Digital Commons Network^™

The Analysis Of Ancient Dna: From Mitochondria To Pathogens, Tre Joseph Marcus Blohm

Graduate Student Theses, Dissertations, & Professional Papers

Ancient DNA (aDNA) is arguably one of the most difficult science fields to work in due to the constant battle against contamination and degradation; however, it is also one of the most rewarding. aDNA researchers have consistently garnered interest the world over with their findings and sparking the curiosity of many who wish to know more about who we are as Homo sapiens. Mitochondrial DNA (mtDNA) and pathogen DNA were used in this dissertation to understand more about where populations came from, how they moved, and what their environment was like through the identification of their maternally inherited mtDNA and …

Out Of Sight, Out Of Mind: An Exploration Of Wastewater Issues And Possible Solutions In And Out Of Montana, Keely I. Larson

Graduate Student Theses, Dissertations, & Professional Papers

Larson, Keely, M.A., Spring 2023

Major:Environmental and Natural Resources Journalism

Out of sight, out of mind: An exploration of wastewater issues and possible solutions in and out of Montana

Chairperson: Dennis Swibold

Co-Chairpersons: Nadia White, Sarah Halvorson

This is a master’s project, featuring three stories, linked in theme. The first starts with a nationally scoped story about septic systems in resort towns and what happens when too many people want to visit areas like Cape Cod, the Florida Keys or, more locally, Seeley Lake, and overwhelm waste disposal methods. Often in these areas that are more remote, septic systems …

Tree Line, Eric Joseph Jensen

Graduate Student Theses, Dissertations, & Professional Papers

I was raised under a doctrine of extreme truth that cast a shadow over all reality. Upon rejecting that dogma, my life became a search to replace that truth. I’ve looked for it by immersing myself in the natural world and exploring my relationship with it through paint. My landscape painting practice has brought me a wealth of experiences; however, it has not given me an answer that fills the void of my upbringing. My thesis paper is an account of the questions, research, and paintings that surround my search. Nothing, it turns out, is absolute. There is a beauty …

Old Invisible Presence: Nonhuman Intelligence And Artificial Nature In A Coast Of Trees By A. R. Ammons And S*Perm**K*T By Harryette Mullen, Miles Jochem

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Diy Beef: Why Some Montana Ranchers Are Gambling On Direct Marketing, Izaak John Opatz

Graduate Student Theses, Dissertations, & Professional Papers

Ranchers in Montana direct market their cattle for several reasons, but many have done so to relieve their dependence on the national beef market, which critics claim is unfairly controlled by a consolidated packing industry. Pandemic-related disruptions to the U.S. meat supply chain created uncertainty and exposed vulnerabilities for producers and consumers that drove a renewed interest in direct-marketed beef. Casey Buffington ranches near Chester, MT, and began direct marketing his cattle in 2019 to assert more control over his market and create more profit for his ranch. In telling Buffington’s story, this narrative explores how beneficial direct marketing can …

Facing The Climate Crisis: The Plaintiffs Of Held V. Montana Find Agency And Voice, Richard H. Forbes

Graduate Student Theses, Dissertations, & Professional Papers

16 young people, in a lawsuit titled Held v. Montana, are suing the state of Montana on the grounds that its state energy policy contributes to climate change, harming them physically and psychologically and violating their constitutional rights to a clean and healthful environment. This project explores the plaintiffs’ perspectives on the lawsuit, describes how their involvement is changing their relationships to their own climate-related mental health and explains how their psychological concerns reflect larger societal issues related to climate change.

Meta-Analysis Of Scent Detection Canines And Potential Factors Influencing Their Success Rates, Molly Marie Jaskinia

Graduate Student Theses, Dissertations, & Professional Papers

Objective: This is a meta-analysis focused on the success rates of scent detection canines and potential factors that could influence their accuracy. A series of statistical analyses were conducted to determine if certain demographic factors, such as the dog’s gender, age, and breed, have an effect on a scent dog’s accuracy during a search. Or if more circumstantial factors, like the dog’s level of experience in scent work, the type of target scent, and their handler’s awareness of the target’s location, affect the outcome of the search.

Materials and Methods: A dataset was created from 37 different articles consisting of …

An Examination Of The Food System, Foodscape, Dietary Patterns, And Accolated Health Outcomes Of Salish People Within The Confederated Salish And Kootenai Nation, Joshua William Brown

Graduate Student Theses, Dissertations, & Professional Papers

Often an individualistic, consumerist strategy is promoted as the solution to decrease the growing prevalence of diet-related diseases. Unfortunately, this logic is ahistorical and apolitical while privileging pathological individualism, capitalistic consumerism, and prevalent diets within the United States. This reasoning fails to recognize diet construction across time by ideologies, policies, and practices. Such an outlook misses the reality that many people cannot escape the grip of the modern, pervasive, ultra-processed food system.

Several Native American populations find themselves plagued with high rates of diet-related diseases. Standard mantra shoulders these communities with their plight, often framing the discourse as personal responsibility …

Synthesis And Characterization Of Novel Biomaterials: The Use Of Hyaluronan For Otologic Applications And Silk Fibroin For Sensing Applications, Elizabeth Marie Arrigali

Graduate Student Theses, Dissertations, & Professional Papers

We have developed four projects using biomaterials including hyaluronan (HA) and silk fibroin (SF) for biomedical applications. First, we investigated an HA-antioxidant conjugate for topical application in sensorineural hearing loss (SNHL). Drug delivery to the ear is very difficult. Systemic approaches usually result in low concentration to the ear and topical approaches are difficult with the two anatomical membranes of the ear: the tympanic membrane (TM) and the round window membrane (RWM). We have chosen an HA-based drug conjugate as HA has been shown to permeate through anatomical membranes like the skin. Our hypothesis was that an antioxidant like DMethionine …

Traditional Ecological Philosophy, Michael J. Desrosier

Graduate Student Theses, Dissertations, & Professional Papers

A collection of creative essays that span a range of topics centered on Indigenous environmental wisdom.

Sodium Hyaluronate Based Drug Delivery To The Outer And Inner Ear, Emma Barrett-Catton

Graduate Student Theses, Dissertations, & Professional Papers

We have developed two projects using sodium hyaluronate (HA)-based systems for drug delivery to the ear. First, we investigated an HA-based hydrogel for use as a single use antibiotic treatment for otitis externa. Otitis externa, also known as outer ear infection, is a frequent affliction in both humans and animals. The most prevalent treatment for otitis externa is ear drops, but it is difficult to adhere properly to this treatment, causing poor patient compliance and the potential for complications. As a result, we have developed an HA-based hydrogel for use as a single application treatment for otitis externa to increase …

Warmth Of The Sun, Drake M. Gerber

Graduate Student Theses, Dissertations, & Professional Papers

Warmth of the Sun, is a reflection on personal experiences I’ve had in the landscape while living in the Northwest. This curated experience is an attempt to capture my sincerity towards a place and hold onto that feeling. I intend to share faded memories of personal experiences through enigmatic sculptures to make the viewer look a bit closer at these objects and see the landscape in a new way. This paper explores thoughts on the idea of place, material, process, contemporary influences, and the experiences that inspired this body of work.

Between Tradition And Transformation: A Feminist Investigation Of The Role Of Pastoral Women Within Tanzania's Integrated Environment And Development Landscape, Kelli Erin Rogers

Graduate Student Theses, Dissertations, & Professional Papers

Pastoral women hold pivotal social and environmental roles within their communities. Equally and actively engaging pastoral women in processes to conserve and sustainably use rangeland resources has therefore become an important focus for integrated environment and development intervention. In northern Tanzania, pastoral women find themselves at the center of gender equality efforts, which attempt to translate gender and environment theory into conservation action that elevates pastoral women’s historically unheard voices. Along the way, particular global narratives have positioned pastoral women alternately as passive beneficiaries or as powerful allies in biodiversity conservation and natural resource management. Although the importance of integrating …

Modifying Lysosomal Cholesterol Or Potassium Channel Activity Prevents Silica-Induced Inflammation, Rebekah Louise Kendall

Graduate Student Theses, Dissertations, & Professional Papers

Chronic inflammation contributes to a number of diseases, driven by NLRP3 inflammasome activity and the lack of resolution. Silicosis is one such disease, brought on by the unresolved inflammation caused by inhaled crystalline silica particles of sufficiently small size. These particles are taken up by alveolar macrophages to protect the fragile alveolar spaces. Silica particles interact with phagolysosomal membranes through nearly free silanol moieties and disrupt the lipid order of the lysosomal membrane thereby causing permeabilization. This permeabilization (LMP) leads to the release of proteases including Cathepsin B that promote the assembly and activation of the NLRP3 inflammasome. The inflammasome …

Insights From The Environment: Unveiling Methodological Biases And The Impacts Of Beavermediated Environmental Variation On Amphibian-Parasite Dynamics, Leah Marie Fischer

Graduate Student Theses, Dissertations, & Professional Papers

Environmental variation plays an important role in shaping patterns of parasite and pathogen infections within ecosystems and populations. Effective management of wildlife diseases hinges on the detection of parasites and pathogens, followed by the identification of trends in infections that can be used for predicting their spread and implementing control measures. Beavers are ecosystem engineers and keystone species that serve as important sources of environmental variation. In North America, beavers are promoted for the conservation of imperiled taxa like amphibians which are facing declines driven by habitat loss, parasites, and pathogens. Beavers create diverse habitats that attract amphibians, but these …

Seeking A Common Theme: A Study Of Ceramic Effigy Artifacts In The Pre-Hispanic American Southwest And Northern Mexico Using Computer Image Pattern Recognition And Phylogenetic Analysis, Lee Roger Tallier Jr.

Graduate Student Theses, Dissertations, & Professional Papers

Effigy artifacts are found throughout the Pre-Hispanic American Southwest and Northern Mexico (PHASNM), as well as in other cultures around the world, with many sharing the same forms and design features. The earliest figurines within the PHASNM were partial anthropomorphic figurines made from fired clay, dating to between A.D. 287 and A.D. 312 (Morss 1954:27). They were found in a pit house village of Bluff Ruin in the Forestdale Valley of eastern Arizona, and they appeared to be associated with the Mogollon culture. The temporal range of the samples examined in this study is from approximately 200 A.D. to 1650 …

Does Behavioral Synchrony Extend To Robots? Children’S Sharing, Mentalizing, And Social Attributions To Synchronous Others, Sarah E. Sweezy

Graduate Student Theses, Dissertations, & Professional Papers

Behavioral synchrony, or the act of keeping rhythm with others, has many implications on children’s interactions with others, from prosocial behaviors to feelings of affiliation with synchronous people. However, little is known about how behavioral synchrony applies to non-human entities. From robots leading movement-based learning in classrooms or being engaged in cultural settings, a new series of questions arise for how children view synchronizing with non-human others. The current study aimed to investigate how broadly synchronization effects would extend in a child sample: Are behavioral synchrony effects limited to synchronizing with humans or do they extend to social agents (e.g., …

Black Deathways: An African Methodist History, 1829-1916, Christina M. Varney

Graduate Student Theses, Dissertations, & Professional Papers

This study will focus on the transformations of death practices and the shifting roles of death workers from 1829-1916. The Postbellum portion of this study will focus on African Methodist communities in the states of North Carolina, South Carolina, Georgia, Alabama, and Tennessee as practices and people moved West to the states of Montana, Colorado, and California. These practices experienced changes as a result of rising literacy rates, the establishment of Black churches, and from the movement of Black people within the South. More changes occurred with the creation of mutual aid societies and Black-owned funeral homes. Black funeral directors …

Variation In Body Composition In Deer Mice: The Biogeography And Ecophysiology Of Energy Allocation, Cole Joseph Wolf

Graduate Student Theses, Dissertations, & Professional Papers

Body composition, the percent of lean and fat mass, is a snapshot of an individual’s energetic state at a moment in time. Wild organisms should allocate energy to optimize fitness, so tracking changes in body composition provides a window into how priorities may shift throughout the year or across environments. While seasonal variation in body composition is wellcharacterized in systems such migrating birds (Scott et al. 1994) and hibernating mammals (Hellgren 1998), much less is known about how this trait varies across species ranges and thus how organisms modify their body composition and to meet local environmental challenges. For my …

Predicting Mountain Lion Resource Selection And Abundance In North America, William Connor O'Malley

Graduate Student Theses, Dissertations, & Professional Papers

The relationship between habitat quality and density is well documented in lower trophic levels but to what extent it can be extended to higher trophic levels is unknown. I tested the relationship between habitat quality, home-range size and density using a wide-ranging, well-studied, top carnivore, the mountain lion (Puma concolor). First, I created a second-order resource selection function (RSF) for mountain lions in their current North American range using GPS collar data from 476 individuals in 20 study sites and remotely-sensed landscape data. I used the RSF and home range estimates derived from collared animals to quantify mountain …

Connecting Schools To Communities With Student-Produced Multimodal Compositions, Eric M. Wright

Graduate Student Theses, Dissertations, & Professional Papers

In this paper, I use research on embodied cognition to support learning objectives for a unit that I’ve designed to increase reading comprehension, promote digital citizenship, and provide scaffolding for students to produce digital multimodal compositions. The unit is aligned to English Language Arts Common Core and International Society for Technology in Education (ISTE) standards. I conclude with an argument for schools to focus on transparency over accountability and propose using digital literary magazines that contain the students' multimodal compositions to connect with communities.

Site 48ye2550: Late Paleoindian Occupation At Grebe Lake, Yellowstone National Park, Wyoming, Travis Kern

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

“How Do We Carry All These Stories On Our Backs?” An Investigation Of Violence In Native American Literature As Seen In The Works Of James Welch, Joy Harjo, & Louise Erdrich, Madison R. Hinrichs

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Monstrous Oil: Theorizing Petromodernity's Monsters, Madalynn Lee Madigar

Graduate Student Theses, Dissertations, & Professional Papers

Petroleum, a primary global energy resource, serves as a foundation of our contemporary society. However, the pervasive influence of oil as substance, commodity, and industry in our petromodern lives often goes unrecognized. In the present moment of biogeocultural crisis surrounding fossil fuels, recognizing and understanding our multifaceted engagements with petroleum is critical. This thesis contributes to the growing field of Petrocultural Studies by considering the conceptualization of petroleum through the associated tropes and figure of the monster. Through the petromonstrous, a term that encapsulates the massive scale, haunting effects, and human-other entanglements of petroleum, cultural attitudes and anxieties about oil …

Seedy Business: Unveiling Fruit-Frugivore Interactions In Loango National Park, Gabon, Diandra Mary Lewis

Graduate Student Theses, Dissertations, & Professional Papers

Fruit-frugivore interactions within forest ecosystems are intricate and are critical determinants of community structure, function, and composition. Increasing anthropogenic impacts on biodiversity in general and forests in particular highlight the need to better understand these plant-animal relationships. This thesis focuses on connections between fruit-bearing plants and the animals that eat their fruits in a relatively undisturbed rainforest in Gabon. The work combines two studies: one scrutinising fruit trait clustering, and the other delving into the difference between using dispersers versus consumers in seed dispersal networks.

In chapter 1, we focused on fruit traits and how they group together in order …

Liberal Men, Rational Kings: The Democratization Of Sovereign Individualism, Austin Daniel Ladd

Graduate Student Theses, Dissertations, & Professional Papers

Theoretical traditions are reactionary insofar as they are attempts to remedy deleterious conditions generated by certain political, cultural, and economic situations characteristic of a particular polity at a particular time. Using this lens, I investigate the principles of classical liberalism and suggest that they are specifically designed to solve the problems that animated the world of divine right, essentially functioning as transitional mechanisms pulling society towards liberal social contract regimes and away from antiquated feudal institutions and absolute monarchy. I craft a narrative that demonstrates that the main problem all of them coalesce to solve is individualism which, under divine …

Evolution And Diversification Of The Novel Chlorophyll D-Based Photosynthetic Apparatus, Nikea Jonelle Ulrich

Graduate Student Theses, Dissertations, & Professional Papers

The origin of novel traits is an important evolutionary process that generates biological diversity. However, we rarely know the underlying mechanisms of diversification following the innovation of a novel trait. Over two billion years ago, the innovation of chlorophyll (Chl) abased photosynthesis by cyanobacteria sparked the oxygenation of Earth, setting the stage for the emergence of multicellular life. Chl a was subsequently acquired by diverse algae and plants, and in the process, these organisms diversified their light-harvesting systems to absorb a range of visible wavelengths (400-700 nm) (1). Due to the ancient origins of Chl a, however, it is difficult …

Impacts Of Climate And Wildfire On Western Larch Regeneration, Spencer T. Vieira

Graduate Student Theses, Dissertations, & Professional Papers

Fire plays a critical role in forests of the western United States (US), but as wildfire and climate deviate from historical patterns, increasing fire activity may significantly alter forest ecosystems. To understand the impacts of changing climate and wildfire activity on conifer forests, we studied the impact of wildfire and annual post-fire climate on western larch (Larix occidentalis) regeneration. We destructively sampled 1651 seedlings from 57 sites within 32 fires that burned at moderate or high severity from 2000-2015 in the northwestern US. Using dendrochronological methods, we estimated germination years of seedlings to calculate annual recruitment rates. We …

Genetic And Environmental Contributions To Wolbachia-Induced Cytoplasmic Incompatibility, Kelley Van Vaerenberghe

Graduate Student Theses, Dissertations, & Professional Papers

Maternally-transmitted Wolbachia infect the cells of most insect species, but their frequencies in host populations vary. While much of their success can be attributed to their ability to manipulate host reproduction, these manipulations are context-dependent, varying due to several biotic and abiotic factors. Wolbachia’s most common manipulation, cytoplasmic incompatibility (CI), is a conditional sterility phenotype where male-female host compatibility depends on their infection status. Specifically, CI occurs when infected males produce modified sperm that cause increased embryonic lethality unless the female carries a similar infection. Rescuing their eggs from CI increases the relative fitness of infected females, promoting Wolbachia spread …

Wayfinding, Kalani N. Padilla

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.