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A Total Environment Of Change: Exploring Social-Ecological Shifts In Subsistence Fisheries In Noatak And Selawik, Alaska, Katie J. Moerlein

Fisheries

Arctic ecosystems are undergoing rapid changes as a result of global climate change, with significant implications for the livelihoods of arctic peoples. In this thesis, I use ethnographic research methods to detail prominent environmental changes observed and experienced over the past few decades and to document the impact of these changes on subsistence fishing practices in the Inupiaq communities of Noatak and Selawik in northwestern Alaska. Using in-depth key informant interviews, participant observation, and cultural consensus analysis, I explore local knowledge and perceptions of climate change and other pronounced changes facing the communities of Noatak and Selawik. I find consistent …

Teaching Old Buildings New Tricks: Benefits Of Retrofitting Indianapolis Buildings With Green Roofs, Sarah Elizabeth Strobl

Undergraduate Honors Thesis Collection

Not your basic rooftop garden, green roofs contain growing media and are planted with various types of vegetation. Green roofs can be either intensive, with soil depths above 6 inches and increased size and attractiveness of vegetation, such as trees and shrubs, or extensive, with soil depths between 2-6 inches and low, moss or grass-like plants that require little care (Getter et al. 2009, Indianapolis DPW 2008, Obemdorfer et al. 2007, US DOE 2004).

Although green roofs are initially more expensive than traditional roofing techniques due to the cost of additional materials, the long-term cost savings are high and can …

A Study Of Selection On Microsatellites In The Helianthus Annuus Transcriptome, Sreepriya Pramod

Theses and Dissertations

The ability of populations to continually respond to directional selection even after many generations instead of reaching response plateaus suggests the presence of mechanisms for rapidly generating novel adaptive variation within organismal genomes. The contributions of cis regulation are now being widely studied. This study details the contributions of one such mechanism capable of generating adaptive genetic variation through transcribed microsatellite mutation. Microsatellites are abundant in eukaryotic genomes, exhibit one of the highest known mutation rates; and mutations involve indels that are reversible. These features make them excellent candidates for generating variation in populations. This study explores the functional roles …

Effectiveness Of Marine Protected Areas Across A Latitudinal Gradient, Chelsea Roy

Honors Scholar Theses

Use of marine protected areas (MPA) as a tool for conservation and sustainable use of marine biological diversity is increasing worldwide. However, the geographic extent of MPA designation varies, as does a full understanding of the ecological utility of such designations. Progress towards marine conservation goals needs to be evaluated in order to determine areas lacking effective MPA designation. The goal of this study is to evaluate the representation (in terms of communities and habitats) and performance of marine protected areas in the Northwestern Atlantic and Northeastern Pacific across a latitudinal gradient. Presence or absence of MPAs in specific ecological …

Raccoon Acclimation Towards Traps And Its Effect On Surveillance And Monitoring Of Zoonotic Diseases, Lindsay Rollend

Master's Theses

Raccoons (Procyon lotor) serve as a source of infection with various pathogens for people, most notably, rabies. Raccoons are specifically targeted for the control of rabies in the United States, primarily due to the 100% fatality rate in humans and animals. There is no cure or treatment for rabies and vaccines may be administered to people if it is administered promptly. In order to evaluate how successful trapping of raccoons is by using conventional methods, motion sensing cameras were placed on traps in order to captured raccoon behaviors. Pictures were coded based on these behaviors (around the trap but not …

Crowdsourcing Scientific Work: A Comparative Study Of Technologies, Processes, And Outcomes In Citizen Science, Andrea Wiggins

School of Information Studies - Dissertations

Citizen science projects involve the public with scientists in collaborative research. Information and communication technologies for citizen science can enable massive virtual collaborations based on voluntary contributions by diverse participants. As the popularity of citizen science increases, scientists need a more thorough understanding of how project design and implementation decisions affect scientific outcomes.

Applying a comparative case study methodology, the study investigated project organizers' perspectives and experiences in Mountain Watch, the Great Sunflower Project, and eBird, three observation-based ecological citizen science projects in different scientific domains. Five themes are highlighted in the findings: the influence of project design approaches that …

Host Specificity Of Ecuadorian Bat Flies (Diptera: Streblidae), Eric Stamper

Mahurin Honors College Capstone Experience/Thesis Projects

Diptera: Streblidae are ectoparasites of bat populations found in many locations throughout the world. These ectoparasites are generally known as bat flies. They attach themselves to the wing membranes and bodies of bats to bite and feed on their blood. Using a large sample consisting of over 2,000 bats and 6,000 bat flies, I have conducted a study of the degree of host specificity of these ectoparasites. Host specificity is a measurement of the degree to which a particular parasite is restricted to its host or hosts. Here I find evidence to support more recent findings that bat flies are …

Ecological Literacy: Global Planetary Stewardship Is Everyone’S Responsibility, Eileen Bobeck-Thoresen

Master of Liberal Studies Theses

No longer can nature simply be defined as ‘essences unchanged by man’ as Ralph Waldo Emerson once claimed. Technology, the result of applied science, has produced accomplishments that have made the quality of human life better in terms of health care and transportation. These advancements, however, have come at a great ecological cost as is evident everywhere in nature today. Humans need to acquire Ecological Literacy, the knowledge to lead a sustainable life. This entails meeting current needs without preventing future generations and species from doing the same. Since the days of the Industrial Revolution, the health of our planet …

Do Tree Species In A Bornean Mixed Dipterocarp Forest Display Preferential Uptake Of Different Nitrogen Forms?, Jocelyn Onley

Department of Environmental Studies: Undergraduate Student Theses

Lambir Hills National Park in Malaysian Borneo is composed of dipterocarp tree species which specialize on different soil types. Although the mechanisms contributing to this distribution of tree species are unknown, one hypothesis is that tree species at Lambir differ in their preferences for different nitrogen forms. In this study we investigated (1) whether clay soil and sandy loam soil types at Lambir differ in the availability of ammonium and nitrate and (2) whether tree species specializing on either clay soil or sandy loam soil at Lambir have differing preferences or capacities to take up ammonium, nitrate, or glycine (organic …

Semiparametric Bayesian Modeling Of Density Dependence, Masatoshi Sugeno

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Density dependence is a foundation of population biology. Analysis of population data with parametric models has long provided estimates of the maximum reproductive rate and the form of density dependence. These in turn determine the limit of sustainable harvest and the population's stability, respectively. However, standard parametric analyses of population data generate incorrect inferences of density dependence in noisy and short series. Therefore, there is a clear need for improved statistical methods for inferring density dependence. In this thesis, I developed new semiparametric Bayesian (SB) methods for estimating reproductive rates and for identifying forms of density dependence. Using simulated data, …

Drag Reduction In Wave-Swept Macroalgae: Alternative Strategies And New Predictions, Patrick T. Martone, Laurie Kost, Michael L. Boller

Biology Faculty/Staff Publications

Premise of the study: Intertidal macroalgae must resist extreme hydrodynamic forces imposed by crashing waves. How does frond flexibility mitigate drag, and how does flexibility affect predictions of drag and dislodgement in the field? Methods: We characterized flexible reconfiguration of six seaweed species in a recirculating water flume, documenting both shape change and area reduction as fronds reorient. We then used a high-speed gravity-accelerated water flume to test our ability to predict drag under waves based on extrapolations of drag recorded at slower speeds. We compared dislodgement forces to drag forces predicted from slow- and high-speed data to generate new …

Application Of Microbial Fuel Cells In A Forested Wetland, Jianing Dai

All Theses

ABSTRACT
Electricity can be generated from forest residues, especially the organic matter from litter fall, in freshwater forested wetland environments with a microbial fuel cell (MFC) system. Electricity generation efficiency was examined for cypress, tupelo, and pine litter extracts, using dual-chamber reactors. The maximum power density generated with cypress extracts was on the level of 320 mW/m2, higher than tupelo (230 mW/m2), and pine (210 mW/m2). The efficacy of cypress extracts was also higher than tupelo and
pine, demonstrating that organic matter from cypress litter is a preferred substrate for electricity generation with MFCs. Meanwhile, low aromaticity of the substrate …

Effects Of Temperature On Emergence And Seasonality Of West Nile Virus In California, David M. Hartley, Christopher M. Barker, Arnaud Le Menach, Tianchan Niu, Holly Gaff, William K. Reisen

Biological Sciences Faculty Publications

Temperature has played a critical role in the spatiotemporal dynamics of West Nile virus transmission throughout California from its introduction in 2003 through establishment by 2009. We compared two novel mechanistic measures of transmission risk, the temperature-dependent ratio of virus extrinsic incubation period to the mosquito gonotrophic period (BT), and the fundamental reproductive ratio (R₀) based on a mathematical model, to analyze spatiotemporal patterns of receptivity to viral amplification. Maps of BT and R₀ were created at 20-km scale and compared throughout California to seroconversions in sentinel chicken flocks at half-month intervals. Overall, estimates of BT and …

Stable Isotope Analysis (Delta Nitrogen-15 And Delta Carbon-13) And Bioenergetic Modeling Of Spatial-Temporal Foraging Patterns And Consumption Dynamics In Brown And Rainbow Trout Populations Within Catch-And-Release Areas Of Arkansas Tailwaters, Jon M. Flinders

Graduate Theses and Dissertations

I examined spatial and temporal consumption dynamics using an energy intake model and a bioenergetics model of rainbow trout, Oncorhynchus mykiss, and brown trout, Salmo trutta, within three catch-and-release (C-R) areas in Bull Shoals and Norfork tailwaters to determine whether trout populations were limited by food supply. I also examined the seasonal and ontogenetic shifts in the foraging patterns of brown and rainbow trout within these areas using gut content analysis (GCA) and stable isotope analysis (SIA) of C and N. I examined 605 brown trout and 768 rainbow trout for GCA and SIA at Bull Shoals, Norfork, …

Cardiovascular Disease And Vitamin D Deficiency, Lori Nelson

Theses and Dissertations

Vitamin D deficiency is a common health condition affecting a significant number of individuals throughout the world. For years vitamin D has generated interest in reducing osteoporosis because of its role in bone and calcium metabolism. Recently low concentrations have been linked to the development of several cardiovascular diseases such as hypertension, heart failure, atherosclerosis and peripheral arterial disease. The purpose of this article is to examine evidence regarding vitamin D deficiency and cardiovascular disease and provide advanced practice nurses with recommendations regarding supplementation in those individuals with vitamin D deficiency and risk for development of cardiovascular disease.

School-Related Exposure To Nitrogen Dioxide And Asthma Severity In Children Enrolled In The Study Of Traffic, Air Quality And Respiratory Health (Star), Rashele P. Yarborough

Yale Medicine Thesis Digital Library

Asthma is an inflammatory disease of the airways characterized by shortness of breath, chest tightness, wheezing and cough. It is one of the most common chronic diseases in children in developed countries, and the prevalence of pediatric asthma has been increasing in recent decades. Both indoor and outdoor air pollution have been identified as risk factors for asthma incidence, prevalence and severity. One of the major gaseous air pollutants, nitrogen dioxide (NO2), is generally related to combustion processes and research has been done to assess its role in asthma outcomes. Unfortunately, studies investigating the relationships between NO2, asthma and respiratory …

Niche Theory In New Media: Is Digital Overtaking The Print Magazine Industry?, Zeenath Haniff

UNLV Theses, Dissertations, Professional Papers, and Capstones

New challengers in mass media are poised to annihilate the competition. The trials and tribulations that magazine publishers have conquered over the years is a testament to the industry's undaunted resilience and perseverance against such competition. Presently, the paper-based medium has enjoyed massive success by catering to readers' individual interests in special interest publications called niche magazines. However, the future of print magazines is unclear as recent technological innovations in digital publishing become the latest contender against print media. Analyzing the possible effects of the new digital medium upon the incumbent print magazine may help publishers prepare to face their …

Developing A High Throughput Protocol For Using Soil Molecular Biology As Trace Evidence, Sabreena A. Larson

Department of Biochemistry: Dissertations, Theses, and Student Research

The use of soil as trace evidence has changed significantly with the addition of new techniques. These techniques include using the biochemical molecules from soil microbial communities to make a fingerprint of the specific soil. This research examines the changes to the microbial community profile that take place during storage of a soil sample. To observe such changes both the DNA and fatty acid profiles will be examined.

The DNA profiles were made with capillary electrophoresis-single stranded conformation polymorphism (CE-SSCP). After statistical analysis using Bray-Curtis distances and ANOSIM (analysis of similarity) it was shown that storage of soil does not …

Spider Community Composition And Structure In A Shrub-Steppe Ecosystem: The Effects Of Prey Availability And Shrub Architecture, Lori R. Spears

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Habitat structure is cited as an important factor influencing organisms, but few studies investigate whether habitat structure interacts with other environmental variables to affect community dynamics. The purpose of this study was to determine, using field experiments, the importance of prey availability and shrub architecture on a spider community in northern Utah, USA. We were also interested in determining whether surrounding shrub architectures influence spider and prey responses.

Our results suggest that spider distribution, abundance, and biodiversity are influenced by shrub architecture. Shrub architecture influenced spiders both directly and indirectly via associated changes in prey availability. Spiders were also directly …

A Multi-Phase, Mixed-Method Regional Analysis Of Lake And Reservoir Based Recreational Opportunities In Utah, William S. Spain

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Managing and planning for human use at lakes and reservoirs creates challenges for land and water management agencies in Utah and the country as a whole. In spite of increased attention and research, management problems such as conflicts, accidents, and site impacts continue to occur. These problems have been exasperated by an 800% increase in the number of registered boats statewide over the past 50 years. As such, developing new strategies to address the broad array of management challenges could be beneficial to the recreation management of lakes and reservoirs. This study, conducted in collaboration with Utah State Parks, considers …

Assessing Changes In The Abundance Of The Continental Population Of Scaup Using A Hierarchical Spatio-Temporal Model, Beth E. Ross

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

In ecological studies, the goal is often to describe and gain further insight into ecological processes underlying the data collected during observational studies. Because of the nature of observational data, it can often be difficult to separate the variation in the data from the underlying process or 'state dynamics.' In order to better address this issue, it is becoming increasingly common for researchers to use hierarchical models. Hierarchical spatial, temporal, and spatio-temporal models allow for the simultaneous modeling of both first and second order processes, thus accounting for underlying autocorrelation in the system while still providing insight into overall spatial …

The Influence Of Geology And Other Environmental Factors On Stream Water Chemistry And Benthic Invertebrate Assemblages, John R. Olson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Determining if a stream has been degraded by human activities requires knowing what that stream’s natural water quality and freshwater species composition would likely be without any alteration. However stream natural conditions vary greatly from stream to stream, making predicting natural conditions difficult. To determine natural stream conditions, I developed models to predict natural stream water chemistry at individual streams across the western USA. Specifically, the models predict a stream’s electrical conductivity (a measure of the amount of solids dissolved in water), acid neutralization capacity, and concentrations of calcium, magnesium, sulfate, total phosphorus, and total nitrogen. These models predict chemistry …

Effects Of Cache Valley Particulate Matter On Human Lung Cells, Todd L. Watterson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the wintertime, residents of the Cache Valley are very aware of the poor air quality that occurs during cold-air inversion episodes. If one somehow avoids the radio and television announcements as well as the electronic roadside signs indicating poor air quality and encouraging less driving, one need only to look upward toward the mountains that surround the valley and notice the lack of daytime visibility. This lack of visibility and health warnings are due to particulate air pollution or particulate matter (PM). PM is only one of many types of regulated air pollution but is the one that occurs …

An Alternate Approach To Ecosystem Mapping: Fusing Orthophotography With Landsat Etm+ Data For A Object-Based Classification, South Eastern Arkansas., David Mcfee

Graduate Theses and Dissertations

Maintaining representative sampling of biologically rich and rare ecosystems has become an important means to preventing biodiversity loss. A limitation in indentifying and quantifying ecosystems is the cost of obtaining high resolution imagery necessary for a high resolution land cover assessment. This research shows how free, different resolution imagery (orthoimages and LANDSAT ETM+) could be combined to produce a hybrid dataset with enhanced spectral, spectral and temporal properties, and processed to obtain a object-based classification of land cover of bottomland and pine hardwood forest in south eastern Arkansas. Three classification techniques were evaluated: 1) a human derived, rule based method, …

Morphological Detection Of Genetic Introgression In Red Junglefowl (Gallus Gallus), Tomas Condon

College of Graduate Studies: Theses & Dissertations

The Red Junglefowl (Gallus gallus) is generally considered to be the primary wild ancestor of the domestic chicken (Gallus gallus domesticus). Because they are common in much of the forested habitat of South and Southeast Asia, they have never been granted any formal conservation status. However, evidence suggests that genetic introgression from free-ranging, escaped, and feral domestic chickens might be so widespread and pervasive that Red Junglefowl may be endangered or even extinct in the wild. Because genetic markers have yet to be identified, detection of introgression has been limited to qualitative morphological traits. Thus, there is a need to …

Religion And Infant Mortality In The United States: A Community-Level Investigation Of Denominational Variations, Ginny Garcia-Alexander, John P. Bartkowski, Xiaohe Xu

Sociology Faculty Publications and Presentations

A burgeoning body of scholarship has explored the influence of community-level religiosity (religious ecology) on various health outcomes. In this study, we enlist data from the Glenmary Census of Churches, county-level infant mortality rates from the NCHS, and select Census data to investigate the relationship between infant mortality and religion. Our study employs both aggregate analyses of major faith traditions (conservative Protestant, mainline Protestant, Catholic, and other religions) as well as decomposition analyses that subdivide conservative Protestants into four variants: fundamentalist, evangelical, Pentecostal, and other conservative Protestant. Our preliminary findings suggest that counties with a high prevalence of Catholic and …

Influence Of Substrate And Hydraulic Variables On Habitat Preferences Of A Sculptured And An Unsculptured Freshwater Mussel, Daniel Goodding

Biology Theses

Freshwater mussels of the family Unionidae in North America have been in decline for at least the past 150 years. Major causes behind the decline are thought to be related to alteration or loss of habitat. Recent efforts by researchers have focused on understanding habitat associations of mussels so that more effective conservation efforts can be applied. Recent studies have identified variables that limit mussel community distributions. These variables are a combination of substrate and hydraulic variables that are associated with substrate stability. Furthermore, recent studies have suggested mussel studies are most informative at larger spatial scales and at high …

Incidence Of Bronchiolitis In Breast Fed Infants Below 2, Haider Nadhim Abd

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Acute viral bronchiolitis is a common respiratory infectious disease of children. OBJECTIVE: To study the relationship between bronchiolitis and breastfeeding in children below 2 years of age. MATERIAL AND METHODS: A prospective study was carried out with100 child aged up to 24 months to evaluate their breastfeeding status as possible risk factors for unfavourable evolution in department of pediatric in AL-Kahdimiya Teaching Hospital during the period from first of October 2008 to the end of March 2009. RESULTS: Hundred cases of bronchiolitis were included in this study. Most of them ( 78 %) were below one year. Male …

Spectrum Estimation With Uniformly And Stochastically Sampled Data: Some Challenges And Strategies., Radhendushka Srivastava Dr.

Doctoral Theses

No abstract provided.

Rumford River Water Quality Assessment Utilizing Benthic Macroinvertebrates

Watershed Access Lab Projects

The students of Qualters Middle School performed a study called “Rumford River Water Quality Assessment Utilizing Benthic Macro invertebrates”. The study was conducted on October 19, 2011 in Mansfield, Massachusetts. The study location consisted of one sampling site at the Fulton’s Pond Waterfall on West Street.

The purpose of this study was to introduce benthic macro invertebrates and their role as indicators for evaluating stream water quality. Students utilized state of the art methods and techniques during all aspects of this study.

The Rumford River is listed on the Environmental Protection Agencies (EPA) National Priority List (NPL). The river was …