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Articles 901 - 930 of 3451
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Public-Private Water Conservation: An Assessment Of Attitudes In The Deer Lodge Valley, Montana, Elizabeth K. Rial
Public-Private Water Conservation: An Assessment Of Attitudes In The Deer Lodge Valley, Montana, Elizabeth K. Rial
Graduate Student Theses, Dissertations, & Professional Papers
No abstract provided.
Ecological Restoration In Wilderness: What The Fish To Do?, Kelsey R. Patterson
Ecological Restoration In Wilderness: What The Fish To Do?, Kelsey R. Patterson
Graduate Student Theses, Dissertations, & Professional Papers
No abstract provided.
Estimation Of Historic Salmon Populations And Its Application To Contemporary Salmon Conservation, Nick Joseph Gayeski
Estimation Of Historic Salmon Populations And Its Application To Contemporary Salmon Conservation, Nick Joseph Gayeski
Graduate Student Theses, Dissertations, & Professional Papers
Populations of wild Pacific salmon and steelhead (Oncorhynchus sp.) in the eastern Pacific Rim have experienced significant declines in abundance and associated genetic and life history diversity over the course of the twentieth century (Nehlson et al 1991, Slaney et al 1996, Myers et al 1998, Lichatowich 1999). In the Pacific Northwest of the United States, declines in the abundance of most populations accelerated in the last two decades of the century and have continued into the first two decades of the twenty-first (Busby et al 1996, Myers et al. 1998, Good et al.2005, Hard et al. 2007, Ford et …
Risk Assessment In Montana: Risk Factors Predictive Of Juvenile Offender Recidivism, Taylor Tillman
Risk Assessment In Montana: Risk Factors Predictive Of Juvenile Offender Recidivism, Taylor Tillman
Graduate Student Theses, Dissertations, & Professional Papers
No abstract provided.
Into The Wild: A Case Study Of The Intersection Of Archaeology And Federal Wilderness Policy, Erika S. Blecha
Into The Wild: A Case Study Of The Intersection Of Archaeology And Federal Wilderness Policy, Erika S. Blecha
Graduate Student Theses, Dissertations, & Professional Papers
Cultural resource specialists working with and for Federal land management agencies have voiced their concern about the perception of cultural sites within federally recognized wilderness areas. However, as a whole, professionals working within the discipline of archaeology have remained relatively absent in the debates on wilderness with regards to human occupation in these designated areas. This thesis introduces the concept of wilderness, its history, perceptions, management, laws, and issues relevant to archaeology. It also draws attention to the paucity of archaeological research and the relaxed nature of cultural resource compliance mandates [National Historic Preservation Act (NHPA) Sections 106 and 110] …
A Critical Examination Of Private Conservation Areas On Campesino Community Lands In Peru, Megan Barnhart
A Critical Examination Of Private Conservation Areas On Campesino Community Lands In Peru, Megan Barnhart
Graduate Student Theses, Dissertations, & Professional Papers
Community-owned private reserves are emerging around the world as an alternative to government-run resource management and as a way to more directly involve citizens as stewards of their local natural resources. Despite their recent proliferation globally, voluntary efforts by communities to include their land in protected area systems, and the motivations and expectations of their legal recognition remain largely unknown. This thesis examines community-owned private conservation areas in Northern Peru locally known as Áreas de Conservación Privadas (ACPs) which are voluntary and legally recognized by the Peruvian State. The study investigates the rationales and outcomes of the application of ACPs …
Non-Coding Rnas Of The Q Fever Agent, Coxiella Burnetii, Indu Ramesh Warrier
Non-Coding Rnas Of The Q Fever Agent, Coxiella Burnetii, Indu Ramesh Warrier
Graduate Student Theses, Dissertations, & Professional Papers
Coxiella burnetii is an obligate intracellular bacterial pathogen that undergoes a biphasic developmental cycle, alternating between a small cell variant (SCV) and a large cell variant (LCV). Despite the remarkable niche and life cycle of C. burnetii, little is known about its modes of regulation and the roles that non-coding RNAs play in its growth and development. One such element is the intervening sequence (IVS); a 444-nt RNA element that is inserted within helix 45 of CoxiellaÆs precursor 23S rRNA. C. burnetii may have acquired IVS through horizontal transfer, and it has been subsequently maintained by all strains of C. …
Molecular Modeling Assisted Design And Synthesis Of Unsymmetrical Anthracene Isoxazole Small Molecule Anti-Tumor Agents, Nathan S. Duncan
Molecular Modeling Assisted Design And Synthesis Of Unsymmetrical Anthracene Isoxazole Small Molecule Anti-Tumor Agents, Nathan S. Duncan
Graduate Student Theses, Dissertations, & Professional Papers
There are several isoxazoles in general medical practice and their metabolic fate and disposition is well known, and thus, this heterocyclic ring is often considered among the privileged scaffolds or templates for drug design and discovery. Many examples can be found of 3-aryl-isoxazoles which in theory have a chiral axis, yet actual experimental examples of direct determinations of isoxazole rotational barriers are few and far between. The dihedral angle of the 3-aryl to isoxazole bond in antibacterials of the oxacillin series increased with substitution in the 2- and 6- positions of the phenyl. Although his calculated barrier was low, this …
Run To The Hills - Partial Migration In Large Herbivores, Wibke Peters
Run To The Hills - Partial Migration In Large Herbivores, Wibke Peters
Graduate Student Theses, Dissertations, & Professional Papers
Partially migratory populations in which some individuals move to allopatric ranges during one season while others remain on their shared range, offer a unique opportunity to understand which factors shape the realized niche of individuals with plastic movement behaviors. For ungulates, forage and its spatiotemporal variability, risk (predation, humans) and density have been suggested to be the main determinants for the probability, distance and timing of migration. Roe deer (Capreolus caproelus), a small browsing ungulate with a high ecological plasticity and a wide distribution, present an ideal model species to test hypotheses on migration plasticity.
The Anzick Site: Cultural Balance And The Treatment Of Ancient Human Remains (Toward A Collaborative Standard), Samuel S. White V
The Anzick Site: Cultural Balance And The Treatment Of Ancient Human Remains (Toward A Collaborative Standard), Samuel S. White V
Graduate Student Theses, Dissertations, & Professional Papers
The history of the post-discovery Anzick Clovis Site has been questioned as to its proper handling for decades regarding the dynamics of law, tribal position, public position, scientific and academic position and the interactions of the Anzick family as the owners of the real property. In this thesis, I present my findings that the Anzick remains and artifact assemblage were indeed handled appropriately through the years, considering the longitudinal changes in law and continual contribution from other legal cases to the concepts of proper handling of ancient remains. Reflecting on theoretical concepts such as individual human agency, socio-cultural construct and …
It's A Small World: Biogeography And Invasion In The Mouse Intestine, Ellen Lark
It's A Small World: Biogeography And Invasion In The Mouse Intestine, Ellen Lark
Graduate Student Theses, Dissertations, & Professional Papers
Host associated systems are of particular interest to many microbiologists because invasion of these systems can lead to disease. One important host-associated systems is the intestinal microbiome, but in many studies, including those on pathogenesis, this system is represented by samples from one location (generally the feces or cecum). This body of work was initiated in part because I wondered why a large and diverse ecosystem was being was being represented by samples from only one habitat.
The biogeography of living organisms has an impact on landscape ecology studies, including those in the field of invasion ecology. Despite several studies …
Human Consequences Of Climate Change, Climate Refugees: An Exploratory Essay, Frederick A. Snyder-Manetti
Human Consequences Of Climate Change, Climate Refugees: An Exploratory Essay, Frederick A. Snyder-Manetti
Graduate Student Theses, Dissertations, & Professional Papers
While planning my course schedule for the 2009 Spring Semester, I found myself desperately short of elective credits toward my Bachelor of Arts degree in Geography in order to graduate by the end of the 2010 Autumn Semester. From the limited course choices offered for the spring semester, only two worked with the other required courses I needed as well: Cultural & Global Competence and Global Hot Spots. Little did I know at the time, but the latter would prove to be the most stimulating course of my entire undergraduate geography program. Not only did this course forge within me …
It Takes A Village: Placing Middle Rocky Mountain High Altitude Residential Sites Of The Late Prehistoric Firehole Phase Into A Broader Regional Context, Bryon Alan Schroeder
It Takes A Village: Placing Middle Rocky Mountain High Altitude Residential Sites Of The Late Prehistoric Firehole Phase Into A Broader Regional Context, Bryon Alan Schroeder
Graduate Student Theses, Dissertations, & Professional Papers
This dissertation presents three separate articles in different stages of peer-review all focused on late Late Prehistoric (AD 1300 to contact) residential occupations, in the Wind River Range and Shirley Basin of Wyoming. These articles cover survey results in in the Wind River Range of Wyoming, Shoshone ethnic interpretations associated with Late Prehistoric artifact assemblages, and a lithic analysis from the excavated interior of domestic structure at an alpine and basin location of the Firehole Phase. These articles broaden the research agenda of high-altitude sites to downplay the role of ethnicity and include adjacent sites of the Wyoming Basin. In …
An Empirical Investigation Of The Buddhist Concept Of "Not-Self", Christian Herwitz
An Empirical Investigation Of The Buddhist Concept Of "Not-Self", Christian Herwitz
Graduate Student Theses, Dissertations, & Professional Papers
All individuals have notions about how they would likely approach themselves under times of stress, as well as the ways which would be most helpful to them. The present study investigated four broad ways of approaching the self under stressful circumstances: self-esteem, self-control, self-compassion, and not-self. Not-self, a concept based in Buddhist philosophy, is novel to a Western population, and was the primary focus. In order to comprehensively examine the concept, data were collected from 168 undergraduates on responses to stressful circumstances: by bolstering self-esteem, engaging in self-control behaviors, engendering a sense of self-compassion, or accepting/letting go thoughts, feelings, wants, …
Dynamic Motions Of The Alpha Subunit Of Heterotrimeric G Proteins In The Nucleotide- And Ric-8a-Bound States, Labe Adam Black
Dynamic Motions Of The Alpha Subunit Of Heterotrimeric G Proteins In The Nucleotide- And Ric-8a-Bound States, Labe Adam Black
Graduate Student Theses, Dissertations, & Professional Papers
The conformational changes and segmental dynamics involved in the G alpha-subunit of heterotrimeric G proteins have been investigated for 3 separate binding states by using binning-time-dependent single-molecule F÷rster resonance energy transfer (smFRET) of freely diffusing proteins and time-resolved fluorescence anisotropy. The bound states include Ric-8A (Resistance to Inhibitors of Cholinesterase-8A (Miller, Emerson et al. 2000; Miller and Rand 2000; Tall, Krumins et al. 2003)), a guanine nucleotide exchange factor (GEF), and nucleotides GDP and GTP. To analyze the smFRET data, energy transfer efficiency histograms were constructed at binning times varied from 1000 to 2,500 ╡s. Then the conformational equilibria and …
Institutional Effectiveness In An Open System: A Case Study Of Graduation Rates In The Montana University System, Anneliese A. Ripley
Institutional Effectiveness In An Open System: A Case Study Of Graduation Rates In The Montana University System, Anneliese A. Ripley
Graduate Student Theses, Dissertations, & Professional Papers
This is a mixed-methods, non-experimental, cross-case study designed to examine the environmental conditions that influence institutional effectiveness within one state-governed university system. The purpose of the study was to examine nationally defined graduation rates as a performance indicator of institutional effectiveness. Eleven delimited campuses in the Montana University System constituted the sample population. The quantitative analysis compared federally mandated graduation rates with graduation rates resulting from a modified graduation rate methodology. The qualitative analysis evaluated environmental conditions at each of the institutions. The cross-case analysis synthesized the quantitative and qualitative data using an open-systems framework to identify emergent patterns. Three …
An Assessment Of Biochar Amended Soilless Media For Nursery Propagation Of Northern Rocky Mountain Native Plants, Clarice P. Matt
An Assessment Of Biochar Amended Soilless Media For Nursery Propagation Of Northern Rocky Mountain Native Plants, Clarice P. Matt
Graduate Student Theses, Dissertations, & Professional Papers
A study was conducted to better inform nursery practitioners of the potential benefits of biochar application in common nursery media for native plant propagation. Biochar – a carbon-rich, recalcitrant charred organic co-product of the bioenergy pyrolysis process – has emerged as a promising potential replacement for various components of soilless media, namely peat, perlite, and vermiculite, in nursery seedling propagation. A strong conceptual basis exists for biochar as a nursery media amendment, but empirical data on biochar-based plant propagation is limited. This greenhouse study examined the effects of biochar displacement of standard soilless nursery media at rates of 0%, 15%, …
The Habitat Of European Brown Bears In Northern Spain: Mapping Habitat Fragmentation And Potential Connectivity, Alma D. Pacheco
The Habitat Of European Brown Bears In Northern Spain: Mapping Habitat Fragmentation And Potential Connectivity, Alma D. Pacheco
Graduate Student Theses, Dissertations, & Professional Papers
The European brown bear in northern Spain is considered to be an endangered species whose habitat has been fragmented into two subpopulations due to habitat loss and lack of connectivity. The importance of improving connectivity and preventing more habitat destruction is vital to recover the species in this region. This research looks at spatial and temporal variations of brown bear habitat by mapping the conditions of habitat fragmentation and potential connectivity at a regional extent. This research examines net changes of brown bear habitat fragmentation between 1990-2000, 2000-2006, and overall 1990-2006; and the degree of brown bear habitat connectivity between …
Cows And Plows: Science-Based Conservation For Grassland Songbirds In Agricultural Landscapes, Marisa K. Lipsey
Cows And Plows: Science-Based Conservation For Grassland Songbirds In Agricultural Landscapes, Marisa K. Lipsey
Graduate Student Theses, Dissertations, & Professional Papers
Temperate grasslands are among earth’s most imperiled ecosystems. In North America, steep declines of endemic songbird populations indicate that grassland loss and degradation may be approaching critical levels. Grasslands are agricultural landscapes largely (~85%) under private ownership with little formal protection status. Remaining bird populations depend on grazing lands that have not been converted to cropland. We combine regional data from a hotspot for grassland bird diversity (northeast Montana, USA; 26,500-km2) with continental data spanning the northern Great Plains (1,000,000-km2) to evaluate how land use and management influence bird distribution and abundance. Regionally, habitat used by seven grassland specialists spanned …
Comparative Analysis Of Email Request Strategies Used By Native And Non-Native Speakers Of English In Academic Settings, Karyna Tytar
Comparative Analysis Of Email Request Strategies Used By Native And Non-Native Speakers Of English In Academic Settings, Karyna Tytar
Graduate Student Theses, Dissertations, & Professional Papers
This thesis presents an analysis of pragmatic features of email request composite parts: email openings and closings, request Head Acts, and supportive moves elicited from native speakers (NSs) and non-native speakers (Non-NSs) of English, in two different email request situations. The two email request situations in this study have different levels of imposition, where the email request in situation 1 is considered more of an imposition than the email request in situation 2. It is thus expected that email requests in situation 1 would exhibit more politeness features than email requests in situation 2.
Analysis of the email request composite …
Wilderness And Epistemic Wildness, John T. Stanfield
Wilderness And Epistemic Wildness, John T. Stanfield
Graduate Student Theses, Dissertations, & Professional Papers
The traditional concept of wilderness was a product of the time out of which it came. Times have changed. The social context of conservation, how humans affect nature, and scientific understanding of how ecosystems function have all shifted in ways that make the wilderness idea problematic. The values that people found in wilderness are still relevant, however. It is the way that they are tied together in the concept of wilderness that has become a problem.
I propose a revised concept of wilderness that meets the concerns of critics of wilderness, and accounts for the tension between the wild and …
A Model For Determining Drivers Of Phenology In Western United States Rangelands, Joseph R. St. Peter
A Model For Determining Drivers Of Phenology In Western United States Rangelands, Joseph R. St. Peter
Graduate Student Theses, Dissertations, & Professional Papers
Plant phenology has long been used as an indicator of climate. Recent changes in plant phenology are evidence of the influence of climate change. Modeling plant phenology has become an effective tool to understand the impacts of climate change. Using machine learning techniques I developed a modeling process for accurately predicting phenology across a diverse landscape. This model uses individual site data to set site specific climate thresholds for plant phenology. This model also identifies the limiting factors to vegetation phenology for rangelands in the western United States. NDVI remotely sensed data was used to quantify land surface phenology and …
Sacred Zones: Examing Wilderness In Yellowstone, Maine And Russia, Lily S. Vonderheide
Sacred Zones: Examing Wilderness In Yellowstone, Maine And Russia, Lily S. Vonderheide
Graduate Student Theses, Dissertations, & Professional Papers
This thesis seeks to examine issues of resource conservation and recreational access in three regions of immense historical and ecological significance: Yellowstone National Park, the North Woods of Maine, and the protected nature reserve system of Siberia. By applying a combination of direct professional experience, current research and ongoing environmental policy action, the thesis attempts to provide an accurate picture of current and future challenges facing the three regions. Part I, “Yellowstone Paradox,” traces the roots of Yellowstone’s restrictions on recreational boating access in a post-WWII discourse of consumer recreation, the development of a sustainability ethic and its deployment as …
Impact Of A Flame Resistant Synthetic Material Base Layer On Heat Stress Factors, Matthew C. Dorton
Impact Of A Flame Resistant Synthetic Material Base Layer On Heat Stress Factors, Matthew C. Dorton
Graduate Student Theses, Dissertations, & Professional Papers
Protective clothing worn by wildland firefighters (WLFF) may increase physiological strain and heat stress factors due to increased insulation and decreased ventilation. PURPOSE: To examine the effects of a flame resistant synthetic material base layer on heat stress factors. METHODS: Ten recreationally active males (25 ± 6.1 yrs, 80.9 ± 8.4 kg, 11.1 ± 5.3% fat, 4.4 ± 0.6 L·min-1 VO2 max) completed two trials of intermittent (50 min walking, 10 min sitting) treadmill walking (4km/hr, 4% grade) over 3 hours in a hot, dry environment (35⁰C, 30% rh). Participants wore standard WLFF Nomex green pants, Nomex yellow shirt with …
The Sensitivity Of Soil Respiration To Soil Temperature, Moisture, And Carbon Supply At The Global Scale, Andrew Hursh
The Sensitivity Of Soil Respiration To Soil Temperature, Moisture, And Carbon Supply At The Global Scale, Andrew Hursh
Graduate Student Theses, Dissertations, & Professional Papers
Soil respiration is one of the most important terms in the global carbon budget, yet we know very little about how important environmental factors control this process at the global scale. Soils contain more carbon than terrestrial biomass and the atmosphere combined and contribute ten times more carbon dioxide to the atmosphere each year than the burning of fossil fuels. This study provides new insight on the factors driving soil respiration at the global scale by assimilating satellite observations of soil moisture, temperature, and net primary productivity with the Global Soil Respiration Database (SRDB).While temperature, moisture, carbon supply and other …
The Last Wolves Of Isle Royale, Kasey Rahn
The Last Wolves Of Isle Royale, Kasey Rahn
Graduate Student Theses, Dissertations, & Professional Papers
Isle Royale National Park, located in Michigan, is home to a wolf population that is in decline due to complications from inbreeding. Scientists and managers struggle to decide whether to intervene. Some scientists promote bringing new wolves to the island to restore the population because they say the decline is human-caused. Others promote “watchful waiting.” To date, the National Park Service has not interceded and is currently undergoing a management planning process. The issue raises questions about what it means to manage wildlife in an era of change. Should humans intervene to protect wildlife in the face of climate change …
Community Perturbation Associated With New Zealand Mudsnail (Potamapyrgus Antipodarum) Invasion: Discrepancies In Temporal And Spatial Assessment, Eric H. Richins
Community Perturbation Associated With New Zealand Mudsnail (Potamapyrgus Antipodarum) Invasion: Discrepancies In Temporal And Spatial Assessment, Eric H. Richins
Graduate Student Theses, Dissertations, & Professional Papers
Invasive species have the potential to alter the ecosystems within which they establish as well as adjacent but uninvaded ecosystems by altering the flow of nutrients or biota across system boundaries. New Zealand mudsnails (Potamopyrgus antipodarum; NZMS) are often very abundant where they invade, sequestering the majority of stream primary production. This sequestering of production may reduce aquatic insect production, subsequent insect emergence and subsidies to riparian ecosystems. Tetragnathid spiders, an insectivorous riparian specialist, are dependent on the emergence of aquatic insects and are typical indicators of aquatic insect subsidies to riparian zones. In addition, NZMS invasions can result …
The Drunken Path: Discerning Women's Voices And Participation In The Informal Economy Of Illegal Manufacturing Of Prohibition Alcohol In The Historical And Archaeological Record, Kelli M. Casias
Graduate Student Theses, Dissertations, & Professional Papers
This thesis puts the Prohibition years in Anaconda and Butte, Montana, into historical, and sociocultural context to discover an engendered narrative of liquor law violators between the years 1923 and 1926 and to investigate the scope of the local informal, illegal, illicit economic systems dictating the distribution of illegal liquor during that era. The transference of the means and modes of production, as envisioned by Karl Marx, and collective social resistance serve as the theoretical frameworks for analysis and examination of three case studies. The first, Poacher Gulch is a remote mining site in western Montana, was the subject of …
Linking The Effects Of Risk Factors On Annual Calf Survival To Elk Population Dynamics In The Bitterroot Valley, Montana, Daniel R. Eacker
Linking The Effects Of Risk Factors On Annual Calf Survival To Elk Population Dynamics In The Bitterroot Valley, Montana, Daniel R. Eacker
Graduate Student Theses, Dissertations, & Professional Papers
The recolonization of gray wolves (Canis lupus) in multiple carnivore systems has been correlated with declining recruitment of juvenile ungulates, but the importance of wolves relative to other established carnivores is uncertain. The realized effect of carnivores may depend on compensation from forage and winter weather severity, which may mediate juvenile vulnerability to predation. Also, in high predation systems, the importance of juvenile recruitment may be reduced for ungulate population dynamics. We first tested for the effects of risk factors on annual elk (Cervus elaphus) calf survival and estimated cause-specific mortality rates. Secondly, we investigated the …
Maximal Femoral Artery Blood Flow During Cycle Ergometry, Tucker W. Squires
Maximal Femoral Artery Blood Flow During Cycle Ergometry, Tucker W. Squires
Graduate Student Theses, Dissertations, & Professional Papers
MAXIMAL FEMORAL ARTERY BLOOD FLOW DURING CYCLE ERGOMETRY
Chairperson: Matthew Bundle Ph.D.
The delivery of oxygen to working muscle in order to support aerobic respiration has long been recognized as one of the critical elements conferring endurance performance. Oxygen is transported from the environment to the active cells by the cardiovascular system, which is classically understood to deliver progressively greater amounts of gas to support increased levels of aerobic metabolism. However, the vast majority of existing studies have used modes of exercise that activate relatively small volumes of muscle and consequently have relatively small demands for oxygen delivery. We measured …