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Highway Kind, Caitlin C. Thompson

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Thistlebloom Moondog, Gary W. Jensen

Graduate Student Theses, Dissertations, & Professional Papers

An aging grieving artist decides to write a memoir as part of a self-healing process, using samples of song lyrics from his extensive collection of original Americana songs as narrative prompts.  Steeped in wanderlust, aspiration, paradox and dysfunction, his is a tale of vexing sub-clinical troubles rooted in the mire of developmental and religious trauma.

Illusions Of Fairness And Sacrifice, Brady Schwertfeger

Graduate Student Theses, Dissertations, & Professional Papers

The American West is a shifting landscape. An incongruous expanse of isolation and urbanity, wilderness and extraction, wealth and welfare, clear water and fire. Fifteen years ago, I moved to my mother’s ancestral homeland of Montana, and have been here ever since. Before that, I was born and raised in Texas, both the West and the South (and often something else entirely), depending on who you ask. My experiences in this region have shaped me indelibly, and have inspired this collection of essays built around culture, politics, and justice in the West. “Pinedale, Wyoming” considers the musician as itinerant wanderer …

Evaluating Multi-Year Transferability Of Single- And Multi-Class Machine Learning For Remote Monitoring Of Beaver-Engineered Landscapes, Harris J. Sloan

Graduate Student Theses, Dissertations, & Professional Papers

Long-term satellite image archives enable ecological monitoring at large scales, but manual extraction of fine-grained features (e.g., beaver dams) remains time-consuming. Machine learning models may automate these tasks, but their temporal transferability for multiannual monitoring is still poorly resolved.

We evaluated the performance of two complementary neural-network frameworks across a 100,000-hectare watershed in Montana USA, using a decade of satellite imagery (2014-2024): (i) a single-class ResNet-50 beaver dam detector, and (ii) a multi-class ResU-Net landcover classifier.

In 2024, the dam detector identified 352 of 404 mapped dams, achieving balanced accuracy = 93.6%, precision = 79.8%, recall = 87.1%, F1 = …

Feral Horses And Native Ungulates: Evaluating The Potential For Competition In Predator–Prey Communities Of Alberta’S Upper Foothills, Birch Gano

Graduate Student Theses, Dissertations, & Professional Papers

Feral herbivores are expanding in range and numbers globally, yet their community-level effects in ecosystems are poorly resolved. We evaluated whether feral horses reshape predator–prey–vegetation dynamics in Alberta’s Upper Foothills, Canada, through two pathways; i) potential exploitative competition for forage and ii) apparent competition via shared predators. We combined fecal DNA metabarcoding with remote wildlife cameras to quantify diets, spatiotemporal co-occurrence, and the role of horses in carnivore diet. We analyzed 241 ungulate scats (feral horses, elk, bighorn sheep, cattle, moose, and deer), 96 combined camera-years at 23 sites, and 190 carnivore scats (wolves, cougars, coyotes, bears) from 2023–2025. The …

Beyond Words: The Horse-Human Encounter In Equine-Assisted Psychotherapy For Residential Substance Use Treatment, Leah Finch Lungren

Graduate Student Theses, Dissertations, & Professional Papers

Equine-assisted psychotherapy (EAP) has emerged as a promising experiential therapeutic intervention, yet the lived experience of adults participating in EAP within residential substance use disorder (SUD) treatment settings remains underexplored. This hermeneutic phenomenological study examined the lived experience of 12 adults who participated in EAP groups during residential SUD treatment across three treatment facilities in the United States. The primary research question was: What is the lived experience of participating in EAP for adults in residential SUD treatment? Data was collected through semi-structured interviews and analyzed through iterative hermeneutic interpretation guided by van Manen’s (1990) existential framework.

Six themes emerged …

Archaeology Of Yellowstone's Cascade Corner: Findings And Diet Breadth Modeling, William Brent Powell

Graduate Student Theses, Dissertations, & Professional Papers

In the summer of 2025, archaeologists from the University of Montana conducted a pedestrian survey through the southwest corner of Yellowstone National Park to take inventory of cultural resources. Over nearly 50 miles of trail survey, the team identified and recorded 17 new archaeological sites, mostly consisting of sparse lithic scatters on the surface. The findings indicate recurrent use of the Bechler area since the Paleoindian period. This thesis aims to provide a comprehensive and detailed report on those findings, followed by an interpretation of the data through the lens of optimal foraging theory and diet breadth modeling. The first …

Initial Qualitative Inquiry Into Social Proverb Use And Acceptability, Emma K. Hinds

Graduate Student Theses, Dissertations, & Professional Papers

Currently,  1 in 36 individuals are diagnosed with autism spectrum disorder (ASD), which is characterized by social communication differences and restricted and/or repetitive behaviors. Many children with ASD also present with sensory, behavioral, and emotional differences, underscoring the need for specialized, evidence-based interventions. Social proverb is a novel intervention approach developed by Dr. Schoffer Closson that provides in-the-moment guidance by explicitly stating expected social behaviors and the rationale behind them (e.g., “We cover our coughs, so we don’t spread germs”). To date, no research has examined the use of social proverbs as an intervention strategy. The purpose of this qualitative …

Heart Of Stone: Geomorphization Through Stone-Oriented Affects, Grace F. Foster

Graduate Student Theses, Dissertations, & Professional Papers

This thesis draws from the work of geologist Marcia Bjornerud to bring a scientific (specifically geologic) understanding of humanity’s relationship to our home planet to bear in a literary context. I employ Bjornerud’s term “geomorphization” to expand from inter-species kinship to inter-substance kinship and to establish stone as an active, lively subject without relying on anthropomorphization. Geomorphization as I define it refers to recognizing similarity between ourselves and stone/Earth on the basis of our stoniness rather than stone’s human-ness. Geomorphizing ourselves entails what Bjornerud calls “timefulness,” a geologic perspective on temporality that sees the past as continually acting in the …

Cormac’S Court: Knights Without God In A Savage Land; Or, Chivalry And Existentialism In Cormac Mccarthy’S The Road, Zoë Margaret Metelerkamp

Graduate Student Theses, Dissertations, & Professional Papers

Cormac McCarthy scholars have examined the influence of romantic grail quest literature and existential philosophy on McCarthy’s oeuvre, but they have treated these subjects independently of each other. This thesis offers a novel exploration of McCarthy’s use of these specific philosophical and literary precedents by focusing on the ways The Road unifies medieval literary principles in Chretien’s Perceval with the existential chivalry Søren Kierkegaard extrapolates in Fear and Trembling.

Analysis Of Policies And Incentives For The Successful Implementation Of Hydrogen-Fueled Medium-Duty And Heavy-Duty Vehicles In Humboldt County, California, Alka Verma

Cal Poly Humboldt theses and projects

The 21st century has seen a significant rise in global greenhouse gas (GHG) emissions, with the transportation sector contributing 23% of these emissions. Medium-duty and heavy-duty vehicles (MD/HD) are particularly impactful, accounting for over a quarter of transport-related emissions. In Humboldt County, California, transportation represents 53% of total emissions, with MD/HD vehicles being a major contributor. As light-duty vehicles shift to zero-emission alternatives, the MD/HD sector faces unique challenges. Hydrogen fuel cell vehicles offer a promising solution, providing longer range, higher energy density, and quicker refueling compared to battery electric vehicles (BEVs). These features make hydrogen an attractive option for …

The Effects Of Temperature On The Persistence Of Environmental Dna In Self-Preserving Filters, Megan Boche

Cal Poly Humboldt theses and projects

This study investigates the effectiveness of self-preserving filter packs (filters designed to passively dry and stabilize captured eDNA without liquid preservatives or cold-chain) in maintaining the integrity of environmental DNA (eDNA) under varying temperature and environmental conditions. eDNA degradation was assessed at three temperatures (23, 33, and 43 °C) using water collected from two distinct study sites that differ in species composition and salinity, a freshwater hatchery and a brackish lagoon. To capture early degradation dynamics, eDNA concentrations were quantified using quantitative PCR assays immediately after filtration (t = 0) and after 2, 4, 8, 16, 32, and 64 days …

Coho Salmon (Oncorhynchus Kisutch) Response To Habitat Restoration Through Space And Time: Monitoring Growth, Survival, And Movement In A Restored Habitat Network, Carter Perez Adamson

Cal Poly Humboldt theses and projects

Despite the decline of coho salmon (Oncorhynchus kisutch), Prairie Creek, a tributary of Redwood Creek in northern California, remains a coho salmon stronghold. The restoration of juvenile coho rearing habitat was identified as a recovery objective in this watershed by the National Marine Fisheries Service. Among the restoration projects addressing this objective are an ongoing project on Prairie Creek and its tributary Skunk Cabbage Creek, and a prior effort on Strawberry Creek (a tributary of Redwood Creek’s estuary). Standard monitoring methods for assessing project success have limitations and may be improved by measuring salmon use of restored habitats …

Nourishing Roots: Supporting Indigenous Food Education In School Gardens, Tatiana Marina Patino Madriaga

Cal Poly Humboldt theses and projects

This project asked: How can a school garden at Hoopa Valley Elementary support Indigenous food education, student well-being, and relational learning? To explore this question, I designed and implemented a garden classroom and facilitated hands-on garden and culinary workshops with students.

The garden was planned in September, built in October, and had plants in the ground by November. Over the course of the project, I facilitated four workshops, one Earth Day community event, and weekly garden classes. Approximately 350 students participated in the garden in some capacity, reflecting broad, school-wide engagement.

Methods included participant observation, documentation of student engagement, and …

Relational Approaches To Fire Resilience: Designing A Living Shaded Fuel Break With Indigenous Knowledge Systems, Natalee Nicole Lopes

Cal Poly Humboldt theses and projects

Escalating wildfire severity across California reflects not only changing climatic conditions but also the cumulative impacts of colonial land management systems that have disrupted Indigenous fire stewardship and altered forest structure and function. This project examines how wildfire mitigation infrastructure, specifically linear fuel treatments, such as fuel breaks, can be reimagined through Indigenous relational frameworks of care-based land stewardship. Grounded in Happy Camp (Athithúfvuunupma), California, within the ancestral homelands of the Karuk Tribe along the mid-Klamath River, this research is carried out in collaboration with Karuk knowledge holders, centering Indigenous knowledge systems and priorities.

Using a mixed-methods approach that integrates …

Effects Of Conifer Encroachment On Oregon White Oak Crown Structure And Nonvascular Epiphyte Communities, Courtney Jonell Copper

Cal Poly Humboldt theses and projects

Oregon white oak (Quercus garryana, QUGA) is an ecologically and culturally important broadleaf tree species native to northern California and the Pacific Northwest. Fire suppression and subsequent encroachment by Douglas-fir (Pseudotsuga menziesii, PSME) and other conifers have made QUGA woodlands among the most threatened habitat types in the region. This study examines the influence of conifer encroachment on QUGA crown structure and nonvascular epiphyte (NVE) communities using ground- and crown-based sampling techniques.

Twenty-four trees were sampled across four sites in northern California along a gradient of conifer encroachment that was quantified as PSME basal area (BA). A …

Bacterial Community Function In Pitcher Plant Leaves As An Experimental And Mathematical Model Of Functional Dynamics, Amelia Jackson

Cal Poly Humboldt theses and projects

This work looks at two different sites with differing abiotic factors in measures of altitude, temperature and precipitation. The site with higher altitude, larger temperature range, and lower precipitation, located in Plumas National Forest (Quincy, CA), had a flat BEF trend that suggests functional redundancy The site with lower altitude, more moderate temperatures, and higher precipitation located in Six Rivers National Forest (Gasquet, CA), also had a flat BEF trend. These abiotic factors could correlate to the significantly different bacterial compositions between sites. The second portion of this work is modeling the host antagonist relationship between Eyxra moths and their …

Taking A Seat In The Circle: Decolonizing Gender Roles That Argue Against The Participation Of Feminine Bodies At The Big Drum, Juli Suzukawa

Cal Poly Humboldt theses and projects

The origins of the Big Drum can be traced back to the 1860s when Tail Feather Woman, a Dakota woman, had a vision of its creation as a tool of resistance. The Big Drum has since expanded and can now be seen at various Indigenous ceremonies and social events. However, there has been controversy regarding the participation of feminine and queer bodies. While reasons for this vary, it has also contributed to harm amongst Indigenous youths that have a more fluid stand on gender identity and may not conform to colonial “gender norms”. In this paper, I will explore how …

Assessing Coho Salmon (Oncorhynchus Kisutch) Distribution Using Traditional Sampling Methods In Conjunction With Edna On Trinity River Tributaries Within The Hoopa Tribal Boundaries, Ely D. Boone

Cal Poly Humboldt theses and projects

Detecting the presence of species using environmental DNA (eDNA) is a fast-growing field of study that shows much promise for population monitoring. In fisheries biology, eDNA is a potentially powerful tool compared to traditional fisheries monitoring techniques such as visual observation via snorkel surveys. When eDNA and traditional survey methods are employed in tandem, using the same spatial and temporal sampling design, eDNA often detects target species when traditional methods do not. In this study, instead of utilizing this paired study design, I implemented eDNA and snorkel surveys at different sampling scales with eDNA being collected at a single downstream …

Integrating Multi-Method Monitoring To Characterize Seasonal Habitat Use Of Green Sturgeon (Acipenser Medirostris) In Humboldt County, California, Olivia S. Boeberitz

Cal Poly Humboldt theses and projects

Green sturgeon (Acipenser medirostris) are a long-lived, anadromous, iteroparous species that spawns in large West Coast North American rivers but ranges widely in the coastal ocean. For coastal California Native American Tribes, green sturgeon are a vital part of their cultural heritage and traditions, and central to their food security. Two genetically distinct population segments (DPSs) of green sturgeon are recognized in the United States, Canada, and Mexico; the southern DPS is listed as “threatened” under the Endangered Species Act and the northern DPS is considered of “conservation concern.” Although green sturgeon are known to use large estuaries …

Depth And Soil Physical Context Govern Soil Organic Carbon, While Woody Cover Moderates Native Vegetation Relationships In California Rangelands, Dabid Zuniga Garcia

Cal Poly Humboldt theses and projects

Soil organic carbon (SOC) is central to soil function and an important component of climate mitigation in rangeland ecosystems, but the controls on SOC across California’s working rangelands remain understudied. Using data from Point Blue Conservation Science’s Rangeland Monitoring Network, this study evaluated how soil properties, vegetation structure, and recent climate relate to SOC concentration at depths of 0–10 cm and 10–40 cm across 145 ranches spanning four California regions. Linear mixed-effects models showed that SOC was consistently higher in topsoil than subsoil and highest in coastal sites relative to interior valleys. Bulk density was the strongest negative predictor of …

Testing Adaptive Habitat Selection In Breeding Swainson's Hawks (Buteo Swainsoni), Elizabeth Meisman

Cal Poly Humboldt theses and projects

Adaptive habitat selection theory predicts that individuals preferentially select habitats that maximize or improve their fitness. However, patterns of habitat preferences may dampen with increasing population density and become decoupled from habitat quality when environmental conditions change. Such dynamics may be especially important in long-lived territorial species that exhibit site fidelity. One of the longest running raptor studies in North America has tracked an increasing population of breeding Swainson’s Hawks (Buteo swainsoni) in Butte Valley, California since 1985, where agricultural practices have shifted over the decades, providing an ideal system for studying these processes. Using nest records from …

Queering Poetry Workshops, Dobby Morse

Cal Poly Humboldt theses and projects

To what extent do participants report that a poetry workshop builds connections between poets and strengthen their confidence in writing? What do participants want or expect from a poetry workshop?

Through this project I hope to attend and host poetry workshops with an emphasis on the queer community. I will collaborate with campus and community organizations like Queer Humboldt and other organizations that are interested in exploring queer experiences through writing, connection, and meditation. This project will serve as a how-to guide for those seeking to conduct their own workshops.

Evidence Of Personality And Movement Syndromes In A Mobile Predator: How Individual Hunting Strategy Shapes Ecosystem Service Potential By Barn Owls (Tyto Furcata) In An Agroecosystem, Lauren M. Jackson

Cal Poly Humboldt theses and projects

Animal-mediated ecosystem services are delivered through the behavior of individuals, yet most studies evaluate service-providing species at the population level. We tested whether individual variation in plumage, behavior, and movement predicted hunting behavior and vineyard habitat use by adult male American barn owls (Tyto furcata) nesting in winegrape vineyards in Lodi, California, USA. We fitted GPS-accelerometer tags to 42 breeding males, quantified breast-plumage traits, measured neophobia using repeated novel object tests, and derived nightly movement metrics from GPS tracks and hidden Markov model-classified hunting locations. Several behavioral traits were repeatable, but movement traits showed the clearest repeatable individual …

Contribution Of Lagoon-Rearing Juvenile Chinook Salmon (Oncorhynchus Tshawytscha) To The Adult Spawning Population In The Mattole River, Emma Held

Cal Poly Humboldt theses and projects

Bar-built estuaries are rivermouth confluences characterized by periods of disconnection between the river and the ocean due to a sandbar that builds across the mouth. Sandbar timing characteristics vary between years and between systems, but when closed, a lake-like lagoon forms in the estuary footprint. The Mattole River has a bar-built estuary that forms in late spring or early summer, often overlapping with juvenile Chinook salmon outmigration. Juveniles that do not leave the river before the bar closes must remain in the lagoon until the mouth opens in fall. The purpose of this thesis was to understand if lagoon-rearing is …

Symmetry In Affiliative Interactions Of North American River Otters (Lontra Canadensis) In A Northern California Estuary, Charlotte E. Norman

Cal Poly Humboldt theses and projects

Patterns of participation in affiliative behaviors may reflect underlying social dynamics. Two affiliative behaviors, allogrooming and social play, were assessed for their symmetry, or relative participation of participants, in a wild group of North American river otters. Behavioral observations were conducted over five months at the Little River estuary in northern California using video recordings and all-occurrence sampling. Observations included all-adult groups, a family group consisting of a breeding female and two pups, and an extended family group with one or two helpers, indicative of cooperative breeding. Individuals engaged in allogrooming and social play were classified by their group membership, …

A Narrative Analysis Of Equity-Focused Cs Educators: A Multiple Case Illustration, Aleata Hubbard, Jen Tsan

Journal of Computer Science Integration

Background and Context. Equity-focused CS teaching is often prescribed as a solution for addressing disparities in K–12 CS participation and disengaging student experiences. However, adopting such an orientation can be challenging as it pushes educators to shift their teaching beliefs, identity, and practices. Objective. This study examines how the personal and professional experiences of four high school CS teachers influenced their paths to becoming equity-oriented practitioners. We illustrate variation in these developmental trajectories and advance theory building around equity-focused CS teacher identity development. Method. We utilized a multiple-case narrative inquiry approach, collecting data through in-depth, semi-structured interviews that included a …

Humanizing The Base Of The Pyramid: Exploring The Influence Of Resource (Dis)Advantages On Value Creation, Ted London, Lisa Jones Christensen, Tyson Mackey, Alison Mackey, Heather Esper, Andrew Grogan-Kaylor

Faculty Publications

Base of the pyramid (BoP) scholarship emphasizes the potential for enterprises to generate profits by enhancing the wellbeing of the impoverished, often by selling socially-beneficial products (SBPs). Yet, many such BoP enterprises have experienced mixed results. We argue that this may stem from insufficient attention to how BoP consumers value SBPs and other products. We frame SBPs as a type of human capital investment and thus use human capital theory to study how the consumption of SBPs does or does not create value for consumers. Specifically, we use a novel data set from rural India to measure value creation in …

Children And Adults Across 15 Countries Believe In Human Uniqueness Of Mind: A Cross-Cultural Investigation Of Cross-Species Mind Perception, Karri Neldner, Luke Maurits, Magie Junker, Lara Abbas, Nayrouz Abbas, Arianna Abis, Federica Amici, Bernardo Arroyo-Garcia, Negar Asghari, Giovanna Barragán Pardo, Zhen Zhang, Junior Peña Chumacero, Ardain Dzabatou, Dustin Eirdosh, Susan Hanisch, Tom Herrnsdorf, Tom Hovehne, Alicia Junker, Patricia Kanngiesser, Felipe Villa Larens, Safaa Mahmoud, Sandra Masaquiza, Iino Masato, Risma Illa Maulany, Tongtong Meng, Kardelen Mutlu, Putu Oka Ngakan, Ebru Peközer, Ljubica Petrović, Mirella Christy Rehatalanit

School of Psychology

The way humans relate to other animals is fundamentally shaped by whether we perceive ourselves as unique, with feelings and thoughts not shared by other animals. How beliefs about animals’ ability to feel and think develop across cultures remains largely unexplored. We asked children and adolescents (4–17 years, N = 1025) and adults (N = 190) from 33 urban and rural communities across 15 countries whether animals have thoughts or feelings (judgments of presence), and whether those thoughts or feelings are human-like (judgments of similarity). Bayesian analyses revealed that participants generally ascribed non-human animals the ability for thoughts and feelings. …

Others’ Requests May Dampen The Desire To Do Good: The Effect Of Requests On Children's Prosocial Motivation Across Five Cultures., Anneliese Skrobanek, Patricia Kanngiesser, Jahnavi Sunderarajan, Jorge David Mantilla Salgado, Saiwa Sisa Quimbo Yacelga, Shoji Itakura, Marie M. Morita, Masanori Yamaguchi, Nadia Chernyak, Lucy M. Stowe, Joscha Kärtner

School of Psychology

There exists cultural variation in how people react to prosocial obligations, but we still know little about when these differences emerge in development and how they can be explained. We investigated this in a study with 6- to 11-year-old children (N = 686) in five cultural contexts. Children listened to scenarios about spontaneous and requested (within-subjects) helping and sharing. They rated requested scenarios as less desirable and less satisfying, but there was significant cross-cultural variation in the magnitude of this effect, which was mostly stable with age. We also measured children's sense of individual agency and internalization of prosocial norms …