Digital Commons Network^™

Big Business, Small Plastic, Hannah Johnson

Senior Honors Projects

No abstract provided.

Understanding The Public Perception Of Available Scientific Resources In Coastal Southern Maine, James Gallagher

Senior Honors Projects

I have focused my education as an undergrad towards the effective communication of scientific fact to non-scientific groups. This area of study has recently been dubbed Science Communication and it encompasses the effective articulation, communication, and education of scientific topics to people who haven’t dedicated their lives to scientific study. A major component of effective Scientific Communication is understanding your audience and what kind of communication strategies are best for a chosen demographic.

I grew up in Ocean Park Maine, a small town on the coast of Southern Maine which drove my interest in Marine Science. With my experience in …

Principles Of Onsite Wastewater Treatment, Michael Cerbo

Library Impact Statements

No abstract provided.

Year Long Water Quality Analysis Of White Horn Brook, Kevin Dyer

Senior Honors Projects

KEVIN DYER (Marine Biology)

Year-long Analysis of the Water Quality of White Horn Brook

Sponsor: Thomas Boving (Geological Sciences)

Water is the foundation for all life on earth and is the most vital resource on this planet. Despite this, oceans and waterways all over the world are being polluted and exploited in ways detrimental to their fundamental hydrologic functions. For instance, excess nitrate levels can lead to eutrophication which gives rise to harmful algae blooms. Low pH can cause the breakdown of CaCO3 exoskeletons of organisms, such mollusks. High temperature variations are major stressors to living things and can cause …

Book Review: Teaching Climate Change To Adolescents: Reading, Writing, And Making A Difference, Antonio Lopez

Journal of Media Literacy Education

Teaching Climate Change to Adolescents: Reading, Writing, and Making a Difference, is a book for English language arts and media literacy teachers that provides abundant resources for educators wanting to incorporate climate change instruction into their classrooms. This review explores the usefulness of the book and discusses more broadly the barriers and opportunities for incorporating environmental issues into media literacy education.

Global Worming: A Quantitative Study About Greenhouse Gas Flux In Surface Soils Facilitated By The Anecic Earthworm, Lumbricus Terrestris, Under Rising Global Temperature, Rachel Briden Frei, Jose A. Amador

Senior Honors Projects

Climate change is the long-term alteration in the Earth’s average weather conditions believed to be driven by greenhouse gases (GHG): carbon dioxide (CO₂), methane (CH₄) and nitrous oxide (N₂O). These alterations are expected to cause more extreme weather events, gradually warmer global temperatures and greater amounts of precipitation. Roughly 20% of the Earth’s CO₂, one-third of CH₄ and two-thirds of N₂O emissions, originate from soils, and earthworms are known to accelerate GHG. As climate change proceeds, there is expected to be an increase in global temperature of 2-6ºC. Temperature …

Effects Of Environmental Factors On The Abundance Of Blacklegged Ticks, Jasmine L. Miller, Roger A. Lebrun, Howard S. Ginsberg

Senior Honors Projects

The nymphal stage of the blacklegged tick, Ixodes scapularis, is the major vector of Lyme disease, the most common vector-borne disease in North America. Tick abundance has generally been estimated using either flag/drag samples or samples from hosts. However, the biases of these sampling methods have not been adequately studied. We compared samples using both methods from sites in Massachusetts and Wisconsin. Tick abundance was compared with variables related to weather (temperature, relative humidity, and tick adverse moisture events), vegetation (canopy cover, tree density, shrub density, ground vegetation, and leaf litter cover), and host abundance (mice, small mammals, medium …

The Effects Of Silicon Applications On Wear And Drought Stress Of Cool Season Turfgrass, Mike J. Badzmierowski, W. Michael Sullivan

Senior Honors Projects

The ability of turfgrass to maintain quality and functionality during use and drought stress are fundamental to almost all turfgrass environments. A possible mechanism to increase wear and drought tolerance is through the use of supplemental silicon (Si) application. Until recently, Si has received little attention for its role in crop physiology or performance.

While it is recoverable within the plant it is not recognized as an “essential” plant growth component. Si is the second most abundant element in the Earth’s crust; however the majority of soil-Si is bio-geochemically inert. Plants absorb Si exclusively as monosillicic acid, H₂SiO …

Macroinvertebrate Assemblages And Dynamic Soil Properties: Influence Of Dredging, Bianca N. Ross

Senior Honors Projects

Bianca Peixoto

Senior Honors Project

Macroinvertebrate Assemblages and Dynamic Soil Properties: Influence of Dredging: Abstract

The habitat characterization of subaqueous soils is important for inventorying natural resources and monitoring changes in ecosystem processes. This project aimed to characterize benthic communities within coastal ponds of southern Rhode Island, and develop an understanding of how these communities change due to habitat alterations. I explored the distribution of benthic biology among a range of estuarine subaqueous soils and the effect of anthropogenic disturbance (dredging) on these distributions. The term “benthic” refers to the collection of organisms living in the substrate at the interface …

Three Essays On The Incentive Structure Of Energy Conservation Programs, Edson Ogochukwu Okwelum

Open Access Dissertations

This dissertation is comprised of three related essays examining the potential effectiveness of government energy efficiency programs from both the producer and consumer perspectives. The first chapter is based on a paper I coauthored with Corey Lang. In this manuscript, I address the question of whether strategic behavior by consumers could result in the erosion of energy savings in a demand response program. Understanding how the strategic behavior of consumers affects the net benefits from a demand response program has policy implications because of the increasing importance that demand response has come to play in utility load and reliability management …

Hybridization Of Common Reed In North America? The Answer Is Blowing In The Wind, Laura A. Meyerson, C. Lambertini, M. K. Mccormick, D. F. Whigham

Natural Resources Science Faculty Publications

Background and aims: We review evidence for hybridization of Phragmites australis in North America and the implications for the persistence of native P. australis ssp. americanus populations in North America. We also highlight the need for an updated classification system, which takes P. australis intraspecific variation and hybridization into account.

Methodology: We reviewed available published, in press, and in preparation literature to assess the likelihood of hybridization and interbreeding in genotypes of Phragmites australis present in North America.

Principal results: Experimental results demonstrate that hybridization among introduced and native haplotypes is possible within the genus Phragmites …

The “Green Eating” Project: A Pilot Intervention To Promote Sustainable And Healthy Eating In College Students, Kelleigh E. Eastman

Senior Honors Projects

The “Green Eating” Project: A Pilot Intervention to Promote Sustainable and Healthy Eating in College Students

Kelleigh Eastman

Sponsor: Geoffrey Greene, Nutrition and Dietetics

A topic of interest that is growing in the general population is the idea of being sustainable, or “green”, and there is a rising awareness in sustainable practices involving food and the environment. Some of the “green” eating behaviors identified through my research included eating a plant-based (i.e. vegetarian or semi-vegetarian) diet, eating locally grown foods, eating organically grown foods, and eating foods that are labeled fair-trade. Frequently, these “green” eating behaviors are healthful eating behaviors …

Roger Williams Park Edible Forest Garden, Mark S. Scialla

Senior Honors Projects

An edible forest garden is a low-maintenance system that uses edible native and regionally-adapted plants arranged in beneficial relationships to meet human, wildlife and ecosystem needs. The forest garden in Roger Williams Park will transform underutilized urban land into a highly productive parcel producing market-viable fruits, nuts, vegetables, medicine and fiber. Forest gardens mimic natural forest systems in architecture and complexity. The design follows ecological principles to create a system that promotes biodiversity and enhances the surrounding ecosystem. This project also demonstrates the potential to grow food and create land-based livelihoods in the city.

Located on the edge of a …

Mapping Shallow Coastal Ecosystems: A Case Study Of A Rhode Island Lagoon, Mark Stolt, Michael Bradley, Jim Turenne, Maggie Payne, Eric Scherer, Giancarlo Cicchetti, Emily Shumchenia, Marisa Guarinello, John W. King, Jon Boothroyd, Bryan Oakley, Carol Thornber, Pete August

Natural Resources Science Faculty Publications

In order to effectively study, manage, conserve, and sustain shallow-subtidal ecosystems, a spatial inventory of the basic resources and habitats is essential. Because of the complexities of shallow-subtidal substrates, benthic communities, geology, geomorphology, and water column attributes, few standard protocols are fully articulated and tested that describe the mapping and inventory processes and accompanying interpretations. In this paper, we describe a systematic approach to map Rhode Island’s shallow-subtidal coastal lagoon ecosystems, by using, integrating, and reconciling multiple data sets to identify the geology, soils, biological communities, and environments that, collectively, define each shallow-subtidal habitat. We constructed maps for these lagoons …

An Analysis Of A Management Case: Green Hill Beach Development Of The Rhode Island Coastal Zone, John R. Braddon

Theses and Major Papers

One of the most valuable and misused assets possessed by the United States is the rich and highly varied coastal zone. The genesis of much of our material wealth and the basis for success of the early colonies has been our national fascination with the sea. As our industry and population have expanded, the coastal zone has been neglected seriously to the detriment of both current and future generations of Americans. Abuse of the coastal zone stems from employing it as a dumping ground, using the rivers flowing into it for effluent disposal and haphazard, poorly planned development. Since the …

Hong Kong And The Future Of Green Energy, Kelly Deangelis

Senior Honors Projects

Hong Kong and the Future of Green Energy

Kelly DeAngelis

Faculty Sponsor: Wayne He, Chinese

Hong Kong, with a large, dense population that uses a vast amount of energy, has become China’s epicenter of trade and economic development. Currently, Hong Kong relies on nuclear power and fossil fuels for most of its energy needs. The growing concern of global climate change and the depletion of traditional fuel reserves inspired me to investigate the green technologies that have the potential to replace or supplement current energy sources.

The purpose of my project is to provide an informative and interesting assessment of …

An Environmental And Economic Analysis Of The Printing Practices Of Periodicals And Publications By The University Of Rhode Island And Similar Universities Nationwide, Matthew B. Cotton

Senior Honors Projects

An Environmental and Economic Analysis of the Printing Practices of Periodicals and Publications by the University of Rhode Island and Similar Universities Nationwide

Matthew Cotton

Faculty Sponsor: Thomas Husband, Natural Resources Science

Being environmentally-friendly, or “Going Green”, is a relatively new way of thinking that provides both immediate and long term benefits for the environment and the planet while also creating new and exciting business and marketing opportunities. To tap into this movement requires a great deal of commitment, acceptance to change, and selflessness. It means altering one’s perception of the world and their place in it, along with the …

Transitional Curricula In Leading Research And Land Grant Universities, James T. Crowley

Senior Honors Projects

In the years to come changes in the earth’s climate, human demographics and resource availability will necessitate revolutions in what we eat, where we live, how we travel, and how we produce the energy needed to power our society. While these transitions may be inevitable, we have some measure of control over when and how we adapt. Such efforts will require long-term thinking of a type seldom provided by those focused on the next election or quarterly report. Much of the responsibility to inform and promote action on these issues will fall on academia.

The main objective of this project …

Investigating The Potential For Nitrate-N Removal In Rhode Island Transient Headwater Streams, Molly Welsh, Kelly Addy, Art Gold, Suzanne Cox

Discovery@URI

Excess nitrogen (N) can have detrimental effects on the environment, particularly in coastal waters where inputs from septic systems and agricultural runoff can lead to algal blooms and hypoxic zones. However, transient headwater streams, which comprise a significant portion of streams in watersheds, may have the potential to remove N given their low flow rates, high surface to volume ratios, long retention times, and hydric soils. We investigated the physical characteristics and N removal capacity of transient headwater streams. Four bromide (Br) and nitrate-N slug tests were conducted in four streams in southern RI. Streams were sampled repeatedly as the …

The Effect Of Risk, Time Preference, And Poverty On The Impacts Of Forest Tenure Reform In China, Karen Anne Sullivan

Open Access Dissertations

Forest degradation has steadily increased throughout much of the world. The cause of this continued degradation is complex and multifaceted but there is a growing realization that a key cause, especially in developing countries, is insecure rights to ownership and use of forest resources. This realization coupled with a call for pro-poor forestry policy has stimulated the recent trend in forest policy toward strengthening property rights for forest resources by transferring property rights from the state to communities and individuals, giving them defined rights to manage and extract forest resources. However, a big puzzle remains unsolved—such reforms on property rights …

Modeling Habitat Associations For The Common Loon (Gavia Immer) At Multiple Scales In Northeastern North America, Anne Kuhn, Jane Copeland, John Cooley, Harry Vogel, Kate Taylor, Diane Nacci, Peter V. August

Natural Resources Science Faculty Publications

Common Loon (Gavia immer) is considered an emblematic and ecologically important example of aquatic-dependent wildlife in North America. The northern breeding range of Common Loon has contracted over the last century as a result of habitat degradation from human disturbance and lakeshore development. We focused on the state of New Hampshire, USA, where a long-term monitoring program conducted by the Loon Preservation Committee has been collecting biological data on Common Loon since 1976. The Common Loon population in New Hampshire is distributed throughout the state across a wide range of lake-specific habitats, water quality conditions, and levels of …

Improvement Of Hydraulic And Water Quality Renovation Functions By Intermittent Aeration Of Soil Treatment Areas In Onsite Wastewater Treatment Systems, José A. Amador, David A. Potts, George W. Loomis, David V. Kalen, Erika L. Patenaude, Josef H. Görres

Natural Resources Science Faculty Publications

We tested intermittent aeration of the soil treatment area (STA) of onsite wastewater treatment systems (OWTS) for its ability to restore and maintain STA hydraulic flow and improve the water quality functions of conventional OWTS. Evaluation was conducted on hydraulically-failed conventional OWTS at three state-owned medical group homes in Washington County, RI, USA. Testing was conducted in two phases, with Phase I (before intermittent soil aeration (ISA)) comprising the first 6 months of the study, and Phase II (during ISA) the remaining 7 months. Intermittent soil aeration restored STA hydraulic function in all three systems despite a marked reduction in …

Quikscat Analysis Of Hurricane Force Extratropical Cyclones In The Pacific Ocean, Peter Jzyk

Senior Honors Projects

Since June 1999, NASA’s Quick Scatterometer Spacecraft (QuikSCAT) has been providing forecasters at the Ocean Prediction Center (OPC) with Near-Real-Time (N.R.T.) surface wind speed and direction data over the world’s oceans. QuikSCAT has allowed forecasters to better predict potential hazards such as storm surges and issue warnings when necessary. Over the past decade, QuikSCAT has received a number of upgrades which improved the forecasters’ abilities to predict the weather more accurately and issue warnings, accordingly. Improvements included the availability of the QuikSCAT data within the forecasters’ workstations starting in October 2001, the introduction of higher resolution satellite data in May …

A South County Almanac: Recollections And Observations Of The Outdoors In Southern Rhode Island, Nevan Richard

Senior Honors Projects

Since its publication in 1949, “A Sand County Almanac: With Sketches Here and There” has served as the benchmark for writing about the environment and nature. “Sand County” was written by famed environmentalist Aldo Leopold, who for most of his lifetime worked towards the conservation of wildlife and natural resources. In “Sand County,” Aldo Leopold recounts his experiences and observations in various essays and journal entries from his many years of living in Wisconsin, as well his travels across the North American continent. With its publication after Mr. Leopold’s death, it changed the face of the American conservation movement, later …

A South County Almanac, Nevan Richard

Senior Honors Projects

Since its publication in 1949, “A Sand County Almanac: With Sketches Here and There” has served as the benchmark for writing about the environment and nature. “Sand County” was written by famed environmentalist Aldo Leopold, who for most of his lifetime worked towards the conservation of wildlife, forests, and other natural resources. In “Sand County,” Aldo Leopold recounts his experiences and observations in various essays and journal entries from his many years of living in Wisconsin, as well his travels across the North American continent. With its publication following Mr. Leopold’s death, it changed the face of conservation, later inspiring …

Facilitating Behavior Change Of Coastal Communities In Regards To Climatic Hazards, Marisa Nixon

Senior Honors Projects

For my Senior Honors Project I participated in the Climate Change Collaborative, which is a new interdisciplinary research project studying the ways in which coastal communities in Rhode Island can better adapt to the environmental, cultural and economic consequences of climate change. As a member of this collaborative, I worked in a vertically integrated team of faculty (psychology researchers, climate scientists and communications science practitioners and researchers) as well as undergraduate and graduate students, to begin an endeavor through which behavior change will be assessed in regards to climate change. For the purposes of this study, we specifically focus on …

Spatial And Temporal Variation In Otolith Chemistry For Tautog (Tautoga Onitis) In Narragansett Bay And Rhode Island Coastal Ponds, Ivan Mateo, Edward G. Durbin, David A. Bengtson, Richard Kingsley, Peter K. Swart, Daisy Durant

Fisheries, Animal and Veterinary Sciences Faculty Publications

The elemental composition of otoliths may provide valuable information for establishing connectivity between fish nursery grounds and adult fish populations. Concentrations of Rb, Mg, Ca, Mn, Sr, Na, K, Sr, Pb, and Ba were determined by using solution-based inductively coupled plasma mass spectrometry in otoliths of young-of-the year tautog (Tautoga onitis) captured in nursery areas along the Rhode Island coast during two consecutive years. Stable oxygen (δ¹⁸O) and carbon (δ¹³C) isotopic ratios in young-of-the year otoliths were also analyzed with isotope ratio mass spectrometry. Chemical signatures differed significantly among the distinct nurseries within Narragansett …

Does Self Management In Fisheries Enhance Profitability? Examination Of Korea’S Coastal Fisheries, Hirotsugu Uchida, Emi Uchida, Jung-Sam Lee, Jeong-Gon Ryu, Dae-Young Kim

Environmental and Natural Resource Economics Faculty Publications

Self management of natural resources has started to gain increasing attention as an alternative tool to command-and-control and market-based tools, but the fundamental question remains: is self management economically beneficial such that it should be promoted in the first place? This article uses a unique set of survey data from South Korea and applies an empirical strategy to provide some of the first quantitative evidence that self management is benefiting the fishermen. We find that positive benefits of fishery self management—an increase in fishery revenue and reduction in cost—are perceived by member fishermen, which is a good start considering the …

Phenotopic Plasticity Of Leaf Shape Along A Temperature Gradient In Acer Rubrum, Dana L. Royer, Laura A. Meyerson, Kevin M. Robertson, Jonathan M. Adams

Natural Resources Science Faculty Publications

Both phenotypic plasticity and genetic determination can be important for understanding how plants respond to environmental change. However, little is known about the plastic response of leaf teeth and leaf dissection to temperature. This gap is critical because these leaf traits are commonly used to reconstruct paleoclimate from fossils, and such studies tacitly assume that traits measured from fossils reflect the environment at the time of their deposition, even during periods of rapid climate change. We measured leaf size and shape in Acer rubrum derived from four seed sources with a broad temperature range and grown for two years in …

Mineralization Of Ancient Carbon In The Subsurface Of Riparian Forests, Noel P. Gurwick, Daniel M. Mccorkle, Peter M. Groffman, Arthur J. Gold, D. Q. Kellogg, Peter Seitz-Rundlett

Natural Resources Science Faculty Publications

Microbial activity in saturated, subsurface sediments in riparian forests may be supported by recent photosynthate or ancient (>500 ybp) soil organic carbon (SOC) in buried horizons. Metabolism of ancient SOC may be particularly important in riparian zones, considered denitrification hot spots, because denitrification in the riparian subsurface is often C-limited, because buried horizons intersect deep flow paths, and because low C mineralization rates can support ecosystem-relevant rates of denitrification. Buried horizons are common where alluvial processes (stream migration, overbank flow) have dominated riparian evolution. Our objectives were to determine: (1) the extent to which ancient SOC directly supports subsurface …