Other Environmental Sciences Commons^™

The Influence Of Marsh Edge And Seagrass Habitat On Summer Fish And Macroinvertebrate Recruitment To A Northern Gulf Of Mexico Coastal System, Rebecca Lea Gilpin

Theses and Dissertations

Marshes and seagrass beds have been widely recognized as important habitat for estuarine species, but less has been done on how these habitats interact and function together, thereby limiting understanding of the variability of juvenile recruitment to coastal systems. Therefore, the objective of this study was to assess the interaction between fringing marsh and adjacent seagrass for the provision of habitat for juvenile nekton. Weekly seine net and benthic seagrass core sampling from June to November 2020 determine the relationship between nekton and marsh-edge and seagrass habitat. This study shows disparate results, in terms of the effects of proximity to …

Automated Mapping Of Oblique Imagery Collected With Unmanned Vehicles In Coastal And Marine Environments, Jacob B. Freeman

Theses and Dissertations

Recent technological advances in unmanned observational platforms, including remotely operated vehicles (ROVs) and small unmanned aerial systems (sUAS), have made them highly effective tools for research and monitoring within marine and coastal environments. One of the primary types of data collected by these systems is video imagery, which is often captured at an angle oblique to the Earth’s surface, rather than normal to it (e.g., downward looking). This thesis presents a newly developed suite of tools designed to digitally map oblique imagery data collected with ROV and sUAS in coastal and marine environments and quantitatively evaluates the accuracy of the …

Aestheticization As A Type Of Erasure: An Ecocritical Examination Of Three Etchings From James Mcneill Whistler's 'Thames Set' (1859-1871), Sydney Ion

Theses and Dissertations

This thesis explores “A Series of Sixteen Etchings of Scenes on the Thames” (1859-1871), Thames Set, by James Abbott McNeill Whistler (1834-1903), a group of etchings that negotiates the effects of the “Great Stink” on the Thames riverbank and its people. I argue that the series exhibits a strange paradox: the intentional exclusion of accurate environmental elements and sensorial details to achieve a romanticized nostalgic framework that serves Whistler’s aesthetic ideals. This aestheticization of the environmental crisis is the foundation from which Whistler’s modernization grew. Recent research has understood the Thames Set as evidence of Whistler’s involvement in depicting lower-class …

Molecular Insights Into The Redox Of Atmospheric Mercury Through Laser Spectroscopy, Rongrong Wu Cohen

Theses and Dissertations

The widespread pollution of mercury motivates research into its atmospheric chemistry and transport. Gaseous elemental mercury (Hg(0)) dominates mercury emission to the atmosphere, but the rate of its oxidation to mercury compound (Hg(II)) plays a significant role in controlling where and when mercury deposits to ecosystems. Atomic bromine is regarded as the main oxidant for Hg(0) oxidation, known to initiate the oxidation via a two-step process in the atmosphere – formation of BrHg (R1) and subsequent reactions of BrHg with abundant free radicals Y, i.e., NO2, HOO, etc. (R2), where the reaction of BrHg +Y could also lead to the …

Common Ground Over Common Water: Defining The Public Interest In The Milwaukee Watershed, Thomas Anthony Gentine

Theses and Dissertations

My dissertation examines government and nongovernment entities’ attempts to restore and protect the use and health of the Milwaukee River and its watershed from 1960 to 2000. Under Mayor Henry Maier’s leadership, Milwaukee worked to reclaim the urban riverway to stimulate economic growth. However, state and federal representatives, after the passage of the 1965 Water Quality Act, demanded that the city government prioritize updating the combined storm and sewer system to lessen pollution in the Milwaukee River. At the same time, other groups worked to save rural areas from unplanned development and further degradation of the waterway. Influential groups included …

Exploring The Impact Of End-User Engagement On The Diffusion And Adoption Of A Climate Resilience Tool In The Gulf Of Mexico, Renee C. Collini

Theses and Dissertations

Climate change-related hazards negatively impact ecosystems, economies, and quality of life. Significant resources have been invested in data collection and research with the goal of enhanced understanding and capacity to predict future conditions in order to mitigate or adapt to intensifying hazard risk. The expansive production of climate science has generated a necessary complimentary enterprise dedicated to enhancing decision-makers’ understanding of and access to climate science as it is essential for future societal and ecological well-being. Though the aim of these many tools is to support resilient decision-making in the face of climate change, professionals report an underutilization of climate …

Selection And Demography Drive Range-Wide Patterns Of Mhc Variation In Mule Deer (Odocoileus Hemionus), Rachel M. Cook

Theses and Dissertations

Variation at functional genes involved in immune response is of increasing concern as wildlife diseases continue to emerge and threaten populations. The amount of standing genetic variation in a population is directly associated with its potential for rapid adaptation to novel environments. For genes in the major histocompatibility complex (MHC), which are crucial in activating the immune response and which have extremely high levels of polymorphism, the genetic variation has been shown to be influenced by both parasite-mediated selection and historical population demography. To better understand the relative roles of parasite-mediated selection and demography on MHC evolution in large populations, …

Health Goals For Perfluorinated Alkyl Substances (Pfas): A Review Of Branched Isomers, The Role Of Industrial Sources, And The Implications Of Pfas In Biosolids On End-Of-Life Disposal Methods, Katarina Schulz

Theses and Dissertations

Per- and polyfluorinated alkyl substances, or PFAS, have been used for over half a century, but have become an emerging contaminant of significant concern due to their newly found widespread occurrence and recalcitrance in the environment, their tendency to bioaccumulate, and the health effects now associated with a very low level of exposure. Many gaps in knowledge remain about the fate of these chemicals in the environment and the extent of their impacts on biota. This thesis aims to fill some of the recognized gaps in knowledge: differences between linear and branched isomers of PFAS, predicting the presence of PFAS …

Bottom-Up Understanding Of Informal Settlements: Perspectives Of Urban Slum Dwellers In Nima, Ghana., Bernard Apeku

Theses and Dissertations

More than a quarter of the world’s population lives in informal settlements which house a rapidly growing proportion of the inhabitants of cities in sub-Saharan Africa, such as Accra, Ghana, and in the Global South more generally. However, scholars have shown that the urban planning and urban redevelopment strategies that affect these settlements are top-down in character with minimal resident participation. These prevailing planning and redevelopment strategies are based on the outsiders’ perceptions of informal neighborhoods, rendering them quite inefficient. Therefore, to develop workable policies and strategies that will improve the living condition of informal urban settlers, it is important …

An Internatural Communication Study Of Identity Within Nonprofit Animal Shelters, Samentha Emily Sepúlveda

Theses and Dissertations

In a two-part study of this dissertation project, I relied on qualitative research methods to examine the stories of animal shelter employees and volunteers—stories about animal shelters, animal sheltering, and shelter animals—to analyze communication processes that shape staff-identity, organizational-identity, and organizational identification. This project was guided by the communicative constitution of organizations (CCO) approach, which frames communication as not simply something that happens within an organization, but rather argues organization happens in communication. Furthermore, contributing to internatural communication research, this project explored identity and identification from a “more-than human” perspective. Relating CCO and internatural communication to research in this dissertation …

Operational Carbon Footprint Of The U.S. Water Sector’S Energy Consumption, Louis J. Zib Iii

Theses and Dissertations

Accounting of energy-related GHG emissions in the water sector have largely been conducted at single utilities or cities and rarely at a regional or country scale. In this study, we assess the carbon footprints of operational energy use for 76 wastewater utilities and 64 water utilities across the United States. Additionally, we investigate water-related GHG emissions at a sub-annual scale through three case cities to understand how GHG emissions change at the monthly scale. We estimate the total drinking water and wastewater GHG emissions associated with electricity, biogas, natural gas, and fuel oil consumption across the United States to be …

Grief, Loss, And Climate Change: Validation Of A Solastalgia Scale, Claire Luce

Theses and Dissertations

Climate change has been identified as a defining issue of this century (United Nations, n.d.). Climate change impacts human wellbeing including mental health. While much research has focused on the way that the effects of climate change cause increases in common mental disorders, mental health is not just the absence of these disorders (World Health Organization, 2014). Non-pathologized mental health responses to climate change, such as the grief and loss that results from climate change impacts, are a growing consideration for researchers. Solastalgia, or the distress experienced in the absence of the solace once provided by the environment in the …

Modeling Vegetation Effects On Barrier Island Evolution, Eric W. Schoen

Theses and Dissertations

Barrier islands play a significant role in protecting coastlines and harboring coastal habitats. In an effort to study and better understand the evolution of barrier island systems, a cellular model capturing various meteorological and environmental processes is proposed. Erosion due to wind, gravity, and marine processes are coupled with plant population effects. We demonstrate the inhibition of plant cover on sediment mobility, island migration, and erosion in the presence of sea level rise.

Characterizing Community-Level Size Spectra In Piedmont Streams Of Virginia (Usa), Giancarlo Racanelli

Theses and Dissertations

Many aquatic communities demonstrate an inverse scaling relationship between average body mass and density. Using quantitative samples of macroinvertebrates and fishes, we modeled this relationship in three Piedmont streams where little empirical research has been conducted. The size spectra (SS) method, in which individuals are identified by size, not taxonomic identity, was used with linear regression to model density as a function of mass. Fish and benthic invertebrate samples were collected on simultaneous days during September, then used to develop community-level SS models (combined fish and invertebrate data) for each stream. Invertebrate samples were also collected from each stream in …

Projected Impacts Of Climate Change On Risk Of Spring Frost And Fire Blight For Malus Domestica, Paul J. Racco

Theses and Dissertations

The impact of climate change is projected for apple phenology, frost attrition, and fire blight risk under the highest emissions scenario through the 21st century.

Regional Drivers Of Organic Carbon Age In Lotic Systems Of The Conterminous United States, Kaycee Faunce

Theses and Dissertations

Rivers play a critical role in global carbon (C) budgets despite their comparatively small surface area. A significant portion of the terrestrial C that they receive is transformed, re-mineralized, or stored during transit to the ocean. Radiocarbon (∆¹⁴C) data show that a fraction of riverine organic C (OC) has been pre-aged in the terrestrial environment. Lateral export of carbon from these aged pools may contribute to atmospheric carbon dioxide emissions through microbial and photochemical oxidation. However, little is known about the regional climatic, anthropogenic, and landscape factors that promote the mobilization of aged OC to rivers. This study …

Unraveling Plague Ecology Through Vector And Host Genetics, Rachael Marie Giglio

Theses and Dissertations

The transmission of vector-borne diseases involves complex interactions between vectors and their host species. These complex host-parasite interactions can be difficult to study with traditional, field-based methods. My dissertation aims to use a population genomics approach to elucidate transmission pathways of plague among prairie dog colonies. Plague is a flea-borne, zoonotic disease caused by the bacterium Yersinia pestis. It is infamous for causing the Black Death (1347-1353), one of the most devastating pandemics in human history. Since its emergence in North America around 1900, plague has spread to native rodents, thus creating a sylvatic cycle. Prairie dogs (Cynomys spp.) are …

Fielding Sustainability: The Potential For Compost Extract As An Amendment On Athletic Turfgrass, Lacy M. Adams

Theses and Dissertations

Sustainability and green initiatives are being pushed across the country and the globe, but athletics are not seeing the same pressures as intensely. Golf courses are largely the only athletic arena that have received pressure and are beginning to implement more sustainable management practices. Agriculture is also making strides to use less chemicals through organic farming and improve soil health with cover crops. Meanwhile, the rest of the athletic world continues to contribute to soil compaction, chemical maintenance, and runoff all of which affect the quality of the local environment. The strides to improve athletics’ sustainability record can be seen …

Conservation Genomics Of Cascades Frogs (Rana Cascadae) At The Southern Edge Of Their Range, Bennett Hardy

Theses and Dissertations

Cascades frogs (Rana cascadae) in the southern Cascades Range of California have been declining over the last 30 years, primarily due to the fungal pathogen, Batrachochytrium dendrobatidis (Bd). In the Lassen Region of the southern Cascades, at least six of the eleven remaining localities face extirpation within 50 years. These small and isolated populations are prone to negative genetic effects including reduced diversity and increased inbreeding which could potentially exacerbate declines. I used a large dataset of SNP loci generated from high-throughput sequencing to characterize patterns of genetic structure and diversity in twelve R. cascadae populations in California to prioritize …

Agents Of Change: Scholarly Intervention At The Science-Policy Nexus, Daniel Card

Theses and Dissertations

This dissertation examines an emerging “engaged rhetoric of science, technology, and medicine” (ERSTM)—an effort to ensure rhetoric’s “broader impacts” by more directly engaging the practices of science and sociotechnical policymaking. Through careful analysis of engaged rhetorical practice, I identify divergent conceptualizations of both rhetoric and engagement and subsequently draw on new materialist rhetorical theory and empirical research on science communication and public engagement to advance “problem-oriented rhetorical catalysis” (PRC) as a mode of engagement capable of advancing rhetoric’s institutional value and ethical commitments without abandoning its core disciplinary expertise and areas of inquiry. I further suggest the PRC is uniquely …

Is It Rational To Care About The Natural Environment?, Joshua Brown

Theses and Dissertations

This paper helps address the question of how people who currently care about the natural environment, or nature, might rationally persuade those who do not currently have such concern. Philosophers have largely ignored this question, but it is important outside philosophy. For instance, many environmental advocates seem to believe that others should care about nature. At least much writing that falls under the broad category of environmentalism intends to persuade us to care about nature in one way or another.

In this paper, I argue that people should care about nature to the extent that they have three other, rationally …

Identifying With “The Native” In Anglo-American Environmental Writing: A Rhetorical Study, Alexis Piper

Theses and Dissertations

ABSTRACT

IDENTIFYING WITH “THE NATIVE”

IN ANGLO-AMERICAN ENVIRONMENTAL WRITING:

A RHETORICAL STUDY

by

Alexis F. Piper

The University of Wisconsin-Milwaukee, 2016

Under the Supervision of Professor Anne Wysocki

In an effort to contribute to rhetorical theories of “identification” this dissertation examines Anglo nature writing written for Anglo audiences in the United States over several centuries. In my conclusion, I suggest approaches current nature writers might use to offer audiences ways of engaging with Indigenous peoples and Native conceptions of environment that are more ethical, appropriate, and effective than approaches used in previous centuries. I maintain that such approaches could potentially …

Eco Ephemeral: Works By Thomas Ferrella & Artists’ Books From Special Collections, Uw-Milwaukee Libraries, Pamela Caserta Hugdahl

Theses and Dissertations

This thesis essay and accompanying exhibition approach environmental concerns through an art historical perspective by considering works of art by Thomas Ferrella, M.D. and artists’ books from Special Collections at UW-Milwaukee Libraries. The exhibition evades conventional boundaries of galleries in order to present artists’ books in their intended manner and to display Ferrella’s outdoor installations in context with UWM’s award-winning sustainability initiatives. The results exemplify how we shape earth and in turn how our actions upon earth impact us, emphasizing human interdependence on fragile ecosystems. Ferrella’s artworks and medical expertise in combination with the content in the artists’ books and …

Effects Of Drift, Selection And Gene Flow On Immune Genes In Prairie Grouse, Zachary Bateson

Theses and Dissertations

Fragmentation of natural habitats is related to population decline in many species. The resulting small and isolated populations are expected to lose genetic variation at a rapid rate, which reduces the ability to adapt to environmental change. One concern is that small populations are more susceptible to emerging pathogens due to the loss of variation at immune genes. My dissertation examined the relative effects of gene flow, genetic drift and selection on immune genes in prairie-chickens (Tympanuchus cupido), a species that has undergone drastic population declines across their range. In the first chapter, I examined how artificial gene flow through …

Transportation And Sanitation Drivers Of Land Use/Land Cover Change: Loss Of The Jamaica Bay Wetlands, Margaret Joy Cytryn

Theses and Dissertations

This thesis presents an analysis (1830-2014) of the historical events of land use/land cover change in the Jamaica Bay estuary, identification of the agents of change, and a perspective on the potential drivers of transportation and sanitation in land use/land cover change.

Perceptions Of Bike Sharing In Underserved Communities Within Milwaukee And The Twin Cities, James Hannig

Theses and Dissertations

Despite becoming increasingly more popular in cities across North America, many bikeshare systems have received criticism for not reaching minority and low-income populations. Several bikeshare operators have implemented measures to reach these populations including removing financial barriers, placing stations in underserved neighborhoods, and partnering with various community organizations. However, until recently, few have explored how people in these underserved areas perceive bike sharing.

Feedback was solicited from key community partners in Milwaukee, Wisconsin and Minneapolis/St. Paul, Minnesota to better understand how bike sharing is perceived in underserved communities and to determine whether other models could better address the transportation needs …

Speed And Resolution In The Age Of Technological Reproducibility, Shawn Taylor

Theses and Dissertations

The rate of acceleration of the biologic and synthetic world has for a while now, been in the process of exponentially speeding up, maxing out servers and landfills, merging with each other, destroying each other. The last prehistoric relics on Earth are absorbing the same oxygen, carbon dioxide and electronic waves in our biosphere as us. A degraded .jpeg enlarged to full screen on a Samsung 4K UHD HU8550 Series Smart TV - 85” Class (84.5” diag.). Within this composite ecology, the ancient limestone of the grand canyon competes with the iMax movie of itself, the production of Mac pros, …

Proof-Of-Concept Of Environmental Dna Tools For Atlantic Sturgeon Management, Jameson Hinkle

Theses and Dissertations

Abstract

The Atlantic Sturgeon (Acipenser oxyrinchus oxyrinchus, Mitchell) is an anadromous species that spawns in tidal freshwater rivers from Canada to Florida. Overfishing, river sedimentation and alteration of the river bottom have decreased Atlantic Sturgeon populations, and NOAA lists the species as endangered. Ecologists sometimes find it difficult to locate individuals of a species that is rare, endangered or invasive. The need for methods less invasive that can create more resolution of cryptic species presence is necessary. Environmental DNA (eDNA) is a non-invasive means of detecting rare, endangered, or invasive species by isolating nuclear or mitochondrial DNA (mtDNA) from the …

Urban River Restoration And Environmental Justice: Addressing Flood Risk Along Milwaukee's Kinnickinnic River, Nicholas Joel Schuelke

Theses and Dissertations

Flood risk has only recently received attention in environmental justice research. Few `flood justice' studies in the US have focused on urban inland flooding or flood control efforts. I develop a conceptual framework of a paradigm shift from a technocratic, utilitarian approach to river engineering to that of bioengineering and public participation. Qualitative analysis of a combination of archival, interview, and observational data is conducted using the Kinnickinnic River in Milwaukee as a case study. I demonstrate that the channelization of the river in the early 1960s was largely the result of political pressures following significant flood events, rather than …

Evaluation Of Alternative Culling Strategies For Maintenance Of Genetic Variaton In Bison (Bison Bison), Rachael Marie Toldness

Theses and Dissertations

Bison (Bison bison) once numbered in the millions and roamed across much of the lower 48 states. By the late 1800s, overhunting had reduced the population to around 1,000 individuals. Strong efforts to establish managed herds have resulted in a steady bison population increase. Currently, six herds are maintained by the U.S. Fish and Wildlife Service (FWS) at National Wildlife Refuges (NWRs) and are intensively managed through annual culling to keep herd size at targeted levels. Although various criteria have historically been used to select individuals for culling, the FWS currently employs an allele frequency based strategy that we have …