Digital Commons Network^™

Spatial Distribution Of Native Cushion Plants And Invasive Species Along Waterworks Trail, Missoula, Montana: Implications For Plant Richness And Competition, Audrey J. Gustafson, Meredith Zettlemoyer

University of Montana Conference on Undergraduate Research (UMCUR)

Invasive species can significantly impact the distribution and richness of native plants, resulting in competitive exclusion. This study investigates the spatial variation in species richness of native cushion plants in relation to invasive species along Waterworks Trail in Missoula, Montana. This study assessed how elevation, distance from trail, and upslope (above the gate) vs downslope (below the gate) direction (east vs west) influenced the distribution of both the cushion plants and the invasive species. Species richness of cushion plants was higher on the west side of the trail, particularly at lower elevations. In contrast, the east side exhibited lower richness …

The Heat Exposure Schedule On Vascular Inflammation Responses To Heat Acclimation, Kenzie Williams, Amanda Alfaro-Chaverri, Mariam Rojas-Ledezma, Alejandro M. Rosales, Ron Michalak

University of Montana Conference on Undergraduate Research (UMCUR)

Understanding thermoregulatory acclimation during work challenges in both females and males remains an active area of environmental physiology research. Myriad body-wide adaptive responses are frequently influenced by a milieu of circulating factors, including blood markers of vascular inflammation. How these markers respond to variations in acute and repeated challenges of exercise+heat may influence heat acclimation outcomes. PURPOSE: To quantify circulating markers of vascular inflammation following either sustained (1x 90 minutes) or intermittent (3x 30 Minutes) exercise+heat exposure protocols. METHODS: Females and males (n=30 each) were randomized to receive a week of low intensity exercise performed during one of two identically …

A Look Into The Past: What Historic Field Data Tells Us About Understory Succession Post-Fire, Augustus Lawson, Dalton Brantley, Dean Pearson, Yvette Ortega

University of Montana Conference on Undergraduate Research (UMCUR)

As wildfires grow in frequency and intensity, long-term records documenting responses to altered fire regimes are essential for understanding and predicting changes in vegetation communities in burned landscapes. Peter Stickney was a renowned ecologist, dedicating his life to studying understory species succession following wildfire. In partnership with the U.S. Forest Service and the MONTU Herbarium, we organized and analyzed Peter Stickney’s 50-year dataset to gain insight into how plant communities respond to disturbance. We added information on various functional characteristics for each species, including growth form (shrub, grass, or forb), native status (invasive vs. native), and conservatism value (c-value, a …

Analyzing Grizzly Bear Movement Patterns: Identifying Females With Newborn Cubs Using Telemetry Data, Mayson E. Whitlock

University of Montana Conference on Undergraduate Research (UMCUR)

Grizzly bears (Ursus arctos horribilis) generally den in rugged, remote terrain during winter months. Females give birth to cubs in the den in mid to late winter and emerge in spring with highly vulnerable cubs. Detection of cub presence to date has generally relied on aerial surveys, which are costly and challenging, particularly in denning terrain. An understanding of the presence and survival of grizzly bear cubs after den emergence is thus generally limited. This information gap impedes an accurate assessment of reproductive rates, an understanding of which is particularly important in the Cabinet-Yaak and Selkirk Recovery Ecosystems, …

The Role Of Diet And Exercise In Reducing Risk Of Dementia Development In Type Ii Diabetics; A Meta Analysis., Silas W. Acker

University of Montana Conference on Undergraduate Research (UMCUR)

Dementia, particularly vascular dementia, is increasingly recognized as a complication of type II diabetes. The goal of this review is to determine whether a healthy diet and adequate physical activity can effectively manage common comorbidities of diabetes that lead to the development of dementia. This review pulls from a variety of sources examining the shared risk factors between type II diabetes and dementia, and the effectiveness of evidence-based lifestyle modifications focused on prevention.

A comprehensive review of twenty peer-reviewed medical studies, articles, and journals was conducted to investigate the link between Diabetes Mellitus and Dementia. The review aimed to identify …

Exploring An Endemic Species: Flower And Leaf Trait Variation In A Missoula Wildflower, Maxwell Lee Hirrill, Julie Cox

University of Montana Conference on Undergraduate Research (UMCUR)

Studies investigating intraspecific variation in morphological traits within endemic species often determine the geographic range that a species can occupy. We quantified intraspecific variationin floral morphology and leaf traits in anendemic wildflower, Phlox missoulensis, which is only found in the North Hills of the Missoula Valley in Western Montana. We collected floral, leaf, and pistil samples from over 100 Phlox missoulensis individuals across two populations in the Missoula North Hills. We used ImageJ software to measure 7 morphological traits: floral color, floral diameter, petal length and width, corolla tube length, pistil length, leaf length, and specific leaf area. We selected …

How Forest Stand Conditions Influence Whitebark Pine And Clark’S Nutcracker: A Systematic Review, Bryan Mathew Cohen

University of Montana Conference on Undergraduate Research (UMCUR)

Whitebark pine (Pinus albicaulis), a keystone species of high-elevation ecosystems of western North America, is threatened with extinction due to disease (Blister rust), pests (Mountain pine beetle), and climate change. Regeneration of the species depends nearly exclusively on the seed-caching behavior of Clark’s nutcracker (Nucifraga columbiana, Family Corvidae). Because of this, conservation of whitebark ecosystems requires restoring stand structures that favor nutcrackers. Although there are increasing numbers of studies on the relationship between nutcrackers and whitebark pine, findings have not yet been synthesized, limiting knowledge for application to management. I did a systematic literature review to answer the following questions: …

Exploring The Reproductive Phenology Of Feral Horses In North America, Mattie Budine

University of Montana Conference on Undergraduate Research (UMCUR)

Feral horses (Equus ferus caballus) are a prolific species in western North America. Due to their history of domestication, it is believed they have an extended foaling period compared to native ungulates, such as elk (Cervus canadensis) and mule deer (Odocoileus hemionus), yet there are few (or no) studies examining this assumption. I am examining this assumption by comparing the observed foaling seasons of different regional herds throughout North America to identify if foaling seasons are uniform across latitudes. My dataset consists of various research studies and unpublished observations of different feral horse herds throughout North America. The result is …

Rewilding Rattlesnake Creek, Cameron M. Kirwan, Ethaniel Marshall

University of Montana Conference on Undergraduate Research (UMCUR)

Rattlesnake Creek north of Missoula lacks significant in-stream structure in the form of large wood downstream of the National Recreation Area. The natural introduction of large wood from the “derecho” wind event in July of 2024 has the potential to provide much needed aquatic habitat and stream complexity.

The focus of this project is monitoring the process of “rewilding” on Rattlesnake Creek through surveys of large wood and pool habitat. The Rattlesnake has historically been subject to various forms of degradation. It was dammed in 1904, with the dam being removed 116 years later in 2020 as part of stream …

Cervid Breakage Patterns In Western Montana, Tanner D. Liermann

University of Montana Conference on Undergraduate Research (UMCUR)

Sexual weapons are expected to withstand intense combat as weapon failure can directly impact an individual's reproductive success. Most weapons are permanent and a broken weapon costs that animal for the rest of its life. However, a few species regrow their weapons. The consequences of structural failure are lower in these animals, and they may invest less in their production as a result—leading to increased rates of breakage in the wild. Cervids (true deer) regenerate antlers each year, yet their rates of weapon failure remain unclear. In our study, we recorded breakage rates, antler point symmetry, harvest location, and age …

The Sedge, Taylor A. Ferguson

University of Montana Conference on Undergraduate Research (UMCUR)

The artist's work draws inspiration from the biology and behavior of Sandhill Cranes, focusing on themes of crane-like movement through ballet vocabulary, large migrations, and a deep reverence for these ancient birds. Recognized as the one of the oldest living bird species, Sandhill Cranes evoke a sense of timelessness, which inspired the creation of this piece. Combining ballet and modern dance, the choreography evolves through sections symbolizing the birds' life cycle and behaviors. Heavily influenced by the cast’s artistic input, the piece integrates wildlife behavior into dance, reflecting the artist's ongoing exploration of connections between choreography and wildlife biology.

Microbial Opsins: The Potential For Neurodegenerative Therapies, Maia Estrella Huebner

University of Montana Conference on Undergraduate Research (UMCUR)

Optogenetics is a new field utilizing light to manipulate cells. The produced symptoms mimic those of classic hibernation performed by many mammalian species, supporting the term “artificial hibernation”. Hibernation experienced by animals allows the organisms to maintain cell latency. These tools can be developed by applying novel techniques to laboratory mammals. Introducing stem-cell derived model organs to these kinds of studies may provide more insight on how optogenetics could advance medical therapies for neurodegenerative disorders.

This literature review analyzes the research completed in the biochemical origin of microbial opsins and their function. The channelrhodopsins (ChRs) from the microorganism Chlamydomonas reinhardtii …

Consuming The Tropics In The 'Age Of The Insect': Imperial Imaginaries Of Frontier Ecologies In Spectacular Expositions, Adria Capozzoli

University of Montana Conference on Undergraduate Research (UMCUR)

By surveying representations of 'exotic' landscapes and 'monstrous' other-than-human creatures of the tropics featured in exhibits of the fin de siecle and early interwar period, including visual displays and descriptive language at the World's Columbian Exposition in Chicago (1893) and the Panama-Pacific International Exposition (PPIE) in San Francisco (1915), this project examines tropical frontiers as conceived in the geographical imaginaries of the United States to explore how metropolitan audiences related to those environments encountered at the imperial periphery. Between 1890 and 1920, were the infamously exaggerated characterizations of nineteenth-century spectacle tempered by the advent of twentieth-century cultural and scientific discourses, …

Montana Assault Resource Index, Storytelling & Education (Mt A.R.I.S.E.): Breaking Barriers To Disclosure Of Sexual Violence In The Lgbtq+ Community, Olivia G. Donohue, Kate Bick, Cana Odegaard, Emma Hixson

University of Montana Conference on Undergraduate Research (UMCUR)

This project aims to address the unique needs of LEGBTQ+ survivors of sexual violence, through the enhancement of social support and resource accessibility for this marginalized group, particularly reaching those in rural settings like Montana. Existing literature highlights significant failures to understand the intersectional vulnerabilities and resilience factors impacting recovery and outcomes among LGBTQ+ individuals. Often, studies neglect specific subgroups, including transgender individuals, bisexual persons, and nonbinary survivors, and do not implement comprehensive, intersectional frameworks that capture the diverse experiences within the LGBTQ+ community. In rural areas, LGBTQ+ individuals face systemic issues, such as restricted access to supportive healthcare, social …

Grizzly Green Labs: Implementing A Green Lab Program At The University Of Montana, Katie Coates, Maya Gritzner, Alena Flocchini, Emma Hasquet, Sophia Miller, Kylie Olson

University of Montana Conference on Undergraduate Research (UMCUR)

Research laboratories are a major but often overlooked source of energy consumption and waste in universities. Labs rely on single-use plastics for sterility and energy-intensive equipment, resulting in a substantial environmental impact. Globally, laboratories consume significantly more energy than the average household and generate millions of tons of plastic waste yearly. To address this, many universities worldwide and in the United States have adopted sustainable initiatives through “Green Lab” programs, which have been found to successfully reduce resource consumption while maintaining research integrity. Despite the University of Montana's commitment to sustainability, no university programs or regulations address lab sustainability, even …

Investigating Strength Of Cytoplasmic Incompatibility And Rate Of Maternal Transmission In Zaprionus Tsacasi By Infection Of Wolbachia Wzts, Ella Walters

University of Montana Conference on Undergraduate Research (UMCUR)

Animals associate with diverse microbes that affect their health and fitness. Many insects and other species host microbes termed endosymbionts inside their cells. Among all endosymbionts, Wolbachia bacteria are the most common, occurring in about half of all insect species. Wolbachia are maternally transmitted – similar to our own mitochondria – and many variants have evolved the capacity to affect host reproduction to favor their transmission across host generations. This includes variants that cause cytoplasmic incompatibility (CI) that kills embryos without Wolbachia fertilized by males with Wolbachia. Here, I assess the strength of CI and rates of maternal transmission of …

Analysis Of Tlr7/8 Fentanyl Vaccination On The Humoral Compartment By Single Cell Sequencing Of The B Cell Receptor, Elizabeth J. Florian

University of Montana Conference on Undergraduate Research (UMCUR)

Fentanyl overdose deaths are on the rise from intentional use or accidental exposure. In this context, additional treatment options to Narcan are being explored. One FDA approved alternative is the development of monoclonal antibodies; for fentanyl treatment or as a therapeutic. Our project aimed to use our toll-like receptor 7/8 (TLR 7/8) adjuvanted Fentanyl vaccine to generate monoclonal antibodies against fentanyl. We anticipated the vaccine would change the antibodies produced when compared to naive conditions and this would suggest potential candidates for future antibody treatment. To accomplish this, mice were vaccinated with a TLR 7/8 fentanyl hapten vaccine, and lymph …

Sleep Characterization In Betta Splendens: An Observational Study, Lorelei S. Krebs

University of Montana Conference on Undergraduate Research (UMCUR)

Pharmaceuticals are becoming a large pollutant due to inefficient filtration methods from wastewater treatment plants. Some of the most common pharmaceutical pollutants are antidepressants, specifically selective serotonin reuptake inhibitors (SSRIs). SSRIs are a type of psychoactive drug that alters an organism’s cognition by blocking the reuptake of the neurotransmitter serotonin. The blocking floods the synapse and increases postsynaptic binding potential. Currently, the most common SSRI, fluoxetine (FLX), has been seen in every water matrix type, ranging from fresh water to glaciers, indicating an ever present pollutant problem. However, what is unknown are the literal downstream effects: how does this affect …

Embodied Self-Remembering; Toward A Personal Movement Philosophy, Nicholas Greenlund

University of Montana Conference on Undergraduate Research (UMCUR)

The possibility examined in this project is the expansion of human consciousness through Inner work. This “Inner work” integrates the insights of Buddhist psychology, Integral psychology, Enneagram philosophy, and Somatic practices for the expansion of conscious potential in and through the cultivation of compassionate understanding. By observing and identifying the conditions that reinforce a reactive state of being, a choice emerges to remain or grow a capacity of responsiveness. This process is through the body’s sensory presence, the heart’s courage to love, and the mind’s construction of Self. The subjective exploration of the interconnected body-mind integrates the complex study of …

Wolbachia Incidence And Prevalence In Montane Lepidoptera, Anna Imes

University of Montana Conference on Undergraduate Research (UMCUR)

Animal hosts associate with endosymbiotic microbes that live inside their cells. Maternally transmitted Wolbachia bacteria are the most common endosymbionts, associating with about half of all insect species. Most Wolbachia form facultative associations with their hosts (i.e., the hosts do not require Wolbachia). In most systems, it remains unknown how common Wolbachia are within host populations and the extent to which their prevalence varies through time and space. Here, I fill this gap in knowledge by quantifying the incidence and prevalence of Wolbachia in a community of understudied montane moths. We conducted field sampling of divergent moth species every …

Standardizing Vocalization Types Of Black-Billed Cuckoos, Emily M. Feiling

University of Montana Conference on Undergraduate Research (UMCUR)

Vocalization patterns in black-billed cuckoos (Coccyzus erythropthalmus) remain understudied. This project aims to standardize their vocalization types by identifying and categorizing distinct call types, along with key spectral features such as frequency, duration, and entropy, to create a consistent vocal repertoire for the species. A bird’s vocal repertoire refers to the full collection of sounds it produces, including both songs and calls.

I analyzed existing audio recordings from Xeno-Canto, focusing on the two primary call types of the black-billed cuckoo: the “cadence coo” and the “rattle.” The goal was to establish a standardized framework for describing these vocalizations …

Using Analytical Ultracentrifugation To Characterize Ric8:Gαi Protein Binding, Ephraim Neils Mortenson

University of Montana Conference on Undergraduate Research (UMCUR)

G-protein coupled receptors (GPCRs) are a target of 35% of FDA-approved drugs and play a major role in cellular communication. GPCRs activate various Gα proteins, such as Gαi, which activate downstream effector proteins and result in intracellular signaling. Ric-8A is a molecular chaperone protein required for Gαi biogenesis and has cytosolic guanine nucleotide exchange factor activity. Understanding proteins which regulate GPCR pathways, like Ric-8A, may reveal novel therapeutic targets in G-protein signaling.

As an undergraduate volunteer in the Analytical Ultracentrifugation (AUC) core, my goal is to use AUC to characterize the binding behavior of Gαi and Ric-8A, independently verify association …

Exploring The Impact Of Menstrual Cycle Length On Negative Affect And Anxiety, Gracie Jane Hietala

University of Montana Conference on Undergraduate Research (UMCUR)

Menstrual cycle length is a biological factor that may influence psychological well-being, yet its relationship remains under-researched. The study “Emotion Recognition and Mood Along the Menstrual Cycle,” by Pletzer and Noachtar recruited 230 naturally-cycling women to examine how menstrual cycle phases impact the ability to recognize emotions from facial expressions. Participants were surveyed during their menses, peri-ovulatory, and mid-luteal phases, with assessments covering psychological factors and hormone levels. Using the open-source data collected from the previous study, the current study investigates the relationship between menstrual cycle, negative mood and anxiety. Results indicate that there is a significant correlation between these …

Rnai Mediated Knockdown Of Genes Related To Human Ovarian Insufficiency And Dysgenesis In Model Organism, C. Elegans, Kathryn Bick

University of Montana Conference on Undergraduate Research (UMCUR)

Ovarian dysgenesis (OD) and premature ovarian insufficiency (POI) are related conditions, where a lack of ovarian growth and germline stem cell division causes the loss of normal ovarian function and early depletion of ovarian follicles, which often presents as infertility and early onset menopause in women. There are numerous genes associated with broad ovarian dysgenesis and POI, including 129 different human genes. While OD and POI is common in females who possess just one X-chromosome, “pure” 46 XX gonadal dysgenesis is a rare condition resulting in OD and POI even though the individual has both X chromosomes. Just one gene, …

Investigating The Role Of Fbf-1 In Somatic Rnai Inheritance In C. Elegans, Elizabeth Sweeney

University of Montana Conference on Undergraduate Research (UMCUR)

RNA interference (RNAi) is a biological process in eukaryotes in which gene suppression is initiated by the presence of short, double-stranded RNA in a cell’s cytoplasm. This is a conserved process that likely evolved primarily to mediate resistance to pathogens. It is also an incredibly useful tool in experimental biology, due to its stability, specificity, and relative ease of use in targeted gene expression modification. In Caenorhabditis elegans (C. elegans), the effects of RNAi are heritable and systemic, making it an ideal model organism for studying transgenerational epigenetic inheritance.

FBF-1 is a member of the PUF protein family, …

Female Hummingbird Metabolism, Gabriella F. Weida

University of Montana Conference on Undergraduate Research (UMCUR)

Animal metabolism studies have frequently focused on males, resulting in a considerable gap in the knowledge of the metabolic requirements of females. These differences may have important ecological and evolutionary consequences, as female behaviors (nesting, incubation, and foraging to feed young) may lead to metabolic demands that vary significantly from those of males. Previous work has led to a hypothesis that metabolic rates to support hovering are greater outdoors compared with rates for the same behavior in laboratory studies, potentially due to wind and thermal conditions. In this study, we tested this hypothesis by measuring the metabolic cost of females …

How Warming Shapes Early Life Stages Of Alpine Cushion Plants, Christopher Cardella

University of Montana Conference on Undergraduate Research (UMCUR)

Alpine tundra is a harsh environment with short growing seasons, low temperatures, and nutrient-poor soils. These ecosystems are warming faster than the global average. Yet how this rapid warming shapes the early life stages of alpine plants is not yet fully understood. Early life stages such as seed germination and seedling survival and growth are some of the most vulnerable life stages in a plant’s life, potentially posing a bottleneck to recruitment. In summer 2023, we collected seeds from three alpine plant species—Silene acaulis, Minuartia obtusiloba, and Phlox condensata—at the Niwot Ridge LTER, CO. Using a controlled germination study, we …

Eliminating Harvest Of White-Tailed Deer Bucks Impacts Age Classes And Gross Score, Ethan Bartek

University of Montana Conference on Undergraduate Research (UMCUR)

Management actions revolving around white-tailed deer (Odocoieus virginianus) typically aim to increase the age of the males (i.e., “bucks”) in the population and antler size to meet social expectations. However, the efficacy of management actions in meeting objectives is sometimes uncertain due to a lack of empirical data. As part of a broad study estimating mammal community composition, 773 trail cameras were placed randomly across the ~6,000-acre Theodore Roosevelt Memorial Ranch in western Montana from 2017-2024. From 2017-2019, this ranch allowed liberal harvest of white-tailed deer as part of the Block Management Program. Due to concerns with white-tailed deer buck …

Pharmacogenomics (Pgx) Implementation In Rural And Underserved Montana, Conlan James Edward Rendell

University of Montana Conference on Undergraduate Research (UMCUR)

My project focuses on optimizing pharmacogenetic (PGx - A medical tool used to tailor a person's treatment based on their genes) testing, in rural pediatric psychiatry in Montana. A problem faced with PGx as an emerging health tool is limited access and difficulties implementing PGx services in rural, underserved, and tribal populations, which further healthcare disparities. Improving access and understanding of PGx would help alleviate these disparities and improve health outcomes. This project sought to answer what the perspectives on current implementations of PGx are. The project addresses healthcare disparities by evaluating provider and patient perspectives on PGx services in …

Montana Kaimin, April 24, 2025, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.