Physical Sciences and Mathematics Commons^™

The Quest Of Vision: Visual Culture, Sacred Space, Ritual, And The Documentation Of Lived Experience Through Rock Imagery, Aaron Robert Atencio

Graduate Student Theses, Dissertations, & Professional Papers

This document will approach the multifaceted concepts that arise through the study of rock art and the cultivation of culture and belief through vision. Through this document the audience will encounter conceptual ideas regarding belief systems, ritual, experience, cognition, sacredness, and space/landscape — and how these are all essential dynamics that take place in the processes that cultivate the Shoshone visual culture. This document will employ an anthropological lens on the mentioned subject matters, while also approaching these concepts with an interdisciplinary curiosity of how they intermingle; creating a cohesive experience that focuses on these processes which empowered these people[s] …

Community-Centered Sustainable Conservation And Ecotourism Planning In The Bossou Forest Reserve, Guinea, West Africa, Destina Samani

Graduate Student Theses, Dissertations, & Professional Papers

Ecotourism management has evolved over the years towards responsible conservation of the natural environment, sustaining the well-being of local people, enriching personal experiences and increasing environmental awareness. The development of a forest reserve is characteristic of the management–visitor–host community interface and the attendant competing interests in the face of new challenges, ideas and theories. In particular, host community participation in the conservation of the forest space tends to breakdown under weak ecotourism management, partly evident by the imbalanced exploitation of ecosystem services resulting in wildlife and society’s inability to cope effectively with the changes (Walker et al., 2016).

The Bossou …

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

Graduate Student Theses, Dissertations, & Professional Papers

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

Spatiotemporal Dynamics Of Nitrogen And Carbon Biogeochemistry In A Wetland-Stream Sequence, Patrick E. Hurley

Graduate Student Theses, Dissertations, & Professional Papers

Studies of aquatic ecosystems often segregate streams from the influential ponds, lakes, and wetland zones that act as important transitions between terrestrial and fluvial systems. Across the aquatic landscape, these zones interact to form linked ecosystems that function as discrete nutrient processing domains, shifting biogeochemical signals due to spatial and temporal variability in hydrologic and biologic controls. Using a mass-balance approach, we profiled nutrient dynamics along a 23-km wetland-stream sequence over three seasons. Hydrologic, morphologic, and biologic conditions, as well as landscape attributes, were quantified to determine potential controls on biogeochemical cycling in a tributary of the Upper Clark Fork …

Soil Moisture Drives Canopy Water Content Dynamics In The Western U.S., Drew S. Lyons

Graduate Student Theses, Dissertations, & Professional Papers

Drought stress is a major contributing factor to adult tree mortality and limits regeneration across the globe. Drought effects are often studied on a site level, but recent advances in remote sensing allow for observations of plant water status across broader geographic scales. The vegetation optical depth (VOD) derived from satellite sensor microwave backscatter has been shown to be sensitive to canopy water content, and can therefore provide useful information on how plant water status changes over time. We develop an index which quantifies the normalized difference between diurnal VOD retrievals (nVOD) across the western U.S. to determine where plant …

Environmental Site Assessment And Hydrogeologic Impacts To Groundwater At St. Ignatius, Montana And Hanford, Washington, Ryan M. Carter

Graduate Student Theses, Dissertations, & Professional Papers

The following Environmental Studies Master’s Portfolio is a compilation of works completed individually and with peers in order to fulfill requirements for the Master of Science degree. These works demonstrate range, depth, and the interdisciplinary nature of the course of study. As an undergraduate student at Eastern Washington University, I studied Environmental Science with a concentration in hydrogeology. I was interested in learning about the natural world and wanted to develop a deeper connection to it. Inevitably, I was exposed to courses that examined the causes and effects of hazardous waste site remediation, and this topic became my passion. The …

An Assessment Of Fecal Water Contamination In The Absaroka-Beartooth Wilderness, Daniel Paul Pendergraph 5024527

Graduate Student Theses, Dissertations, & Professional Papers

Wilderness water sources are often defined as pristine or high quality due to the lack of point source pollution. Non-point source pollution from recreation to water resources can be extensive and is well-studied in protected areas globally. Bacterial contamination, specifically fecal bacteria, poses a significant threat to human health because of the risk for outbreaks of illness and disease. Water sources in designated Wilderness areas are particularly vulnerable to fecal water contamination due to high volume of backpackers and lack of backcountry waste facilities. To estimate the occurrence of fecal water contamination in Wilderness water resources, an exploratory analysis was …

Colloidal And Truly Dissolved Metal(Loid)S In Wastewater Lagoons And Their Removal With Floating Treatment Wetlands, Lauren Sullivan

Graduate Student Theses, Dissertations, & Professional Papers

Climate change is predicted to cause continuing declines in late-season streamflow, thus increasing the relative contribution of wastewater effluent to surface water flows. Wastewater effluent represents a critical point source of metal and metalloid contamination to aquatic ecosystems and wastewater lagoons are the most common wastewater treatment system in the rural United States. Although the fraction of total wastewater metals and metalloids in "dissolved" forms (defined here asnm) likely drives the potential for negative effects on receiving waters, this broad operational definition lumps truly dissolved solutes (nm) with small colloids and nanomaterials (1-450 nm; hereafter colloids). This size distinction may …