Digital Commons Network^™

Fungal Symbionts As Hidden Architects Of Forest Health: From Tree Immunity To Beetle Nutrition, Lorinda Sabin Bullington

Graduate Student Theses, Dissertations, & Professional Papers

Symbioses of fungi with trees and insects play outsized roles in forest ecosystems, influencing tree growth, defense, physiology, and nutrient cycling. While their functional contributions are widely recognized, they remain poorly understood. I integrate findings from three studies examining fungal interactions with conifers and with bark beetles to highlight their significance in tree resistance to disease, nutrient redistribution within the tree, and forest ecology.

First, I demonstrate that foliar fungal endophytes and ectomycorrhizal fungi, together and independently, can enhance resistance in Pinus monticola seedlings against Cronartium ribicola, the pathogen responsible for white pine blister rust. Symbiont inoculation induced host terpene …

"A Changed Understanding Of Our Present": Moby-Dick As Prophetic Ecological Activism, Katie Ann Schini

Graduate Student Theses, Dissertations, & Professional Papers

Moby-Dick: Or, The Whale is a classic of American literature, spanning multiple genres and remaining culturally relevant nearly 175 years after its original publication. Though on the surface Moby-Dick reads as an adventure story of a man who experiences the whaling industry firsthand, Herman Melville’s text continues to invite new generations of readership through the framework of the twenty-first century climate crisis.

In this thesis, I position Moby-Dick as a text that can be used to understand our modern society’s current dispositions of ecological grief. My thesis operates at the intersection of three main literary critical theories: ecocriticism, affect, and …

Acl Prevention Programming For Female Athletes, Julia Korklewski

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Adaptation And Resilience: How Beginning Farmers Navigate Land And Climate Crises In Western Montana, Kyla Ivana Fugate

Graduate Student Theses, Dissertations, & Professional Papers

Montana is home to a growing number of beginning and socially disadvantaged farmers (BSDFRs), yet they face substantial barriers to accessing resources, from farmland to federal farm support programs. Rising land prices and climate-induced drought further exacerbate the challenges that farmers already face, posing a “twin crisis” that is especially severe for beginning farmers who have operated their farms for fewer than 10 years. This research draws on ethnographic data, including 24 in-depth interviews with BSDFRs and five informational interviews with farm service providers in Western Montana. I find that while federal USDA programs support farmers on paper, they often …

Spatial And Temporal Patterns Of Nutrient Limitation In A Western Montana River, Matthew T. Nichols

Graduate Student Theses, Dissertations, & Professional Papers

Enhanced loading of nitrogen (N) and phosphorus (P) is pervasive in rivers around the world. As a consequence of nutrient-rich conditions, many well-lit rivers experience severe algal blooms, which threaten water quality and aquatic habitats. Nutrient enrichment in the upper Clark Fork River, located in western Montana, has increased the productivity of benthic algae, Cladophora glomerata, which routinely forms extensive blooms during summer growing seasons (July – September). Addressing eutrophication in rivers begins with identifying the nutrients that contribute toward algal productivity. I deployed nutrient diffusing substrates (NDS), collected bi-weekly surface water samples, and conducted algal surveys at four …

Better Together: Leveraging Existing Research To Evaluate Population Trends, Habitat Selection, And Species Interactions Of Mesocarnivores, Jordan Lee Heiman

Graduate Student Theses, Dissertations, & Professional Papers

Whether from human impacts, climate change, or extreme fires, landscapes around the world are rapidly changing (Foley et al. 2005, Grimm et al. 2008, Bowman et al. 2020). As these landscapes change, it is clear that many ecosystems and species are being negatively affected (Laliberte and Ripple 2004, Butchart et al. 2010, Freeman et al. 2018, Li et al. 2022). With an expanding number of species facing extinction risks, it is critical for agencies to know when and where to focus their limited resources and conservation efforts (Martin et al. 2012, Auerbach et al. 2014, Bal et al. 2018). To …

Penta Ef-Hand Protein Alg-2 Regulates Copii Activity At Eres In Response To Calcium Signaling, Jacob Ryan Lapka

Graduate Student Theses, Dissertations, & Professional Papers

Intracellular protein trafficking is critical for maintaining cellular homeostasis, relying on highly regulated vesicular transport pathways originating from the endoplasmic reticulum (ER). Central to this process is the COPII coat complex, which governs cargo export at ER exit sites (ERES) by selectively packaging secretory proteins into transport vesicles. Recent studies highlight the regulatory role of calcium (Ca²⁺) signaling at ERES, where the Ca²⁺-binding Penta EF-hand proteins ALG-2 and peflin modulate COPII coat dynamics and cargo sorting in a context-dependent manner. In Chapter 2, we show that knockdown of the Inositol 1,4,5-trisphosphate receptor-3 (IP3R-3) in normal rat …

The Creative Front, Aleksandr O. Barrett

Graduate Student Theses, Dissertations, & Professional Papers

Abstract

In this paper, I will discuss my thesis exhibition, The Creative Front, focusing on my materials, content, and context as they relate to each piece or body of work. This exhibition is the culmination of my work, which centers on my experience with the Russo-Ukrainian war. My work can be interpreted metaphorically, poetically, and directly through sculpture, installation, sound, and film. I am portraying very human stories and experiences from a full-scale war raging in Europe. My work is immersive, placing the viewer in an atmosphere of war, and conveying a sense of urgency and compassion for those who …

Investigating The Impact Of Aerial Firefighting On Rate Of Wildfire Spread, Lindsay Ann Wiard

Graduate Student Theses, Dissertations, & Professional Papers

Aerial retardant drops are widely used in wildfire suppression, yet their effectiveness in slowing fire spread remains difficult to quantify at scale. This study evaluates the impact of aerial suppression on wildfire rate of spread (ROS) using a modeling framework that incorporates both observed (real) and counterfactual (synthetic) drop locations from a sample of 62 wildfires in Oregon. Synthetic drops were generated to simulate a no-suppression baseline, allowing us to compare changes in ROS in the presence and absence of suppression. We trained two random forest classifiers: one using both real and synthetic drops (the full model), and another using …

Social, Ecological, And Anthropogenic Drivers Of Gray Wolf Vital Rates In Yellowstone National Park, Brenna Jo Cassidy

Graduate Student Theses, Dissertations, & Professional Papers

Populations of animals can be regulated by many factors, including food availability, anthropogenic influences, and social dynamics. Survival of adults and juveniles is one mechanism of population regulation, and these life stages can be influenced by different ecological pressures. In this dissertation, I investigate the ecological, anthropogenic, and social drivers of transboundary gray wolf (Canis lupus) vital rates in and around Yellowstone National Park. First, I evaluate the effect of variable harvest pressure on wolf survival and test whether anthropogenic mortality is compensatory or additive. Theory predicts that under densitydependent conditions, anthropogenic mortality should be offset by a corresponding reduction …

A Pilot Training Program For The Cultural Formulation Interview In School-Based Assessment, Jaida A. Lilly

Graduate Student Theses, Dissertations, & Professional Papers

School psychologists are responsible for promoting and maintaining an equitable, inclusive environment for all students to learn. For those who work in school settings, assessment of a student’s academic, mental health, and behavioral difficulties are often a significant component of school psychological practices. However, for various reasons, the assessment process can be flawed, and can unintentionally perpetuate systems of oppression in school-settings; this is especially true when working with children from culturally and linguistically diverse (CLD) backgrounds. Within culturally responsive assessment, conducting interviews is necessary for connecting with and effectively supporting the student and family. The Cultural Formulation Interview (CFI) …

Genomics Of Adaptation To Yellowstone’S Geothermal Mosaic In The Yellow Monkeyflower Mimulus Guttatus, Colette Sevier Berg

Graduate Student Theses, Dissertations, & Professional Papers

The push and pull between recombination and selection shapes the structure of adaptive genomic variation. By mapping the genetic architecture and genetic basis of traits, we can test theoretical predictions about the nature of adaptation on the landscape. Furthermore, investigating the genetics of repeated evolutionary transitions sheds light on the nature of parallel evolution: are adaptations constrained at the molecular level, or are there many genetic paths to the same phenotype? In this dissertation I explore the genetic and phenotypic variation in the yellow monkeyflower Mimulus guttatus, which occupies Yellowstone National Park’s complex geothermal mosaic. In Chapter 1, I identify …

Creating A Short-Form Label Avoidance Measure: A Psychometric, Julia Johanna Cameron

Graduate Student Theses, Dissertations, & Professional Papers

Stigma is a commonly reported barrier to receiving treatment for mental health concerns. One aspect of stigma, label avoidance, specifically addresses the stigma involved when individuals deny their status as having a mental illness and avoid institutions that may mark them as someone with a mental illness. Despite the importance of label avoidance for understanding treatment seeking, there does not currently exist a psychometrically sound measure of label avoidance. In order to address this gap, the present study used a revised and shortened form of a preliminary measure of label avoidance, the LAM-16, to collect psychometric data over two time …

Indigenous Placemaking, Colonial Placetaking, And Indigenous Data Sovereignty: Implications Of Environmental Data Collection On Tribal Lands, Paige Nizhonii Kya'iyo Johnson

Graduate Student Theses, Dissertations, & Professional Papers

This project investigates how Indigenous Data Sovereignty protocols apply to environmental data collected on Tribal lands by federal and state entities. The 2011 and 2014 flooding of the Missouri River and a need for further soil moisture data led the United States Army Corps of Engineers Omaha District to implement a Mesonet weather station monitoring network across the Upper Missouri River Basin (UMRB). Historically, the Army Corps of Engineers has not included Indigenous perspectives into their decision-making, and this has caused Tribes to be distrustful of partnerships with them. The UMRB monitoring network will span across the Upper Missouri River …

Advancing Wildfire Science Through The Application And Parametrization Of Process Based Fire Models, Anthony Albert Marcozzi

Graduate Student Theses, Dissertations, & Professional Papers

Computational models of wildfires are an important tool for fire managers and scientists. However, representing fuel inputs with sufficient detail for process-based fire models to accurately reflect observed fire phenomena while remaining computationally tractable is a major challenge. This dissertation advances wildland fire science by applying and parametrizing such models to investigate complex fire-fuel interactions across multiple scales.

A primary contribution addresses fine-scale fuel characterization through a novel voxel-based technique converting Terrestrial Laser Scan (TLS) point clouds into three-dimensional (3D) fuel representations. This method was evaluated by comparing simulated fire behavior in the Fire Dynamics Simulator (FDS), optimized using the …

Investigating The Impact Of Creativity In Specialized Learning Environments, Samantha Jo Stewart

Graduate Student Theses, Dissertations, & Professional Papers

Stewart, Samantha, M.A., Summer 2025 Teaching and Learning

Abstract

Chairperson: Dr. Jeb Puryear

This study investigates the impact of creative instructional strategies on student engagement and learning in a K–5 Structured Learning Program (SLP) serving students with behavioral challenges, trauma histories, autism, and twice-exceptionality (2e). A mixed-methods approach was used to compare two instructional periods: September to December, during which traditional teaching methods were used, and January to June, when flexible, creativity-based practices were introduced. Instructional shifts included increased student choice, multimodal tasks, and scaffolded opportunities for divergent thinking. Data sources included daily staff reflections, classroom observations, and student work …

America's Highest Stage: Utopians, Capitalists, And Trail Runners On Pikes Peak, Mitchell Morris

Graduate Student Theses, Dissertations, & Professional Papers

Since ancient times, Pikes Peak’s prominence on the land has endowed it with prominence in the minds of all who have lived around it. This ancient dynamic was reinforced in the nineteenth century by the famed expedition of Lieutenant Zebulon Pike in 1806 and the Pike’s Peak Gold Rush in 1858. Since then, the mountain has become a stage. Standing tall, visible from hundreds of miles around, and known from coast to coast, Pikes Peak is a platform that has attracted diverse historical actors to come and perform, elevate their endeavors to new heights, and demonstrate what they, and people …

Climate Goodbyes: Reporting On Loss, Change And The Human Response In Montana, Madeline Jorden

Graduate Student Theses, Dissertations, & Professional Papers

This portfolio explores how climate-driven environmental change intersects with long-standing tensions over natural resource management, tribal sovereignty, and rural identity in Montana. It consists of three stories: a historically low water year at Flathead Lake that intensified disputes between tribal dam operators and non-tribal waterfront homeowners; the first confirmed presence of invasive smallmouth bass in the Bitterroot River, signaling warming stream conditions and ecological disruption; and a political narrative from Colstrip, where coal industry workers cling to promises of revival amid economic and regulatory decline. Each piece illustrates how climate change acts not only as an environmental force but also …

Depth Distribution Of Liquid Water In Greenlands Firn Layer Based On L-Band Radiometry, A Snow Physics Model, And Machine Learning, Taylor D. Moon

Graduate Student Theses, Dissertations, & Professional Papers

The accurate estimation of the amount of meltwater retained by Greenland’s firn layer and its distribution over depth is essential for assessing both the current and future mass balance of the Greenland Ice Sheet. When meltwater infiltrates the firn, it exists as a quantifiable volume of liquid water, measurable as the one-dimensional liquid water amount, hereafter referred to as LWA. A promising new tool for estimating LWA is L-band passive microwave satellite radiometry, which can provide twice-daily estimates using empirical models of firn microwave emission. However, this method faces two primary limitations. First, retrievals are untested against field observations and …

Occupational Therapy Assistant Education: Exploring The Relationship Between Student Factors And Nbcot Examination Pass Rates, Micahela Parker

Graduate Student Theses, Dissertations, & Professional Papers

The purpose of this retrospective quantitative study was to examine the predictive ability of gender, age, GPA, attendance and both Level II fieldwork scores (Fieldwork One and Fieldwork Two) on first attempt NBCOT exam success. To practice as an occupational therapy assistant, an individual must complete an accredited occupational therapy assistant (OTA) program and pass the National Board for Certification in Occupational Therapy (NBCOT) exam. The NBCOT exam was developed to ensure entry-level occupational therapy assistants have the necessary knowledge to make safe and competent decisions.

The overarching research focus was to understand the extent of one or more of …

Authenticity Can Be Costly: Understanding School Belonging Among Latine Immigrant High School Students, Deborah A. Ith

Graduate Student Theses, Dissertations, & Professional Papers

School belonging is strongly associated with positive outcomes, including overall wellness and higher educational attainment. These outcomes can have lasting impacts on the lives of students. The construct of school belonging is defined as the degree to which a student feels accepted, supported, valued, and comfortable expressing themselves authentically within the school community. Students from culturally and linguistically diverse backgrounds, especially recent immigrants, often have experiences within the school setting that interfere with the development of a strong sense of school belonging. Unfortunately, much of the prior research on school belonging has relied on survey data, correlational studies, or teacher …

Space Use, Habitat Selection, And Flight Behavior Of Eagles Across Northwestern North America, Stephen Bernard Lewis

Graduate Student Theses, Dissertations, & Professional Papers

Understanding how behavioral strategies shape movement, space use, and risk exposure is essential for conserving long-lived raptors. In this dissertation, I use high-resolution GPS telemetry from bald eagles (Haliaeetus leucocephalus) and golden eagles (Aquila chrysaetos) to examine how behavioral state, environmental context, and temporal dynamics structure raptor ecology across Alaska, British Columbia, and the western United States.

Chapter 1 used random forest classification of movement data from 43 bald eagles and 94 golden eagles to identify territorial, nesting, and floater seasons with high accuracy. Floaters comprised roughly one-third of all seasons in both species, and many individuals exhibited consistent state-specific …

Causes And Consecuences Of Gene Expression Divergence In The Rodent Placenta, Luis Fernando Rodriguez Caro

Graduate Student Theses, Dissertations, & Professional Papers

Understanding the origin and diversification of reproductive traits is a central goal in evolutionary biology. In mammals, the placenta represents a key evolutionary innovation that reshaped developmental strategies and enabled the ecological success of the clade. Yet despite its importance, the genetic mechanisms and selective pressures driving placental evolution remain poorly understood, due in part to methodological challenges and the limited phylogenetic and genomic scope of prior studies. This dissertation research addresses these gaps by integrating comparative genomics, transcriptomics, and new analytical tools to investigate placental gene regulation across closely related rodent species. Chapter one presents an extensive comparison of …

Whole Genome Sequencing From Snowshoe Hare Fecal Samples, Jessica J. Powell

Graduate Student Theses, Dissertations, & Professional Papers

Genomic analyses can provide powerful insights into important issues in conservation biology, including rapid estimates of overall genetic diversity and related population genetic parameters. Noninvasive DNA sampling from fecal samples is an affordable, efficient, and broadly applicable sampling method that has been used in many targeted genetic analyses. However, the efficacy of whole genome sequencing from fecal samples remains relatively unexplored in most taxa. Here, we present results from two experiments designed to test the quantity and quality of whole genome resequencing data obtained from snowshoe hare (Lepus americanus) fecal pellets. Extensive previous research has used genetic analyses …

Ecology-Driven Machine Learning For Predicting Risk Of Spread For Aquatic Invasive Species., Leif Eric Howard

Graduate Student Theses, Dissertations, & Professional Papers

Effective management of aquatic invasive species (AIS) requires predictive tools that leverage environmental and ecological data to forecast spread into uninvaded areas. However, species distribution models (SDMs) often struggle to capture key invasion processes such as dispersal, propagule pressure, and biotic interactions. This thesis integrates ecological, dispersal, and environmental predictors within a machine learning framework to enhance AIS risk prediction and model transferability across space.

In Chapter 2, 61 novel predictors were developed for 2,203 Minnesota lakes to model zebra mussel (Dreissena polymorpha) occurrence, incorporating variables related to propagule pressure (e.g., boat visitation), community composition (e.g., fish species …

A Retrospective Assessment Of Post-Fire Planting In The Us: Aligning Actual And Optimal Planting Sites To Address The Reforestation Gap, Lewis Faller

Graduate Student Theses, Dissertations, & Professional Papers

The natural regeneration processes that maintain semi-arid North American conifer forests are being disrupted. Increasingly, large wildfires burn core areas beyond the typical seed dispersal range of surviving adult trees and even when seeds are present, climate conditions increasingly are unsuitable for conifer recruitment, establishment, and survival. The USDA Forest Service (USFS), mandated to maintain forest cover in response to harvest or disturbance, now faces a planting backlog of over 3.8 million acres. Here, we conduct a retrospective assessment (1986–2023) of USFS post-fire reforestation to evaluate (1) whether historical planting patterns align with the goal to close the national reforestation …

The Biopiracy Of Traditional Knowledge In United States Patent Law, Hannah Green

Public Land & Resources Law Review

The United States intellectual property (“IP”) system is deeply intertwined with our country’s history and constitution. t is foundational in favoring young American inventors. George Washington signed the first patent act in 1790 in hopes of promoting the innovation and progress of science and useful arts. Yet, our patent system was also built around the Western tradition of individualism and competition, which failed to recognize the communal nature and traditional knowledge of tribal communities. This disparity allows the biopiracy of traditional knowledge to be lawful. This comment will explore the harmful toll that United States patent law has taken on …

Master Of Social Work Portfolio, Kiana L. Emge

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

It's The Journey That Matters Most, Jenny Petersen

Graduate Student Portfolios, Professional Papers, and Capstone Projects

My MSW journey has been one of profound growth, marked by the integration of academic knowledge, hands-on fieldwork, and personal reflection. Through challenges and triumphs, I have developed resilience, empathy, and a deeper commitment to advocating for justice and empowering individuals and communities.

Master Of Social Work Portfolio, Madison L. Good

Graduate Student Portfolios, Professional Papers, and Capstone Projects

This portfolio highlights my growth and development as a social work student which I am hopeful and committed to continuing as I transition into a new social work professional. The five elements of advanced integrated practice will be presented followed by the competency that relates to each element. Within each competency, I will explore the dimensions of practice that include how I expanded my knowledge, skills, and values while forming and demonstrating cognitive and affective processes throughout my time in the program.