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Capstone Projects

Drying Firewood in the Adirondacks: Development and Evaluation of Four Firewood Drying Systems for Use with the Solar Kiln at Paul Smith's College

Fri, 05/11/2018 - 05:59
Abstract: Four firewood drying system designs have been constructed for future use in the solar kiln drying process. A series of test were compared looking at structure and movement limitations to ensure the structure can withstand placement in the solar kiln. The comparison for each design was made in terms of key performance indicators such as air flow and circulation between the pieces of firewood. Proper moisture content in seasoned firewood is between 15-20%, while green wood when a tree is harvested is between 30-50%. Specific requirements were discussed in more detail, these being overall building, stacking, and drying rates with the over encompassing issue of mobility restraints. Moisture content levels were checked and measured by a moisture meter every day since the beginning of mid-April. All designs were created with respect to the solar kiln that is at Paul Smith's College for future use in promotional and fundraiser events.
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Major: Forestry
Year: 2018
Authors: Nico Petrella, Grant Putnam

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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Major: Biology
Year: 2017
Authors: Amber St. Andrew

Product Feasibility Plan:Little ADK

Fri, 04/28/2017 - 10:35
Abstract: Little ADK’s is a take-home wilderness experience for children between the ages of 4-11. This is an oyster mushroom growing kit that will help a child bring the magic and wonders of the Adirondacks back home, outside the Blue Line (the term used to define the Adirondack Park Preserve.). This pod-based garden system allows children, as well as adults, the opportunity to grow their very own Adirondack native plants. Little ADK’s also comes with an informational booklet and an educational coloring book describing the importance and beauty of the Adirondack Park. Little ADK will be marketed to tourist within the Park as well as to native wilderness lovers. Those purchasing the product can feel environmentally conscientious as Little ADK’s donates 10% of profits toward the preservation of the Adirondack Mountains.
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Major: Entrepreneurial Business Studies
Year: 2017
Authors: Joshua R. Clemens

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

Analysis of Forage Quality in Adirondack Macrophytes: Implications for Waterfowl Nutrition

Fri, 04/29/2016 - 14:48
Abstract: To understand the relative nutritional value of macrophyte food sources for Adirondack waterfowl, the forage quality of four common Adirondack macrophytes were assessed. An analysis of two native pondweeds (Potamogeton) and two invasive watermilfoil (Myriophyllum) was conducted to deduce how invasive and native macrophytes compare in their relative concentrations of nitrogen and mineral content; important indicators of forage quality for waterfowl. Nitrogen content is used as a metric for relative concentration of protein. Macrophyte species were sampled from four Adirondack lakes of the same trophic status to account for effects of lake nutrient characteristics on plant nutrient uptake and synthesis. Total nitrogen was determined with the Kjeldahl procedure using flow injection analysis. Ash (mineral) content was acquired through high-heat burning in a muffle furnace. The invasive watermilfoil species had a higher percentage of nitrogen than the native species. There was no significant difference in the ash content between the species. It is critical to understand the ecological function of these species in relation to wildlife populations. The nutritional value of these aquatic macrophytes may have implications for the fitness and distribution of breeding herbivorous waterfowl in Adirondack lakes. These results may indicate that invasive plants will serve as a viable food source for herbivorous waterfowl as watermilfoil continues to spread across Adirondack aquatic systems.
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Major: Biology
Year: 2016
Authors: Bianca Fournier

Walden Pond: Ecological and Anthropological History Reflected in the Sedimentary Record

Tue, 05/03/2016 - 23:13
Abstract: This study examined environmental changes reflected in the microfossil record of a sediment core taken in August 2015 from Walden Pond, Massachusetts spanning the last 600 years. In particular changes in the eutrophication status, inorganic sediment deposition due to land use, lake water depth and temperature were examined using phytoplankton indicator species—diatoms and chrysophytes— to reconstruct environmental conditions. The study site was a basin shallower and closer to the source of anthropogenic N and P inputs than the site of previous studies at Walden’s deepest basin, allowing for finer detection of changes in water level and organic content of sediment. A gravity corer was used to collect the sediment core to preserve topmost sediment layers for analysis, as more than a decade has passed since the last published study of this kind at Walden Pond by Köster et. al. (2005). Results show a significant increase in indicators of eutrophic lake conditions since European settlement ca. 1630, and especially since the 20th century. However, relative Asterionella formosa and Synedra nana abundances had not changed significantly in the last decade since Köster et. al.’s 2005 study, and have in fact decreased somewhat, suggesting water treatment efforts by the Massachusetts Dept. of Environmental Protection (DEP) have had some success. Loss on ignition (LOI) of organic content shows a precipitous decline from the mid 19th century from 37% to 22%, representing intensive land clearance and development until the 1970’s when DEP management began. After that point, LOI rose, perhaps due to increased lake productivity, and has fluctuated around 25%. Relative Discostella stelligera abundance, while used in the WAl-3 piston core as a proxy for water depth, could not be used in the WAL-1 gravity core from this study as eutrophication has significantly impacted their abundance. Chrysophyte scale:diatom ratios corroborate an observed trend of increasing abundance in lakes globally since the 20th century, perhaps in response to rising global temperatures over the same period.
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Major: Biology
Year: 2016
File Attachments: Capstone Paper.docx
Authors: Erik Yankowsky

Silvicultural Analysis of Northern Hardwood Regeneration at the Paul Smith’s College FERDA Plots

Mon, 05/02/2016 - 10:20
Abstract: In the northeastern forests most regeneration comes from natural regeneration that occurs after a disturbance. The Forest Ecosystem Research Demonstration Area (FERDA) plots located on the Paul Smith’s College VIC in the Adirondack Park are set up as an experiment to test different harvest methods in northern hardwood forests and see the results of each. We analyzed tree and sapling size class inventory data from clearcut, single-tree selection, and control treatments to compare regeneration present 14 years after the first harvests occurred. The clearcut treatments were the only treatments analyzed where American beech (Fagus grandifolia) was not the most abundant tree regeneration present. Both single-tree selection and control treatments were dominated by American beech with few other species present. Our results suggest that creating larger canopy openings, may allow species other than American beech, such as red maple (Acer rubrum) and yellow birch (Betula alleghaniensis) to become the most abundant species present.
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Major: Forestry
Year: 2016
File Attachments: Capstone.pdf
Authors: Zachary McLellan, Justin Saville

Mycoremediation Potential of Pleurotus ostreatus in Logging Operations

Mon, 05/02/2016 - 10:43
Abstract: The unintentional spillage of diesel and hydraulic fluid is an unfortunate part of forestry operations and the traditional cleanup methods can be costly. Many studies have shown that white rot fungi (WRF) are capable of breaking down a wide variety of environmental pollutants, including diesel fuel. The purpose of this study is to evaluate the ability of a WRF, Pluerotus ostreatus, to breakdown hydraulic fluid. Soil and sawdust were mixed at a 1:1 ratio and jars had, 0%, 3%, 5% and 10% of their volume added in hydraulic fluid. All jars were fully colonized within two weeks and after 30 days the concentration of residual hydrocarbon was analyzed with an extraction. The results showed that the maximum degradation of hydraulic fluid occurred at 5%. In addition sawdust spawn was dehydrated at different temperatures, in order to assess possible field application. The only dehydration test that grew was the air dried sample.
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Major: Forestry
Year: 2016
Authors: Peter Murphy, Kirklyn Denis

Growth of Black Spruce and Tamarack in Response to Abiotic Variables

Tue, 05/03/2016 - 12:46
Abstract: The growth of black spruce (Picea mariana) and tamarack (Larix laricina) was examined in relation to the potential influences of pH, dissolved oxygen, conductivity, water temperature, proportion of canopy closure and depth to ground water in a northern Adirondack peatland ecosystem. 42 plots were constructed in a sphagnum dominated wetland and sampled for the above abiotic variables throughout the summer and fall of 2015. Heights, ages and periodic annual increment of 26 tamarack and 23 black spruce samples were determined in February and March of 2016. An age to height ratio and periodic annual increment for each species was then regressed against the above abiotic variable data in order to determine any influence of these data on growth rates of the conspecifics. Results show that depth to water table and increased exposure to light had a significantly positive relationship with the age to height ratio of tamarack. Periodic annual increment of tamarack had a significant positive relationship with decreasing light exposure. Black spruce’s age to height ratio had a significant positive relationship with dissolved oxygen (mg/L).
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Major: Forestry
Year: 2016
Authors: Robert DeSotle

White-tailed Deer Browse Preference: A Comparative Study of the Catskill and Adirondack Mountain Regions, New York State

Tue, 05/05/2015 - 14:23
Abstract: Abundant white-tailed deer (Odocoileus virginianus) in New York State, United States, affect forest regeneration and stand composition through feeding (browse) pressure. White-tailed deer browse preference of six different hardwood tree species in two mountain ranges, the Catskill and Adirondack Mountains, within New York State were compared in order to determine the extent of browse selection by deer. There were no statistically different browse selection by white-tailed deer within the Catskills or Adirondack study area or between each study site. Visual analysis of the study areas after concluding the study revealed that red maple (Acer rubrum) was the preferred browse species at each study site.
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Major: Biology, Natural Resources Management and Policy
Year: 2015
File Attachments: Title, abstract, TOC , Report
Authors: John MacNaught, Blaine Kenyon, Mark Staats, Travis Boucher, Noah Finlayson-Gesten