Cultural eutrophication of Lower Saint Regis Lake using diatoms and organic content as indicators of eutrophication.
Tue, 04/28/2020 - 12:06
Abstract: Cultural eutrophication can greatly affect water quality, leading to algae blooms and can affect fish communities. Throughout the history of Paul Smith’s Hotel and College, development along Lower St. Regis lake has led to increases in eutrophic conditions, which has detrimental effects on water quality. In this study, a sediment core from Lower St. Regis Lake was analyzed to determine when past eutrophication events occurred. This was accomplished using species counts of diatoms from every 1.0 cm of sediment. The relative abundance of diatom species such as Tabellaria flocculosa, Asterionella formosa, and Fragilaria crotonensis were used as indicators of more eutrophic conditions. Loss on ignition (LOI) was also used to measure the organic content in the sediment at increments of 0.5 cm. The higher percent lost on ignition indicates higher productivity in the lake and more eutrophic conditions. Some samples from the sediment core were also dated using lead-210 to create a timeline that could be compared to known dates of events occurring along the lake that could have affected the trophic status of Lower St. Regis Lake. There was a sudden spike in the relative abundance of F. crotonensis and an increase in organic content at a depth of 20 cm in the core, indicating that conditions became more eutrophic. Based on the lead-210 dates, this spike in F. crotonensis and organic content occurred between 1898 and 1908, when development around the lake was increasing and Paul Smith’s Hotel added indoor plumbing with poor wastewater treatment practices.
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File Attachments: Capstone_0.docx
Alumni Campground Lean-to Design Analysis
Sat, 05/09/2020 - 11:32
Abstract: When thinking about the Adirondacks, lean-tos are among the first that come to mind. The Adirondack lean-to has, for most of the parks history, been a staple for back country shelters. The design of the lean-to is the most important part about them. Traditionally built with full round logs to have three walls and one open side with an overhang from the roof. Notches in the logs at each corner of the lean-to allow for the structure to be more ridged then if notches were not used. The goal behind this project is to look at the design of the Adirondack lean-to and see what about it could be simplified to make plans for an easier to build and construct lean-to.
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Major: Natural Resources Conservation and Management, Sustainable Communities & Working Landscapes
File Attachments: Alumni Campground Lean-to Design Analysis.docx
Assessment of Barriers and Solutions to Obtaining Local Food on Paul Smith's College Campus
Mon, 05/11/2020 - 01:46
Abstract: Throughout the course of the last century, food systems have profoundly shifted from a primarily locally focused diet, to a virtually infinite global array of options. The many negative impacts of this momentous shift are now becoming more evident overtime. With light being recently shined upon these adverse effects, a substantial shift back to more local food options has begun. However, with all this newfound attention placed on localizing food systems, the meaning of local food has adapted an endless number of meanings. Paul Smith’s College agricultural instructor, Sara Dougherty echoed this feeling by saying, “‘Local food’ has been defined in a variety of ways, and we've seen this definition change and morph over time” (Dougherty). This evolving conversation around the benefits local food can have on communities has caused many entities to reassess their own food systems. More specifically, institutions of learning have increasingly rallied behind this movement. “Bringing healthy, locally produced food into institutions has been proposed as an effective strategy to address social, economic, and environmental issues” (“CAMPUS DINING”). Though the specifics of each sustainable food system are unique, they often share similar goals and values. Many of these values happen to also be innately engrained in the principles of which Paul Smith’s College was founded on.
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Major: Sustainable Communities & Working Landscapes
File Attachments: Capstone Paper SUS 496.docx