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Capstone Projects

Rooted Education: learning from aquaponics

Sat, 04/30/2016 - 15:02
Abstract: Aquaponics is the integration of soil-less agriculture (hydroponics) within closed-loop aquaculture systems to reduce the toxic accumulation of nutrient waste from aquatic animals. Bacteria naturally establish to purify water by oxidizing the ammonia secreted by fish, which reduces the toxicity of effluent while creating a usable nitrogen source for plants. The conversion of ammonia and nitrite into nitrate by living bacteria communities is called a biological filter, or biofiltration (FAO 2014). Aquaponics would not be possible without biofiltration; the slightest amount of ammonia would be fatally toxic to fish, and plants wouldn't receive the nitrates they need to grow. There are unique opportunities offered by an aquaponics system to learn about ecological and human communities. 1.1. Aquaponics enables users to grow fish and agricultural plants with limited space and resource use (water, soil, and time). This enables an aquaponics user to invest less physical energy and time into expanding sustainable food resources for their household use. 1.2. A small aquaponics system could promote cultural values of self-sufficiency, energy consciousness, and connection to food systems. It could inspire individual efforts to produce food for one’s household, to build healthier and more resilient systems, and a greater appreciation for farming. Therefore, this project aims to actualize a mobile and functional aquaponics system for the educational benefit of the Paul Smith's College community. I will provide the background knowledge needed to maintain an aquaponics system, as well as describe the general concept of aquaponics design.
Access: No
Literary Rights: On
Major: Environmental Sciences, Natural Resources Sustainability Studies
Year: 2016
File Attachments: The Author has selected not to publish this complete work.
Authors: Brian Jason Kohan

An Assessment of Heavy Metal Concentrations in Adirondack Waterfowl

Thu, 04/28/2016 - 22:53
Abstract: We analyzed heavy metal concentrations in waterfowl liver and breast tissue from ducks harvested within the Adirondack Park from October 3 to November 13, 2015. Interspecific, intersex, and feeding behavior variation in heavy metal concentrations were assessed. Waterfowl from two feeding behavior groups (diving and dabbling) were harvested from the watershed within a 50 mile radius of Paul Smith’s, New York. Harvested waterfowl species included mallard (Anas platyrhynchos), American black duck (Anas rubripes), common merganser (Mergus merganser), ring-necked duck (Aythya collaris), bufflehead (Bucephala albeola), and hooded merganser (Lophodytes cucullatus). Legal harvest of these species during regulated New York State duck hunting season allows for permissible use of internal organs for heavy metal determination. Dry weight (mg/kg) of digested liver and breast tissue samples were analyzed using atomic absorption spectroscopy. Due to unknown laboratory error, absolute concentration values were inaccurate, thus, rendering accurate analyses unfeasible. However, relative observable trends were able to be assessed given our data’s high precision. Analyte concentrations were significantly greater in liver tissues and there were significant differences between species. Variation in mercury, lead, bismuth, cadmium, chromium, and zinc concentrations in waterfowl serve as an indicator of the presence, cycling, bioaccumulation, and temporal trends of these metals in northeastern aquatic habitats.
Access: Yes
Literary Rights: Off
Major: Environmental Sciences, Fisheries and Wildlife Science
Year: 2016
File Attachments: Final2.docx
Authors: Brandon Snavely, Lewis Lolya

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).
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2016
Authors: Robert DeSotle

A Comparison Study of Adirondack Region Clearcutting Implementation to that of Paul Smith’s College VIC FERDA Plots

Mon, 05/02/2016 - 10:44
Abstract: The students of Paul Smith’s College have a unique opportunity to explore the parameters of silviculture and forestry practices. Gaining the base knowledge of silvicultural systems while also, properly implementing timber harvesting methods in order to achieve the specific goals and objectives of these systems is tremendously useful for implementation in future years. This study investigated the silvicultural prescriptions of the Forest Ecosystem Research and Demonstration Area (FERDA) plots on Paul Smith’s College lands, in Paul Smiths, New York. Comparing the inventory of the two clearcut sites upon these lands to that of other harvests within the Adirondack Park can supply further knowledge on what can be expected after a specific silvicultural system. Clearcutting has the greatest effect on forest succession by removing the forest cover and allowing light to reach what was once a shaded forest floor. Comparing experimental five acre clearcuts to that of larger commercial clearcuts in the same region can further our understanding of regeneration composition after such timber harvesting operations occur. The variance between the age of the FERDA plot harvests and the age of the harvests completed on Landvest timberlands resulted in varying data. However, if four to eight more years was given for pseudo FERDA plots to mature, it is believed that these harvests would be similar in composition and structure.
Access: No
Literary Rights: On
Major: Forestry
Year: 2016
File Attachments: The Author has selected not to publish this complete work.
Authors: Ryan Krzys, Louis Ferrone III

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.
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2016
Authors: Peter Murphy, Kirklyn Denis

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.
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2016
File Attachments: Capstone.pdf
Authors: Zachary McLellan, Justin Saville

Managing for increased productivity and size of an American kestrel (Falco sparverius) population in northern New York

Mon, 05/07/2012 - 12:58
Abstract: American kestrel (Falco sparverius) populations have recently declined across most of the eastern states. As a result, managers and concerned citizens alike have installed nest boxes across large areas to increase productivity. Mr. Mark Manske has run one of these nest box programs in northern New York, across parts of St. Lawrence and Franklin counties, over the past ten years. Through the combination of his research and other long term management plans, the ideal future plan was developed. The focus of the new plan is to boost efficiency of resources, ease of expansion and sustain a steady or increasing population of kestrels. GIS software was used to analyze each nest boxes’ characteristics in order to develop a model that may predict areas of possible high productivity. Surveys and public outreach are emphasized to create a broader supporting base and possibly acquire future partners for land use, volunteers and advertising. The continued monitoring of the northern New York kestrel population will ensure the presence of this vital species for generations to come.
Access: Yes
Literary Rights: Off
Major: Environmental Sciences, Fisheries and Wildlife Science
Year: 2012
File Attachments: Sauca_Final_Submision.docx
Authors: Tonnie Sauca Jr.

Effects of Snow on GPS Accuracy in Forest Environments

Wed, 04/18/2012 - 15:54
Abstract: Abstract Global Positioning Systems, or GPS, have become an indispensable aspect of modern life, used in everyday situations and is a vital component of many occupations, including forestry and natural resources. With increased GPS accuracy, a forester is able to better locate boundaries and geographic or cultural features beneath forest canopy, leading to increased productivity. In the terms of forestry practices, decreased accuracy can cause errors which could lead to financial or physical loss of resources. The goal of this study is to determine the effects of canopy snow on the accuracy of commercially available, recreation grade GPS units which are suitable for forestry use. The effect of snow on canopy closure was tested through the photographic examination of pre and post snow canopy conditions. GPS accuracy was determined by taking averaged GPS measurements alongside the photo measurements. These were points were compared to previously established coordinates derived from a survey traverse. The results showed that snow did affect the canopy closure of the test forest, yet any correlation between GPS accuracy and increased canopy closure was found to be inconclusive.
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2012
File Attachments: Snyder2012.pdf
Authors: Rand J. Snyder

Gauging Public Perception towards Visitor Impact as well as a Hypothetical Recreation Permit for the Adirondack State Park, New York

Mon, 04/16/2012 - 20:19
Abstract: Human impact upon natural resources can have negative environmental and social impacts. A questionnaire was given out at Marcy Dam to determine whether or not the public perceived negative impacts from visitor use, in particular mountain recreation areas. Participants were also questioned about a hypothetical permit which could introduce a new form of management within impacted areas. Surveys were then analyzed to see how the public had responded to heavily impacted areas and the idea of a recreation permit. Results were displayed in pie chart form to represent public perceptions and views. From the surveyed participants, it was discovered that the majority of people (85%), saw negative impacts in popular recreation areas. The majority of participants (64%), also expressed they would not be willing to accept a recreation permit for use in certain areas.
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2012
File Attachments: Capstone_Final Draft.docx
Authors: Kyle Leech

Comparison of Skid Trail Soil and Adjacent Undisturbed Forest Soil Physical Properties Over a Chronosequence in Vermont

Mon, 04/16/2012 - 19:04
Abstract: The effects of harvesting on forest soil physical properties are visually noticeable on soils where equipment has operated. The effects of equipment passes on forest soils of the Northeastern United States are not well documented. Results from such investigations are less telling when the resilience of forest soils over time is not measured. In an attempt to provide insight, single equipment pass skid trails at two harvest sites (1991 and 2010) meeting similar criteria were sampled. Bulk density (BD), macroporosity, microporosity, total porosity, and strength of skid trial soils and adjacent undisturbed forest soils were measured at each site. The results showed a P-value of 0.019 between soil bulk density, time since harvest, and disturbance type. The 1991 site has resilient soil, as skid trial soil properties were not significantly different than the undisturbed soil properties 20 years later. At the 2010 site, skid trail soil properties were significantly different than undisturbed soil. The goal is that this study be used in conjunction with previous research to aid Northeastern forest managers in determining how to remove wood over successive treatments. The data suggests that soil physical properties are not permanently altered after single equipment passes at the two study sites.
Access: Yes
Literary Rights: Off
Major: Forestry
Year: 2012
File Attachments: Project 2nd Draft.docx
Authors: Steve Handfield, Daniel Kelting