Digital Commons Network^™

Potential Effects Of Elevated Co2 On Pitcher Plant Nectar Composition, Prey Capture, And Inquiline Communities, Deirdre Courtney

Honors Theses

Human activities such as fossil fuel burning and deforestation have contributed significantly to the increasing levels of CO₂ in the atmosphere since the industrial revolution. Under the IPCC A1FI emission scenario, we are expected to reach levels as high as 1000 ppm by the end of the century. On average, C₃ plants experience a 27% increase in carbon to nitrogen (C:N) ratio under elevated CO₂. As a result, C₃ plants typically exhibit an increase in carbon-based secondary compounds. Carnivorous plants are a rare type of C₃ plant that has adapted to survive in low …

Developing Gifts In-Kind Support For Nonprofit Organizations: Case Study On Pretty Lake Vacation Camp, Erin Denay

Honors Theses

Nonprofit organizations often rely on in-kind donations from individuals, businesses, and organizations to help support their mission. In-kind support includes donated goods or services rather than a monetary donation. This honor’s thesis is comprised of research and applied best practices in a case study on developing gift-in-kind support for local Kalamazoo nonprofit organization, Pretty Lake Vacation Camp. In coordination with Pretty Lake Development Staff, Farm Staff, and four local businesses and organizations, $305 worth of in-kind donations were donated in time for the 2014 summer camp season for use on the camp farm. Various fundraising strategies and techniques were used …

The Effect Of Azo Textile Dyes On Gross Primary Production And Community Respiration In An Artificial Environment, Theresa L. Petzoldt

Honors Theses

Azo dyes are the largest category of textile dyes in production today, with over 100,000 tons of dye produced yearly in the United States. Ten to fifty percent of this dye is not fixed to the fabric during the textile production process, and is therefore discarded as effluent. Because dye waste is difficult to process in wastewater treatment facilities, it is important to understand how this waste affects aquatic systems using a whole ecosystem approach. This study used an artificial stream to model the effects of four azo dyes on benthic biofilm production and respiration. Dyes were found to have …

The Role Of Underutilized Fish In New England's Seafood System, Taylor Witkin

Honors Theses

The global fisheries crisis has led to an increasing recognition for the need to relieve pressure on overfished, popular food fish stocks. Opportunities exist to shift consumer demand toward more sustainable choices, including fish that may be locally abundant. Attempts have been made to market underused fish (sometimes termed “trash fish”) that represent more sustainable alternatives; however, it is unclear whether consumers will choose to purchase these more sustainable options, particularly if underused fish are also unfamiliar. Chapter 1 reviews existing research and current issues surrounding sustainable seafood and the recent shift toward local, abundant, undervalued species in New England’s …

Optimization Of A Chemical Genetic Screen To Identify Druggable Targets In U138 Cells Treated With Laromustine, Kathryn Coe

Honors Theses

Laromustine is an experimental sulfonylhydrazine prodrug used in late-stage clinical studies against acute myeloid leukemia (AML) and glioblastoma multiforme (GBM). Despite initial promise for both indications, clinical trials for GBM have not been as successful as those for AML. To investigate methods for improving the effectiveness of laromustine in GBM and to learn more about the mechanism of action of laromustine, a chemical genetic screen will be conducted to identify agents that sensitize GBM cells to the anti-proliferative effects of laromustine. The library, which will include approximately 450 FDA-approved drugs, will be screened using a newly optimized high throughput assay …

The Impact Of Dams On Nitrogen Cycling In The Messalonskee Stream, Rebecca K. Forgrave

Honors Theses

The Messalonskee Stream in central Maine has five hydroelectric dams on 16.6km. Each dam drastically changes the flow regime of the stream, dividing it into segments with different patterns of sediment settling and organic matter retention. I investigated how these disruptions impact nitrogen cycling, specifically nitrification rates above and below each dam. I expected higher nitrification rates above the dams, where levels of organic matter are higher, and lower rates below the dam where scouring removes organic matter and fine sediment from the streambed. I measured sediment nitrification rates with a nitrapyrin-inhibition assay and potential drivers of nitrification including sediment …

The Economic Impact Of Shale Gas Development: A Natural Experiment Along The New York And Pennsylvania Border, Brendan Cosgrove

Honors Theses

In the United States, the rapid increase in shale gas production has recently stimulated local economies. This paper investigates the regional economic impact of shale gas development. The border of New York and Pennsylvania provides a natural experiment for its economic impact because of the moratorium on fracking in NY and the supportive fracking regulations in PA. Using BLS data from 2001-2013, results show that shale gas development has a statistically significant impact at the industry level, but not across the entire economy. The findings contribute new evidence to the economic benefits and the boom-bust cycle of shale gas extraction.

An Evaluation Of Soil Extracellular Enzyme Activity In Response To Burning As A Forest Restoration Technique, William M. Steward

Honors Theses

Burning is a method of forest restoration with the goal of returning natural tree species to ecosystems. Burning has a wide range of effects on an ecosystem, including the alteration of important soil processes and characteristics. One of the key components of soil is the activity of extracellular enzymes, which can be used to provide insight into the nutritional requirements of soil microbes as well as nutrient availability and cycling. Because enzymes are important in the overall functioning of soil and can be used to assess soil health, there is great need to examine the effects of burning on soil …

The Relationships Between Local Food And Food Security In Maine, Erin Love

Honors Theses

There is a food systems paradox in Maine: the State has one of the highest levels of food insecurity in the nation, while simultaneously experiencing a local agriculture boom. Maine has some of the largest percentages of young farmers and women farmers in the country and is home to the second highest number of artisan cheese makers of any state in the country. Amidst this exciting, sometimes quirky, agricultural activity there is a critical need for food systems development in the state, especially in the context of serving vulnerable populations. This thesis explores the ways in which Mainers are working …

Catching Companies Who Refuse To Go Green Red-Handed, Wylee Mcgreevy

Honors Theses

Recycling, planting trees, and bringing your own bags to the grocery store are some of the activities people regularly think about when it comes to sustainability. In the grand scheme of life, how much difference can one person make? What if there were stricter standards for corporations which accounted for their emission of pollutants? Environmental Accounting is a branch of accounting that is progressively gaining popularity and has the potential to redefine the standards of sustainability for companies. With integration of past proposals for a carbon tax and a cap and trade system, a new proposal could be formed that …

"The Living Building Challenge", Giovanni Roberto

Honors Theses

As we look around our community and the world, it becomes very apparent that we are facing many environmental, social and economic issues. In hope to make strides toward a positive future, the International Living Future Institute has developed many stringent programs, one of them being the Living Building Challenge (The Challenge). The Challenge is working to fix the problems of the built environment and to restore the negative impacts our building, landscapes, structures, etc. are having on the Triple Bottom Line (People, Planet, Profit).

The Challenge’s mission states:

To encourage the creation of Living Buildings, Landscapes and Neighborhoods in …

Metallic Mineral Mining In Maine, Kaitlyn Bernard

Honors Theses

In 2012 the Maine State Legislature passed a bill directing the Maine Department of Environmental Protection (DEP) to rewrite the regulations governing metallic mineral mining in Maine. The bill was introduced after pressure from Maine’s largest private land owner and timber company, J.D. Irving, Limited. The company has a lucrative mineral deposit on one of their landholdings in northern Maine and is interested in pursuing a mining development project. The bill aimed to streamline the regulatory framework around mining operations and make the permitting process more conducive to mineral development throughout the state. The 2012 Maine Metallic Mineral Mining Act …

Conservation Easement Policies Across New England, Virginia A. Keesler

Honors Theses

This thesis examines conservation easement policies across the New England states. Conservation easements are legal agreements through which landowners donate or sell some or all of their properties' development rights to conservation entities, typically government entities or land trusts. I specifically ask: How do conservation easement policies compare across the New England states? How can conservation easement policies be reformed to enhance the use of easements as a conservation tool? Although easements allow conservation entities to conserve more land for less money, the ecological and social implications of the increased use of easements have been debated.

I evaluate data availability, …

An Investigation Of The Green Grove Initiative, Haley Brooke Kesterson

Honors Theses

Game days, particularly football game days, at division one universities generate a great deal of waste. At the University of Mississippi, the amount of waste generated on home football game Saturdays has been increasing. Increasing recycling by spectators may decrease the amount of waste generated and reduce the negative environmental impact of game days. The purpose of this case study was to explore the development and evaluation of interventions that may be effective for increasing recycling behaviors. Various interventions were implemented at each game of the 2012 season. Recyclables were collected and waste was measured following each game. Games with …

Quantifying Urbanization In Grand Traverse County, Mi, Benjamin T. Roush

Honors Theses

Grand Traverse County, MI has witnessed population growth in the past thirty years, largely because of its popularity as a tourist destination and “wilderness” area in Michigan and around the Great Lakes basin in general. Accordingly, there has been human development and urbanization in the county, particularly around its major community, Traverse City. This paper seeks to quantify that urbanization. This will be done by classification of Landsat 5 – TM imagery collected in 1984 and 2010, utilizing the Gaussian maximum likelihood supervised classification method. After this process, changes in proportions of the various land use types in the county …

Witness For The Prosecution: Erasure Poetics, Samantha M. Schaefer

Honors Theses

My Honors Senior Thesis is centered around the art of Erasure poetics. My definition of Erasure is most concisely stated as: a process of simultaneous poetic addition and subtraction to preexisting text, which results in a product whose creation process ultimately echoes the same revision process that human beings undergo; a process by which a new and beautiful truth is both created and uncovered in a paradoxical manner. I initially endeavored to complete a simple erasure of a collection of short stories by Agatha Christie called Witnessfor the Prosecution; but was soon so inspired that I ended up creating four …

Evaluating Bucknell's Waste Stream, Hallie S. Kennan

Honors Theses

This thesis examines three questions regarding the content of Bucknell University‟s waste stream and the contributors to campus recycling and solid waste disposal. The first asks, “What does Bucknell‟s waste stream consist of?” To answer this question, I designed a campus-wide waste audit procedure that sampled one dumpster from each of the eleven „activity‟ types on campus in order to better understand Bucknell‟s waste composition. The audit was implemented during the Fall semester of the 2011-2012 school year. The waste from each dumpster was sorted into several recyclable and non-recyclable categories and then weighed individually. Results showed the Bison and …

From Pond To Pump: Microalgae As A Feedstock For Biodiesel, Anna H. Leavitt

Honors Theses

The global reliance on fossil fuels is an unsustainable practice that has led to the depletion of finite resources and the accumulation of greenhouse gases in the atmosphere, leading to global climate change (Demirbas 2010). Transportation accounts for about a third of carbon dioxide (CO2) emissions in the United States. Demand for oil continues to increase and resources are becoming more uncertain. Increased production of renewable fuels such as biofuels can help ease the dependence on fossil fuels. Although interest and production in biofuels has been increasing in the past decade, current feedstocks do not meet efficiency needs and some …

Cameras, Satellites, And Surveys: A Multi-Platform Approach To Monitoring Lake Conservation Behavior, Daniel D. Homeier

Honors Theses

Shoreline buffers are essential to maintaining lake water quality and there are numerous methods for their assessment. There is uncertainty in the benefits and drawbacks of different shoreline buffer assessment methods. In this study I explore three methods of remotely assessing shoreline buffers in the Belgrade Lakes Region of Maine: household surveys, geotagged shoreline photos, and satellite imagery. By comparing these three methods I will evaluate their accuracy and applicable scale when used to assess the presence and quality of shoreline buffers.

I used both parametric and non-parametric analysis to (1) evaluate the relative accuracy of 154 household surveys in …

Buffernomics: Assessing Willingness To Pay For Lake Conservation On North Pond And East Pond, Sophie D. Sarkar

Honors Theses

Hedonic property valuations in Maine have estimated that a one-meter decrease in water clarity can reduce shoreline property values by 4 to 16%. To avoid a loss on their lakefront investment, shoreline property owners have a particularly large incentive to conserve lake water quality. Nevertheless, while some shoreline residents voluntarily install vegetated buffers and actively participate in lake stewardship, others continue to ignore shoreline zoning laws at the expense of lake health. In this thesis, I examine the dichotomy of active and indifferent shoreline residents by analyzing the motivations that distinguish residents who are willing to pay (WTP) for and …

Zooplankton Of The Belgrade Lakes: The Influence Of Top-Down And Bottom-Up Forces In Family Abundance, Kimberly M. Bittler

Honors Theses

The purpose of this study was to assess the abundance and family diversity of zooplankton communities in the Belgrade Lakes, and to identify the broad scale and local variables that structure zooplankton communities in this region. The local effects of shoreline development and the presence of macrophyte patches were compared to larger scale variables, such as watershed wide residential development. Zooplankton are an intermediate link in the freshwater food web, and communities respond both to predation pressures as well as nutrient inputs. Shoreline development was expected to influence zooplankton densities by the increased nutrient inputs via erosion off developed sites …

The One That Carries You Away: Essays, Blair S. Braverman

Honors Theses

What is environmental writing? Phil Condon, author and professor at the University of Montana's Environmental Writing Institute, defines it as any piece of writing in which an important factor is nonhuman—be it animal, place, weather, et cetera. At the same time, he acknowledges that the primary limitation of this definition is its lack of limitations; because humans are constantly interacting with—and affected by—the nonhuman, virtually any piece of writing could be considered environmental. The Association for the Study of Literature and the Environment (ASLE), the nation's predominant organization for the academic study of environmental writing, defines itself through its focus …

Biomass Energy At Colby College, Rachel E. Baron

Honors Theses

In light of growing concern regarding the effects of global climate change, Colby College signed the American College and University Presidents’ Climate Commitment (ACUPCC) in 2008. Through this pledge, Colby has committed to reducing carbon emissions in its Climate Action Plan (IPCC 2007; CCAP 2010). The College seeks to be carbon neutral by 2015 (CCAP 2010). This will be accomplished through a variety of mechanisms, one of which includes the construction of a biomass facility to replace most of the oil currently used for heating (CCAP 2010).

Anthropogenic global climate change has been documented by many scientists, but was widely …

Microbial Community Analysis Of Lake Chillisquaque, A Small Water System In Central Pennsylvania, Allison Mayhew

Honors Theses

Cyanobacteria are photosynthetic organisms that require the absorption of light for the completion of photosynthesis. Cyanobacteria can use a variety of wavelengths of light within thevisible light spectrum in order to harvest energy for this process. Many species of cyanobacteria have light-harvesting proteins that specialize in the absorption of a small range of wavelengths oflight along the visual light spectrum; others can undergo complementary chromatic adaptation and alter these light-harvesting proteins in order to absorb the wavelengths of light that are mostavailable in a given environment. This variation in light-harvesting phenotype across cyanobacteria leads to the utilization of environmental niches …

State Leadership For Safer Chemicals Policy Reform: Lessons From California, Maine, Minnesota And Washington, Michelle A. Russell

Honors Theses

Chemicals regulation under the U.S. Toxic Substances Control Act of 1976 fails to protect human health. In the absence of federal protection, safer chemicals legislation and implementation is moving forward in four states: Maine, Minnesota, California and Washington. Working in response to a loud public cry of concern and persistent grassroots organizing, these four states have enacted laws that regulate chemicals in consumer products. Maine, Minnesota and Washington chose to focus on regulating the chemicals used in children’s products, taking into consideration greater vulnerability in early development and the compelling public priority to protect children’s health. The most important factors …

My 21st Century Expedition: Following The Route Of Schoolcraft 1820, 1832 To The Source Of The Mississippi River, Lorah Patterson

Honors Theses

The journal of Lorah Patterson during her expedition from Schoolcraft, Michigan, to the source of the Mississippi River. Supplemental file contains complete Herbarium. The thesis includes only a few examples.

The Impacts Of Land Use And Development Patterns On Water Quality Of The Belgrade Lakes, Ian M. Mccullough

Honors Theses

The purpose of this study was to assess the impacts of patterns of land use and development on water quality in the Belgrade Lakes on a regional scale. Regional research and cooperation could identify key areas in the watershed where development or changing land use could have the greatest negative influences on lake water quality. Past work has centered on water chemistry, nutrient dynamics, development and economic factors but there has been no comprehensive analysis of land use and development history for the entire Belgrade Lakes Region. The Belgrade Lakes are a chain of 7 lakes in central Maine connected …

A Morphological Analysis Of A "Confounding" Population Of Castanea In Northwest Georgia, Jamie Dinkins

Honors Theses

Two species of Castanea Mill. (Fagacae) are native to North America: the tall, forest-type Castanea dentata (Marsh.) Borkh. and the smaller, shrubbier Castanea pumila (L.) Miller. There are two varieties of C. pumila: Castanea pumila var. pumila, and Castanea pumila var. ozarkensis (Johnson, 1988). In the early 1900s, chestnut blight caused by Cryphonectria parasitica (Murr.) Barr. reduced C. dentata to stumps and sprouts and severely diminished the abundance of both subspecies of C. pumila. Because Castanea species can apparently interbreed, restoration efforts have been complicated by possible hybridization between the two now shrubby species. One of these putative hybrid and …

Factors Influencing Conservation Success Or Failure In Tiger Range States, Megan C. Saunders

Honors Theses

Tigers are currently found in 13 countries. Three of eight recognized subspecies are extinct and the other subspecies are considered endangered throughout their range. Major threats to tigers include habitat and prey loss and poaching. Most studies of tiger decline, to date, have explored direct threats. This study uses a range-wide approach to explore possible underlying drivers of tiger decline. I used recent tiger population estimates and identified 6 biological measures and 27 socioeconomic measures to ask why some countries are more successful in conserving tigers than others. Data were analyzed using correlation and regression analyses in SPSS. Higher rates …

Learning The Lay Of Their Land: Data Recording By Maine Land Trusts, Patrick John Roche

Honors Theses

Land trusts have led the recent, rapid expansion in private land conservation in the US. As they have grown, many questions have emerged as to the value of their conservation efforts, especially in the long-term. To address this data gap, studies have evaluated easement restrictions and the characteristics of land trust protected property. I take a novel approach by investigating the data that land trusts record about their protected properties and its impact on their capacity to protect conservation values. I surveyed 55 land trusts operating in Maine about data they record in baseline documentation reports. A majority (82%) had …