Digital Commons Network^™

Bridging The Gap: Where Indigenous Knowledge And Western Science Come Together To Shape Environmental Stewardship, Bowman Leigh

Graduate Student Theses, Dissertations, & Professional Papers

In the era of climate change, humans are grappling with how to ensure that natural resources exist into the future. For millennia, Indigenous people have actively managed the environment, drawing upon deep connections to the land passed down through generations. The Western worldview, on the other hand, sees humans as separate from nature — an attitude that has led to many of the environmental crises we see today.

This portfolio examines places and programs where Western science and Indigenous knowledge (IK) or traditional ecological knowledge (TEK) come together to shape environmental stewardship. Western science and IK/TEK are inherently different ways …

Fathmm: Frameshift Aware Translated Hidden Markov Models, Genevieve Krause

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Distal Sibling Grief: Exploring Emotional Affect And Salience Of Listener Behaviors In Stories Of Sibling Death, Margaret C. Brock

Graduate Student Theses, Dissertations, & Professional Papers

Communicated Narrative Sense-Making (CNSM) theory is used as a theoretical framework to understand the storytelling surrounding a sibling’s death years after the loss. Analysis of 174 narratives from individuals whose siblings died five or more years ago revealed that a neutral tone, rather than the use of positive or negative affect, was predominant in this retrospective storytelling. When affect was present, it was more likely to be negative than positive. However, positive affect was associated with an individual’s satisfaction with life when it was present. The neutrality and frequency of retrospective storytelling among distally bereaved siblings in this study may …

Voices Of The Often Unheard: The Environmental Impacts Of Catastrophic Wildfire Events On Individuals With Developmental Disabilities, Mary Madison Mckenzie

Graduate Student Theses, Dissertations, & Professional Papers

The Thomas Fire for a time was the largest wildfire in California history, burning 281,893 acres and destroying 1,063 structures. Within three years, the August Complex Fire, at 1,032,649 acres, almost quadrupled that record. Climate related disasters such as these have impelled social science researchers to heed calls for a paradigm shift in understanding the risks climate change poses to the social world, in particular, disaster risks for vulnerable groups. Existing research tends to focus on disasters such as hurricanes, featuring risks for vulnerable populations by race, class, and/or individuals with disabilities in general, but not for individuals with developmental …

Catch My Drift? Perceptions And Experiences Of Pesticide Contamination Of Organic Crops In Montana, Sarah Rodgers

Graduate Student Theses, Dissertations, & Professional Papers

Pesticide drift and inadvertent contamination pose particular risks to organic production. Some organic producers have lost their crops, certification, and/or organic markets because of contamination events. Through this thesis research, I explain the perceptions and experiences that certified organic farmers in Montana have about drift and inadvertent pesticide contamination. I conducted semi-structured interviews with eleven certified organic farmers from various regions of Montana. Along with one-on-one interviews with organic farmers, interviews with industry and regulatory officials were conducted to better understand the policies and procedures that control what happens when drift occurs at the state level. Industry and regulatory official …

Genetic Rescue Of Isolated Cutthroat Trout, Donovan Alexander Bell

Graduate Student Theses, Dissertations, & Professional Papers

Anthropogenic habitat destruction has isolated innumerable populations that now face increased extinction risk due to demographic and genetic factors. Although often the best strategy, restoring connectivity can be challenging or even harmful. Such is the case for westslope cutthroat trout (Oncorhynchus clarkii lewisi; WCT) in the Missouri River basin, which are limited to completely isolated populations. Nonnative species threaten WCT in connected watersheds and barrier removal could be detrimental. My dissertation examines trade-offs and strategies for the management of isolated WCT. I first examined how nonnative trout species and climate change influence the distribution of WCT using a multispecies, dynamic …

Identifying Skeletal Trauma Markers Associated With Intimate Partner Violence (Ipv), Haley K. Omeasoo

Graduate Student Theses, Dissertations, & Professional Papers

Objectives: This is a validation study of Biddle (2019), where much of the same materials are used, with the addition of new data from other databases to include more Native American and minority samples. A comparison database will also be analyzed against this data, with known cases of live individuals assaulted and assessed by health officials, some in IPV situations. All data is analyzed to discover which fracture locations are most common in IPV situations and which ethnic, sex, and age groups are most affected. Most fractures analyzed are those of the maxillofacial area, concentrating on the Zygomaticomaxillary Complex (ZMC) …

Alternative Splicing Regulates The Innate Immune Response To Viral Infection, Luke A. White

Graduate Student Theses, Dissertations, & Professional Papers

Rift Valley fever virus (RVFV) is a mosquito-borne RNA virus that infects humans and livestock in sub-Saharan Africa and the Arabian peninsula, causing disease ranging from a mild flu-like illness to liver damage, blindness, hemorrhagic fever, death, and, especially in livestock animals, high rates of abortive pregnancies. There is no approved vaccine for RVFV, and as a disease with a high rate of spread that causes severe illness, it is listed as a Category A pathogen by the USA CDC. A better understanding of RVFV’s molecular virology will be instrumental to combating RVFV as climate change causes its mosquito host …

New Interdisciplinary Research At 48pa551: Land Tenure And Subsistence Strategies Among Middle Holocene Rocky Mountain Hunter-Gatherers, Ethan Patrick Ryan

Graduate Student Theses, Dissertations, & Professional Papers

This dissertation studies land tenure and resource procurement strategies among Middle Holocene hunter-gatherers in the Greater Yellowstone Ecosystem (GYE). The research provides a better understanding of a stratified archaeological site on the eastern flank of the Yellowstone Plateau, 48PA551, a crucial location for winter resource procurement. Geophysical survey, collection’s research, obsidian sourcing, and stable isotope analysis are all used to test theoretical models of social conditions and hunting strategies during the harsh winters of the mountainous environment of northwest Wyoming. Site 48PA551 has already proven to contain evidence for a unique Middle Archaic adaptive strategy, being one of the only …

Subfamily Clustering Using Label Uncertainty (For Transposable Element Families), Audrey M. Shingleton

Graduate Student Theses, Dissertations, & Professional Papers

Biological sequence annotation is typically performed by aligning a sequence to a database of known sequence elements. For transposable elements, these known sequences represent subfamily consensus sequences. When many of the subfamily models in the database are highly similar to each other, a sequence belonging to one subfamily can easily be mistaken as belonging to another, causing non-reproducible subfamily annotation. Because annotation with subfamilies is expected to give some amount of insight into a sequence’s evolutionary history, it is important that such annotation be reproducible. Here, we present our software tool, SCULU, which builds upon our previously-described methods for computing …

Combined Effects Of Temperature And Heavy Metals On The Performance Of The Giant Salmonfly., James Frakes, Amanda Andreas, Benjamin P. Colman, Aurthur Woods

Graduate Student Theses, Dissertations, & Professional Papers

In many freshwater ecosystems, communities of aquatic insects are facing the combined stresses of warmer waters due to climate change and increased exposure to heavy metal toxicants. Although each stressor may threaten aquatic insects independently, they also likely interact in important ways to affect insect physiology and performance. Here we investigate this potential interaction using two populations of aquatic nymphs of the giant salmonfly, Pteronarcys californica, collected from adjacent rivers in Montana: naïve individuals from Rock Creek, a relatively pristine stream, and individuals from the Upper Clark Fork River, which has a history of heavy metal pollution and higher …

Facing The Fire - Challenges And Triumphs Of Western Firefighters In A Changing Climate, Mak Sisson

Graduate Student Theses, Dissertations, & Professional Papers

The American West sits at a dangerous position in the age of climate change. Wildfires burn hotter, longer, and cover more area than ever measured. Decreased snowpack, early spring run-off, a glut of built-up timber in parks and public lands, and longer droughts all build upon one another, and it just takes one spark to start a raging wildfire that devastates a community. As such, a firefighting force is needed to deal with this changing landscape.

However, that force is dwindling, especially at the federal level. A reported 20% of wildland firefighting positions are vacant, and the Bureau of Land …

Keeping What You Sow: Intellectual Property Rights For Plant Breeders And Seed Growers, Paulina B. Jenney

Graduate Student Theses, Dissertations, & Professional Papers

Over the last 150 years, the food system in the present-day United States has undergone a transformational restructuring, from a diversified, decentralized, network of farmers and seed growers, to one in which the majority of crop production is controlled by a few industrial corporations. The consolidation of power has been under-girded by the application of intellectual property rights (IPR)—especially utility patents—to plant varieties and genetic traits, which are leveraged to exclude small-scale seed growers from accessing quality germplasm. Patents and restrictive licensing agreements recapitulate colonial structures by appropriating common and traditionally community-held resources for profit, and by creating reliance on …

Where Should Conservation Draw The Line And When Should It Push Forward, Jessica L. Mejia

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Evaluating The Management And Consequences Of Hybridization Between Nonnative Rainbow Trout And Native Westslope Cutthroat Trout, Anthony James Dangora

Graduate Student Theses, Dissertations, & Professional Papers

The introduction of nonnative fish is a major driver in the decline of native fish species. Nonnative rainbow trout (Oncorhynchus mykiss; RBT) introduced into the native range of westslope cutthroat trout (O. clarkii lewisi; WCT) have led to the introgressive hybridization between these two species. This widespread hybridization is a primary threat to the long-term persistence of WCT as it can cause population-level genomic extinction. Since there are no set management solutions for hybridization, there is a need to evaluate the different conservation approaches to ensure the persistence of WCT populations. Additionally, beyond propagule pressure, the array of drivers that …

Is Growing Food Wasting Water? Stories From A Surge Of Groundwater Regulations In California, Abigail Jean Lauten-Scrivner

Graduate Student Theses, Dissertations, & Professional Papers

This long-form feature story examines how the nascence of California’s new era of groundwater regulation is playing out for the farmers, families and agencies who must adapt to a sweeping new law against the backdrop of climate change.

California became the last state in the west to adopt a statewide management plan for the invaluable natural resource when it first embarked on a path toward groundwater sustainability in 2020. Known as the Sustainable Groundwater Management Act (SGMA), the 20-year plan requires California’s most depleted groundwater basins to become sustainable by 2040.

When SGMA matured in 2020, California’s next drought began …

The Contrasting Physiological Mechanisms Of Two Distinct Migratory Strategies, Joely Gabriel Desimone

Graduate Student Theses, Dissertations, & Professional Papers

Migration allows animals to use resources that vary in time and space. The predictability of this resource variation underlies different migratory strategies. Obligate migrants, with predictable movements, use resources that covary with the seasonal phenology of temperature or rainfall patterns. Facultative migrants, with unpredictable timing and destination of movements, rely on unpredictably variable resources. In this dissertation I explore the physiological changes birds undergo in preparation for obligate vs. facultative migratory flight. Hormones facilitate rapid organismal responses to environmental and internal information, making them an ideal physiological system to understand mechanisms controlling migratory behavior. I focus on corticosterone (CORT), a …

Tracing Migration And Social Stratification In Subadults At The Archaeological Site Of Convento: A Preliminary Strontium Isotopic Analysis, Holli Kaye Mcdonald

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Relationships Between Water, Sediment, Basal Resources, And Aquatic Insects In A Mine-Contaminated River On A Longitudinal And Habitat Patch Scale, Chelsea A. Wisotzkey

Graduate Student Theses, Dissertations, & Professional Papers

It is well established that aqueous exposure and dietary exposure both lead to the accumulation of metals and metalloids in aquatic organisms living in a contaminated environment, but the relative contribution of each remains unclear. To examine how a contamination gradient affects patterns of metal(loid)s among periphyton, BPOM (benthic particulate organic matter), water, and sediment, we collected samples from multiple sites across a 210km stretch of the mine-contaminated Upper Clark Fork River, Montana. To investigate metal(loid) accumulation patterns among basal resources and aquatic insects, we collected samples of periphyton, BPOM, and larval insects from discrete habitat types at a single …

Spermatogenesis Molecular Evolution In Murine Rodents, Emily Emiko Konishi Kopania

Graduate Student Theses, Dissertations, & Professional Papers

Reproductive traits are fascinating from an evolutionary perspective because they are necessary for individuals to produce offspring and increase their evolutionary fitness. Given the essentiality of reproduction to fitness, genes involved in reproduction may be expected to be highly conserved. However, some genes involved in reproduction evolve very rapidly, including many spermatogenesis genes. This rapid evolution may result from intense sexual selection acting on reproductive traits, particularly in species where females mate multiply thus creating the potential for sperm competition. In addition to sexual selection, other evolutionary forces may shape rapid spermatogenesis evolution, including genomic conflict and relaxed pleiotropic constraint …

Spatial Behavior, Foraging, And Population Dynamics Of A Subarctic Ungulate, Elizabeth (Libby) Parr Williamson Ehlers

Graduate Student Theses, Dissertations, & Professional Papers

The concept of density-dependence is foundational to our understanding of the ecology and management of large herbivores. As the abundance of large herbivores increases, competition for high-quality resources increases and animals select for lower-quality foods potentially resulting in reduced vital rates that cause declines in population growth. What remains unclear is how foraging at finer scales, like the ‘bite’, translates to demography. This is difficult because it’s challenging to scale bite-level foraging to population-levels. I test the fine-scale foraging mechanisms of density dependence in a large subarctic herbivore, Barrenground caribou (Rangifer tarandus granti). The nutritional landscape for arctic herbivores is …

The Syndemic Landscape: A New Paradigm For Montana Suicide Prevention Grounded In Agricultural Renewal, Emory Chandler Padgett

Graduate Student Theses, Dissertations, & Professional Papers

Montana has had one of the highest suicide rates in the nation for half a century, and since 2000, it has risen almost 50%. Despite suicide’s alarming persistence in the state, there has been minimal academic study of suicide or mental health specifically in Montana, so this thesis attempts to answer a few questions: Why does Montana have such a high suicide rate? Is there something culturally, historically, or socially unique about Montana that contributes to suicide? Are current prevention efforts helpful, harmful, or lacking? Could a consideration of culture and land benefit an understanding of suicide in Montana? What …

Invasive Earthworms In The Crown Of The Continent System And Implications For Land Management, Meghan Elizabeth Scott

Graduate Student Theses, Dissertations, & Professional Papers

The United States contains invasive earthworms originating from Europe and Asia; the majority are European lumbricids. Direct introduction occurs primarily through human activity and, once established, earthworm populations are difficult to address. When exotic earthworms engage in bioturbation, they negatively alter subterranean food webs and nutrient cycling by disrupting soil layering systems. The most prominent form of physical alteration is the change and removal of the topmost organic layer. This disruption is associated with altered nitrogen and carbon cycling, as well as altered forest floor plant communities.

The Crown of the Continent ecosystem is located in southwestern Alberta, southeastern British …

Moccasin Economics: Entangled Museum Stories Of Niitsitapi Women, Labor, And Footwear, Michaela Ann Shifley

Graduate Student Theses, Dissertations, & Professional Papers

This dissertation emphasizes how anthropologists can use museum collections as anthropological data banks (Sturtevant 1973) to uncover the unwritten histories of objects, people, and cultures. I show how museum collections are repositories for the untold stories of Native women’s economic histories and how objects embody women’s critical contributions to the economic, spiritual, and cultural survival of their communities throughout time. To reveal the complex, hidden labor processes involved in historical and contemporary moccasin-making, I draw on interviews with contemporary Niitsitapi moccasin-makers, as well as object-based analyses of 109 pairs of moccasins from five museum collections and numerous archival documents and …

A Non-Deterministic Deep Learning Based Surrogate For Ice Sheet Modeling, Hannah Jordan

Graduate Student Theses, Dissertations, & Professional Papers

Surrogate modeling is a new and expanding field in the world of deep learning, providing a computationally inexpensive way to approximate results from computationally demanding high-fidelity simulations. Ice sheet modeling is one of these computationally expensive models, the model used in this study currently requires between 10 and 20 minutes to complete one simulation. While this process is adequate for certain applications, the ability to use sampling approaches to perform statistical inference becomes infeasible. This issue can be overcome by using a surrogate model to approximate the ice sheet model, bringing the time to produce output down to a tenth …

Combinatorial Administration Of Synthetic Tlr4 Agonist Ini-2002 And Novel Mincle Agonist Um-1098 Delivered Via A-Snps Results In Synergistic Il-1Β Production In Human Primary Cells And Enhances Th1 And Th17 Responses In Vivo, Grace D. Jones, Asia Marie Stephanie Riel, Alexander Riffey, Cassandra Buhl

Graduate Student Theses, Dissertations, & Professional Papers

Tuberculosis (TB) kills more people each year than any infectious disease worldwide with recent exception of SARS-CoV-2. Though the Bacille Calmette Guerin (BCG) vaccine confers protection against severe extrapulmonary forms of TB, there is no licensed vaccine for the prevention of pulmonary tuberculosis. The strongest correlate of protection against pulmonary tuberculosis is Th1/Th17 biased cell mediated immunity. Several candidates for TB vaccine adjuvants have shown Th1/Th17 polarizing capacity in clinical trials including Mincle agonist trehalose dibehenate (TDB) and TLR4 agonist monophosphoryl lipid A (MPL). Furthermore, combinatorial administration of MPL and TDB formulated in dimethyldioctadecylammonium (DDA) liposomes has been previously reported …

Rethinking Rare: Novel Approaches To Rare Species Monitoring And Conservation, Jessie Deanne Golding

Graduate Student Theses, Dissertations, & Professional Papers

Conservation of rare species is widely valued and important for ecosystems. Unfortunately, many of the approaches to conserve rare species have been developed with common species (e.g., harvested species) which have larger populations and targeted objectives. Conservation of rare species is difficult in part because of problems created by scarcity and low information. With low information, learning leads to new questions and the utility of information in decisions can quickly become obsolete. Therefore, monitoring strategies that can adapt as well as provide information tailored to relevant decisions are needed. To address rare species monitoring, I developed a long-term monitoring approach …

The Evolution Of Morphological Diversity And Sexual Dimorphism In Stick And Leaf Insects, Romain Pascal Gilbert Eric Boisseau

Graduate Student Theses, Dissertations, & Professional Papers

How has the diversity of life forms come to be? This question is at the core of evolutionary biology and can be addressed at different scales: by studying the processes that drive modifications within populations of organisms generation after generation (microevolution), or by investigating patterns of changes on the tree of life over long periods of time (macroevolution). Understanding the ultimate drivers of morphological diversity eventually entails connecting microevolutionary processes with macroevolutionary patterns. My dissertation investigates the diversification of body and egg form and its drivers in a relatively small but particularly diverse insect order: the stick and leaf insects …

The Effects Humidity & Temperature Has On Dna Contamination During Storage, Samantha L. Ramey

Graduate Student Theses, Dissertations, & Professional Papers

Studies have been conducted on DNA cross-contamination throughout the criminal investigation process in order to evaluation the possibility that DNA from one sample could potentially influence the outcome of another. However, no published studies have examined the potential for contamination during the storage of genetic evidence after samples have been taken from crime scenes or suspects. This study is a continuation of a preliminary project, which examined storage drying time in relation to cross-contamination. The current study tested temperature and humidity for the potential of cross-contamination during storage prior to extraction. Prior to storage, 50 μl of male saliva was …

Grizzly Bear Attractant Policies In Montana: How Regulations, Recommendations, And Resources Differ Among And Between Recovery Areas, Kenneth J. Edmo

Graduate Student Theses, Dissertations, & Professional Papers

Edmo, Kenneth, M.S, Autumn 2022 Resource Conservation

Grizzly bear attractant policies in Montana: how regulations, recommendations, and resources differ among and between recovery areas

Chairperson or Co-Chairperson: Alexander L. Metcalf & Chad J. Bishop

Abstract

Grizzly bears (Ursus arctos horribilis) are a keystone species and play an important role in their environment. After near extinction, the U.S. Fish and Wildlife Service implemented a recovery plan of six recovery zones to increase grizzly populations. Although these efforts allowed grizzly bear numbers to increase, so too have human-grizzly bear conflicts, significantly challenging agencies in charge of bear management. A concern …