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Sediment Routing Through Channel Confluences: Particle Tracing In A Gravel-Bed River Headwaters, Kurt Imhoff

Graduate Student Theses, Dissertations, & Professional Papers

Sediment routing in gravel-bed rivers refers to the intermittent transport and storage of bedload particles, where short-duration steps are separated by periods of inactivity. Channel morphology governs sediment routing, but morphologic effects on routing in headwater systems are not well understood compared to lowland systems. RFID tracers are a valuable tool that can be employed to characterize routing processes in headwater channels through individual particle tracking. I present research on coarse sediment transport and dispersion through confluences using sediment tracers in the East Fork Bitterroot River basin, MT. I investigate the following questions: (1) How do sediment routing patterns through …

A Gis Assessment Of Ecoregion Representation In Chile's Existing And Proposed Integrated Network Of Protected Areas, Jessica Schutz

Graduate Student Theses, Dissertations, & Professional Papers

Chile's state designated protected areas are reported to show representation bias and to be unable to meet conservation goals. Private protected areas are considered an important tool to resolve these issues, which has led to support for increasing the role of private protected areas in Chile and creating an integrated public-private protected area network. But the validity of the capacity of private protected areas to fix Chile's state protected area network bias, and the advantage of creating an integrated protected area network, have not been assessed. This study uses the most recent data on Chile's state, private, and international protected …

Bilisshiissaannuua / To Go Without Water: The Importance Of Fasting Among The Apsaalooke, Aaron B. Brien

Graduate Student Theses, Dissertations, & Professional Papers

The Apsaalooke nation of Montana is one of many tribes in the Great Plains that

practice the ritual of fasting (Vision Quest). In this document I will explain Apsaalooke

fasting also called Bilisshíissaannuua To Go Without Water. This will be done by explain

some core elements of Apsaalooke belief to give the reader a string knowledge base,

so that one can contextualize fasting with in Apsaalooke culture.

This documents also highlights the Dryhead Preservation and recordation project

during the summer of 2013, funding and conducted by the Bureau of Land

Management, Custer National Forest and The Crow tribal Historic Preservation …

Taphonomy Of The Chengjiang Biota: Using A Combination Of Sedimentology, Geochemistry And Experimental Taphonomy To Determine Preservation, Lindsay Ann Mackenzie

Graduate Student Theses, Dissertations, & Professional Papers

The Chengjiang Biota, found in the Early Cambrian Maotianshan Shale (Yunnan, China), represents the Cambrian ôexplosion of life,ö providing a snapshot of the early evolution and development of complex life. This snapshot is possible because high fidelity processes transfer information from living organisms to preserved fossils. Taphonomy is everything that occurred during this information transfer from death to fossilization and discovery, including chemical and/or sedimentological processes. The Chengjiang fossilsÆ biology is well documented and taphonomical processes have been proposed. Tests of these models are limited because the depositional environment remains poorly understood. To fill this gap and better constrain the …

Jp's Thesis, Jp Kemmick

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

The Millennial Who Planted Trees, Trevien Stanger

Graduate Student Theses, Dissertations, & Professional Papers

In this work of creative non-fiction essays and stories, the author explores ecological restoration through a variety of contexts, settings, and conditions.

The Biogeochemistry Of Elemental Sulfur Contaminated Soils: Insights Into Effective Remediation, Michael Ryan Mctee

Graduate Student Theses, Dissertations, & Professional Papers

Soil contamination that results from elemental sulfur (S⁰) deposition is a new occurrence. Elemental sulfur is stockpiled as a byproduct from the oil and gas industry and is deposited by biodegradable trap and skeet targets at shooting ranges. Chemolithotrophs and mixotrophs can oxidize S⁰ to H₂SO₄. Consequently, in areas where excess S⁰ is deposited or stockpiled, soils can acidify to pH values observed with acid mine drainage.

I studied S⁰ contamination at a former sporting clay range. For seven years, the range used biodegradable trap and skeet targets that contained S …

"Spitting Positively Forbidden": The Anti-Spitting Campaign, 1896-1910, Patrick J. O'Connor

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Snip, Snap, Snout: This Tale Is Told Out, Crista A. Ames

Graduate Student Theses, Dissertations, & Professional Papers

Mythology has shaped human thought and experience since before recorded history. Passed from one generation to the next, myths elevate and aggrandize realities that are difficult, complex or horrifying. This is what makes us human, an inspiring capacity toward metaphor and the ability to make beauty, lyricism and splendor—order from the chaos. Within mythology, the cause and effect of both misery and joy may be explored in their wholeness. In this act of imaginative translation, we may come to understand how misery and joy are naturally coexisting.

In my thesis exhibition this tale is told out, I use the layering …

Economic And Policy Factors Driving The Adoption Of Institutional Woody Biomass Heating Systems In The United States, Jesse D. Young

Graduate Student Theses, Dissertations, & Professional Papers

New biomass combustion technologies and adequate biomass supplies have empowered the United States (U.S.) to look beyond satisfying heating needs with traditional fossil-based fuels, but biomass heating is often overlooked by many commercial and institutional entities. This study uses county level Zero Inflated Negative Binomial (ZINB) cross sectional regression analyses to identify economic factors that are favorable to the adoption of decentralized woody biomass heating systems by institutions in the U.S. In addition, biomass policy efficacy with respect to decentralized biomass heating systems is analyzed and regression results are used to develop an expansion map that highlights counties in the …

An Adventurous E-Reader For Non-Linear E-Books, Emily Palmieri

Graduate Student Theses, Dissertations, & Professional Papers

Non-linear books are published in print format as sequential text or digitally as collections of documents linked together via hyperlinks. These publication methods are problematic for readers and authors alike. Readers are often presented with unintuitive interfaces that do not indicate critical contextual information; authors struggle to order non-linear content into linear formats or to create and distribute their work in resource intensive digital mediums. While standard e-books might be a convenient format for non-linear books, current e-readers used to view them are severely limited; they mimic the format of physical books and fail to solve problems inherent in displaying …

Unearthing Connections In A Storied Landscape: The Flathead River Honoring And Place-Based Education In The Flathead Valley, Melissa Wardlow

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Characterization Of Pm2.5 From Residential Woodstove Use For Source Apportionment Application, Virginia M. Porden

Graduate Student Theses, Dissertations, & Professional Papers

Results are presented for the comparative analysis of the PM_2.5 (Particulate Matter <2.5 µm) emissions from an EPA certified and a Traditional style wood stove using western larch. A total of 92 Quartz QMA 47mm filters were collected using a BGI PM_2.5 SSC (Sharp Cut Cyclone) sampler from each stove type and analyzed on a gas chromatograph-mass spectrometer against blank and deuterated internal standards. The results were analyzed using a Welch’s t-test (α > 0.05) to statistically differentiate between stove designs for temperature, mass, levoglucosan, resin acids (abietic and dehydroabietic), and polycyclic aromatic hydrocarbons [PAH] (acenaphthene, anthracene, benz(a)anthracene, pyrene, and retene). There was no statistical difference in levoglucosan PM_2.5 mass fraction between the stove types, yielding a mean levoglucosan fraction of 9.25% and 95% confidence interval of 8.43% …

Assessing Changes In Avian Communities, Jessie D. Golding

Graduate Student Theses, Dissertations, & Professional Papers

Grazing is a potentially powerful tool to address wildlife declines associated with land use conversion in the western United States. Grazing systems can be manipulated to achieve desired vegetation outcomes, preserve native habitat and economically benefit multiple stakeholders. As a result, systems designed to benefit native ecosystems are being widely implemented. However, the benefits of these grazing systems on many wildlife communities remain relatively unexplored. Songbirds provide an ideal study system to test these benefits because they continue to use native habitat that is currently grazed. Given limited time and resources, conservation practitioners often monitor a single focal species or …

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

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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 …

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] …

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. …

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.

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 …

Effects Of Academic And Activity Class Participation On Cognition In Young Adults, Emily N. Simpson

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Engendering The Past: An Archaeological Examination Of The Precontact Lifeways Of Women At Yellowstone Lake, Yellowstone National Park, Cathy J. Beecher

Graduate Student Theses, Dissertations, & Professional Papers

This thesis examines three lines of evidence within the precontact archaeological record around Yellowstone Lake, focusing on elucidating female-specific lifeways. This work is undertaken as a means to explore concepts of gender within precontact archaeological contexts. This aim is accomplished using statistical analysis of lithic tool distribution patterns, ethnohistoric information on plants found through archaeobotanical assays and the microspatial examination of cultural fire features.

Variation in the use of obsidian and chert for unifacial tool manufacture indicates potential restrictions on the manufacture of gender specific tools as these stone resources become less available. In addition, a frame-of-reference is built by …

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 …

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 …

A Zooarchaeological Study Of Generational Decision-Making: Modeling Subsistence And Demographic Change In Late-Holocene Occupations Of Housepit 54 At The Bridge River Site (Eerl4), Mid-Fraser, B.C., Matthew Joseph Walsh

Graduate Student Theses, Dissertations, & Professional Papers

The Bridge River site is a winter pithouse village near the confluence of the Bridge and Fraser Rivers in the Mid-Fraser Canyon that was occupied periodically from as early as 1800BP to the mid-19th century. Prentiss et al. (2008) divide the range of occupations into four Periods: Bridge River (BR) 1, c. 1800-1600BP, BR2, c. 1600-1300BP, a short-lived BR3, c. 1300-1100BP (by the end of this period the village appears to have been largely abandoned), and BR4, a late reoccupation of the site, c. ~500 to 100BP (Prentiss et al. 2008, 2011, 2012). During BR2 and into BR3, between 1500-1100BP, …

Caitlin Stainken's Thesis, Caitlin Stainken

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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

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 …

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 …