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Estimating The Effects Of Overstory Retention, Vegetative Competition, And Site Quality On The Height Growth Of Small Ponderosa Pine Trees Using Regression Quantiles, Colin P. Kirkmire

Graduate Student Theses, Dissertations, & Professional Papers

Ponderosa pine (Pinus ponderosa C. Lawson) forests in the Inland Northwestern region of the US are increasingly managed under multi-aged silvicultural systems that provide stand structure for wildlife habitat, timber production, enhanced aesthetic, or restoration of presettlement conditions (O'Hara 2005). Partial retention harvest, where an element of the previous stand's overstory structure is retained, is commonly used to achieve a multi-aged stand structure. However, little is known about how ponderosa pine trees in the understory respond to overstory and understory competitive factors following partial retention harvest. The height growth of small trees was hypothesized to be influenced by site …

Subjective Experience Of Empathy In Schizotypy Elicited By Literary Fictional Narrative, Christa "Anahata" Neuman

Graduate Student Theses, Dissertations, & Professional Papers

The elaborate and multidimensional systems that are involved in the personal and subjective experience of empathy are largely unexplored. Nevertheless, when empathy is measured as a static trait there is considerable evidence that individuals diagnosed with schizophrenia and schizotypy demonstrate altered and reduced empathic abilities respectively (Thirioux, 2014). The aim of this study was to investigate the effect that the context of reading literary fiction has on a portion of the process of empathic responding in relation to schizotypal traits, taking into consideration personal factors including current mood. A new measure for the use of momentary assessment of empathy was …

An Investigation Of The Effects Of Depressive-Rumination On Prospective Memory, Mark Primosch

Graduate Student Theses, Dissertations, & Professional Papers

Depression is related to prospective memory (PM) impairment. However, the research on depression-related PM impairment remains inconclusive. No study to date has taken into account the possible effects of depressive-rumination, which is known to impair executive functions underlying PM. The current study addresses this gap in the literature. Participants: Participants were grouped according to self-reported depression severity per the Beck Depression Inventory-Second Edition (BDI-II). Fifty-five individuals with low (BDI-II < 8), 17 individuals with moderate (BDI-II 9-18), and 16 individuals with high (BDI-II > 19) symptoms of depression were included in the study. Method: Participants completed demographic and trait and state rumination questionnaires. Participants within each …

Assessing Riparian Ecosystem Condition And Monitoring Recovery From Natural And Anthropogenic Disturbance, Rachel Powers

Graduate Student Theses, Dissertations, & Professional Papers

Riparian ecosystems are the transition zones between river systems and uplands. They provide many valuable ecological functions including creating habitat for wildlife, stabilizing banks from erosion and providing a buffer that prevents excess nutrients from entering streams. Fires and other disturbances alter the function of these ecosystems. Currently, there is a lack of broadly used standardized assessments and monitoring methods in riparian areas within our current water policy framework. This study aims to examine this gap in riparian ecosystem protection by reviewing the assessment methods currently in use, selecting one method for field testing, and analyzing the effort involved in …

The Last Best Hope: Are Voluntary Conservation Agreements Effective Tools For Protecting Imperiled Species?, Sophie B. Tsairis

Graduate Student Theses, Dissertations, & Professional Papers

Candidate Conservation Agreements with Assurances, or CCAAs, are little known, voluntary conservation agreements that protect imperiled wildlife on private lands. These agreements have emerged over the past decade and have had mixed results in providing adequate protections for candidate species.

Landowners, private industries, state and federal agencies, and environmental nonprofits, are using CCAAs as tools to eliminate the need for an endangered species listing. An Endangered Species Act listing can lead to land-use uncertainty for private landowners and this threat is the main incentive to enroll in a CCAA. When landowners enroll in CCAAs they are agreeing to provide specific …

Epistemically Detrimental Dissent In Climate Science, Iheanyi Amadi

Graduate Student Theses, Dissertations, & Professional Papers

Dissent, criticism and controversy are integral to scientific practice, especially when we consider science as a communal enterprise. However, not every form of dissent is acceptable in science. The aim of this paper is to characterize what constitutes the kind of dissent that impedes the growth of knowledge, in other words epistemically detrimental dissent (EDD), and apply that analysis to climate science. I argue that the intrusion of non-epistemic considerations is inescapable in climate science and other policy-relevant sciences. As such there is the need to look beyond the presence of non-epistemic factors (such as non-epistemic risks and economic interests) …

An Investigation Into The Relative Importance Of Civil Institutions On Subjective Well-Being, Samuel Fleming

Graduate Student Theses, Dissertations, & Professional Papers

Poverty is not a material problem; in fact, it is a much greater problem, the problem of social, natural, and economic disconnect from the institutions of stability, wealth, justice, and well-being. When considering human flourishing, we must look beyond the material at “lives that are not necessarily morally good, but good for us” (Tiberius, 2006, p. 493). In the vein of Sen’s Capabilities Theory, this paper uses subjective well-being as a comprehensive measure of an individual’s life and circumstances examines how civil institutions impact an individual’s non-monetary welfare function. This paper conducts a series of regression models in an attempt …

Are Maximum Ground Forces And Leg Compression In Phase? A Test Of The Classical Spring Mass Model Of Running Gaits, Seth Donahue

Graduate Student Theses, Dissertations, & Professional Papers

The mechanical understanding of human running has classically been described as a spring-mass system, with subsequent models predicting the movements of the body’s center of mass and the forces applied by the leg against the ground. A central requirement of any spring system is the phasic relationship between the length of the elastic elements and the forces applied to these structures. Specifically, elastic elements compress under load and extend as the load is released. We tested whether this model applies to individuals with specialization for extreme performance in human gait. Recent work from elite level sprint runners suggest that their …

The Ecology And Evolution Of Avian Alarm Call Signaling Systems, Alexis Chandon Billings

Graduate Student Theses, Dissertations, & Professional Papers

Communication is often set up as a simple dyadic exchange between one sender and one receiver. However, in reality, signaling systems have evolved and are used with many forms and types of information bombarding multiple senders, who in turn send multiple signals of different modalities, through various environmental spaces, finally reaching multiple receivers. In order to understand both the ecology and evolution of a signaling system, we must examine all the facets of the signaling system.

My dissertation focused on the alarm call signaling system in birds. Alarm calls are acoustic signals given in response to danger or predators. My …

Day Hikers And Bear Safety: An Elaboration Perspective On Communication In Yellowstone National Park, Zachary David Miller

Graduate Student Theses, Dissertations, & Professional Papers

As the National Park Service (NPS) celebrates its 100th year, Yellowstone National Park – the world’s first national park - is dealing with a variety of difficult and complex challenges. Human-wildlife conflict has become a flashpoint for these challenges, as increased visitation results in fewer managers dealing with more people in the park. A recent spate of deaths of day hikers in the park due to grizzly bears set further focus on this point. Yellowstone officials realized that effective communication strategies are more important than ever before.

This research was part of a broader project designed to examine the effectiveness …

Contributions Of Gene Copy Number Variation To Genome Evolution And Local Adaptation Of The Cyanobacterium Acaryochloris, Amy L. Gallagher

Graduate Student Theses, Dissertations, & Professional Papers

Acaryochloris is a recently discovered genus of cyanobacteria, unique in its use of an uncommon chlorophyll as its major photosynthetic pigment, and in its peculiar genome dynamics. Members of this genus exhibit increased genic copy number variation (CNV), which is thought to be primarily derived from gene duplications and horizontal gene transfer (HGT). Acaryochloris provides an ideal system to explore mechanisms behind maintenance of gene duplicates and the influence of CNV in local adaptation. Here, I propose a mechanism for retention of gene duplicates of the bacterial recombinase, RecA, in Acaryochloris genomes and provide preliminary evidence that these paralogs are …

Drivers And Feedbacks Of The Fire-Grazing Interaction In The Northern Great Plains, Jacob E. Powell

Graduate Student Theses, Dissertations, & Professional Papers

The fire-grazing interaction is well studied in mesic grasslands worldwide, but research is lacking in semiarid systems. In addition, the fire-grazing interaction reduces the invasion of exotic forage species in mesic grasslands by increasing the scale of grazing selection and may be a tool to control invasive plants in other grasslands. We examined the principal drivers and feedbacks of the fire-grazing interaction on the strength of cattle grazing selection, forage quantity and quality, and vegetation structure and composition in two pastures in northeast Montana at The Nature Conservancy’s Matador Ranch. We also determined the influence of time since fire, within …

Concussion Policy Development At The Ymca Of Missoula, Keith Forkin

Graduate Student Theses, Dissertations, & Professional Papers

This professional paper addresses the implementation of concussion policy for the YMCA of Missoula. Specifically, evaluating concussion policy throughout the United States and determining key aspects of implementation. Evaluating the role of all people who that are influenced by concussion policy is imperative to developing a sound policy. Athletes, parents, coaches and health care providers each play essential roles when considering the effectiveness of policy implementation. While exploring varying concussion policies and research, this professional paper recognizes each of these essential aspects and incorporates them into the final Concussion Policy by the YMCA of Missoula.

Explaining And Monitoring Population Performance In Grizzly And American Black Bears, Jeffrey Brian Stetz

Graduate Student Theses, Dissertations, & Professional Papers

Understanding how environmental factors influence wildlife populations is at the heart of ecology and management. Populations and their habitats are, however, inherently dynamic, which requires monitoring responses to changes in the environment. Beyond quantifying population dynamics, understanding why populations respond as they do may allow improved predictions within and across populations, ideally leading to better management. Grizzly bears (Ursus arctos) and American black bears (U. americanus) have been researched in North America for decades, providing excellent opportunities to explore ecological questions involving inter- and intraspecific competition and responses to spatial and temporal variation in resources. The wealth of data collected …

Do Negative Expectations Affect Self-Reported Cognitive Functioning And Treatment Satisfaction After Chemotherapy Treatment For Cancer?, Brook Elizabeth Clark

Graduate Student Theses, Dissertations, & Professional Papers

This study investigated the effect of negative expectations on self-reports of cognitive functioning, treatment satisfaction, and endorsement of a common, negative chemotherapy-related stereotype in 56 adults who had completed systemic chemotherapy for cancer treatment. Participants were assigned to either a negative expectation group or a control group. The negative expectation group had the relationship between chemotherapy and cognitive deficits overtly brought to their attention, while the control group did not. Both groups completed self-report measures of cognitive functioning and treatment satisfaction, and then rated their degree of identification with a chemotherapy-related stereotype. It was hypothesized that the experimental group would …

Does Timing Of Herbicide Use Influence Rates Of Germination Or Seedling Biomass Of Native Plants Used For Restoration?, Christine Mcmanamen

Graduate Student Theses, Dissertations, & Professional Papers

Invasive plants can negatively impact native grasslands by changing their species composition, productivity, and function. Managers commonly use herbicides as a control method; however, this practice can lead to secondary invasion by other non-native invasive plants, unless measures are taken to promote natives. Because of this, managers often seed native plants after spraying herbicides. There is evidence, however, that chemical control of invasive plants may reduce the effectiveness of subsequent seed-addition treatments, but there is currently little quantitative information on optimal timing between spraying and seeding or on variation in herbicide sensitivity among native plants commonly used in seed mixes. …

A Miniaturized Spectrophotometric In Situ Ph Sensor For Seawater, Reuben C. Darlington

Graduate Student Theses, Dissertations, & Professional Papers

Since the Industrial Revolution, the world's oceans have absorbed increasing amounts of CO2 and the resultant changes to the marine carbonate chemical system have reduced the pH by > 0.1 units (~ 30%) in surface waters. This acidification of the oceans has many far reaching impacts on marine life and there is great need of quality instrumentation to assess and follow the changing carbonate system. This MIS project aims to develop a low cost pH sensor with high precision and accuracy for open sea measurements with special emphasis on reduced size and cost. Design effort is based on the commercially available …

Starting World Languages In Elementary Schools, Seth A. Barnes-Smith

Graduate Student Theses, Dissertations, & Professional Papers

This study addresses the position in which elementary school teachers find themselves when they recognize the benefits of bilingualism but are limited in being able to provide second language (L2) instruction. It seeks to answer the following questions: How many elementary school teachers in Montana have added a L2 component to their instruction? How likely are those teachers to turn to the Internet for materials and resources in order to add a L2 component to their instruction? What do elementary school teachers expect from those online materials? What L2 materials are available online and how can they be used? What …

A Biogeographic Perspective On The Impacts And Importance Of Rodent Granivory On Native Vs. Invasive Plants, Jacob Elias Lucero

Graduate Student Theses, Dissertations, & Professional Papers

One of the most well-known explanations for the success of invasive plants in novel environments is enemy release, which predicts that 1) invasive plants are limited by natural enemies in the native range but not the non-native range, and 2) native competitors in recipient communities remain limited by their natural enemies. Despite considerable empirical attention, very few studies have tested these basic predictions, especially with respect to generalist herbivores. We tested whether invasive cheatgrass (Bromus tectorum) has experienced enemy release from granivorous rodents – an important guild of generalists – using exclosures and experimental seed additions in western Asia (where …

Utilization Of Landsat Imagery To Assess The Impacts Of Oil And Gas Extraction On The Tazovsky Peninsula, Siberia, Nicholas B. Kline

Graduate Student Theses, Dissertations, & Professional Papers

Climatic warming of the Arctic is leading to landscape change through cascading biophysical feedbacks; development, such as oil and gas exploration and extraction, can accelerate or worsen these impacts. Due to restricted access to oil and natural gas fields, in situ environmental impact studies are only allowed in some regions. Satellite imagery analysis provides a mean for assessing impacts in areas with limited access. The Yamburg oil and gas field in western Siberia serves as a case study to assess the effects of infrastructure on an Arctic landscape.

This project quantifies the land-cover disturbance that occurred during the development and …

Limited Evidence For Co2-Related Growth Enhancement In Northern Rocky Mountain Pinus Contorta Populations: Trends In Growth And Intrinsic Water-Use Efficiency Across Climate Gradients, Charlotte C. Reed

Graduate Student Theses, Dissertations, & Professional Papers

Forests sequester large amounts of carbon annually; however, the degree to which enhanced forest productivity is due to more conducive climate or CO₂ fertilization remains uncertain. Increasing atmospheric CO₂ may enhance photosynthesis and/or decrease stomatal conductance thereby enhancing intrinsic water use efficiency (iWUE). While increasing iWUE has been observed in most trees globally, this increase does not necessarily translate into greater growth. This study aims to evaluate whether responses of radial growth and iWUE to increasing CO₂ vary across climatic gradients. To investigate interactions between climate and CO₂ and their impacts on tree physiology and growth, …

40 Trees: The Quest To Save Whitebark Pine On The Flathead Indian Reservation, Andrew S. Graham

Graduate Student Theses, Dissertations, & Professional Papers

When it comes to managing natural resources in the face of global climate change, sometimes localized action is best. Rick Everett spent a lot of time in western forests - first as a ski patroller and logger and then as an ecologist - before landing as a professor at a tribal community college on the Flathead Indian Reservation. Now he faces a challenging new question: How do you save a tree species that is ecologically valuable to the forest and culturally valuable to Native American tribes, but is being pushed toward extinction by forces varied, deadly and driven by climate …

Performance Measures Of Road Crossing Structures From Relative Movement Rates Of Large Mammals, Adam Andis

Graduate Student Theses, Dissertations, & Professional Papers

In recent decades, there has been an increase of engineering projects that seek to mitigate the barrier effect roads impose on wildlife by installing wildlife crossing structures that promote permeability of the road corridor. The 41 fish and wildlife crossing structures installed along a 90km stretch of US Highway 93 on the Flathead Indian Reservation in western Montana, represent one of the most extensive of such projects in North America. As mitigation efforts are increasingly considered and implemented in road construction projects, the need to assess these structures’ effectiveness grows. This study is the first to compare observations of animal …

Baseline Study Of Recovering Headwater Streams In The Sapphire Mountains, Western Montana, Morgan Vinyard

Graduate Student Theses, Dissertations, & Professional Papers

Many riparian areas in the western United States have been degraded by grazing and logging. In the year 2000, the Montana Department of Environmental Quality (DEQ) re-initiated an effort to identify and characterize reference streams, or least impacted streams in each region of the state. In Montana’s Bitterroot Valley, most streams have been impacted by grazing, irrigation, and timber production. The Montana DEQ has not been able to identify reference streams in the Sapphire Mountains on the east side of this valley. MPG Ranch, located on the west-facing slopes of the Sapphire Mountains and purchased in 2009 by a conservation-minded …

Beyond Blood: Examining The Communicative Challenges Of Adoptive Families, Mackensie C. Minniear

Graduate Student Theses, Dissertations, & Professional Papers

This study examined how adoptive families discursively create family identity through their communication. Building on theories of discourse dependence and family communication patterns, this research examined how families whose identity does not meet a bio-genetic view of family must re-define family using communication. Often times, families that are created outside biological means must renegotiate family identity both within the family, and outside the family, from those who feel comfortable commenting and questioning their family composition. Communication becomes a tool that adoptees must use to understand their family identity, as well as their own adoptive identity. Furthermore, this study looked to …

Assessing Household Drinking Water Needs: Reaching Many One Water Filter At A Time In Los Robles, Nicaragua, Erinkate E. Springer

Graduate Student Theses, Dissertations, & Professional Papers

Water quality and water scarcity have dominated international health and environmental management initiatives for decades because of the devastating impacts poor water quality has on child mortality and general public well-being, particularly in developing countries. Non-profit organizations, private utilities, and government agencies have invested significant financial resources and time to increase access to improved water sources in low-income countries. However, the sustainability of water improvement project benefits have been disappointing due to a lack of community and household capacity to operate and maintain introduced water systems. This paper evaluates a community/household based water improvement project introduced by a small non-governmental …

Prescribing The American Dream: Psychoanalysts, Mass Media, And The Construction Of Social And Political Norms In The 1950'S, Daniel P. Kamienski

Graduate Student Theses, Dissertations, & Professional Papers

This paper surveys how and why psychoanalysis during the 1950s—its “Golden Age” in the United States—emerged as a highly respected professional discipline with great public currency. The prevalence and popularity of psychoanalysts in public culture is substantiated by an extensive survey of primary print sources featuring psychoanalysts opining on many of the major social and political issues of the decade. Combining these opinions with those expressed in professional journals and publications, this paper reveals how psychoanalysts used their growing public currency to shape debates about which social identities and behaviors, cultural values, and political ideals were appropriate and legitimate for …

The Dynamics Of Vector-Borne Relapsing Diseases, Cody Palmer

Graduate Student Theses, Dissertations, & Professional Papers

We begin this dissertation with a review of the relevant history and theory behind disease modeling, investigating important motivating examples. The concept of the fundamental reproductive ratio of a disease, $R_0$, is introduced through these examples. The compartmental theory of disease spread and its results are introduced, particularly the next-generation method of computing $R_0$. We review center manifold theory, as it is critical to the reduction of the dimension of our problems. We review diseases that have a relapsing character and focus in on relapsing diseases that are spread by vectors in a host population. The primary example of such …

A Comparison Of The Utility Of Craniometric And Dental Morphological Data For Assessing Biodistance And Sex-Differential Migration In The Pacific Islands, Brittney A. Eubank

Graduate Student Theses, Dissertations, & Professional Papers

Genetic analysis of maternally-inherited mitochondrial DNA and the paternally-inherited Y-chromosome yield contrasting pictures of movement of peoples into the Pacific Islands. A possible explanation for this discrepancy is a matrilocal residency pattern practiced by early Pacific settlers, in which Melanesian men were brought into settler communities to intermarry with local women, yielding a higher intrapopulation variance and lower interpopulation variance exhibited in males compared to females. This research investigates the possibility of sex-differential migration in the Oceanic populations of Easter Island, Fiji, Guam, Mokapu, and New Britain through analysis of biodistance based on dental morphological trait frequencies and craniometric measures …

Between Rivers: Reflections On Home, Obligation, And Otherness From A Confluence Of Conservation And Connectivity, Chandra M. Brown

Graduate Student Theses, Dissertations, & Professional Papers

Between Rivers is an exploration of the role of the outsider in international watershed conservation. Through extended personal narrative and analysis of current events, ethnographic texts, and sociopolitical history, this thesis considers questions related to responsibility in conservation. The narrative focuses on Ecuador’s Jondachi Fest, a case study in international collaboration and celebration of an ecologically key river system. Grassroots celebrations and river festivals are sprouting up on endangered rivers all across South America. In this thesis, the author examines her own experience as an outsider working to facilitate one such festival – the challenges, shortcomings, relationships, and victories – …