Digital Commons Network^™

Establishing Metric Method’S To Identify Variation In Human Biological Sex Using The Upper And Lower Limb Bones Of Non-Population Specific Samples., Roland P. Sanchez

Graduate Student Theses, Dissertations, & Professional Papers

Sex estimation of human skeletal remains is a facet of the biological profile. The pelvis has been suggested as the best source to accurately predicting the biological sex, but not always available after the recovery of human remains. At times, only long bones of human skeletal remains are recovered for identification. It has been shown that metric measurements using long can accurately predict biological sex. The most common methods use discriminant functions to predict the likelihood an individual falls within a certain population. These studies rely on population specific collections of skeletal remains for increased accuracy. It’s advised to avoid …

Seahorsedad: A Study Of Metaphors In Transmasculine Birther’S Instagram Posts, Alexa Anne Runnion

Graduate Student Theses, Dissertations, & Professional Papers

Dominant notions of pregnancy frame gestation as a solely female process. However, the experiences of transmasculine birthers challenge this assumption, demonstrating that pregnancy is not inherently tied to womanhood but is instead shaped by social and cultural narratives and representations. This paper explores the unique pregnancy and parental exercises of transmasculine birthers by examining public social media posts under the hashtag #seahorsedad on Instagram. Utilizing metaphorical criticism, I aim to uncover how transmasculine birthers, known within the community as “seahorse dads,” both uphold and resist traditional notions of gender, pregnancy, and parenting through a combination of textual and visual metaphor. …

Aspen Stands Enrich Bird Communities Following A Wildfire In A Montane, Mixed Conifer Forest, Cody Q. Lane

Graduate Student Theses, Dissertations, & Professional Papers

Fire is a major ecological force in most terrestrial systems, but the responses of animal communities to fire vary markedly across ecosystems due to variability in fire regimes and vegetation communities. Quaking aspen (Populus tremuloides) is unique within coniferous forests of western North America for its ability to regenerate following wildfire via vegetative resprouting. As managers employ techniques to restore fire regimes and conserve declining aspen forests, it becomes important to understand how aspen alters postfire communities. Our objectives were to (1) assess how aspen interacted with fire severity and years since fire to influence avian species and …

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 …

Fuel Break Effectiveness – Determining Ignition Thresholds Based On Radiant And Convective Energy Transfer, Daniel Michael Jimenez

Graduate Student Theses, Dissertations, & Professional Papers

Extended fire seasons and increased fire severity in and around protected ecosystems and the wildland urban interface (WUI) will increasingly challenge fire suppression, impact communities and threaten property and resources. Addressing this growing threat through proactive management solutions that protect values at risk requires improved fire behavior prediction capabilities.

Here I explore the radiant and convective energy transfer mechanisms of fire ignition or extinction associated with fuel discontinuities. Through a series of wind tunnel experiments I identified energy and ignition thresholds unique to changing wind speed, fuel moistures and fire line characteristics, and developed a multi-variate linear regression model to …

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 …

Hormonal Decay After Death: Evaluating Dhea-S As A Potential Molecular Marker For Postmortem Estimation, Marisa Lydia Novak

Graduate Student Theses, Dissertations, & Professional Papers

Post-mortem interval (PMI) estimation is a central component of forensic anthropological investigation, but traditional methods for estimating time since death lose accuracy after ~72 hours. Recent research indicates that some steroid hormones may undergo predictable degradation patterns after death, offering potential use as biochemical clocks for PMI estimation beyond this threshold. Dehydroepiandrosterone (DHEA), and its sulfate form (DHEA-S) are of particular interest due to their metabolic stability, systemic influence, and association with trauma. This study investigates whether DHEA-S hormonal degradation patterns correlate with time elapsed since death and body temperature, evaluating their potential as biochemical PMI markers. 160 mL of …

Structural And Dynamic Properties Of Gas-Phase Molecules In High-Order Harmonic Generation: Insights From Time-Dependent Density Functional Theory Calculations, Christopher Michael King

Graduate Student Theses, Dissertations, & Professional Papers

High-order harmonic generation, or HHG, is a highly nonlinear quantum optical process capable of generating X-ray/ultraviolet radiation. An atom or molecule is irradiated with a mid-IR laser at high intensity, ionizes, and then emits high-frequency light at integer multiples of the driving laser frequency when an ionized electron recollides with the molecular ion. A convenient tabletop source of coherent XUV light and a common seed for free-electron lasers, HHG can also serve as a self-probe of the source atom or molecule. In the latter case, the HHG spectrum can provide valuable insight into the structure and dynamics of the species …

Lives And Lessons Of Zoo Animals, Nicole Emlen

Undergraduate Theses, Professional Papers, and Capstone Artifacts

This project was an interdisciplinary museum exhibit that was displayed at the Montana Natural History Center between April 4 and May 12, 2025. It displays my photographs that I took of some of the animals I worked with during my summer 2024 internship at ZooMontana. In this project, I educate the public about three main functions of zoos--rescue, conservation, and education--through the stories and lives of four species. These animals all have unique stories that are important to share to improve public knowledge of why zoos are important and how we can improve relationships between humans and wildlife. Photography is …

Foraging Opportunists: Encouraging Reconnection With The Land, Madelyne Miller, Sylvia Blodorn, Aine Fannon, Ada Scott, Luke Pruitt

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Contextualizing the history of opportunist and native plant species opens options for land management and reconnection to cultural land practices. By recognizing that opportunist species often spread as a result of relocation for practical usage, we determine that reintroducing these uses can lead to an escalation in harvesting these plants. Uses of opportunist plants are diverse and include food sources, artistic practices, and medicine. Foraging also leads to improved human-land-connectedness as well as a deeper connection to ancestral and cultural traditions, which has been found to improve mental health. Focusing on this method of land management will limit the need …

No Evidence For Warming-Driven Extirpation Of Tallgrass Prairie Plants, Emily D. Horner, Meredith Zettlemoyer

Undergraduate Theses, Professional Papers, and Capstone Artifacts

More and more species face extinction as our climate warms. Understanding how climate change influences local extinctions may help us comprehend and predict global extinctions. Ultimately, local extinctions stem from declines in vital rates such as survival, growth, and reproduction. One way to examine how warming might have affected local extinctions is to compare responses between locally extinct versus extant (still present) species. In this comparative framework, more negative effects of warming on locally extinct species’ (but not extant species’) vital rates would suggest a role of warming in their local extinction. We also expect that locally extinct species would …

The Legal Debate: Corner Crossing And Public Land Access, Kaden Leverenz

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Is it legal to cross from one corner of public land to an adjacent corner of public land across checkerboarded landscapes in the American West? This question regarding corner crossing has become one of the most prominent and unresolved issues in public land access. Although federal courts in Iron Bar Holdings v. Cape (2025) confirmed corner crossing, without touching or damaging private land, does not constitute trespass, the legal landscape still remains unsettled. Public land users play a significant role in shaping the direction of this issue, as demonstrated by past public mobilizations against large-scale land sell-offs. Therefore, this paper …

Balancing Timber Harvest And Biodiversity: Impacts Of Selective Logging On Wildlife In The Chiquibul Forest Reserve, Belize, Kilynn Groen

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Selective logging is often promoted as a sustainable forestry practice that maintains biodiversity and ecosystem function, yet its ecological consequences remain under examined, particularly in tropical forests. This study investigates how selective logging affects wildlife communities in the Chiquibul Forest Reserve, Belize. Using remote camera trap data from 22 sites (9 unlogged forest sites and 13 logged (stump) sites), we assessed species richness, trophic structure, and environmental predictors of wildlife abundance. While overall wildlife captures and species richness did not differ significantly between forest and stump habitats, principal component analysis revealed strong community-level separation, with stump habitats supporting distinct species …

Assessing Intra-Seasonal Changes In Summer Elk Diet Composition, Ava E. Window

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Elk (Cervus canadensis) require adequate forage to fulfill their seasonal nutritional requirements. Elk undergo their highest nutritional demands during summer to support critical life functions such as late gestation, lactation, and juvenile growth. However, variations in plant phenology significantly influence the quality and quantity of forage available to elk during the summer season. As summer advances and plant communities mature, forage quality often declines, leading to a landscape that imposes greater nutritional constraints on elk. As a result, prior research on elk foraging habits has primarily focused on late summer. This has led to limited knowledge surrounding the …

Master Of Social Work Portfolio: Rooted In Community, Whitney Wb Pratt

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

Diving Into Watershed Science And Education: Blending Science, Storytelling, And Professional Practice In Northern Michigan, Mara Clare Pellerito

Graduate Student Portfolios, Professional Papers, and Capstone Projects

This portfolio expands understanding of the relationship between watershed education and science through storytelling, lived experiences, and research. In northern Michigan, the invasive Myriophyllum spicatum threatens watershed health by forming dense patches that block sunlight, exclude native plants and wildlife, and retain harmful nutrients later released by herbicide treatment. The Lake Leelanau Lake Association has managed this species with preventative and restorative practices since 2020, and this portfolio examines their results through scientific study and practical experience from the summers of 2024 and 25. It also explores how education serves as a stepping stone from childhood curiosity to a lifetime …

Grounded Practice: Leadership And Integrity In Complex Systems, Tonja Smith

Graduate Student Portfolios, Professional Papers, and Capstone Projects

This portfolio presents the integration of advanced social work competencies developed through the Master of Social Work program at the University of Montana. Grounded in evidence-informed practice, the work demonstrates applied skills in assessment, intervention, group facilitation, policy practice, and interagency collaboration across rural and multidisciplinary settings. Artifacts highlight structured approaches to Batterer Intervention Groups, Domestic Violence Inventories, Family Group Conferencing, and Supported Education, with an emphasis on accountability, safety, and culturally responsive engagement.

The narrative analyzes how positionality, reflective practice, and cultural humility shape professional judgment, particularly when navigating structural inequities and conflicting system demands. The portfolio illustrates the …

Msw Portfolio, Amy Sanders

Graduate Student Portfolios, Professional Papers, and Capstone Projects

MSW Portfolio through the lens of "otherness".

Msw Portfolio, Steven Asire

Graduate Student Portfolios, Professional Papers, and Capstone Projects

This work encapsulates my progression both throughout my time in the MSW program as well as my practicum and professional experience working in the mental health field. The portfolio applies past work and describes my progression from a micro lense in practice to a more holistic approach, including mezzo and macro levels of focus and how these progressions will influence my future work.

Social Work Professional Portfolio, Anthony Hoffer

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

Daughter Of A Lost Bird, Susan J. Schwidde

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

A Critical Juncture: The Convergence Of Natural Resource Management And Tribal Sovereignty, Anna Aleta Butterfield

Graduate Student Portfolios, Professional Papers, and Capstone Projects

This portfolio reflects the work I’ve done in my four years as a dual degree student, pursuing a Master of Science in Environmental Studies and a juris doctorate degree, and focuses on policies and laws surrounding natural resource management. It touches on how those policies relate to and expand or constrict the exercise of sovereignty by indigenous populations.

This piece first considers the effects of plastic on salmon populations and those indigenous groups that rely on salmon for subsistence and cultural purposes. The remaining three pieces focus on various aspects of the Confederated Salish and Kootenai Tribes - Montana Water …

Small Mammal Population Dynamics And Torpor Use In A Changing Subnivean Environment, Derik Butts

Graduate Student Theses, Dissertations, & Professional Papers

Despite global temperature increases, winter soil surface temperatures in some northern regions might actually be getting colder due to diminishing snowpacks exposing the soil surface to ambient winter conditions. Small mammal species in northern temperate areas often utilize a microclimate beneath the snow, known as the subnivium, to escape harsh winter conditions. Exposure to winter conditions without the subnivium as a buffer could cause small mammals to experience physiological stress and population declines. In this thesis, I explore the impacts of a declining subnivium from two complementary perspectives. In chapter 1, we used a structural equation model (SEM) to test …

January 2025 News Releases, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Master Of Social Work Portfolio, Kinley Mae Pope

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

Structural Optimization And Stability Enhancement Of Uba(2) And Ntl9 Using The Computational Tool: Emcast, Bahar Ghazi Esfahani

Graduate Student Theses, Dissertations, & Professional Papers

This study enhances protein stability prediction by refining EmCAST (Empirical C-Alpha Stability Tool), a computational tool used to identify stabilizing mutations in protein domains. We applied EmCAST to two model proteins: the α-helical ubiquitin-associated domain 2 (UBA(2)) and the α/β N-terminal domain of ribosomal protein L9 (NTL9). Protein stability is critical for proper function, and mutations can lead to misfolding and disease. To validate EmCAST’s predictions, guanidine hydrochloride-induced denaturation was monitored using circular dichroism (CD) spectroscopy for both wild-type and mutant variants. Results guided refinements to EmCAST’s algorithm, incorporating new experimental datasets to improve accuracy. Additionally, we examined the assumption …

Slaying The Windigo: Fear And Faith In The Anthropocene, Daniel J. Irwin

Graduate Student Theses, Dissertations, & Professional Papers

This thesis examines the changing affect of fear in the environment and how it is influencing writing in the Anthropocene. Chapter one lays the groundwork for the present moment of ecocriticism, examining how the relationship with the environment has changed throughout the history of ecocritical writing. The second chapter examines how fear has been an intrinsic element of environmental storytelling, starting with the romantic ideas of the sublime. With the recognition of the impact that humanity has had on Earth over the past several centuries, and the accelerating acceptance of the idea of the Anthropocene since the turn of the …

Social Connection And Disability: A Longitudinal Experimental Study Of Intervention Effectiveness And Moderators, Krys Standley

Graduate Student Theses, Dissertations, & Professional Papers

Background: Social disconnection is an epidemic-level problem that is exacerbated for people with disabilities. There is a pressing need for theory-based research to illuminate the factors that contribute to effective interventions for improving social connection in this population.

Objectives: The objectives of this study were 1) to test the hypothesis that the Peer Collective, a six-week, online, group-based intervention centered on social support topics, would result in increased levels of social connection among community-dwelling adults with any types of disabilities and 2) to examine potential moderating effects in this hypothesized relationship.

Method: A longitudinal intervention study design with random assignment …

On Creating Bog Bodies: The Effects Of Ph Value On Dna Decomposition In A Bog Environment, Gabrielle B. Giangreco

Graduate Student Theses, Dissertations, & Professional Papers

Bog bodies have been a consistent area of interest in both archaeology and biological anthropology, due to their high rates of physical preservation. While there are many physical analyses that have been done on these remains, DNA analysis is lacking. Most studies focus on changes to the remains themselves or attempt to determine why they were placed in a bog. This study aims to examine the effects of pH level on the breakdown of DNA on remains placed inside a bog along with any larger differences in the preservation of the remains. The results of this study seem to point …

Evaluating The Accuracy Of Stature Estimation From Tibial Radiographs Using Known And Newly Developed Regression Formulas, Atlantis Kae Baron

Graduate Student Theses, Dissertations, & Professional Papers

This study assesses the accuracy of stature estimation from tibial radiographs using digital measurements as an alternative to traditional osteometric tools. Stature estimation is crucial in forensic anthropology for identifying individuals, especially cases involving skeletal remains. Traditional methods rely on physical measurements and established regression formulas, such as those by Trotter & Gleser (1958).

This research analyzed tibial radiographs from the Forensic Anthropology Skeletal Trauma (FAST) database with ImageJ software to measure tibial lengths digitally. The sample included 59 tibiae, with measurements compared against three regression formulas; Trotter & Gleser (1958), Simon et al. (2023), and a new regression formula …