there is a relationship between mean slope and annual soil organic carbon sequestration (Mg/ha), and mean slope and soil organic carbon storage (Mg/ha), from samples taken on November 2008/May 2009 and November2016/ May 2017. Sample were taken on five farms with twenty 0.05 ha plots. Many coffee farms in the central valley are assembled on steep slopes or sides of mountains. Steep slopes are susceptible to erosion affecting the amount of soil organic carbon sequestration and storage. There was not a significant relationship found between mean slope and loss of carbon sequestration annually in November 2016/ May 2017 (Mg/ha). Mean slope and soil organic carbon storage from November 2016/May 2017 were compared by testing the effects of slope with carbon storage and there was no relationship. Whereas a statistically significant positive relationship was found between mean slope and soil organic carbon storage from November 2008/ May 2009. Additional data was examined to look at annual carbon sequestration loss on conventional and organic farms. However there was not a significant difference between the two. When all farms were compared for their annual carbon sequestration loss, marginally significant difference was found, but reasons for these differences remain a hypothesis. Further research to examine these differences may include practices of the farmers and erosion steeper slopes before erosion implications were taken by the farmers.
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Literary Rights: On
Major: Environmental Sciences
Year: 2018
File Attachments: JMcLaughlin_Capstone.docx
Authors: Jessica McLaughlin,

A Comparison of Macro-Invertebrate Communities in Different Substrates among Impacted and Minimally-Impacted Sites on Lower St. Regis Lake and Benchmark Sites on Black Pond

Wed, 05/03/2017 - 21:34
Abstract: Many shorelines today have been impacted by human activities which has resulted in changes in macro-aquatic invertebrate communities. Ecological restoration can be used in efforts to bring macro-aquatic invertebrates back into shorelines. However, data is needed to better understand how macro-aquatic invertebrates can be used in these efforts as indicator species to determine community structure health and function. This project compared the macro-aquatic invertebrate communities in impacted and minimally impacted sites located on Lower St. Regis Lake and benchmark sites located on Black Pond. The two objectives to this project were to 1) compare the species richness among impact levels and 2) compare the density among impact levels. Each impacted level has three sites and at each site ten samples were taken in a systematic way which resulted in 90 total samples. Samples were taken to the lab to be sorted and for macro-aquatic invertebrates could be identified to the family level. The macro-aquatic invertebrate community was different among each impact level. The overall family diversity was greater at the benchmark sites than the minimally impacted and impacted sites. Dominate substrate type that had a greater presence of different families were sites that had organic matter. The findings of this study create a more knowledge base which can be useful for future ecological restoration efforts on the impacted and minimally impacted areas located on Lower St. Regis Lake and to educate the public on the impacts on macro-aquatic invertebrates and their communities.
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Literary Rights: On
Major: Biology
Year: 2017
Authors: Amber St. Andrew

Comparison of Fine and Coarse Organic Matter Among Levels of Shoreline Impact: Implications for Ecological Restoration

Mon, 05/01/2017 - 15:24
Abstract: Human lake shoreline development has been shown to have impacts on the dynamics of the lakeshore. Such dynamics include the riparian and littoral zones interactions; the complexity, abundance, and residence time of large woody debris; organic matter/detritus, and food webs for fish, birds, and macroinvertebrates. Understanding such dynamics, and the impacts of human development, are important when attempting to restore the shoreline through the process of ecological restoration. The objectives of the study were, (1) to compare the amount of organic matter (smaller than sticks, branches, logs, and trees) among three levels of impact (impacted, minimally impacted, and benchmark), (2) to compare the amounts of CPOM and FPOM among the three levels of impact. The field data was collected using a modified design of sediment corer. A total of 63 samples were taken and the results clearly showed that the reference (benchmark) site had a much higher accumulation of organic sediment along the shoreline. Also, the data analysis also showed that there was virtually no measurable FPOM among the impacted and minimally impacted sites, but among the references sites it was more abundant than CPOM, which was opposite from the impacted and minimally impacted sites.
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Literary Rights: On
Major: Environmental Sciences
Year: 2017
File Attachments: Final_Morrill.docx
Authors: John Morrill

A Comparison of Leaf Litter in the Aquatic, Terrestrial, and Transitional Zones among Impacted, Minimally Impacted, and Benchmark Conditions of the Shorelines of the Lower St. Regis Lake and Black Pond

Mon, 05/01/2017 - 17:55
Abstract: Human development of shorelines impacts structure and functionality of the shoreline’s ecosystems. Ecological restoration projects can be used to rectify this impact, but first data must be collected to determine the extent of impact human development has had on the shoreline. The objective of this study was to compare the biomass (wet and dry weights) of deciduous and coniferous leaf litter among impacted, minimally impacted, and benchmark shorelines and between terrestrial and aquatic zones. Data was collected among the three impact levels on the Paul Smith’s College property along the shores of Lower St. Regis Lake (impacted and minimally impacted) and Black Pond (benchmark). Deciduous and coniferous leaf litter was collected in the aquatic and terrestrial zones of the shoreline and among the three impact levels using 0.7 m2 terrestrial and 0.25 m2 aquatic quadrats, and then compared using nonparametric statistical tests to determine differences among impact levels and between zones. The results of this study revealed that the relationship between deciduous and coniferous leaf litter was more nuanced than expected. The study supported the current body of scientific knowledge in that shoreline development decreases the overall amount of leaf litter accumulated in the shoreline of lakes. However, should future studies on variation between deciduous and coniferous leaf litter be conducted, the criteria for impact levels should be expanded to ensure the sites used are more comparable in forest type.
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Literary Rights: On
Major: Environmental Sciences
Year: 2017
Authors: Hannah Ashdown

Does the presence of Malus spp. increase the fertility of the soil surface in pastures?

Mon, 05/01/2017 - 18:24
Abstract: Techniques to increase soil fertility in a pasture can benefit the system by combating soil degradation and increasing the health of vegetation. The use of apple trees (Malus spp.) may be particularly beneficial in achieving this due to reliable fruit yields, ease of management, and variety of suitable habitat. We hypothesized that soil directly under the canopy of apple trees would be higher in nutrients (C, Ca, K, Mg, N, & P) than soil in areas with no tree cover. Soil samples were taken from the top 15 cm of the soil surface under apple trees and in areas without trees at 14 sites in Massachusetts and New York. Samples were analyzed using spectrometry and color imagery to determine nutrient content. Potassium and magnesium concentrations were found to be significantly higher in under-canopy samples. Further research may expand these results and determine if the application of apple trees can be used to increase the health of pasture systems.
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Major: Environmental Sciences, Forestry
Year: 2017
File Attachments: capstone_gumbartpayson.pdf
Authors: Julia Payson, Ryan Gumbart