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Deep Benthic Coral Habitats Of Glacier Bay National Park And Preserve, Alaska, Elise C. Hartill
Deep Benthic Coral Habitats Of Glacier Bay National Park And Preserve, Alaska, Elise C. Hartill
Electronic Theses and Dissertations
Glacier Bay National Park and Preserve in Southeast Alaska is a system of fjords that presents an ideal natural laboratory to study terrestrial, aquatic and marine patterns of succession due to its unique and recent history of deglaciation. The patterns of deep benthic community assemblages in the fjords of Glacier Bay were investigated by quantitative assessment of underwater photo-quadrats collected using a remotely operated vehicle. The percent cover and diversity of species were lowest near the glaciated heads of the fjords and highest in the Central Channel and at the mouths of the fjords of Glacier Bay, where oceanographic conditions …
"The Dream Is In The Process:" Environmental Racism And Environmental Justice In Boston, 1900 To 2000, Michael J. Brennan
"The Dream Is In The Process:" Environmental Racism And Environmental Justice In Boston, 1900 To 2000, Michael J. Brennan
Electronic Theses and Dissertations
The following work explores the evolution of a resident-directed environmental activism that challenged negative public perception to redevelop their community. Beginning in the 1950s, city leaders justified the dislocation of non-white residents from Boston’s South End with the argument that they failed to maintain personal property and degraded community institutions. Most of these minority residents were forced to move to Roxbury. From 1963 to 1983, Roxbury lost 2,200 housing units. The vacant lots led to illegal dumping, and increased toxicity in the air, water, and soil from undesirable land use businesses such as asphalt plants. As a result, banks, supermarkets …
When Humanity Meets Technology: Contemplating Neil Postman's Critique Of Advertising, Yingwen Wang
When Humanity Meets Technology: Contemplating Neil Postman's Critique Of Advertising, Yingwen Wang
Electronic Theses and Dissertations
This project aims to contemplate Postman’s critique of advertising and offer insights to understand Integrated Marketing Communication (IMC) in today’s mediated environment. As an essential component of IMC, the history of advertising demonstrates and documents that the medium of communication has an extensive influence on IMC practices. The concern about how communication media affect human perception, understanding, and behavior, resides within the central claim of the study of media ecology. Thus, this project investigates IMC through the lens of Postman’s media ecology perspectives, and argues that Postman’s prescient ideas provide both hope and constructive insights. Moreover, Postman’s thermostatic perspective, rooted …
Video Games, Influence, And Identification: The Perpetuation Of Culture Through Digital Worlds, Steven Zwier
Video Games, Influence, And Identification: The Perpetuation Of Culture Through Digital Worlds, Steven Zwier
Electronic Theses and Dissertations
Video games, through their widespread popularity and appeal, transmit meaningful ideas, beliefs, and attitudes via the use of digital worlds, narratives, characters, and play. Play has always held a key role in human life, but the video game medium accentuates and accelerates the reach and impact of play on human users. Jacques Ellul’s philosophy of social propaganda and Kenneth Burke’s rhetorical theory each offer important implications to the persuasiveness of video games; however, when placed in conversation with one another, the union of Ellul and Burke leads to a more complete understanding of how video games have such an effect …
The Postman Always Rings Twice: Neil Postman's Views On Education Are Relevant Again In The 21st Century Classroom, Jennifer Spiegel
The Postman Always Rings Twice: Neil Postman's Views On Education Are Relevant Again In The 21st Century Classroom, Jennifer Spiegel
Electronic Theses and Dissertations
The public education system in America has long been criticized for its inability to prepare students for success as adults. While some engage in a narrative of blame, others ask what can be done to solve this problem. This dissertation examines a narrative crisis in the 21stcentury classroom through the lens of Neil Postman, a 20thcentury media ecologist whose fears about television may finally be realized with the advent of the personal digital device and its impact on the educational sphere. First the past narratives that guided the American school system will be traced from colonial …
Resource Allocation Across Urban And Rural Counties: A Tennessee Case Study, Dontarious Damarco Cowans
Resource Allocation Across Urban And Rural Counties: A Tennessee Case Study, Dontarious Damarco Cowans
Electronic Theses and Dissertations
This study addresses how resource allocation of mobility-promoting organizations vary by characteristics of Tennessee counties. More specifically, I examine the variation of resources provided across urban and rural counties. Building on previous studies of mobility-promoting organizations, this study moves away from neighborhood analysis and updates to larger spatial units to a county level analysis. Including county-level data provides an opportunity to explore potential explanations for the observed regional variation in rates of poverty. Furthermore, this study analyzes aspects of disadvantage and organizational density. I utilize the Social Vulnerability Index and the Relative Rurality Index in combination with U.S. Census and …
Comparative Nutrient Removal With Innovative Green Soprtion Media For Groundwater And Stormwater Co-Treatment, Dan Wen
Electronic Theses and Dissertations
As indicated by the National Academy of Engineering, the understanding of nitrogen cycle has been deemed as one of 14 grand challenges in engineering of the 21st century. Due to rapid population growth and urbanization, the stormwater runoff increased in quantity as well as its nutrient concentrations, which may trigger serious environmental issues such as eutrophication in aquatic systems and ecosystem degradation. This study focuses on stormwater and groundwater quality control via Biosorption Activated Media (BAM) which can be applied to enhance the nutrient removal potential as an emerging Best Management Practices (BMPs). BAM was tested in this study with …
Long-Term Carbon And Copper Impact On Nutrient Removal Via Green Sorption Media In Dynamic Linear Ditch Environments, Diana Ordonez
Long-Term Carbon And Copper Impact On Nutrient Removal Via Green Sorption Media In Dynamic Linear Ditch Environments, Diana Ordonez
Electronic Theses and Dissertations
Nutrient-laden stormwater runoff causes environmental and ecological impacts on receiving water bodies. Biosorption Activated Media (BAM) composed of the sand, tire crumb, and clay have been implemented in stormwater best management practices due to its ability to efficiently remove nutrients from stormwater runoff, such as in roadside linear ditches, via unique chemophysical and microbiological processes. In this study, a set of fixed-bed columns were set up to simulate some external forces in roadside linear ditches and examine how these external forces affect the performance of BAM. In our experiment, scenario 1 simulates the impact that animals such as tortoises, moles …
Ribbeting Results: Emergent Infectious Diseases In Wetland Systems, Ariel Horner
Ribbeting Results: Emergent Infectious Diseases In Wetland Systems, Ariel Horner
Electronic Theses and Dissertations
North American amphibians have recently been impacted by two major emerging pathogens, the fungus Batrachochytrium dendrobatidis (Bd) and iridoviruses in the genus Ranavirus (Rv). Environmental, seasonal and host factors may play important roles in disease dynamics, but few studies incorporate these components into their analyses. Here, we investigated the role of environmental, seasonal, genetic and location effects on driving Bd and Rv infection prevalence and severity in a biodiversity hot spot, the southeastern United States. We used quantitative PCR to characterize Bd and Rv dynamics in natural populations of three amphibian species: Notophthalmus perstriatus, Hyla squirella and Pseudacris ornata and …
Quantifying Early Risks Of Species Invasions: Factors Regulating South To North Bivalve Colonization Of Novel Habitats, Zhiqiang Xia
Quantifying Early Risks Of Species Invasions: Factors Regulating South To North Bivalve Colonization Of Novel Habitats, Zhiqiang Xia
Electronic Theses and Dissertations
Management of species invasions ideally requires early detection of species at low abundance, which is often challenging for traditional methods. Environmental DNA (eDNA) provides a promising tool with enhanced sensitivity relative to traditional methods. As an emerging method, however, detection of species at low abundance based on eDNA needs to be optimized to improve detection rate and reduce false negatives. I conducted a meta-analysis, the results of which suggested the significance of using the highly sensitive PCR method and extensive sampling (i.e., replicates sampling and large water volume) to improve detection rate in eDNA-based, low-abundance species detection programs. Needs for …
The Role Of Local Adaptation On Biting Performance In Trinidadian Guppies, Hannah E. Cohen
The Role Of Local Adaptation On Biting Performance In Trinidadian Guppies, Hannah E. Cohen
Electronic Theses and Dissertations
Divergent selection pressures in populations that occupy different environments can result in phenotypic differentiation in traits that provide a local fitness advantage. Trinidadian guppy (Poecilia reticulata) populations are separated by physical barriers such as waterfalls which result in repeated shifts in selective pressures from predator avoidance in high predation environments towards resource competition in low predation environments. Such shifts in selection pressures have previously shown that a range of locally adapted morphological and behavioral traits are changed. However, the role of local adaptation on biting behaviors remains unclear. I analyzed morphological differences such as body length, jaw position, …
Acoustic Ecology And Sound Mapping The University Of Central Florida Main Campus, Robert Clarke
Acoustic Ecology And Sound Mapping The University Of Central Florida Main Campus, Robert Clarke
Electronic Theses and Dissertations
"Acoustic Ecology and Sound Mapping the University of Central Florida Main Campus" explores the intersection of place and space, sound studies and acoustic ecology, visualization, and archives. The end result consists of a collection of "soundwalk" and stationary recordings conducted from 2016-2019 at the University of Central Florida (UCF) main campus in Orlando presented as an online Sound Map. This archive previously did not exist and provides a snapshot of the various sounds heard throughout the campus as well as a starting point and context for future research into this still-emerging field of acoustic ecology and sound studies. While the …
Investigating The Effectiveness Of A Six-Week Exercise Program For Mental Health Outcomes Among University Students, Kieran Galen Hawksley
Investigating The Effectiveness Of A Six-Week Exercise Program For Mental Health Outcomes Among University Students, Kieran Galen Hawksley
Electronic Theses and Dissertations
The purpose of this study was to examine the influence of a six-week exercise program on university students’ mental health outcomes. The participants included 10 individuals enrolled at a Canadian university, representative of a range of educational programs (e.g., education, engineering, science) and varying year of study (first year to graduate studies). Using the Mental Health Inventory-38 (MHI-38) as a measure of Psychological Distress, Psychological Well Being, and overall mental health (Mental Health Index), paired samples t test demonstrated a nonsignificant change in the Mental Health Index scores, t(9) = 0.75, p > .05 and Psychological Well-Being, t(9) = -0.55, p …
Investigating The Late Woodland Climate Of Old Tampa Bay, Florida, Jaime Rogers
Investigating The Late Woodland Climate Of Old Tampa Bay, Florida, Jaime Rogers
Electronic Theses and Dissertations
Tampa Bay and the broader Central Gulf Coast region of Florida bear evidence of site reduction and population decline during the onset of the Late Woodland period (AD 500-1000). Concomitantly, Weeden Island culture flourished to the north, while climatic instability loomed to the south. It is unclear if the site abandonments in the area between the two are related to social or cultural change, an unstable climate, or a combination thereof. Interdisciplinary research has provided evidence for climate change and sea level regression during the sixth and seventh centuries in Southwest Florida, but these variables have yet to be investigated …
Discarnation: Expounding On Marshall Mcluhan's Critique Of Modern Subjectivity, Amanda Sevilla
Discarnation: Expounding On Marshall Mcluhan's Critique Of Modern Subjectivity, Amanda Sevilla
Electronic Theses and Dissertations
This project presents Marshall McLuhan’s work as an explication of discarnate subjectivity in mediated environments, with special focus on the consequences of technological environments in society. The first and second chapters focus on McLuhan’s ground, sensibilities, and practice to shed light on his intricate discussions of social perceptions emerging in modern times—i.e., communal awareness propels perceptual and cultural shifts. The third chapter attends to people’s perceptual compass, or their ability to interpret the world around them. Chapter four considers some of the phenomenological aspects of McLuhan’s probes. The ideas show disconnects between time and space that contribute to discarnation in …
Lead And Crime: An Ecological Study Between Lead Contaminated Topsoil And Violent Crime., Brian Guinn
Lead And Crime: An Ecological Study Between Lead Contaminated Topsoil And Violent Crime., Brian Guinn
Electronic Theses and Dissertations
Lead is a known neurotoxicant. Human exposure to lead comes primarily through environmental exposures, including remnant lead paint, lead contaminated topsoil and lead contaminated water. Prenatal and early life lead exposure has been associated with numerous neurocognitive and neuropsychiatric disorders. This dissertation presents findings from an ecological study which evaluated the geospatial association between topsoil lead content and the incidence of FBI designated violent crime in Jefferson County, Kentucky. A total of 412 topsoil samples were collected along roadways (n=300) and from Louisville Metro Parks (n=112). Jefferson County crime data was obtained from the Louisville Metro Police Department – Crime …
Bryophyte Assemblages On American Hornbeam (Carpinus Caroliniana) And The Surrounding Arboreal Communities Within The Forest Of East Texas, Cassey Edwards
Bryophyte Assemblages On American Hornbeam (Carpinus Caroliniana) And The Surrounding Arboreal Communities Within The Forest Of East Texas, Cassey Edwards
Electronic Theses and Dissertations
The bryophytes, the non-vascular plants, include the mosses (Bryophyta with approximately 13,000 species), the liverworts (Marchantiophyta with approximately 5,000 species), and the hornworts (Anthocerotophyta with approximately 150 species). Initial observations indicated that the midstory tree Carpinus caroliniana Walter (American hornbeam) has a bryophyte composition with an unusually high diversity of leafy liverworts. Voucher samples were taken from the four intercardinal directions (Northeast, Northwest, Southwest, and Southeast) from six Carpinus trees and their nearest neighbor that was neither Pinus nor another Carpinus at each of six sites across East Texas. Percent coverage, species richness, Shannon’s diversity and Pielou’s evenness were computed. …
The Population Ecology And Behavior Of The Cave Salamander, Eurycea Lucifuga (Rafinesque, 1822)., Joseph Gavin Bradley
The Population Ecology And Behavior Of The Cave Salamander, Eurycea Lucifuga (Rafinesque, 1822)., Joseph Gavin Bradley
Electronic Theses and Dissertations
The Cave Salamander, Eurycea lucifuga (Rafinesque, 1822), is a little-known species, yet a common inhabitant of caves in the eastern United States. Salamanders are often important components of ecological communities and ecosystems, influencing critical processes such as nutrient cycling and community composition through their predation on invertebrates. Cave-dwelling salamanders such as E. lucifuga may thus appreciably influence the relatively simple ecosystems and communities of caves. Any such influence may be particularly important because these habitats and the organisms that reside in them are often of conservation concern. I used non-invasive methods to study the demographics, movements, and habitat selection of …
Impact Of Partial Migration, Ontogeny, And Species Invasions On Lake Sturgeon Feeding Ecology In The Huron Erie Corridor, Tanya E. Fendler
Impact Of Partial Migration, Ontogeny, And Species Invasions On Lake Sturgeon Feeding Ecology In The Huron Erie Corridor, Tanya E. Fendler
Electronic Theses and Dissertations
Research surrounding lake sturgeon (Acipenser fulvescens) feeding ecology in the Great Lakes is dated compared to other aspects of their ecology, despite their threatened status. Recent research has demonstrated migration polymorphisms in lake sturgeon from the Lake Huron-to-Lake Erie corridor (HEC), but dietary links are lacking in this system. This knowledge gap led to the question of whether or not lake sturgeon feeding ecology varies both temporally and spatially within the HEC. We found adult lake sturgeon were generalist feeders in this system. After the round goby (Neogobius melanostomus) invasion, differences in isotopic niches were observed across age-classes. Mean stable …
T Socio-Ecology Of Managed Honeybees (Apis Mellifera) In The Louisville Metro Area., Haileigh M. Arnold
T Socio-Ecology Of Managed Honeybees (Apis Mellifera) In The Louisville Metro Area., Haileigh M. Arnold
Electronic Theses and Dissertations
Humans have a long history of the practice of beekeeping to harness the power of pollination. This managed pollinator system consists of beekeepers, honeybees, and their environment. However, recent disease, pesticide use, and land use factors honeybee threaten this relationship. In the face of such concerns it is important to examine the factors that impact and can help sustain our managed pollinator systems. In this thesis, the national and Kentucky state-level policies that affect managed pollinator systems were examined and socio-ecological factors that may contribute to honeybee hive growth and losses were assessed along an urban development gradient in Louisville, …
Weathering The Storm: Effects Of Storm Periods On Ancient Populations Of Coastal Florida, Brett Parbus
Weathering The Storm: Effects Of Storm Periods On Ancient Populations Of Coastal Florida, Brett Parbus
Electronic Theses and Dissertations
Understanding human response to natural disasters is a core problem for environmental archaeologists. Hurricanes are often devastating to coastal populations, and recognizing behavioral change in response to these major storm events provides context for the resilience and adaptability of ancient coastal people. This research project focuses on retrodicting periods of increased storm frequency and intensity for regions of the Florida coast and comparing those storm periods to the existing archaeological record in order to determine if there are correlations between increased storminess and periods of site abandonment and/or changes in subsistence strategy. These potential correlations may aid in our understanding …
An Examination Of Beta Diversity Indices And Their Predictors In Two Large-Scale Systems, Philip Schroeder
An Examination Of Beta Diversity Indices And Their Predictors In Two Large-Scale Systems, Philip Schroeder
Electronic Theses and Dissertations
Biodiversity is what conservation biology was developed to conserve. It is the physical manifestation of life as a concept and, be it for practical or idealistic reasons, all conservationists seek to protect or, in some cases, enhance it. Because of its monolithic importance to the field, much effort has been expended trying to better measure and understand it. Recently, greater attention has been paid to the partition of diversity; the observation that the total diversity of a system (γ) can be broken down into within-site diversity (α) and between-site diversity (β). In particular, it has been noticed that the β …
Distribution, Ecology, Disease Risk, And Genetic Diversity Of Swift Fox (Vulpes Velox) In The Dakotas, Emily Louise Mitchell
Distribution, Ecology, Disease Risk, And Genetic Diversity Of Swift Fox (Vulpes Velox) In The Dakotas, Emily Louise Mitchell
Electronic Theses and Dissertations
The swift fox (Vulpes velox), a native species once abundant throughout the Northern Great Plains (NGP), has declined due to changes in land use, historic predator eradication programs, and predation by larger canid species. Currently, the species is estimated to occupy 44% of its historic range. In the NGP, the status of the swift fox varies by state, ranging from furbearer to endangered species. However, knowledge of the current status of swift foxes in the NGP is lacking due to an absence of systematic population monitoring. Improving the current state of knowledge concerning swift fox populations in the …
Vulnerability Of Protected Areas To Human Encroachment, Climate Change And Fire In The Fragmented Tropical Forests Of West Africa, Francis Kwabena Dwomoh
Vulnerability Of Protected Areas To Human Encroachment, Climate Change And Fire In The Fragmented Tropical Forests Of West Africa, Francis Kwabena Dwomoh
Electronic Theses and Dissertations
The Upper Guinean region of West Africa is home to some of the most globally significant tropical biodiversity hotspots, providing ecosystem services that are crucial for the region’s socio-economic and environmental wellbeing. Nonetheless, following decades of human-caused destruction of natural habitats, protected areas currently remain the only significant refugia of original vegetation relics in landscapes that are highly fragmented. Aside from having strong geographic variation in land use, climate, vegetation, and human population, the region has also experienced remarkable biophysical and socio-economic changes in recent decades. All these factors influence the fire regime and the vulnerability of forests within protected …
Examining The Influence Of Personal And Environmental Factors On Treatment Outcomes In Opioid Dependent Medication-Assisted Treatment Patients., Vierne Placide
Examining The Influence Of Personal And Environmental Factors On Treatment Outcomes In Opioid Dependent Medication-Assisted Treatment Patients., Vierne Placide
Electronic Theses and Dissertations
Opioid abuse has become a global epidemic and is now a huge public health concern here in the US. Non-medicinal use of opioid prescription drugs is at the forefront of the epidemic and considered the "gateway" drug to other illicit opioid use. As opioid prescribing has increased over the last decade in the US, so has opioid-related deaths, surpassing car accidents and suicide as the leading cause of injury-related deaths. Medication assisted treatment (MAT) is fundamental in decreasing opioid abuse overdose and mortality. Therefore, the research study aims to determine if counseling adherence, opioid abstinence, and retention in MATs are …
The Effect Of Environmental Perturbations On The Plant Phyllosphere Microbiome, Bram W. Stone
The Effect Of Environmental Perturbations On The Plant Phyllosphere Microbiome, Bram W. Stone
Electronic Theses and Dissertations
Applying ecological concepts to microbial communities has proved to be challenging, often revolving around the relative importance of stochastic and deterministic processes applied heterogeneously across the habitat in time or space. The phyllosphere is the aboveground surface of plants on which microbial communities, composed primarily of Bacteria, but also including Archaea and microbial eukaryotes, exist and is characterized by stochastic immigration balanced with strong selective forces. Variation in bacterial community composition was characterized across space and time, with special attention given to the exposure of phyllosphere communities to rain as a plausible mechanism of ecological disturbance. Bacterial communities were characterized …
The Effects Of Acidic Conditions And Tannins On The Survival, Development, And Behavior Of Cope’S Gray Treefrog (Hyla Chrysoscelis), Caleb E. Dodd
The Effects Of Acidic Conditions And Tannins On The Survival, Development, And Behavior Of Cope’S Gray Treefrog (Hyla Chrysoscelis), Caleb E. Dodd
Electronic Theses and Dissertations
As amphibians decline around the world, freshwater acidification resulting from pollutants and acid rain may be a contributor. The ability of organisms to cope with environmental changes is greatly mediated by behavior, and recent studies indicate that anthropogenic acidification impairs behavioral responses by impacting olfactory abilities of aquatic organisms. Responding appropriately to novel stimuli is important for individual performance and survival, and pollutants may cause organisms to behave maladaptively. In this study I sought to: a) determine whether the oviposition site choices of adult female frogs correspond with the pH and tannin conditions that maximize tadpole survival and performance in …
Moving Mountains : A Study Examining Long-Term Impacts Of Mountaintop Removal Coal Mining On Mortality In The Appalachian Region Using Geographic Information Sciences Techniques., James Howard Kent Pugh
Moving Mountains : A Study Examining Long-Term Impacts Of Mountaintop Removal Coal Mining On Mortality In The Appalachian Region Using Geographic Information Sciences Techniques., James Howard Kent Pugh
Electronic Theses and Dissertations
Over the last hundred years, the Appalachian region has been dominated by the coal industry. It has also been and currently is one of the unhealthiest regions in the United States. Recent scholarship has examined the relationship between coal mining and health and mortality rates in the Appalachian region. The first study incorporates air quality and pollution data to examine if coal mining counties have higher levels of pollution and if this pollution contributes to mortality disadvantage. In the second study, I construct a population-based coal-exposure measure to better evaluate the relationship between coal mining and health I find that …
Diversity For Diversity's Sake? The Relationship Between Diversity And School-Level Academic Achievement., Richard Aaron Wisman
Diversity For Diversity's Sake? The Relationship Between Diversity And School-Level Academic Achievement., Richard Aaron Wisman
Electronic Theses and Dissertations
There is contention among researchers about how to best operationalize socioeconomic status (SES). This study seeks to provide an explicit definition of one metric of socioeconomic status, the diversity index (DI) of Jefferson County Public Schools (JCPS) and investigates its efficacy at predicting the aggregate academic achievement of students within a school, relative to other common metrics of SES which are analogous to components of the DI. Another purpose of this study is to investigate possible peer effects of socioeconomic diversity on low SES students. This study utilizes a correlational – multiple regression approach to explore relationships among study variables …
Cranial Morphological Distinctiveness Between Ursus Arctos And U. Americanus, Benjamin James Hillesheim
Cranial Morphological Distinctiveness Between Ursus Arctos And U. Americanus, Benjamin James Hillesheim
Electronic Theses and Dissertations
Despite being separated by millions of years of evolution, black bears (Ursus americanus) and brown bears (Ursus arctos) can be difficult to distinguish based on skeletal and dental material alone. Complicating matters, some Late Pleistocene U. americanus are significantly larger in size than their modern relatives, obscuring the identification of the two bears. In the past, fossil bears have been identified based on differences in dental morphology or size. This study used geometric morphometrics to look at overall differences in cranial shape and used step-wise discriminant analysis to identify specific characters that distinguish cranial morphology between …