Digital Commons Network^™

Population And Breeding Ecology Of Sagebrush Steppe Songbirds, Kayla Ann Ruth

Graduate Student Theses, Dissertations, & Professional Papers

Sagebrush steppe is one of the most threatened ecosystems in North America. Domestic livestock grazing is the dominant land use of sagebrush steppe across the west. Rest-rotation grazing systems can be a conservation management tool, most recently, by the Natural Resource Conservation Service - Sage Grouse Initiative (SGI). The goal of SGI is to encourage private landowners to use a livestock grazing regime that maintains or improves habitat for greater sage-grouse (Centrocercus urophasianus), as well as improve rangeland productivity. Songbirds are biological indicators that can assess the health of sagebrush steppe. Avian adult density estimates are often used …

Sexual Dimorphism In Skeletal Trauma Associated With Intimate Partner Violence (Ipv), Keith Biddle

Graduate Student Theses, Dissertations, & Professional Papers

Once known as “Domestic Violence”, Intimate Partner Violence, or IPV, is a problem as old as humanity. Even in our modern era, it continues to plague even the most “enlightened” or “advanced” cultures and societies. Much has been written about the issue from Sociological and psychological aspects and while there is some consensus in the medical field regarding the patterns of injury associated with IPV, that consensus has yet to reach the field of forensic anthropology. It is to this end that this study has been conceived.

The proposed project has three parts. The first part is a validation study …

Can Nonhumans Be Victims Of Genocide?, Kirstin Waldkoenig

Graduate Student Theses, Dissertations, & Professional Papers

“Genocide” appears commonly in critical animal studies literature and sparsely in philosophy to describe human-caused violence against nonhuman beings. However, such uses of the term have rarely been informed by relevant work in genocide studies, nor otherwise formally substantiated. This thesis explores what is at stake when employing the term and proposes a model for appropriate application to nonhuman contexts. Claudia Card’s notion of genocide as social death allows for the consideration of nonhuman animals as victims of genocide. Social vitality is important to the lives of some nonhuman animals and its forcible diminishment results in social death for those …

Fear, Power, & Teeth (2007), Olivia Hockenbroch

Graduate Student Theses, Dissertations, & Professional Papers

Vagina dentata is the myth of the toothed vagina; in most iterations, it serves as a warning to men that women’s vaginas must be conquered to be safe for a man’s sexual pleasure (Koehler, 2017). The vagina dentata myth has been carried forth from ancient ancestors in numerous cultures all over the world (Koehler). It is one of many destructive cultural myths that guides discourses about sex and women’s bodies. In this paper, I explore a recent articulation of the myth, the 2007 film Teeth, and I argue that in this film, the vagina dentata is made more complicated. While …

Water Use In Confined Animal Feeding Operations (Cafos) In Minnesota: Who’S Keeping Track?, Dara Meredith Fedrow

Graduate Student Theses, Dissertations, & Professional Papers

Confined animal feeding operations (CAFOs) are highly concentrated feedlots that raise large numbers of livestock with an emphasis on efficiency and maximizing output. Hog and dairy feedlots in Minnesota are shrinking in number, yet growing in size. In hand with the rise of CAFOs, water scarcity is a growing concern as the effects of climate change worsen and the human population increases. Though Minnesota is a state of abundant water, it is not evenly distributed throughout the state raising concerns about sustainable water usage.

This paper describes and analyzes how Minnesota’s water appropriation permit system is overseeing water usage in …

Pressure To Support Meritocracy Vs. Nepotism, Linus Chan

Graduate Student Theses, Dissertations, & Professional Papers

Elite universities in the United States aim to admit the most qualified and competent students (meritocratic recruitment), but also prioritize admitting children of alumni via legacy programs (nepotistic recruitment). These two approaches to admissions are often at odds because the children of alumni might not be the most qualified applicants. What happens when people are forced to support an applicant who is meritocratic, nepotistic, both meritocratic and nepotistic, or neither? To examine this question, I had participants assume the role of an admissions counselor in an admissions committee tasked with picking one top student to admit. I predicted …

Probing Earth Deformation In Response To Localized Hydrologic Mass Loading, Susitna River Basin, Alaska, Andrew Parker Keene

Graduate Student Theses, Dissertations, & Professional Papers

Surface mass loading contributes a ubiquitous signal to GPS time series that can be modeled and removed for individual sources. We utilize nine GPS stations in the Susitna River watershed, Alaska, to investigate surface displacements from surface mass loading. We find that modeling atmospheric surface pressure and regional hydrologic mass reduces root mean square (RMS) error by 27-39% for all GPS time series. We observe moderate correlation between residual time series pairs and distance, with elevation differences influencing the strength of this correlation. Seasonal horizontal and vertical displacements are observed after removal of all loading models; stations displace downward and …

Service Failure Management In High-End Hospitality Resorts, Hunter A. Dietrich

Graduate Student Theses, Dissertations, & Professional Papers

The purpose of this study was to better understand the interactions that occur at high-end resorts during service failures that guests sometimes experience during their stay. Both service-failure managers and guests who had experienced service failures during their stay at a high-end resort were interviewed to examine the service recovery techniques and timing strategies (such as the ex-antecrisis crisis timing strategy) that are perceived to be the best methods to correct service failures during a guest’s stay. In comparing the responses from service recovery managers and guests, commonalities were found regarding the best practices for ways to treat guests during …

Pattern-Process Linkages In Forested Ecosystems, Eryn Elizabeth Schneider

Graduate Student Theses, Dissertations, & Professional Papers

Ecological pattern-process linkages have been called the Rosetta’s stone of ecology. The pattern-process linkage is a feedback whereby ecosystem processes drive structural patterns, and vegetation patterns also strongly influence vital ecosystem processes. The role of competition and gap dynamics in creating spatial heterogeneity was assessed in Sitka-spruce western hemlock forests. Results indicated that despite low species richness, these forests are structurally diverse with the spatial imprint of competition obscured by gap dynamics through stand development. The influence of forest structural and spatial heterogeneity on snow accumulation and persistence was examined in a mixed-conifer forest. Tree neighborhood type (open, clump, individual) …

Treating Trauma Within Rural Schools: An Implementation Science Perspective, Heather Marie Halko

Graduate Student Theses, Dissertations, & Professional Papers

High rates of childhood trauma exposure (65-75%) are concerning given the negative outcomes associated with trauma-related symptoms. Numerous evidence-based practices (EBPs) have been developed to treat posttraumatic stress symptoms; however, schools often experience barriers to implementing these interventions with fidelity. Given the scarcity of service options within rural areas, this qualitative study explored factors that might influence the adoption and implementation of trauma-focused interventions within rural schools using the Consolidated Framework for Implementation Research (CFIR; Damschroder et al., 2009) and the Implementation Outcomes Framework (IOF; Proctor et al., 2011). A semi-structured protocol was used to interview clinicians working in rural …

Cognitive Impacts Of Age Based Stereotype Threat In Older Adults, Cali Caughie

Graduate Student Theses, Dissertations, & Professional Papers

The present study examined the effects of age-based stereotype threat (ABST) exposure on cognitive performance in older adults. Forty-nine community volunteers age 65 and older were stratified by age and gender and then randomly assigned to either an ABST group or a Control group. The ABST group read a paragraph describing the expected negative effects of age on cognition and the prevalence of Alzheimer’s disease in older adults. Participants in the Control group read a neutral paragraph of similar length and difficulty. It was hypothesized that individuals in the ABST group would perform worse on neuropsychological testing than individuals in …

Xflow: An Algorithm For Extracting Ion Chromatograms, Mathew M. Gutierrez, Rob Smith

Graduate Student Theses, Dissertations, & Professional Papers

Abstract: Mass spectrometry is a fundamental tool for modern proteomics. The increasing availability of mass spectrometry data paired with the increasing sensitivity and fidelity of the instruments necessitates new and more potent analytical methods. To that end, we have created and present XFlow, a feature detection algorithm for extracting ion chromatograms from MS1 LC-MS data. XFlow is a parameter-free procedurally agnostic feature detection algorithm that utilizes the latent properties of ion chromatograms to resolve them from the surrounding noise present in MS1 data. XFlow is designed to function on either profile or centroided data across different resolutions and instruments. This …

Understanding Tourism Within A Social-Ecological System: Ometepe Island, Nicaragua, Chelsea Leigh Leven

Graduate Student Theses, Dissertations, & Professional Papers

Tourism endures as a major component of development strategies worldwide, despite a dearth of documented successes. Tourism failures arise in part from simplistic and reductionist approaches to sustainability and tourism. Successfully implementing tourism to support sustainable futures requires, at a minimum, a more holistic and complex conceptualization than tourism currently receives, including recognition of how human values shape a system. To achieve a more complex understanding of tourism, I analyzed tourism through a social-ecological system (SES) perspective using the paradigm of resilience thinking. Through a case study in Ometepe, Nicaragua, my research considered opportunities for tourism contributions to sustainable futures …

Does Meeting Expectations Of Relative Income Improve Well-Being?, Justin Tyler Stevens

Graduate Student Theses, Dissertations, & Professional Papers

In recent years economists began studying subjective well-being thoroughly, and often find a certain set of variables affect subjective well-being. Relative income is one variable which is regularly found to strongly influence subjective well-being in many different settings around the world. This study investigates whether or not meeting one’s expectations for relative income change affects subjective well-being by taking advantage of individual level panel survey data from South Africa. A fixed effects model is used to eliminate unobservable fixed effects and estimate the effect of moving from the ‘met expectations’ category in time period one, to ‘below expectations’ or ‘above …

State Regulated Relationships: Mothers' Experiences Of Partner Incarceration, Hannah Brianne Fields

Graduate Student Theses, Dissertations, & Professional Papers

The effects of incarceration on families have been studied in-depth, but little research evaluates the effects on women parenting children after the incarceration of their romantic partner. This research evaluates how mothers manage to keep their families intact throughout the duration of their partner’s incarceration. I approached this question using a geography theory of care developed by Sophie Bowlby and Linda McKie. This theory states that the quality of care is dependent on the space in which it is provided, the social expectations within the caring environment, and the amount of time required to provide or receive care. Using this …

Why The Weird Wings? Investigating The Morphology, Function, And Evolution Of Unusual Feathers In Pigeons And Doves (Columbidae), Robert Lawrence Niese

Graduate Student Theses, Dissertations, & Professional Papers

The feathers of the wing that power flight in birds (the remiges) are morphologically constrained by the demands of aerial locomotion, but peculiar morphologies exist in many taxa in spite of these constraints. In the family Columbidae (pigeons and doves) in particular, we found that atypical remex morphologies have evolved dozens of times and occur in over a third of all species in the family. In members of the genus Columbina, we tested the sound-producing abilities of modified P7 feathers and determined that they are sonations that serve a signalling function during flight. In 56 species we identified a highly-attenuated …

The Effects Of Argentine Tango On Balance And Quality Of Life In Subjects With Traumatic Brain Injury, Pamela Marie Peterson

Graduate Student Theses, Dissertations, & Professional Papers

This study investigated the effect of a six-week tango-based intervention on the balance and quality of life on subjects with traumatic brain injury (TBI). Twenty-two men and women were assigned into three groups TBI group (TBI: n=2; 44.5±2.1 years), Treatment control (TC: n=8; 30.9±12.3 years), Control (CG: n=12; 32.8±9.6 years). The TC group showed an improvement in stress levels compared to the CG p

Ecological Stoichiometry In Watersheds: From Land To Water In The Qinghai Lake Basin, Ze Ren

Graduate Student Theses, Dissertations, & Professional Papers

We examined the influences of grassland status (as indexed by normalized difference vegetation index, NDVI) on carbon (C), nitrogen (N), and phosphorus (P) concentrations and stoichiometry, nutrient limitation, as well as microbial community structure in soil, stream, and/or lake ecosystems in the Qinghai Lake watershed, where grassland is the dominant landcover and more than half of the grassland is degraded.

Chapter 2 showed that grassland degradation decreased C and N concentrations as well as C:N, C:P, and N:P ratios in soil. Moreover, grassland degradation decreased C, N, and P concentrations and influenced C:N and N:P ratios in soil microbial biomass. …

A Dual State Hierarchical Ensemble Kalman Filter Algorithm, William J. Cook, Jesse Johnson, Marko Maneta, Doug Brinkerhoff

Graduate Student Theses, Dissertations, & Professional Papers

Dynamic models that simulate processes across large geographic locations, such as hydrologic models, are often informed by empirical parameters that are distributed across a geographical area and segmented by geological features such as watersheds. These parameters may be referred to as spatially distributed parameters. Spatially distributed parameters are frequently spatially correlated and any techniques utilized in their calibration ideally incorporate existing spatial hierarchical relationships into their structure. In this paper, a parameter estimation method based on the Dual State Ensemble Kalman Filter called the Dual State Hierarchical Ensemble Kalman Filter (DSHEnKF) is presented. This modified filter is innovative in that …

Genomic Inference Of Inbreeding In Alexander Archipelago Wolves (Canis Lupus Ligoni) On Prince Of Wales Island, Southeast Alaska, Katherine Emily Zarn

Graduate Student Theses, Dissertations, & Professional Papers

Habitat loss and climate change are increasingly resulting in reduction and fragmentation of wildlife populations. Populations that have experienced fragmentation and decreases in abundance are at heightened risk of inbreeding due to reduced opportunities to mate with unrelated conspecifics. Prolonged or extensive inbreeding can result in inbreeding depression via the exposure of deleterious alleles in long runs of homozygosity. Alexander Archipelago wolves (Canis lupus ligoni) on Prince of Wales Island (POW) in Southeast Alaska are a small, isolated population of conservation concern that have experienced habitat loss and high harvest rates, and present an ideal system in which …

Optimization Of Simulations In Opensimpplle, Robin Lockwood

Graduate Student Theses, Dissertations, & Professional Papers

Computer software has become an integral tool in exploring scientific concepts and computational models. Models, such as OpenSIMPPLLE, use a complex set of rules developed by experts to predict the impact of fires, disease, and wildlife on large scale landscapes.

OpenSIMPPLLE’s simulations are time-consuming when projecting far into the future. OpenSIMPPLLE needs to execute more efficiently to allow for faster completion of simulations. The increase in speed will also enable users to run simulations with more timesteps in shorter periods. There are plenty of ways to accomplish this.

The work described here identifies three different methods for increasing efficiency. The …

Utilization Of Various Methods And A Landsat Ndvi/Google Earth Engine Product For Classifying Irrigated Land Cover, Andrew Nemecek

Graduate Student Theses, Dissertations, & Professional Papers

Methods for classifying irrigated land cover are often complex and not quickly reproducible. Further, moderate resolution time-series datasets have been consistently utilized to produce irrigated land cover products over the past decade, and the body of irrigation classification literature contains no examples of subclassification of irrigated land cover by irrigation method. Creation of geospatial irrigated land cover products with higher resolution datasets could improve reliability, and subclassification of irrigation by method could provide better information for hydrologists and climatologists attempting to model the role of irrigation in the surface-ground water cycle and the water-energy balance. This study summarizes a simple, …

Toward A Comprehensive Worldview Measure, Shailee R. Woodard

Graduate Student Theses, Dissertations, & Professional Papers

Worldview is an individual difference construct that has been linked to various behavioral and health outcomes. However, very little is known about how worldviews develop and how worldview beliefs, values, and attitudes coalesce into different worldview factors. One obstacle that has impeded research on worldviews is the lack of a robust worldview measure. The creation of a new, more valid worldview measure will aid in answering these important questions. This research project is the first step in the creation of a more comprehensive worldview measure. The primary aims of Study 1 were to compile existing published worldview measures and reduce …

Patient Perspectives Of An Intensive Comprehensive Aphasia Program For Stroke Survivors, Anya A. Leyhe, Catherine A. Off, Carolyn R. Baylor, Jenna R. Griffin, Kirsten W. Murray

Graduate Student Theses, Dissertations, & Professional Papers

Introduction: Persons with aphasia (PWA) who participate in intensive comprehensive poststroke language rehabilitation programs make a variety of significant investments. While intensive aphasia programs and intensive comprehensive aphasia programs (ICAPs) are becoming increasingly prevalent across health care settings, patient perspectives of ICAPs have not been explored. The purpose of this qualitative study was to examine patient perspectives about the experience of participating in an ICAP at the University of Montana. The primary research question of this study was: “what is it like to be a PWA in an ICAP?” Methods: Researchers used an interpretive phenomenological approach to conduct …

Causes Of Variation In Dispersal Distance In The Stream Salamander Gyrinophilus Porphyriticus, Brett Rebekah Addis

Graduate Student Theses, Dissertations, & Professional Papers

Dispersal is expected to evolve as an adaptive mechanism to optimize individual fitness across the landscape. While there is evidence that active dispersers base emigration decisions (i.e., stay vs. leave) on perceived costs associated with environmental variation and inbreeding, it is less well understood how and whether these same factors influence dispersal distances– a more comprehensive measure of dispersal. More generally, the challenge of quantifying dispersal in the field has resulted in a paucity of data on the fate and fitness of dispersing individuals, leaving us with little understanding of the factors influencing individual variation in dispersal distance.

In my …

The Forever Baby, Carlos Javier Medina

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

The Work Of The Living, D'Addario, Thomas J. D'Addario

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Ugly, Odd, And Gorgeous, Joseph Chamberlain Kirk Iii

Graduate Student Theses, Dissertations, & Professional Papers

Ugly, Odd, and Gorgeous is a collection of excerpts from a longer, in-progress work of nonfiction that explores the valences of home, family, and the places we find them.

The Kite And The String: Why Philosophy Needs More Storytellers, Mason James Voehl

Graduate Student Theses, Dissertations, & Professional Papers

This thesis seeks to explore the relationship between philosophy and storytelling as grounded in their shared task of instructing readers in how to live a rich and moral life. Using a combination of narratives and the philosophical theories of Martha Nussbaum, Edward Mooney, and Iris Murdoch, I claim that philosophy and storytelling ought to be natural allies rather than territorial enemies as each reveals and attends to separate but equally important aspects of the good life in community with others. I then extend this claim into the context of environmental philosophy, using the work of writer Jason Mark as an …

Development Along Rattlesnake Creek: An Assessment Of Stream Health, Channel Form, And Land Cover, Christopher D. Miller

Graduate Student Theses, Dissertations, & Professional Papers

Using existing water quality data, historical aerial photographs, and recent orthoimagery, this research assessed how the environmental conditions of Rattlesnake Creek near Missoula, Montana have changed over nearly 90 years of human alteration of the Rattlesnake valley. To characterize stream health, the following indicators were investigated: fish genetic composition and species distribution, water temperature, streamflow, and nutrient levels. Five overlapping aerial photos from 1929 were georectified and compared to 2015 orthoimagery to assess changes in channel form (particularly channel straightening) and land cover across the Rattlesnake Creek valley bottom. Results indicate that trout species in Rattlesnake Creek have hybridized, in …