Geography Commons^™

Policy Effects Of Resistance Against Mega-Projects In Latin America: An Introduction, Eduardo Silva, Maria Akchurin, Anthony J. Bebbington

Geography

In this introductory article, we present the special issue and outline our research agenda on extractive development, social mobilization, and policy impact in Latin America. We propose a shift in analytical focus from the study of resistance to studying the policy and institutional impacts of mobilization. We outline possible outcomes of interest and conditions contributing to the attainment of policy and institutional change. These conditions include movement characteristics - such as coalitions, repertoires, and alliances with state actors - and the socioeconomic, political, and ideational conditions that shape and constrain patterns of mobilization and the likelihood and durability of its …

Upside-Down Fluxes Down Under: Co2 Net Sink In Winter And Net Source In Summer In A Temperate Evergreen Broadleaf Forest, Alexandre A. Renchon, Anne Griebel, Daniel Metzen, Christopher A. Williams, Belinda Medlyn, Remko A. Duursma, Craig V.M. Barton, Chelsea Maier, Matthias M. Boer, Peter Isaac, David Tissue, Victor Resco De Dios, Elise Pendall

Geography

Predicting the seasonal dynamics of ecosystem carbon fluxes is challenging in broadleaved evergreen forests because of their moderate climates and subtle changes in canopy phenology. We assessed the climatic and biotic drivers of the seasonality of net ecosystem-atmosphere CO2 exchange (NEE) of a eucalyptus-dominated forest near Sydney, Australia, using the eddy covariance method. The climate is characterised by a mean annual precipitation of 800mm and a mean annual temperature of 18°C, hot summers and mild winters, with highly variable precipitation. In the 4-year study, the ecosystem was a sink each year (-225gCm-2yr-1 on average, with a standard deviation of 108gCm-2yr-1); …

Natural Climate Solutions For The United States, Joseph E. Fargione, Steven Bassett, Timothy Boucher, Scott D. Bridgham, Richard T. Conant, Susan C. Cook-Patton, Peter W. Ellis, Alessandra Falcucci, James W. Fourqurean, Trisha Gopalakrishna, Huan Gu, Benjamin Henderson, Matthew D. Hurteau, Kevin D. Kroeger, Timm Kroeger, Tyler J. Lark, Sara M. Leavitt, Guy Lomax, Robert I. Mcdonald, J. Patrick Megonigal, Daniela A. Miteva, Curtis J. Richardson, Jonathan Sanderman, David Shoch, Seth A. Spawn, Joseph W. Veldman, Christopher A. Williams, Peter B. Woodbury, Chris Zganjar, Marci Baranski, Patricia Elias, Richard A. Houghton

Geography

Limiting climate warming to <2°C requires increased mitigation efforts, including land stewardship, whose potential in the United States is poorly understood. We quantified the potential of natural climate solutions (NCS)-21 conservation, restoration, and improved land management interventions on natural and agricultural lands-to increase carbon storage and avoid greenhouse gas emissions in the United States. We found a maximum potential of 1.2 (0.9 to 1.6) Pg CO2e year−1, the equivalent of 21% of current net annual emissions of the United States. At current carbon market prices (USD 10 per Mg CO2e), 299 Tg CO2e year−1 could be achieved. NCS would also provide air and water filtration, flood control, soil health, wildlife habitat, and climate resilience benefits.

Evaluating Wildlife Vulnerability To Mercury Pollution From Artisanal And Small-Scale Gold Mining In Madre De Dios, Peru, K. E. Markham, Florencia Sangermano

Geography

Illegal, artisanal and small-scale gold mining (ASGM) often occurs in remote highly biodiverse areas, such as the Madre de Dios region of Peru. Mercury used in gold mining bioaccumulates in the environment and poses developmental, hormonal, and neurological threats to wildlife. The impact of ASGM on biodiversity remains largely unknown. We used geographic information science to create a spatial model of pollution risk from mining sites, in order to predict locations and species assemblages at risk. Multicriteria evaluation was used to determine how flow accumulation, distance from mining areas, total suspended sediment load, and soil porosity influenced the vulnerability of …

Conflicts Over Extractivist Policy And The Forest Frontier In Central America, Anthony J. Bebbington, Laura Aileen Sauls, Herman Rosa, Benjamin Fash, Denise Bebbington

Geography

Central America is characterized by an asymmetric forest transition in which net deforestation is a product of both forest loss and patches of forest resurgence. Forest loss is also associated with rights violations. We explore the extent to which extractive industry and infrastructure investments create pressure on forest resources, community rights and livelihoods. Drivers of this investment are identified, in particular: constitutional, legislative and regulatory reforms; energy policies; new financial flows; and ideas of development emphasizing the centrality of infrastructure in combining geographical integration and economic growth. We discuss forms of contentious action that have emerged in response to these …

Maximising The Contributions Of Phd Graduates To National Development: The Case Of The Seychelles, Marina Fatima Confait

Theses: Doctorates and Masters

A Doctor of Philosophy (PhD) degree is the pinnacle of educational attainment and the most respected of the doctoral programs. The degree certifies the holder as an independent researcher, an expert with extensive knowledge about the chosen field of study, and a professional with a wide range of transferable skills . As such, PhD graduates have the capability to make important contributions to knowledge and drive change in society. Furthermore, PhD graduates represent accumulated human capital, a valuable human resource with potential for making significant contributions to a country’s development. This can materialise through enhancing the knowledge of others, performing …

Fpga-Based On-Board Geometric Calibration For Linear Ccd Array Sensors, Guoqing Zhou, Linjun Jiang, Jingjin Huang, Rongting Zhang, Dequan Liu, Xiang Zhou, Oktay Baysal

Mechanical & Aerospace Engineering Faculty Publications

With increasing demands in real-time or near real-time remotely sensed imagery applications in such as military deployments, quick response to terrorist attacks and disaster rescue, the on-board geometric calibration problem has attracted the attention of many scientists in recent years. This paper presents an on-board geometric calibration method for linear CCD sensor arrays using FPGA chips. The proposed method mainly consists of four modules—Input Data, Coefficient Calculation, Adjustment Computation and Comparison—in which the parallel computations for building the observation equations and least squares adjustment, are implemented using FPGA chips, for which a decomposed matrix inversion method is presented. A Xilinx …

Towards An Improved Typology Approach To Segmenting Cultural Tourists, Ganghua Chen, Songshan (Sam) Huang

Research outputs 2014 to 2021

This study aims to improve the cultural tourist typology methodology that uses cultural centrality and depth of cultural experience in its framework. Using a sample of Chinese tourists in Macau (n = 595) collected via questionnaire surveys, the study confirmed the determination effect of cultural centrality on depth of cultural experience. Subsequently, the study demonstrated an improved approach that eliminates such a determination effect in typology identification. Compared to McKercher's () approach, the improved typology presents a balanced segmentation of cultural tourists and distinguishes the segments more clearly in their sociodemographic characteristics. The improved typology generated more meaningful practical implications.

A Cartographic Workflow Manual For Endangered Species Conservation, Martin P. Viereckl

Graduate Student Theses, Dissertations, & Professional Papers

In response to global consumer demand for rare and exotic wildlife products, poaching of endangered species has become pervasive around the world (Eliason 1999). Despite the enactment of CITES, and other international efforts to protect vulnerable species from overexploitation, the global market for illegal wildlife products is estimated as high as $20-billion a year industry (Wyler 2008). Within important wildlife habitat sites, law enforcement struggle to curb rampant poaching that threatens the ultimate survival of many endangered species (Jachmann 2008; Rowcliffe 2004). Law-enforcement agencies responsible for protecting wildlife from poachers often lack geospatial tools that could greatly improve the effectiveness …

Assessing Historical Planform Channel Change In An Altered Watershed With Quantification Of Error And Uncertainty Present In A Gis/Aerial Photography-Based Analysis; Case Study: Minnesota River, Minnesota, Usa., Devon Libby

All Graduate Theses, Dissertations, and Other Capstone Projects

Little is known about the historic planform channel change of the Minnesota River of south-central Minnesota, USA. This is despite research that demonstrates anthropogenic activities have altered the Minnesota River Basin's hydrology, land use, and climate. In addition, the threat of invasive carp infestation requires an understanding of Minnesota River planform change to assess mitigation strategies. This thesis focuses on the lower Minnesota River (LMR) by measuring planform channel change (lateral channel migration, width, and sinuosity) from 1937 to 2013. Analysis is conducted by utilizing remote/GIS analysis of historic aerial photographs. A secondary focus addresses and quantifies the inherent/introduced error/uncertainly …

Representing Wilderness In The Shaping Of America's National Parks: Aesthetics, Boundaries, And Cultures In The Works Of James Fenimore Cooper, John Muir, And Their Artistic Contemporaries, Alana Jajko

Master’s Theses

This project studies the works of James Fenimore Cooper, John Muir, and their artistic contemporaries in relation to the shaping of America’s national parks and what it means for the parks and their attending wilderness to be symbolic of the nation. It seeks to reveal the national parks as artistic representations of a constructed wilderness, while also emphasizing the physical experience of the natural world as a means of supplementing our subjective views. Through the lenses of aesthetics, boundaries, and cultures, I narrow my study to focus on three distinct perspectives by which we can understand the national parks and …

A Comparative Assessment Of Food Deserts Using Geographic Information Systems (Gis) In El Paso County, Tx And Loudoun County, Va, Amit Ugamraj Raysoni

Open Access Theses & Dissertations

BACKGROUND & SIGNIFICANCE: Consumption of processed foods high in sodium and fat can have a plethora of health complications, including, but not limited to hypertension, high cholesterol levels, obesity, diabetes and cancer. Previous studies have documented that lack of access to viable healthy eating options' grocery stores selling affordable fresh fruits and vegetables - in any neighborhood or area can result in negative public health outcomes. These areas devoid of such grocery stores and healthy eating options can be classified as "Food Deserts", as per one of the criteria adopted by the United States Department of Agriculture (USDA). In addition, …

Design Of Robotic Tram Unit For Field Data Collection, Quetzalcoatl Mendoza Rosas

Open Access Theses & Dissertations

Satellite remote sensing is the most applied method for detection and measurement of electromagnetic energy and its interaction with Earth surface. the analysis of the data acquired can provide important information with uses in areas as like weather forecasting, military intelligence and environmental and resources location. Due to the great distance from where the samples are taken and even with the most sophisticated sensor it is impossible to have an exactly replica of the Earth surface. As a result, scientist analyze imagery where a single pixel can be the representation of a 30 by 30 meters area of land. This …

Participatory Gis As A Tool For Stakeholder Engagement In Building Resilience To Sea Level Rise: A Demonstration Project, Juita-Elena (Wie) Yusuf, Pragati Rawat, Carol Considine, Michelle Covi, Burton St. John Iii, J. Gail Nicula, Khairul A. Anuar

School of Public Service Faculty Publications

This article describes a participatory geographical information system (PGIS) demonstration project used as part of the stakeholder engagement efforts undertaken by the Citizen Engagement Working Group of the Hampton Roads Sea Level Rise Preparedness and Resilience Intergovernmental Planning Pilot Project. The PGIS demonstration project was conducted in the Little Creek/Pretty Lake case study area in the Hampton Roads region of southeastern coastal Virginia. PGIS served as a deliberative and participatory mechanism to obtain local knowledge from residents about the location of valued assets within the community and locations challenged by increased flooding and sea level rise. The PGIS application, using …

Knowledge Processes And The Potential For Adaptive Governance Of Inshore Fisheries In The Solomon Islands, Amber W. Datta

Graduate Student Theses, Dissertations, & Professional Papers

Rapid environmental change, ranging from the collapse of fisheries to the rise of sea levels, poses significant challenges for the governance of marine resources. In Pacific Island Countries and Territories (PICTs), these changes result in the loss of marine resources, threatening both the biodiversity of coastal ecosystems and the communities that rely on them. Existing top-down, centralized forms of environmental governance lack the flexibility needed to address these issues especially at local scales, while bottom-up approaches often lack the coordination and authority needed to respond quickly to change. More adaptive forms of marine governance are needed to ensure that PICTs …

The Sylvan Blindspot: The Archaeological Value Of Surface Vegetation And A Critique Of Its Documentation, John S. Harris

Graduate Student Theses, Dissertations, & Professional Papers

Surface vegetation at archaeological sites is a resource overlooked in cultural resource management. Drawing upon comparative documentary surveys of site forms and human surveys of 161 archaeologists in 12 U.S. states, this thesis explores why surface vegetation offers archaeological data potential; how archaeological documentation is an artifact of archaeologists, shaped by various subjectivities; and how improvements can be made for vegetal description in cultural inventory site forms. The surveys offer a critique on how the site form records are a product of disciplinary training oversights, differing work background experience, cultural bias, limitations in botanical knowledge, regional differences in U.S. archaeological …

Reproduction Of Space In The Mountains Of Morocco: A Case Study In The Western Rif, Ismail Medkouri

Graduate Student Theses, Dissertations, & Professional Papers

The environmental history of the mountains in Morocco was written under the French colonial administration; and its revision upon independence was biased toward an Arabist perspective. These historical narratives significantly influence the study of contemporary spatial phenomena, typically by undermining the validity of the vernacular mode of production of space. This study (1) reviews key myths pertaining to the spatial history and transformation in mountainous areas in Morocco; and (2) analyzes the contemporary mountain settlement of Ain Mediouna, Province of Taounate in light of a revised environmental narrative. Methods include the following: (1) historical document analysis; and (2) morphogenetic analysis …

Just Open A Window: Understanding The Vulnerability To Summer Heat Of A Mountain Community In The Western United States, Missoula, Mt, Julie J. Tompkins

Graduate Student Theses, Dissertations, & Professional Papers

How do we conceptualize vulnerability or resiliency to a natural hazard when it has not historically been understood as such? This study focuses on Missoula, located in mountains of western Montana, which has steadily grown by 1-2% per year to almost 75,000 residents. The formerly temperate quality of its winters and summers has also been changing. Projections from the 2017 Montana Climate Assessment estimate the state will experience a 2-5°F increase in mean annual air temperature over the next two decades, prompting city and county officials to plan for scenarios not formerly in their consideration. Of further concern is the …

Glacial Deposits, Vol. 43, 2018, Department Of Geography, Geology, And The Environment

Glacial Deposits

Newsletter of the Department of Geography, Geology, and the Environment

Place Over Politics: Power, Strategy, Terrain, And Regime Type In Interstate War Outcomes, 1816-2003, Connor Joseph Sprayberry Sutton

Wayne State University Dissertations

While the study of war occurrence is among the primary considerations of the field of international relations, only recently has attention turned towards the study of war outcomes. This attention is best represented by the democratic victory proposition, which suggests that democracies win the majority of their wars by virtue of being democratic. However, elements of this study are currently incipient. In turn, this dissertation generates a novel set of variables to measure the impact of terrain on war outcomes, including measures of spatial extent, topographic heterogeneity, and land cover heterogeneity. These metrics are generated for all 94 interstate wars …

Community Development Corporations In The Right-Sizing City: Remaking The Cdc Model Of Urban Redevelopment, Melissa Heil

Faculty Publications - Geography, Geology, and the Environment

Right-sizing planning operates on a notion that investing in the built environment throughout the entirety of a depopulating city is detrimental to the city’s redevelopment and long-term stability. This notion is antithetical to the activities of many community development corporations (CDCs) that build and manage physical development projects in distressed and depopulating neighborhoods. As such, in cities dominated by right-sizing efforts, the role of CDCs is being reconsidered and reinvented. This article considers the case of Detroit’s community development system, identifying the constraints and opportunities for CDCs under the new political economic context of right-sizing. The findings demonstrate that the …

Volunteer Environmental Stewardship And Affective Labour In Philadelphia, Alec Foster

Faculty Publications - Geography, Geology, and the Environment

Recent research has critically evaluated the rapid growth of volunteer urban environmental stewardship. Framings of this phenomenon have largely focused upon environmentality and/or neoliberal environments, unfortunately often presenting a totalising picture of the state and/or market utilising power from above to create environmental subjects with limited agency available to local citizens. Based upon qualitative research with volunteer urban environmental stewards in Philadelphia, affective labour is proposed as an alternative explanation for participation. Stewards volunteered their time and labour due to the intense emotional attachments they formed with their neighbourhoods, neighbours, and nonhuman others in relationships of affective labour. Volunteer urban …

Crop Height Estimation With Unmanned Aerial Vehicles, Carrick Detweiler, David Anthony, Sebastian Elbaum

School of Computing: Faculty Publications

An unmanned aerial vehicle (UAV) can be configured for crop height estimation. In some examples, the UAV includes an aerial propulsion system, a laser scanner configured to face downwards while the UAV is in flight, and a control system. The laser scanner is configured to scan through a two-dimensional scan angle and is characterized by a maxi mum range. The control system causes the UAV to fly over an agricultural field and maintain, using the aerial propulsion system and the laser scanner, a distance between the UAV and a top of crops in the agricultural field to within a programmed …

Science At Engineer Cantonment, Hugh H. Genoways, Brett C. Ratcliffe, Carl R. Falk, Thomas E. Labedz, Paul R. Picha, John R. Bozell

University of Nebraska State Museum: Mammalogy Papers

Conclusions

It is our contention that Thomas Say, Titian Peale, Edwin James, and their colleagues of the Stephen Long Expedition of 1819–1820 were heavily engaged in scientific research, which took the form of the first biodiversity inventory undertaken in the United States. This accomplishment has been overlooked both by biologists and historians, but it should rank among the most significant accomplishments of the expedition. The results of this inventory continue to inform us today about environmental, faunal, and floral changes along the Missouri River in an area that is known to be an ecotone between the deciduous forests of the …

American Black Bear Den-Site Selection And Characteristics In An Urban Environment, Toryn L. J. Schafer, Stewart W. Breck, Sharon Baruch-Mordo, David L. Lewis, Kenneth R. Wilson, Julie S. Mao, Thomas L. Day

United States Department of Agriculture Wildlife Services: Staff Publications

Selection of den sites is a crucial aspect of American black bear (Ursus americanus) life history. High-quality dens provide thermal insulation, protection from disturbance, suitable environment for parturition and cub development, and proximity to available forage upon emergence. Black bears are increasingly coexisting with people in human-dominated landscapes; however, little is known about whether urban environments influence characteristics of dens and den site selection. Our objective was to determine the effect of housing density (a proxy for human activity and availability of anthropogenic resources) on selection of den sites in years of good and poor natural forage.We additionally …

Exploring Spatial And Temporal Variability Of Soil And Crop Processes For Irrigation Management, Javier Reyes

Theses and Dissertations--Plant and Soil Sciences

Irrigation needs to be applied to soils in relatively humid regions such as western Kentucky to supply water for crop uptake to optimize and stabilize yields. Characterization of soil and crop variability at the field scale is needed to apply site specific management and to optimize water application. The objective of this work is to propose a characterization and modeling of soil and crop processes to improve irrigation management. Through an analysis of spatial and temporal behavior of soil and crop variables the variability in the field was identified. Integrative analysis of soil, crop, proximal and remote sensing data was …

Temporal Changes In Submarine Groundwater Discharge In A Georgia Salt Marsh, Tanner C. Avery, Jacque L. Kelly

Earth, Environment & Sustainability: Faculty Presentations (1988-2022)

No abstract provided.

Temporal Trends In Human Vulnerability To Excessive Heat, Scott C. Sheridan, Michael J. Allen

Political Science & Geography Faculty Publications

Over recent decades, studies have examined various morbidity and mortality outcomes associated with heat exposure. This review explores the collective knowledge of the temporal trends of heat on human health, with regard to the hypothesis that humans are less vulnerable to heat events presently than in the past. Using Web of Science and Scopus, the authors identified all peer-reviewed articles that contained keywords on human impact (e.g. mortality, morbidity) and meteorological component (e.g. heat, heatwave). After sorting, a total of 71 articles, both case studies and epidemiological studies, contained explicit assessments of temporal trends in human vulnerability, and thus were …

Satellite Remote Sensing Of Woody And Herbaceous Leaf Area For Improved Understanding Of Forage Resources And Fire In Africa, Milkah Njoki Kahiu

Electronic Theses and Dissertations

In sub-Saharan Africa (SSA) tree-grass systems commonly referred to as savannas dominating drylands, play a critical role in social, cultural, economic and environmental systems. These coupled natural-human systems support millions of people through pastoralism, are important global biodiversity hotspots and play a critical role in global biogeochemical cycles. Despite the importance of SSA savannas, they have been marginalized for years as most governments neglect dryland resources in favor of agricultural research and development assistance. Hence, lack of spatially and temporally accurate information on the status and trends in savanna resources has led to poor planning and management. This scenario calls …

Water Demand, Adaptive Capacity, And Drought: An Analysis Of The Upper Klamath Basin, Oregon And California, Patricia Snyder

All Master's Theses

Freshwater demand and scarcity issues are an issue of global concern, in particular for the American West as global climate models suggest precipitation regime changes and an increase of drought. This research conducts a case-study of the Upper Klamath Basin, located in south-central Oregon and northern California, a microcosm of the arid and semi-arid American West that experienced an economically, socially, and ecologically impactful drought in the early 2000s. Through a mixture of qualitative and quantitative methods this research: 1) identifies key stakeholders, their goals and key policies; 2) conducts an adaptive capacity assessment of water management within the basin; …