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 …

Damming Paradise: Public Power, Free Enterprise, And Tribal Sovereignty In The Mountain West In The Twentieth Century, Jacob T. Schmidt

Graduate Student Theses, Dissertations, & Professional Papers

“Damming Paradise” examines the transformation of the political economy of the Mountain West through the development of hydropower over the course of the twentieth century. Beginning with early attempts to regulate electricity marketing and dam construction, this thesis traces the development of a conservation paradigm which insisted upon full development of water resources and public ownership of hydropower facilities. The author then follows that development through the New Deal and Post War eras, focusing particular attention on the Kerr Dam (now Seli’š Ksanka Qlispe’ Dam) and Hungry Horse Dam on Montana’s Flathead River. “Damming Paradise” then examines the attempt to …

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 …

A Reynolds Number Based Sampling Technique For 3-D Vector Fields In Computational Fluid Dynamic Environments, Trent James Schweitzer

Graduate Student Theses, Dissertations, & Professional Papers

Effective visualization of unsteady, time-dependent vector fields in a virtual environment is not a trivial task. This is due to the fact that most visualization techniques require the user to have a prior understanding of how the vector field will behave to set the parameters used to create the visualization. In this thesis we will take air flow data from a computational fluid dynamic simulations to calculate the amount of turbulence (represented as Reynolds numbers) to identify regions of interest. We then calculate wind pathlines that will intersect with these points sampled from these regions. We address the issue of …

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 …

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 …

And The Busy World Is Hushed, Emily Elizabeth Collins

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Gigi, Helen Wesley Kapp

Graduate Student Theses, Dissertations, & Professional Papers

Francis’s grandpa taught her how to wrestle alligators. By the time Francis was sixteen, she could hold her own, but all it takes is one gator. Just one gator who almost gets the best of you, and suddenly you’ve got a dead animal; somebody’s getting stitches; you’re getting haunted by the ghost of the alligator you just killed; and your mom’s making you move to Charleston to attend a swanky prep school where the kids don’t wrestle gators, but surviving the gossip is even harder.

Are Risk Attitudes And Rainfall Variability Determinants Of Diversification? Evidence From Rondonia, Brazil, Brenna Swinger

Graduate Student Theses, Dissertations, & Professional Papers

Risk exposure and management are inherent to smallholder farmers. One of the risks they face is climate change. Climate change decreases rainfall, increases frequency of drought, adds heat stress to crops from higher temperatures, and leads to higher rainfall variability. The threat of rainfall variability causes higher production in some years and lower in others. Even if the average income remains the same, people’s welfare is reduced by the variability and the size of the loss will depend on their attitudes towards risk.

Diversification is one adaption strategy that may help reduce climate risk. Diversified farmers produce multiple types of …

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 …

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 …

Kid Gloves, Anne North Kolle

Graduate Student Theses, Dissertations, & Professional Papers

Kid Gloves is an excerpt from a novel in progress that follows the lives of three generations of women—Dorothy, Lydia, and Maisie—and explores the privileges and traumas they hold onto and pass down. The novel takes place in wealthy Baltimore society in the week leading up to Maisie’s debutante ball, but it is interspersed with stories from the past that inform the lives of the three women today.

Re-Modeling The Interior: Spatial Methods And Policy Revisions To Improve Inventory And Designation Of Blm’S Areas Of Critical Environmental Concern, Amy H. Katz

Graduate Student Theses, Dissertations, & Professional Papers

The Bureau of Land Management (BLM) manages a vast amount of public land in the western United States, most of which they currently manage for multiple uses. Specific conservation and management of these lands could mitigate climate change impacts and contribute to the global initiative to conserve 30 percent of lands and waters by 2030. Particularly, the agency can achieve this through more effective administration of Areas of Critical Environmental Concern (ACEC), a designation that is prioritized under the Federal Land Policy and Management Act (FLPMA). To do so requires updated regulations that set clear parameters around inventory and designation, …

In The Landscape Of Her Life, Susan M. Sinitiere

Graduate Student Theses, Dissertations, & Professional Papers

To reconcile perceptions of female expectations in light of realistic outcomes, the idealized domestic space where formality and dilapidation coexist with botanicals is the aesthetic of the autobiographical context of Seeds Once Sown. The ‘home’ melds together an acknowledgement of matriarchal influence that formed my identity as a homemaker and mother, but also serves as a place of independent contemplation on a mid-life passage through a seasonal change of life, now separate from domestic adherences.

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 …

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 …

Collaborating In Cattle Country: Developing A Collaborative Process To Protect The Ecological, Economic, And Cultural Integrity Of Ranching In The Northern Rockies, Emily Jochem

Graduate Student Theses, Dissertations, & Professional Papers

This paper explores the creation of a collaborative group that is being convened by Future West, a nonprofit organization based out of Bozeman, MT, to address issues surrounding the loss of ranchlands to alternative land uses in the Northern Rockies. Using literature and theory on collaboration this paper outlines a framework for the development of a collaborative group that includes seven ranchers as advisors to Future West in the development of their program. This framework includes the following elements:

1. A survey that was administered to each participant to assesses their ability to represent their community, and to gauge their initial …

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 …

The Molly Hootch Schools After 40 Years: Successes, Failures, And Opportunities, Jody Lynne Drew

Graduate Student Theses, Dissertations, & Professional Papers

This quantitative study was designed to understand the relationship between the variables of student attendance, educator experience and turnover, and student achievement at the Molly Hootch schools in rural Alaska in an effort to understand the current state of achievement according to data from 2002–2019 collected from the Alaska Department of Education and Early Development (AKDEED) database. Data revealed that Molly Hootch school attendance was at 90% and that proficiency among student dropped from 40% to 15% during the years under review. The researcher was not granted access to review further data that could provide more concrete answers to the …

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 …

Quantitative Social Science Methods, Social Networks, And Scalar Mismatches: Advancing Social-Ecological Systems Science Towards Adaptation And Transformation, Holly Kathleen Nesbitt

Graduate Student Theses, Dissertations, & Professional Papers

The adaptive capacity of social-ecological systems to maintain resilience or undergo transformation is increasingly important for navigating global change. Although social interactions and ecological disturbances are often cited as an essential element of social-ecological systems, social interactions are often undertheorized and simplistic, and the relative effects of both social and ecological processes are rarely considered in tandem. In this dissertation, I work towards advancing social-ecological systems research by highlighting opportunities for improved quantitative social science methods, using structurally explicit methods to evaluate the mechanisms underpinning social interactions, and characterizing scalar mismatches in a social-ecological system experiencing a regime shift. In …

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 …

Toward A Dialectical Account Of Nature, Georgia Rae Grimm

Graduate Student Theses, Dissertations, & Professional Papers

The protection of nature has been a central aim of environmentalism for well over a century. However, the concept of nature has been subjected to abundant critiques in recent literature, threatening the conceptual tenability of this goal. In this paper, I discuss why I find the concept of nature too valuable to dismiss and offer an account of nature that I believe remedies existent critiques. In Chapter 1, I recount arguments for the protection of nature and illustrate their dualistic underpinnings. In Chapter 2, I discuss issues with dualistic accounts of nature and demonstrate why Steven Vogel’s monistic alternative is …

Traversing Paradigms: An Environmental Journey To Body And Mind, Martin Ceja Mejia

Graduate Student Theses, Dissertations, & Professional Papers

Traumatic life experiences altered the way I perceive the world. As a result, I embark on a journey to reshape my relationship to self, the built and natural world; to environment. In this thesis I ask: How do I want to relate to the environment? Considering I am a doubly colonized agent, I also aim to decolonize my relationship to environment along the process. Therefore, this work aims to formulate a new, personal, relationship to environment through academic literature, history, psychology, Indigenous knowledge and science, and literary studies, among other fields of knowledge. This work is interdisciplinary in nature; life …