Digital Commons Network^™

Detecting Simulated Memory Impairment In College Students With The Progressive Visual Memory Test (Pvmt): Validation Of A New Test Of Performance Validity, Brook Elizabeth Clark

Graduate Student Theses, Dissertations, & Professional Papers

The detection of exaggerated or feigned symptoms is a complex issue that neuropsychologists regularly encounter during neuropsychological evaluations. Thus, it is critical that tests that are capable of detecting false impairments continue to be developed. To that end, a new test of malingered memory performance was researched. The Progressive Visual Memory Test (PVMT) uses a forced-choice (2-choice) paradigm but adds to the literature by including 3-choice and 4-choice trials. A simulation design was conducted in which college students (N = 62) acted as uncoached simulators, coached simulators, and controls. A two-way ANOVA explored the impact of group and trial on …

Managing Forest Disturbances: Effects On Mule Deer And Plant Communities In Montana's Northern Forests, Teagan Ann Hayes

Graduate Student Theses, Dissertations, & Professional Papers

Mule deer (Odocoileus hemionus) are frequently the focus of population and habitat management in the western United States. Land and wildlife managers use disturbance to reset forests to earlier successional stages and improve the quality and quantity of forage available to mule deer. However, the effects of management practices on nutrition and selection vary widely, so the implementation of management practices raises ecological as well as management-related concerns. This work investigated how disturbance from wildfire, prescribed fire, and timber harvest influences the spatial and temporal distribution of nutritional resources in mule deer summer range, and therefore, how the …

How The West Was Fun: Constructing The Western Tourism Experience In The Yellowstone Wylie Camps, 1880-1916, Jennifer E. Simpson

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Optimizing The Use Of Wildlife Monitoring Resources, Charles Raymond Henderson Jr.

Graduate Student Theses, Dissertations, & Professional Papers

Accurate knowledge regarding trends in the abundance of wildlife populations provides a foundation for the understanding of wildlife ecology and effective wildlife management. Abundance estimates enable managers and researchers to track the status of wildlife populations, supply information on which to base wildlife management decisions, and provide a metric to assess the outcome of specific management actions. Consequently, accurate estimates of abundance provide essential knowledge for managing wildlife populations effectively. However, the amount of resources available for monitoring wildlife populations is limited and often fluctuates in response to changes in annual budgets. Therefore, agencies responsible for the management of wildlife …

Development And Application Of A Catchment Scale Sediment Routing Model, Jordan T. Gilbert

Graduate Student Theses, Dissertations, & Professional Papers

Sediment regimes, i.e., the processes that recruit, transport and store sediment, create the physical habitats that underpin river-floodplain ecosystems. Natural and human-induced disturbances that alter sediment regimes can have cascading effects on river and floodplain morphology, ecosystems, and a river’s ability to provide ecosystem services, yet prediction of the response of sediment dynamics to disturbance is challenging. We developed the Sediment Routing and Floodplain Exchange (SeRFE) model, which is a network-based, spatially explicit framework for modeling sediment recruitment to and subsequent transport through drainage networks. SeRFE additionally tracks the spatially and temporally variable balance between sediment supply and transport capacity. …

Investigating Wildfire As A Catalyst For Community-Level Resilience, Lily J. Clarke

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Wilderness Recreation Trends And Impacts: A Case Study Of The Sawtooth Wilderness, Chelsea E. Phillippe

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

College Students' Social Media Uses And Affective Correlates, Jennifer L. Lippold

Graduate Student Theses, Dissertations, & Professional Papers

Given the high prevalence of mental health conditions such as depression and anxiety among college students, research on social media use, a salient feature of the modern college experience, is increasingly warranted. While research documents a link between negative psychological symptomology and social media use, few studies have examined what specific patterns of use may be more or less harmful than others. Therefore, the present study investigated whether specific types of social media use (socially oriented uses, information seeking uses, and entertainment uses) are more or less strongly associated with affective variables (depression, anxiety, positive affect, and negative affect). Utilizing …

A Health Needs Assessment Of People Living With Hiv In Montana, Sabrina Singh

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Developing A Decision-Making Framework For Assisted Migration: Applying This To The American Pika And Whitebark Pine, Mia Kimya Hedayat-Zedah

Graduate Student Theses, Dissertations, & Professional Papers

ABSTRACT

Hedayat-Zadeh, Mai Kimya, Degree, May 2020 Environmental Studies

Developing a Decision-Making Framework for Assisted Migration: Applying this to the

American Pika and White Bark Pine

This paper analyzes a novel conservation strategy: assisted migration (AM). AM is the practice of moving a highly vulnerable (i.e., endangered) species impacted by climate change and other exacerbating factors (e.g., land use), out of its historic range to a recipient site. Ideally, this site would be one where the species would have migrated, were there no barriers to dispersal or anthropogenic stressors. The paper is concerned with the readiness of the conservation community—particularly …

Evaluation Of The Watershed Education Network's Fish Week Program, Rennie Ann Winkelman

Graduate Student Theses, Dissertations, & Professional Papers

The Watershed Education Network (WEN) is a nonprofit environmental education program that aims to foster knowledge, appreciation, and awareness of watershed health through water-based education programs and field science experiences. Their Fish Week program for 7^th graders at Washington Middle School has an overarching theme of watershed and ecosystem health and includes an introduction to aquatic invertebrates, native fish, fish habitats, bugs and dry fly comparison, and an introduction to fly fishing. This is a formative, outcome-based evaluation of the Fish Week program. I used pre and post program survey data from 2017 and 2018 as well as survey …

Leadership In Higher Education And The Impact On Faculty Satisfaction And Retention, Theresa A. Petersen

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Teacher Support: A Study About Teacher Emotional Support And Engagement Among Middle School Boys, Melissa Johnson

Graduate Student Theses, Dissertations, & Professional Papers

Engagement in school has been recognized as important for achievement in multiple ways, and yet adolescent boys have been observed to be less engaged in school than their female peers. Boys are less motivated than girls, spend less time on homework, and have lower expectations of themselves (Barber, 1996). Boys experience the following school and personal events at rates higher than girls: discipline referrals, suspensions, failing and near-failing grades, and also suicide. This study examined the differential responses between boys and girls in terms of perceived teacher support and student engagement.

The study began with an initial survey distributed to …

Global And Regional Perspectives On Large-Landscape And Transboundary Conservation, Sanober R. Mirza

Graduate Student Theses, Dissertations, & Professional Papers

With the growing pressure of environmental degradation and exploitation to social and ecological landscapes around the world, conservationists are looking for new approaches to address the complex nature of transboundary issues. Large-landscape conservation supports conservation and management of ecosystems, wildlife, and resources in a more holistic approach that extends beyond protected area boundaries. Transboundary conservation, a distinct form of large-landscape conservation, operates across political and spatial scales by involving two or more countries cooperating to protect a border resource or ecosystem. Though the recognition of large-landscape and transboundary conservation is growing, there is limited understanding of trends across these types …

Leadership In Higher Education And The Impact On Faculty Satisfaction And Retention, Theresa Petersen, Frances O'Reilly

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Flowers From The Devil: An American Opiate Crisis, The Criminalization Of Marijuana, And The Triumph Of The Prohibition State, 1840-1940, Clinton David Lawson

Graduate Student Theses, Dissertations, & Professional Papers

This dissertation focuses on historic changes in public perception of narcotic use and abuse from the mid-nineteenth century to the mid-twentieth. From the 1840s to the outbreak of Civil War, politicians, physicians, the general public, and state and federal government remained largely ambivalent on the topic of drug use. Opium, morphine, and cannabis were legal, widely available in American pharmacies, and touted as essential medicines. Within the Bohemian community, artists and writers experimented with the recreational use of cannabis and their accounts of that style of consumption filled the pages of Harper’s, The New Yorker, and a host of other …

Developing Tools To Understand Stress And Nest Abandonment In Birds, Hannah Elena Beyl

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

The Nmda Receptor Coagonists L-Glutamate And D-Serine, Denis Mikhailovich Shchepakin

Graduate Student Theses, Dissertations, & Professional Papers

Glutamate is the predominant excitatory neurotransmitter in the mammalian central nervous system. Glutamate release and reuptake control both tonic activation of glutamate receptors and phasic signaling during synaptic transmission. Here we study different aspects of the system. The first three chapters focus on the most abundant glutamate transporters found in the brain, excitatory amino acid transporters 1-3 (EAAT1- 3/SLC1A3,2,1). The last chapter is devoted to a paralogous neutral amino acid transporter (ASCT1/SLC1A4) and its role in transport of D-serine, a coagonist of the N-methyl-Daspartate (NMDA) glutamate receptor.

In the first chapter, we discuss the existing discrepancy in estimates of EAAT1-3 …

Impacts Of Environmental Variables On Deer Mouse Survival In The Southwestern United States, Emily C. Weidner

Graduate Student Theses, Dissertations, & Professional Papers

North American deer mice (Peromyscus maniculatus) are the primary reservoir for Sin Nombre orthohantavirus, and they play a significant role in the maintenance and transmission of disease across the landscape. Vital rates, such as survival, are a key component to understanding how disease spreads in a population. Understanding environmental factors that influence survival may allow for development of a predictive model that can assess disease risk in deer mice and, thus, a corresponding increased disease risk for humans. Our work explored the relationship between deer mouse survival and environmental variables at three long-term small mammal trapping sites in …

The Phenotypic Flexibility Of Thermogenic Capacity: From Physiological Mechanism To Evolutionary Implications, Maria Stager

Graduate Student Theses, Dissertations, & Professional Papers

Individuals face many selection pressures that change throughout their lives. Phenotypic flexibility, the ability to flexibly and reversibly modify a trait value, is one way an individual can optimally match its phenotype to the prevailing environmental conditions. In this dissertation, I used juncos as a lens to understand the causes of variation in flexibility within physiological systems and among individuals. In my first chapter, I investigated how Dark-eyed Juncos (Junco hyemalis) alter mechanisms of heat production and heat conservation to cope with variation in ambient conditions. My results demonstrate the ability of birds to adjust thermoregulatory strategies in response to …

Drug Policy: The Effect Of Medical Marijuana On Opioid Consumption During The Us Opioid Epidemic, Jonathon David Knudson

Graduate Student Theses, Dissertations, & Professional Papers

The introduction and subsequent over-prescribing of extended-release opioids in the United States resulted in a large rise in both addiction and overdose. Recognition and regulation of these new drugs as addictive did little to control the supply of opioids to Americans while Prescription Drug Monitoring Programs and Abuse Deterrent reformulations had limited effect to control the problem. Simultaneously, states like Michigan and Rhode Island legalized medical marijuana through voter referenda opening the door for a new approach to pain management. Recent research has found medical marijuana has proven an effective treatment for conditions such as chronic pain and PTSD and …

Buffalo Renaissance: The Northern Plains Tribes' Path To Self-Determination, Elizabeth Louise Johns

Graduate Student Theses, Dissertations, & Professional Papers

This long-form journalistic story and photo essay is about the Blackfoot Tribes in the United States and Canada and their efforts to restore bison to their land, their diet, and their culture. In 2014, ten tribes from the United States and Canada came together at Blackfeet Nation in Browning, Montana to sign the Buffalo Treaty, a commitment to bringing wild buffalo back to parts of their historical range. The Treaty signing marked the first time in more than 150 years that a diverse group of tribes, some historical enemies, came together in the name of restoring the animal they evolved …

Be Creative Now: Seeking Creativity, Sam Kulla

Graduate Student Theses, Dissertations, & Professional Papers

A self-guided framework for professional and personal creative development including a series of five lesson activities geared towards developing a personal concept of creativity, with links to creativity videos, inclusive design features, and an annotated bibliography. In addition to guiding self-study, this document could be adapted into a syllabus for an online course.

Using Satellite Observations Of Soil Moisture To Improve Modeling Of Terrestrial Water Cycles, Colin W. Brust

Graduate Student Theses, Dissertations, & Professional Papers

Terrestrial evapotranspiration (ET) describes the flux of water from the Earth’s surface to the atmosphere, calculated as the sum of evaporation from soil and leaf surfaces, and transpiration through plant stomata. ET is the largest terrestrial water flux, returning over half of the precipitation that falls on land back to the atmosphere, annually. Additionally, ET plays a key role in Earth’s carbon, water, and energy cycles, linking them together via the movement of water and CO₂ through plant stomata. Because of its important role in these Earth system processes, it is essential that existing methods of measuring and modeling …

A Deep Learning Approach To Mapping Irrigation: U-Net Irrmapper, Thomas Henry Colligan Iv

Graduate Student Theses, Dissertations, & Professional Papers

Accurate maps of irrigation are essential for understanding and managing water resources in light of a warming climate. We present a new method for mapping irrigation and apply it to the state of Montana over the years 2000-2019. The method is based on an ensemble of convolutional neural networks that only rely on raw Landsat surface reflectance data. The ensemble of networks method learns to mask clouds and ignore Landsat 7 scan-line failures without supervision, reducing the need for preprocessing data or feature engineering. Unlike other approaches to mapping irrigation, the method doesn't use other mapping products like the Cropland …

Decoupled Diel Solutes: Linking Primary Production And Nitrate Uptake In A Montane Stream, Kimberly Bray

Graduate Student Theses, Dissertations, & Professional Papers

Tight coupling of surface water diel dissolved oxygen (DO) and nitrate-N (NO₃-N) signals reflects stoichiometric demand of carbon and nitrogen in stream ecosystems. However, DO and NO₃-N can become decoupled due to alternative drivers of diel solutes, resulting in conflicting estimates of stoichiometric and modeled NO₃-N uptake. In this study, I measured benthic biomass, hydrology, and dissolved solutes in a montane stream located in western MT over a growing season (June-October 2019). Daily stream metabolism and NO₃-N uptake were modeled using a single-station open-channel approach. Timing and amplitude of key diel signals …

Worth A Dam: Glacier View And The Preservation Of Wild America, Shawn Patrick Bailey

Graduate Student Theses, Dissertations, & Professional Papers

Conceived in the mid-1930s and formally proposed in 1943, the Glacier View Dam was an Army Corps of Engineers’ proposal for the North Fork of the Flathead River in northwestern Montana. This 416-foot tall dam would have provided inexpensive hydroelectric power to the region and helped control flooding on the volatile Columbia River watershed. Glacier View would also have flooded 20,000 acres of Glacier National Park, one of the “crown jewels” of the national park system. An ideologically diverse coalition of National Park Service officials, wilderness activists and outdoor recreation enthusiasts organized the defense of Glacier National Park and convinced …

Heat For The Masses: Thermal Ecology Of The Western Tent Caterpillar, Victoria Dahlhoff

Graduate Student Theses, Dissertations, & Professional Papers

A unique feature of some gregarious, colonial insects is their ability to create external structures that alter environmental conditions for the entire (often family) group. A combination of physical alteration of local microhabitats and behavioral thermoregulation allows many of these animals to actively control their body temperatures, which allows them to regulate energy use and metabolism in variable thermal environments. Here I describe mechanisms of microhabitat modification and thermal regulation in the western tent caterpillar, Malacosoma californicum pluviale. Tent caterpillars build communal silk tents, whose temperatures can rise substantially above ambient air temperature. I experimentally manipulated colony sizes and examined …

A Conservation Marketing Toolkit: Systematic Literature Mapping, Microtargeting Conservation Easements, And Conservation Corridor Prioritization, Hannah Josie Leonard

Graduate Student Theses, Dissertations, & Professional Papers

In a changing world with limited resources for conservation efforts, conservationists, wildlife managers, and land managers must look for creative ways to realize conservation goals. A new wave of conservationists is investigating how other disciplines, namely psychology and marketing, might improve our ability to understand and change conservation-related human behavior. In this thesis, I review existing applications of “conservation marketing” and apply a subset to advance two specific conservation challenges. In Chapter 1, I present a systematic mapping of the conservation marketing literature to understand the lay of the land in how conservationists have already applied marketing techniques to conservation, …

Descriptive Statistic Characteristics Study For Level 4 Frontier High Schools In Montana, Jacqueline May Gorshe

Graduate Student Theses, Dissertations, & Professional Papers

Frontier high schools in Montana have a degree of isolation that presents unique challenges setting them apart from their rural, and especially their urban, counterparts. Unfortunately, a one-size-fits-all approach hinders their voices being heard in professional development and policy decision making. This dissertation provides a profile of these high schools and their communities using four social determinants of health: education, access to health care, economics, and behavioral risk factors through mixed methods approach with descriptive statistics and high school principal survey responses. The results of this approach revealed frontier high schools have small class sizes and low teacher-student ratios, but …