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Capstone Projects

A study of how different liquids affect the fermentation process in breads.

Sun, 05/07/2017 - 14:41
Abstract: We all know that different liquids have different densities and will affect any product you are making in a unique way than the other. But how exactly do different liquids affect the fermentation of yeast in a bread dough. In this paper, I will go on to tell you about five different liquids and the type of bread I chose to use for the trials. I will also go into why I chose that type of bread and touch on the history of it.
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Major: Baking and Pastry Arts, Baking Arts and Service Management
Year: 2017
Authors: Kassede Andriola

The Age and Origin of Lake Ejagham, Cameroon: 9,000-Year-Old Sediment Evidence Suggests Possible Bolide Impactor

Tue, 05/02/2017 - 15:18
Abstract: Lake Ejagham is a relatively small lake (54 hectares) located in the south-western region of Cameroon, Africa. Two sediment cores, EJ1 and EJ2, were extruded in 1987 by Dr. Dan Livingstone, preserved, and analyzed in 2016. Sediment and diatom analyses were performed in conjunction with radiocarbon dating, which suggests the maximum age of the lake itself is about 9,000 years old. The age of the lake was confirmed by both the radiocarbon dating of the sediment as well as the dating of wood fragments found at the base of the EJ2 core. The diatom analyses indicate that in recent times high percentages of planktonic diatoms were present, which suggests a relatively wetter hydroclimate than in the past. In the mid-section of EJ1 those planktonic diatom percentages were lower, which indicates drier climates or changes to the lacustrine environment. The consistency in the sediment and climate record suggest that Lake Ejagham has been uninterrupted by environmental catastrophes, which provided suitable conditions for endemic cichlids to evolve via sympatry, particularly Coptodon ejagham. Lake Ejagham has been thought to have formed as a solution basin, when water dissolves and carries away underground minerals forming a depression. Instead, the bedrock beneath the lake contains both soluble and insoluble layers, which prevent this from happening. Here we assert that the EJ1 and EJ2 cores support an alternative origin, possibly from a bolide impactor, however this is not conclusive.
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Major: Environmental Sciences
Year: 2017
Authors: Kenneth B. Alton

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

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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Major: Environmental Sciences
Year: 2017
Authors: Hannah Ashdown

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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Major: Environmental Sciences
Year: 2017
File Attachments: Final_Morrill.docx
Authors: John Morrill

Restoring Allegheny Woodrats (Neotoma magister) to New York’s Appalachian Mountain Range

Thu, 10/19/2017 - 19:31
Abstract: The Allegheny woodrat has recently been extirpated from the northern extent of its range due to a combination of anthropogenic factors, including habitat destruction, fragmentation disconnecting metapopulations, and contributing to increases in raccoon populations. Populations in New Jersey have been stabilized at present, and may be increasing. There is speculation that metapopulations could slowly reestablish themselves in New York form New Jersey’s recovering populations. Regardless, efforts to aid the species’ recolonization would return a formerly prevalent species to New York. Ultimately, 50 genetically diverse, captive-reared Allegheny woodrats will be released throughout the northern extent of the Appalachian mountain range contained within southern New York. Released individuals will be from neighboring states’ captive breeding programs for a more genetically diverse gene pool to help prevent bottleneck effects within metapopulations, and their status will be monitored via radio telemetry tracking. Before reintroducing subjects to the area, tree loggers of the northern Appalachian range should enact policies to conserve mast crop trees and increase overall yield for the area of the range which extends into New York State. Habitat connectivity would need to be restored to aid the woodrats’ recolonization. Raccoons (Procyon lotor) are both predators of Allegheny woodrats and the fatal source of raccoon roundworm (Baylisascaris procyonis) exposure, either situation almost guaranteed to result in woodrat fatality. Increasing raccoon take in the southern half of New York State would better the recolonization specimens’ chances of reestablishment, crucially combined with the distribution of anthelmintic baits to passively deworm remaining raccoons in the area. With these objectives accomplished after five years, Allegheny woodrats will have a greater potential to reestablish former metapopulations within New York.
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Major: Fisheries and Wildlife Science
Year: 2017
Authors: Kara L Meierdiercks

Management Plan of Bobolinks (Dolichonyx oryzivorus) Breeding in The Finger Lakes Region of New York

Fri, 10/13/2017 - 10:50
Abstract: Bobolinks (Dolichonyx oryzivorus) are sexually dimorphic, medium-sized, songbirds that commonly breed across North America. In New York, bobolinks begin nesting around mid-May in open grasslands or hayfields larger than 2 hectares with 3-4 cm of thatch on the ground. Bobolinks are typically philopatric, however land-use practices may alter habitat suitability and negatively affect nesting success. During a ten-year period from 2003 to 2013, bobolink populations have decreased -1.19% across North America (Renfrew 2015). Modernization of hay harvesting practices have increased the occurrence and frequency of disturbance to nesting bobolinks. In New York, the main cause of nest failure is cutting for hay during the nesting season. The goal of this management plan is to increase the population of bobolinks breeding in the Finger Lakes Region of New York. This plan aims to improve bobolink breeding habitat by creating a program that uses policy and philanthropy to balance habitat requirements of bobolink with stakeholder needs through compensation of financial loss due to habitat protection. Coordinating best management practices among landowners and increasing enrollment within the Conservation Reserve Program will reduce edge effects and increase available breeding habitat in the Finger Lakes region. Failure to alter unsuccessful management strategies will permit the current declining population trend to continue. Management is necessary to maximize protection of nesting bobolinks while minimizing financial and legal restrictions encountered by farmers. If this management plan is successful, there will be an increase in the population size of bobolinks returning to the Finger Lakes Region during the breeding season and the once declining population trend will stabilize within the region.
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Major: Fisheries and Wildlife Science
Year: 2017
Authors: Emily Eidman

Management Plan of Harlequin Ducks (Histrionicus histrionicus) on the East Coast of the United States (2017-2027)

Wed, 05/10/2017 - 19:16
Abstract: Harlequin ducks (Histrionicus histrionicus) are sea ducks that winter on the east coast of North America and breed in eastern Canada. They nest along rapid streams that provide suitable nesting habitat along with high abundancy of aquatic invertebrates. Harlequin ducks are a species of special concern in Canada as well as on the east coast of the United States. The species is declining they prefer have thin breeding habitat requirements, a relatively small population size, and are sensitive to disturbances on their wintering and breeding grounds. Such disturbances include transformation of habitats and human disturbances. This plan has goals that mainly focuses on the conservation of Harlequin duck populations and habitat from 2017 to 2027. The first goal of this plan is to create and maintain possible habitat for Harlequins to breed and winter on the east coast of the United States. The objectives to achieve this goal are to identify and map by 2019 all-important Harlequin ducks wintering and potential breeding habitats on the east coast of the United States, through 2027 create, protect, and manage important and possible areas for breeding and wintering habitats, and by 2020 set guidelines to protect Harlequin duck habitat from industrial, recreational, and fisheries activities. The second goal of this plan is to increase the distribution and abundance of Harlequins wintering. The objective for this goal is to increase the egg and hatch year bird survival by 10% for all Harlequin ducks on the east coast of United States as well as the overall population by 30% by 2027. The final goal is to inform and educate recreational users and hunter’s about Harlequin ducks and their habitats, and threats. For this goal the objectives are to mitigate factors that are restricting the species wintering survival on the east coast of the United States by 2022. The second objective to this final goal is by 2019, develop an educational program on the east coast of the United States that will promote the understanding of Harlequin ducks and their wintering requirements.
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Major: Fisheries and Wildlife Science
Year: 2017
File Attachments: Management Plan.docx
Authors: Dakota Urban

Are Zooplankton As Patchy As Phytoplankton?

Mon, 05/01/2017 - 15:44
Abstract: Phytoplankton and zooplankton form the base of most lake food webs and are the primary sources of energy for higher trophic levels. Recent studies have shown that the horizontal distribution of phytoplankton is not even across the surface of lakes. While the vertical distribution of zooplankton has been well studied, little is known about the horizontal distribution of zooplankton in the surface waters of lakes or the spatial interactions among zooplankton and phytoplankton. The aim of this study was to quantify the spatial distribution of phytoplankton and zooplankton and determine if their spatial distributions are related. We sampled zooplankton and phytoplankton during the day and at night in a 24 point grid in Paul Lake, Michigan in the late spring and early summer of 2016. Phytoplankton and zooplankton were not uniformly distributed horizontally. Instead, there were high density patches of both zooplankton and phytoplankton, and in many instances there was positive autocorrelation. Additionally, zooplankton and phytoplankton concentrations were rarely correlated in space indicating that grazing is likely not a driver of zooplankton or phytoplankton spatial heterogeneity. If the goal of a study is to understand and characterize the entire population of either phytoplankton or zooplankton, we suggest taking multiple samples of the pelagic zone.
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Major: Fisheries and Wildlife Science
Year: 2017
File Attachments: The Author has selected not to publish this complete work.
Authors: Jonathan Stetler, Cal Buelo

Long-Eared Owl (Asio otus) Management Plan for Regions 5 and 6 of New York State

Sun, 04/30/2017 - 17:49
Abstract: Long-eared owls (Asio otus) are commonly associated with open grasslands, riparian areas and edge habitat which are used for hunting. Diet consists of 90% voles (Microtus spp.) with the other 10% consisting of other small mammals and rarely, birds. Nesting typically occurs in dense conifer stands where inactive corvid or hawk nests also exist. Inactive nests must be present because like other owl species, long-eared owls do not build their own nests. Outside of the breeding season long-eared owls are highly migratory and have been found to roost communally. Loss of habitat to urban expansion, forest succession and changing farming techniques are considered to be major threats to this species. Across North America, two sub species of long-eared owls exist, however this plan focuses on management of the eastern subspecies (A. o. wilsonianus) in Northern New York. Throughout the Northeast region the long-eared owl is listed as threatened or endangered except in New York where it has no additional protection. However, due to the species large geographic range and large worldwide population estimate it is listed as a species of Least Concern with a declining population on the IUCN Red List. The goals of this plan are to increase the population from 250 to 350 over the next 25 years and to provide information that leads to greater protection of the species in New York. The objectives to achieve these goals include: reductions in nest predation via predator exclusion, increases of nesting and hunting habitat via habitat artificial nest boxes and restoration, and population surveys via banding, radio telemetry and nest success surveys. Based on population modeling adult survival is the key factor to focus on when managing for this species. A 5% increase in adult survivorship should result in a positive population trend, with a 6% increase being more favorable to the overall goals and objectives. Long-eared owls are a lesser known species that deserve our help to ensure their survival and growth for the enjoyment of current and future generations of New York.
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Major: Fisheries and Wildlife Science
Year: 2017
File Attachments: LEOW_Mgmt_Plan.docx
Authors: Matthew Williams