Geography Commons^™

Thermal Regimes Of Beaver-Impacted Stream Reaches In The Tualatin River Basin, Oregon, United States, Miles Mayer, Heejun Chang

Geography Faculty Publications and Presentations

As beavers are increasingly used in stream restoration, interest in their potential to mitigate stream degradation has grown. However, the impacts of beaver dams on stream temperature remain inconsistent across studies, often due to differences in spatial scale and methodology. We investigated summer thermal regimes at multiple spatial scales in three beaver-impacted streams within the Tualatin River Basin, Oregon, using fiber-optic distributed temperature sensing. Substantial variability in thermal regimes was observed among the three stream reaches and around individual beaver dams within each reach. This variability was primarily influenced by geomorphic changes in stream depth associated with beaver dams and …

Collaborative Governance And Hydrosocial Territorialization: Reaching Consensus On Salmon Restoration Goals In The Columbia River Basin, Thien-Kim Bui, Rebecca Mclain

Geography Faculty Publications and Presentations

Across the Cascadia bioregion, salmon and steelhead are ecological and cultural keystone species that contribute to and illustrate riverine health. Due to complex social, economic, and ecological relations over the past 150 years, many Columbia River Basin salmon and steelhead populations are now listed as threatened or endangered in the United States. This research uses the 2017–2020 Columbia Basin Partnership Task Force as a case study to understand how this collaborative governance effort of sovereign entities and nonsovereign stakeholders navigated competing water claims to reach consensus on aspirational qualitative and quantitative goals for salmon and steelhead restoration. Using semistructured interviews …

Evaluating Spatiotemporal Vegetation Index Variation To Detect Salt Marsh Dieback On The Georgia Coast, Emmanuella Bosompemaa Obeng

College of Graduate Studies: Theses & Dissertations

Salt marshes, essential for coastal protection and carbon sequestration, are increasingly vulnerable to dieback events, threatening ecosystem resilience and vital services. Detecting these shifts early is essential for timely intervention. However, few studies have applied Early Warning Signals (EWS) to coastal marsh systems. Most EWS research has focused on lakes, forests, or climate tipping points, with limited application to salt marsh dieback in the southeastern U.S. Site-specific, long-term spatial analyses are also lacking, as prior work often examines short time frames or single disturbance events. This study investigates the spatiotemporal patterns of salt marsh dieback on the Georgia coast from …

Wildlife Distribution Mapping And Analysis In Gorongosa National Park, Mozambique, Using Site And Satellite Imagery Data, Pinho Joaquim Munhequeira Mr

Murray State Theses and Dissertations

One of Mozambique's most important conservation sites, Gorongosa National Park has seen critical ecological changes over the past several decades resulting from climate variability, habitat loss, and political instability. This research integrates Geographic Information Systems (GIS) and remote sensing to examine the relationship between vegetation dynamics and wildlife population, and distribution. The main goals of this study are to evaluate the spatial distribution of particular wildlife species: buffalo (Syncerus caffer), elephant (Loxodonta africana), hippopotamus (Hippopotamus amphibius), and zebra (Equus quagga), and determine the impact of vegetation density and land cover on their …

The Geography Of Care: Rural Versus Urban Caregiver Perspectives On Community Resources For Parkinson’S Disease Management, Rebecca Jones

Murray State Theses and Dissertations

This qualitative study investigated the experiences and perceptions of caregivers for individuals with Parkinson's disease (PD) in rural versus urban settings, with particular emphasis on their access to and utilization of community resources. Through semi-structured interviews with 30 caregivers, the research explored how geographical location impacts caregiving challenges, support systems, and resource accessibility. Using Andersen's Behavioral Model of Health Services Use as a theoretical framework, the study revealed both universal caregiving challenges and location-specific barriers. While all caregivers reported significant emotional burden and healthcare system navigation difficulties, rural caregivers faced distinct challenges related to resource accessibility and specialized care availability. …

Iucn Wcpa Technical Note No.21: Utilizing Protected And Conserved Areas For Human Health And Well-Being: A Technical And Methodological Framework, Simon King, Christopher J. Lemieux, Catherine E. Reining, Marco Garrido Cumbrera, Peter Rawcliff, Eliseth Ribeiro Leão, Denise Hewlett, Jo Hopkins, Robyn Molsher

Geography and Environmental Studies Faculty Publications

In recent years, social prescribing—particularly green prescribing and nature prescriptions—has rapidly gained popularity as a holistic approach to improving health and well-being by connecting individuals with nature-based activities and community support. Due to the unique qualities of protected and conserved areas, they provide irreplaceable benefits to humans. This has prompted many to quickly identify, define, and measure their positive impacts on human health and well-being. As exciting as this potential may be, it is imperative to consider that health is the terrain of another sector. Just as ecosystem management may be unfamiliar to health professionals, health is a field that …

Issue Paper No. 7: Strengthening Sustainable Tourism’S Role In Biodiversity Conservation And Community Resilience, Ante Mandić, Thiago Beraldo Souza, Anna Spenceley, Kelly Bricker, Paul F. J. Eagles, Megan Epler Wood, Ronda Green, Karim Haggar, Glen Hvenegaard, Christopher J. Lemieux, Yu-Fai Leung, Stephen F. Mccool, Joseph K. Muriithi, Carol Ritchie, Paul Rogers, Brooklyn Rushton, Jim Sano, Daniel Turner

Geography and Environmental Studies Faculty Publications

Tourism, defined widely to include all types and forms of permitted outdoor recreation and visitation to Protected and Conserved Areas (PCAs) including by local, national and international visitors, plays a complex and often contested role in PCAs. While a significant share of global tourism depends on the ecological richness of these areas, their conservation value does not automatically translate into sustainable financial returns. Nonetheless, when effectively managed, tourism in PCAs can generate conservation funding, support local livelihoods, and provide infrastructure investment, particularly in under-resourced landscapes (Leung et al., 2018). Beyond economics, public use of PCAs contributes to building social license …

A Big Data Approach To Modelling Urban Population Density Functions: From Monocentricity To Polycentricity, Cehong Luo, Yujie Hu, Fahui Wang

Faculty Publications

Urban studies have a long tradition of examining the regularity of urban structure by modelling urban population density functions and probing the theoretical or behavioural foundation behind it. Previous studies commonly used census data in areal units such as census tracts or census block groups, which varied a great deal in area size and shape and led to the zonal and scale effects, commonly referred to as the modifiable areal unit problem (MAUP). This study uses big data of individual vehicle trips in Tampa, Florida, to define the precise population and employment distribution locations, and then aggregates them with uniform …

Adaptation For Whom? Understanding The Impacts Of Dyke Policies On Small-Scale Farmers In Ca Mau Province Of Vietnam, Nguyen Minh Quang, Nguyen Van Minh, Nguyen Vo Chau Ngan, Martha B. Lerski

Publications and Research

Low-lying deltas worldwide are extremely vulnerable to sea-level rise. As the risks of climate-induced flooding become increasingly clear, the thirst for infrastructure-driven adaptation increases. This highlights a patent need to understand the impacts of engineering adaptation solutions, especially those targeting built structures such as dykes and sluices, on farmers from a bottom-up, farmer-centred perspective. The study addresses this call by examining cases where dyke policies, while successful in some dimensions, have undermined small-scale farmer livelihoods in Ca Mau ― Vietnam’s southernmost rural province. It identifies areas in need of attention and adds empirical data related to this group of farmers. …

Identifying Intangible And Biocultural Heritage Elements Toward Environmental Understanding: Engaging Stakeholders Through Art, Martha B. Lerski

Publications and Research

Grounded in a case study in Barbuda in the Caribbean, this research examines sustainability from the perspective of what arts and heritage can contribute to community engagement and local and broader understandings about the environment. This article documents a growing body of literature recognizing the role of arts and culture, including local knowledge and traditional ecological knowledge (TEK), in climate change endeavors. Art and TEK present expansive world views. Contextual information situates research done on the island of Barbuda pre- and post-Hurricane Irma. Visual arts workshops engaged community members in mixed methods research. Results documented cultural elements, particularly intangible and …

Potential 2050 Distributions Of World Terrestrial Ecosystems From Projections Of Changes In World Climate Regions And Global Land Cover, Roger Sayre, Charlie Frye, Sean Breyer, Patrick R. Roehrdanz, Paul R. Elsen, Kevin Butler, Clint Brown, Jill Cress, Deniz Karagulle, Madeline Martin, Florencia Sangermano, Regan L. Smyth, Terry L. Sohl, Nicholas H. Wolff, Dawn J. Wright, Zhouting Wu

Geography

The urgency to address ecosystem loss is paramount, as both land use change and climate change will continue to rapidly alter and degrade natural ecosystems and reduce the many services they provide. To support conservation actions that mitigate impacts from these dual threats, we have developed potential World Terrestrial Ecosystem (WTE) distributions for 2050 following IPCC best practice guidelines. This projection of ecosystem distributions builds on the previously released 2015 WTEs, a snapshot of the distribution and conservation status of 431 terrestrial ecosystem types defined as distinct combinations of 18 global climate regions, 4 global landform classes, and 8 global …

Booklet Of Green Prompts, Fatima Iqbal, Ali Fayyaz

Institute for Educational Development Pakistan (IED-PK) Archives

This short stories book is an outcome of the Climate Action Fellowship carried out by the Aga Khan University Institute for Educational Development (AKU-IED) and funded by the U.S. Mission in Pakistan.

Igniting Change: Assessing Language Access Gaps For Spanish-Speaking Communities In Wildfire Preparedness Resources In Yakima County, Washington, Rebecca N. Mitre

All Master's Theses

Limited-English proficiency (LEP) individuals across the United States face barriers in accessing information and other resources relating to natural hazard resources, particularly in areas prone to wildfire. In the Pacific Northwest, wildfires are predicted to increase in frequency, severity, and intensity and may also increase the social and economic vulnerability of LEP communities. The 2023 wildfire season underscored how economic, public health, and social impacts disproportionately impact minorities and socially vulnerable communities. This research investigates the inclusion of LEP communities in the development and dissemination of local wildfire resources in Yakima County, using the disaster management cycle as an analytical …

Impact Of Geography On Institutions In Agricultural And Nomadic Societies, Haiwen Zhou

Economics Faculty Publications

How geography affects the choice of institutions is studied in a theoretical model. In this model, nations are located around a circle. Rulers compete through choosing tax rates, the level of military spending, and the degree of formality of institutions. Geographic condition is captured by population density. It is shown that societies with higher population densities choose lower tax rates, establish more formal institutions, and give government officials lower levels of autonomies than those with lower population densities do. A higher level of external threats induces a ruler to choose a higher level of autonomy for officials. The model is …

The Paradox Of Survival: Gendered Food Insecurity, Labor Inequalities, And Coping Strategies During The 2023/4 Drought In Eastern Ethiopia, Meron E. Lemma

Theses and Dissertations--Geography

In drought-prone regions of Eastern Ethiopia, recurring droughts profoundly reshape everyday life in ways that deepen existing gendered inequalities. Drawing on fieldwork conducted in Fedis district, including semi-structured interviews with women, project implementers, and government officials, as well as group discussions with community members, this study explores how women experience, navigate, and resist the gendered impacts of drought. By attending to the sociopolitical dynamics of drought and the development interventions that accompany it, I analyze how these forces restructure labor, land, food systems, and authority in ways that reproduce and exacerbate existing inequalities. Women’s coping strategies, ranging from begging and …

Commercial Attention Spaces: A Century Of Discourses, Measurements, And Models Of Attention In The Construction Of U.S. Advertising Markets, Jacob Saindon

Theses and Dissertations--Geography

A vast assemblage of networked devices populate our everyday spaces. Concomitant with the increasing ubiquity of media devices are advertisements. Indeed, many networked devices, specifically the “free-to-use” software applications, websites, or platforms displayed through them, are advertising-dependent. An assortment of firms within the commercial media industry—brands, agencies, publishers, vendors—work in concert to sustain a market for advertising. The core operation of the commercial media industry, I argue, is the production and exchange of attention as an economic object. In this study, I approach the production of attention and the framing of its markets as spatial processes. The continued growth of …

Flags As Symbols Of Place: Unpacking Geographic Meaning And Identity In Student Flag Designs, Carlos A. Morales-Ramirez

West Chester University Doctoral Projects

Flags have been around for centuries; however, vexillology, the study of flags, was not officially coined until the 1960s. Despite this, there is still a need for more scientific and empirical research. Using qualitative arts-based research (ABR) methodology, this study investigates the creative journey of students in an undergraduate geography course as they design a flag for a place of their choosing. Students were asked to interpret the concept of ‘place’ through their flag designs while also incorporating flag design principles. The results showed that participants selected places tied to themes such as hometown, family, love, memories, and culture often …

Mapping Glams: Creating A National Dataset Of Glams To Develop A Categorical Climate-Change Risk Assessment Scale, Edward Benoitiii, Jill Trepanier, Jennifer Vanos, Emily Fisher, Kaitlyn Bailey, Annie Waddell, Haley Moore, Mandy Hatman, Mary Sidwell, Symonne Russell, Virginia Seger, Paige Boutte, Amanda Latta, Zoe Mohammad, Kyriel Felton, Erin Deliman, Breanna Benson-Pearce, Wendy Johnson, Allyson Russell, Baillie Pretzer, Christopher Reeder, Melissa Mcconnell, Lisa Dahlke, Kaitlynn Melear, Lillian Bodi, Savannah T. Lyle, Zach Lannes, Gwen L. Wells, Benjamin A. Teincuff, Jason M. Straight, Tiffany Rockwell, Shane T. Manthei, Jennifer L. Benner

Faculty Publications

Introduction. The PROTECCT-GLAM project aims to assess and address climate risks for U.S. galleries, libraries, archives, and museums (GLAMs). The project team began with creating a national dataset of GLAMs. Method. The project team used existing datasets that required different auditing and manipulation techniques to align its data. Following the data normalization, the master file included 77,960 entries. Analysis and Results. The project team used ArcGIS Pro to analyze a dataset of galleries, libraries, archives, and museums (GLAMs) for risk from sea level rise, finding 16,877 GLAMs within 30 kilometres of the U.S. coast, with California, New York, Maryland, Florida, …

Advances In Tropical Climatology–A Review, Flávia D.S. Moraes, Craig Ramseyer, Paul W. Miller, Jill C. Trepanier

Faculty Publications

Understanding tropical climatology is essential to comprehending the atmospheric connections between the tropics and extratropical latitudes weather and climate events. In this review paper, we emphasize the advances in key areas of tropical climatology knowledge since the end of the 20th century and offer a summary, assessment, and discussion of previously published literature. Among the key areas analyzed here, we explore the advances in tropical oceanic and atmospheric variability, such as El Niño–Southern Oscillation and the Madden-Julian Oscillation, and how those teleconnection events have helped us to better understand variabilities in tropical monsoons, tropical cyclones, and drought events. We also …

High-Resolution Modeling Of Extreme Heat Events With Socioeconomic Consideration: A Real-Case Wrf-Les Approach, Maryam Golbazi, Frank Liu, Yin-Hsuen Chen, Timothy W. Juliano, Heather Richter

ODU Articles

The overarching goals of this work is to explore best practices for micro-scale modeling of a real case, identify relevant phenomena by using high-resolution modeling, and to explore their implications for public health, and climate resilience strategies in Hampton Roads, VA, USA. This project employs the Weather Research and Forecasting (WRF) model to conduct a comprehensive study of Hampton Roads, utilizing a coupled mesoscale to microscale modeling capable of resolving boundary layer turbulence. This study has three primary objectives: (1) to establish the optimal mesoscale to Large-Eddy Simulation (LES) configurations for complex geographical regions such as the Hampton Roads (HR) …

Evaluating Uas & Als Lidar’S Ability To Detect Understory Shrubs In Rhode Island Forests, Noah Henkenius

Open Access Master's Theses

Understory shrubs provide important habitat for wildlife and assist with nutrient cycling in forests. The use of remote sensing to map shrubs in forest understories is challenging due to the obscuring effect of the forest overstory. We tested the effectiveness of leaf-off aerial LiDAR and uncrewed aerial system (UAS) (point densities of 8+ pts/m² and 250+ pts/m², respectively) to map shrub cover in a mixed deciduous forest in Rhode Island (USA). We used a terrestrial laser scanner (TLS) and field vegetation surveys to provide validation data. We found that UAS and aerial LiDAR had average omission errors …

Plastic Gerontologies: Epigenetic Clocks As Instruments Of The Profitable Medicalization Of Aging, Hans T. Purisch

Theses and Dissertations--Geography

Epigenetic clocks are algorithms that use epigenetic biomarkers of aging to calculate an organism’s ‘biological age.’ Through discursive analysis of commercially available epigenetic clock marketing materials, scientific articles, and interviews with actors in the longevity biotechnology industry, this study examines the commercialization of epigenetic clocks in the form of consumer test-kits. The study argues that longevity biotechnology companies leverage the malleable and fluid qualities of epigenetic markers of biological age to extend the domains of profitable therapies. It shows that epigenetic clock companies market the dynamic qualities of epigenetic biological age measurements to redefine health around the project of optimizing …

Lust, Labor, & Legitimacy: Visibility And Precarity In Platformed Sex Work, Sable J. Augustyn

Theses and Dissertations--Geography

This thesis examines the labor of platformed sex workers, positioning their experiences as a site for understanding the entanglement of multiple intersecting economies. Through qualitative interviews, it explores how sex workers navigate platform infrastructures, manage audience engagement, and contend with visibility as both an economic necessity and a site of risk. Drawing on theories of emotional labor, visibility labor, and platform governance, the project highlights how sex work on digital platforms is shaped by overlapping systems of economic extraction, technological constraint, and cultural regulation. Platformed sex work emerges here as a layered and context-specific practice—embedded within creator ecologies, attraction economies, …

Woke-Lahoma: Anti-Trans Ideology On The Frontlines, Sarah H. Fogel

Theses and Dissertations--Geography

The past decade (2015-2025) of American politics has been marked by a sharp rise in anti-trans politics. Indeed, during this period, anti-trans rhetoric and legislation have become central to American conservative politics more broadly. As the Republican party under Donald Trump works daily to remake the federal government in its image, studying the recent past of Republican-controlled states like Oklahoma offers a window into the future of anti-trans politics at the national scale. This thesis uses a mix of discourse analysis of anti-trans media and participant observation at 2SLGBTQ+ Pride events to analyze the ideological underpinnings of the present-day anti-trans …

Spatializing The Tax Code: Using Property Records To Locate The Fiscal Face Of Rentiership, Michael J. Mccanless

Theses and Dissertations--Geography

This dissertation analyzes how the tax code shapes housing financialization in mid-sized US cities. Employing a mixed-methods approach that integrates critical computational analysis with qualitative fieldwork in Memphis, I examine the role of public rent-seeking in shaping housing financialization in U.S. cities. The first article analyzes the property tax appeal strategies of corporate landlords and their implications for public revenues and municipal budgets. The second article explores how the IRS 1031 exchange provision—which allows for capital gains deferrals when the proceeds of a property sale are reinvested in a ‘like-kind’ property—facilitates the movement of capital from high-cost coastal markets into …

The Houston Climate Justice Museum As A Catalyst For Environmental Justice: Exploring The Intersection Of Art, Activism, And Creative Placemaking In Houston, Texas, Aylin Castro

Theses and Dissertations--Geography

This thesis explores how the Houston Climate Justice Museum (HCJM) functions as a site for environmental/climate justice education through art and community engagement. Drawing on interviews, participant observation, and document analysis, this research examines how the museum’s curating practices generate new understandings of environmental in/justices, fosters local partnerships, and creates a welcoming space for community dialogue. Findings show that the HCJM does more than exhibit art, it demonstrates how art can be leveraged to advance both activist and educational projects. This study positions the HCJM as a model for how local and justice orientated museums and cultural spaces can contribute …

Making Slums Legible, Visible And Calculable: Geospatial Technologies And The Governance Of Urban Land In Mumbai, Sanjana Krishnan

Theses and Dissertations--Geography

This dissertation examines how geospatial technologies are used to make slums in Mumbai legible, calculable, and hypervisible, and how these practices reshape urban land governance. It situates mapping, remote sensing, and algorithmic systems within their political-economic contexts, showing how technologies intending to see the city often function as instruments of dispossession. The research has three interconnected empirical chapters. The first empirical chapter traces the history of slum mapping in Mumbai, from their absences in early development plans to their selective hypervisibility under the contemporary governance regimes. Using critical cartographic methods, it highlights how novel technologies such as remote sensing, biometric …

Map Marker Accuracy: Evaluating Spatial Data Quality In A Simplified Mapping Survey, Christopher Sean Ghormley

Masters in GIS Practicum Reports

Collecting spatial information using maps is a recurring need in research and policy (Evers, 2020; Gottwald et al., 2016; Hitchins, 2018; Tang & Liu, 2016). Survey participants frequently abandon map-based surveys at the first mapping task (Poplin, 2015). In his survey of wildfire risk management personnel, Evers (2020) applied a simplified web-mapping interface that uses circles as the sole input geometry for all spatial representations. The current project examines an updated version of this web map. An anonymous survey gathered data from participants who completed six mapping exercises within Portland, Oregon, and provided feedback on the survey experience. A working …

Assessing Repetitive Loss Factors In Miami-Dade And Broward Counties, Fl, Rebecca Clark

Electronic Theses and Dissertations

This dissertation examines repetitive loss factors in Miami-Dade and Broward Counties, Florida. It focuses on physical building characteristics and socioeconomic characteristics in an historic analysis of claims data from 1977 through 2014. Later, the focus is on predicted areas, or “hotspots” where climate-change induced sea level rise in conjunction with increased storm activity may cause increased flooding in the future. The study employs various statistical models, including Poisson and negative binomial regression modeling, spatial regression modeling and hot spot analysis to analyze FEMA property claims data and socioeconomic indicators.

The first part investigates the relationship between building characteristics and flooding …

The Geography Of Rock Glaciers In The American West, Allison Reese Trcka, Andrew G. Fountain, Bryce Allen Glenn

Geology Faculty Publications and Presentations

Rock glaciers are relatively common in conterminous United States west of the 100° meridian, yet their distribution and number are not well known. Using aerial and satellite imagery, we inventoried the population of rock glaciers, yielding 2,257 rock glaciers totaling 234.28 km² with an area of uncertainty of 7 percent. Of these, 1,561 (155.44 km²) are considered intact (moving) and 696 (76.84 km²) relict. Based on published estimates of ice content, total water-equivalent volume is roughly 2.52 km³. Rock glacier elevations increase from the northwest (Washington) to the southeast (Colorado), following a spatial …