Digital Commons Network^™

Verification Of Real-Time Smoke Simulations: A Case Study On Early Summer North American Wildfire Events, Daniel Bonilla

Pitzer Senior Theses

As wildfire intensity and frequency escalate in times of unprecedented climate change and severe droughts, it is important to enhance forecasting models that accurately and efficiently predict wildfire smoke movement. NOAA’s experimental Rapid-Refresh Forecasting System with Smoke and Dust (RRFS-SD) aims to improve upon the High-Resolution Rapid Refresh- Smoke (HRRR-Smoke), by extending the domain to include all of North America and incorporating new developments in physics and wildfire parameterizations. Our work explores the process of adding satellite Aerosol Optical Depth (AOD) data, through AERONET, as an additional method of verification of the RRFS-SD experimental model. Using a case study on …

Identifying The Spread Of Invasive Jumping Worms Across Maine’S Forests Using Soil Edna, Rebecca Wanger

Honors Theses

Jumping worms of the Megascolecidae family are invasive earthworms from East Asia that have been spreading across the United States since the late 1800s (Chang et al., 2021). Recently, the earthworms have gained more attention for their expansion into northeastern states, as they are believed to have negative impacts on the soil biogeochemistry, flora, and fauna of these forest ecosystems that have had no native earthworms given the recent nature of the Last Glacial Maximum (~11,000 yrs ago; Bohlen et al. 2004; McCay et al. 2020). The earthworms are distinguished by their thrashing behaviors, milky-white smooth clitellum, and evenly spaced …

Successful Eastern Oyster (Crassostrea Virginica) Recruitment On Intertidal Artificial Substrates In Virginia, Usa, Rochelle D. Seitz, Kathleen E. Knick, Emily Suchonic, Amanda Pysher

OES Faculty Publications

Declines of eastern oyster (Crassostrea virginica) populations and scarcity of natural oyster shell necessitate quantifying the effectiveness of artificial oyster reef substrates over varying environmental conditions. Oyster castles are often used in intertidal areas with moderate wave energy; however, new concrete, natural-looking substrates, GROW Reef Tiles, are now available. Eastern oyster recruitment and size on oyster castles (OC) and GROW Reef Tiles (GT), with 27% higher surface area on OC, were assessed three times over 25 months in locations with varying salinity. Four sites in the Chesapeake Bay region were examined: Cherrystone Inlet, Mockhorn Bay, Elizabeth River, and …

Unveiling Hidden Mercury And Methylmercury Sources: The Role Of Submarine Groundwater Discharge In Coastal Lagoons, Céline Lavergne, Júlia Rodriguez-Puig, Clara Ruiz-González, Maria Montero-Curiel, Gemma Casas, Daniel Romano-Gude, Irene Alorda-Montiel, Júlia Dordal-Soriano, Aaron Alorda-Kleinglass, Marc Diego-Feliu, Javier Gilabert, Alex Campillo-De La Maza, Cristina Romera-Castillo, Natalia Torres-Rodriguez, Lars-Eric Heimbürger-Boavida, Jordi Garcia-Orellana, Valenti Rodellas, Andrea G. Bravo

OES Faculty Publications

Mercury loads from Submarine Groundwater Discharge (SGD) may represent an overlooked source of methylmercury (MeHg) to the ocean, affecting human and ecosystem health. The SGD process involves the flow of fresh, saline, or mixed groundwater from coastal aquifers into the oceans classified in different components. Existing studies rarely report the fluxes supplied by the different SGD components; therefore, the relevance of SGD as a source of mercury remains unclear. We aimed to quantify SGD-driven mercury/methylmercury fluxes to the coast, focusing on the largest coastal lagoon in the western Mediterranean. We measured total dissolved mercury and MeHg in surficial and porewaters …

Characterization Of Microbial Biofilms On Marine Plastics: Community Development And Density Implications For Vertical Transport Dynamics, Gregory M. Joern, Rut Pedrosa-Pàmies, Xiangtao Jiang, Zhanfei Liu, Alexander B. Bochdansky

OES Faculty Publications

Marine plastic pollution poses a significant and escalating threat to ocean ecosystems, with microbial colonization on plastics playing a critical role in determining their environmental fate. Despite the recognized importance of microbial biofilms, their composition, dynamics, and functional contributions on buoyant plastics remain poorly understood. In this study, we leveraged a novel integrative approach by simultaneously employing 16S, 18S, and ITS sequencing alongside microscopy, lipidomics, pigment analysis, adenosine triphosphate and biogenic silica quantification. This comprehensive methodology allowed for a thorough characterization of microbial growth and community dynamics on plastic debris in a mid-latitude, tidal sub-estuary. Our analyses consistently identified diatoms, …

Spatial Analysis Of American Chestnut (Castanea Dentata) Distribution And Ecology In Kentucky’S Federal Lands, Jacob Raymond Pease

Murray State Theses and Dissertations

Anthropogenic factors have been the cause of the decline of tree species across the globe. From unsustainable logging and development to disease and improper management, threats to forests have taken their toll. The American chestnut (Castanea dentata) was once an integral basal tree species in Appalachian forests, but chestnut blight drove the species to functional extinction by the mid-1900s. The recent creation of genetically modified chestnuts gives hope for future restoration of the species throughout its historical range. Despite blight resistance, effective restoration will require optimal site selection for finding and planting chestnuts, which will maximize limited resources. …

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 …

Dataset For "The Role Of Metacognition And Confidence In Quantitative Reasoning In College Biology Courses", Joseph Dauer, Anum Khushal, Brian A. Couch, Robert L. Mayes, Kent Rittschof

School of Natural Resources: Faculty Publications

Quantitative modelling is a fundamental skill for biology students with performance determined by a host of cognitive and metacognitive resources and requiring instructors to integrate key quantitative dimensions into teaching biology. Using an assessment of quantitative modelling in biology, we explored biology students’ (n = 930 higher education students) modelling practices (i.e., abilities to create, test, revise), metacognition about the nature of models and confidence in their capabilities to model. Students performed best on items related to understanding variables used in models and performed more poorly on items related to interpreting, creating, and using models to understand biological phenomena. …

Consumption Pressure In Estuaries Peaks At Intermediate Salinities, Catherine E. De Rivera, Amy A. Larson, Benjamin G. Rubinoff, Luna R. Soto, Seth L. Wright, Edwin D. Grosholz, Gregory M. Ruiz, Andrew L. Chang

Environmental Science and Management Faculty Publications and Presentations

The nature and strength of biotic interactions change along stress gradients, but the importance of these interactions across estuarine gradients is under studied. Here, we examined how consumption varies across estuarine salinity gradients by deploying standardized baits (‘squidpops’) to measure consumption pressure along the gradients of five estuaries in Oregon, USA. The relationship between consumption and stress was nonlinear: consumption pressure peaked slightly at mid salinity and decreased at low salinity, especially as temperature increased, in the five estuaries studied. This finding does not support either of two existing models for consumption across gradients, including the Consumer Stress Model and …

Recovering Population Of The Southern Sea Otter Suppresses A Global Marine Invader, Rikke Jeppesen, Catherine E. De Rivera, Edwin D. Grosholz, M. Tim Tinker, Brent B. Hughes, Ron Eby, Kerstin Wasson

Environmental Science and Management Faculty Publications and Presentations

Understanding the role of apex predators on ecosystems is essential for designing effective conservation strategies. Supporting recovery of apex predators can have many benefits; one that has been rarely examined is control of invasive prey. We investigated whether a recovering apex predator, the southern sea otter (Enhydra lutris nereis), can exert local control over a global marine invader, the green crab (Carcinus maenas). We determined that southern sea otters in Elkhorn Slough estuary in California can consume large numbers of invasive green crabs and found strong negative relationships in space and time between otter and green crab abundance. Green crabs …

Collaborative Wildfire Governance Within The Southwest Idaho Wildfire Crisis Strategy Landscape: Survey Results 2025, Mahmood Muttaqee, Cody R. Evers, Lindsay K. Campbell, Max Nielsen-Pincus, Olivia Awbrey, Kathryn Hixson, Michelle Johnson, Erika Svendsen

Environmental Science and Management Faculty Publications and Presentations

Collaboration plays a critical role in wildfire risk mitigation efforts. This study examines collaborative wildfire governance networks within Southwest Idaho, a priority landscape designated in 2022 under the USDA Forest Service's Wildfire Crisis Strategy (WCS). Through survey data from 64 respondents, the Fueling Adaptation study aimed to identify the structure, capacity, and gaps in governance networks addressing wildfire risk in Southwest Idaho and understand how WCS investments have influenced wildfire management in the area. The findings reveal a growing governance network centered on the USDA Forest Service and the Idaho Department of Lands and supported by numerous non-governmental organizations and …

Quantifying The Vulnerability Of Smooth Dogfish And Winter Skate To Electromagnetic Fields From Offshore Wind Transmission Cables In The Mid-Atlantic Shelf, Rachel A. Sechrist

Theses, Dissertations and Culminating Projects

The development of offshore wind structures in the northeastern U.S. will contribute to renewable energy goals, but will overlap with many marine species as well as economically important fisheries. High voltage transmission cables from offshore wind farms emit electromagnetic fields (EMFs) that elasmobranchs may detect using sensory organs known as ampullae of Lorenzini. However, sensitivity to EMFs varies by species due to differences in the number and arrangement of pores, the length of subdermal canals within the ampullae of Lorenzini sensory network, and the habitats they reside and regions they forage. For species who reside or forage in benthic regions, …

Nebraska Water Center Annual Report 2025

Nebraska Water Center: Administrative Materials

Training Nebraska's future water professionals, research publications, water sciences laboratory impact and know your well curriculums and community impact

Impact Of An Herbicide Treatment In An Annual Grass Invaded Sagebrush Steppe, Jordan Dino Santia

Undergraduate Scholarship

Globally, rangelands are being threatened by invasive annual grasses (IAGs) that alter fire regimes, drive vegetation type conversion, and alter ecosystem function. This study evaluates vegetation responses to an Imazapic treatment applied in 2020 to control a population of Taeniatherum caput-medusae, an IAG, that flourished following a severe wildfire in 2013. The site, located on a Bureau of Land Management (BLM) grazing allotment east of Klamath Falls, Oregon, has been monitored annually using the Assessment, Inventory, and Monitoring (AIM) protocol since the Summer of 2022. Over this period, very little T. caput-medusae has been detected while bare ground has …

Tallgrass Prairie Center 2024-2025 Highlights, University Of Northern Iowa. Tallgrass Prairie Center.

Annual Reports

Contents:

--- Staff
--- From our Director
--- Iowa Roadside Management: Enhancing our public roadsides
--- Research and Restoration: Native seeds and methods for prairie reconstruction
--- Plant Materials: A prairie pedigree for Iowa’s roadsides and beyond
--- Irvine Prairie: Restoring a piece of the original Iowa landscape
--- Prairie on Farms: Making prairie practical
--- Prairie Roots Project: A deeper appreciation of the prairie ecosystem
--- Green Iowa AmeriCorps: Service members expand TPC capacity
--- A Hidden Gem - UNI's Biological Preserves: A legacy of service and partnership
--- UNI Students at the TPC: Practical experience in support of …

Spatio-Temporal Variation, Source Apportionment, And Health Risk Assessment Of Pm2.5 In The Urban Park Of Bangkok, Yan Zhang

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study presents a comprehensive analysis of PM2.5 pollution in urban parks across Bangkok, Thailand, investigating its spatio-temporal variations, chemical composition, sources, and associated health risks. PM2.5 samples were collected from six urban parks during wet and dry seasons in 2021 (peak COVID-19 lockdown), 2022 (post-lockdown), and 2024. Chemical characterization revealed that carbonaceous species (OC, EC, WSOC) were the dominant components, contributing 29.4% to 47.8% of PM2.5 mass. Concentrations were significantly higher in the dry season (mean: 19.9 ± 9.0 μg/m³ at Chulalongkorn Park) than the wet season (13.6 ± 6.6 μg/m³), with dry-season levels exceeding the WHO 24-hour guideline …

การประเมินผลการใช้น้ำเสียบำบัดในระบบไฮโดรพอนิกส์ : การเปลี่ยนแปลงของไนโตรเจน การเติบโตของผักกาดหอม และกลุ่มชุมชนของจุลินทรีย์บริเวณราก, พชร ป่ากว้าง

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้ศึกษาการนำน้ำเสียที่ผ่านการบำบัดจากระบบเติมอากาศของอาคารหอสมุดกลาง จุฬาลงกรณ์มหาวิทยาลัย กลับมาใช้ในระบบไฮโดรพอนิกส์เพาะปลูกผักกาดหอม (Lactuca sativa) เพื่อส่งเสริมการจัดการน้ำอย่างยั่งยืนและการใช้ทรัพยากรหมุนเวียน การทดลองออกเป็น 3 ระยะตามอัตราส่วนน้ำเสียบำบัด ได้แก่ 50% (ระยะที่ 1), 100% (ระยะที่ 2) และ 75% (ระยะที่ 3) เปรียบเทียบกับระบบควบคุมที่ใช้สารละลายปุ๋ยไฮโดรพอนิกส์ ศึกษาการเปลี่ยนแปลงของไนโตรเจน ได้แก่ แอมโมเนียม (NH4+), ไนไตร์ท (NO2-), ไนเตรต (NO3-), และ ไนโตรเจนคเจดาลห์ (TKN) และประเมินผลต่อการเจริญเติบโตและปริมาณไนโตรเจนของผักกาดหอม ตลอดระยะเวลาเพาะปลูก 28 วัน มีการเก็บตัวอย่างน้ำเพื่อวิเคราะห์คุณภาพน้ำ และสุ่มเก็บตัวอย่างรากเพื่อศึกษาความหลากหลายของชุมชนจุลินทรีย์ ผลการทดลองพบว่าอัตราส่วนของน้ำเสียบำบัดมีผลต่อการเจริญเติบโตของผักกาดหอมอย่างมีนัยสำคัญทางสถิติ โดยระบบที่ใช้น้ำเสียบำบัด 100% ให้ผลผลิตสูงสุดทั้งในด้านน้ำหนักสด น้ำหนักแห้ง และปริมาณไนโตรเจน ซึ่งแนวโน้มนี้สอดคล้องกับความเข้มข้นไนเตรตและ TKN ในน้ำ แสดงถึงความเพียงพอของธาตุอาหาร โดยเฉพาะไนโตรเจน ขณะเดียวกันการวิเคราะห์ชุมชนจุลินทรีย์บริเวณรากพบว่าระบบน้ำเสียบำบัดมีความหลากหลายสูงกว่าระบบควบคุม โดยพบแบคทีเรียเด่นใน สกุล Altererythrobacter รวมถึงสกุล midas_g_859 ซึ่งอยู่ในอันดับ Thermomicrobiales และสกุลของแบคทีเรียในไฟลัม Armatimonadotaซึ่งเกี่ยวข้องกับการย่อยสลายอินทรียวัตถุและการเปลี่ยนรูปไนโตรเจน ส่วนระบบควบคุมพบแบคทีเรียเด่นในสกุลของวงศ์ Rhizobiaceae และสกุล Bosea ซึ่งมีบทบาทสำคัญในการตรึงไนโตรเจนและช่วยเพิ่มความสามารถในการดูดซึมสารอาหารของพืช ดังนั้นการนำน้ำเสียบำบัดกลับมาใช้ในระบบไฮโดรพอนิกส์จึงมีศักยภาพในการส่งเสริมการเจริญเติบโตของผักกาดหอมได้อย่างมีประสิทธิภาพ แต่การปรับสมดุลธาตุอาหารและคุณภาพน้ำก่อนใช้งานจริงยังเป็นสิ่งจำเป็น ผลการศึกษานี้จึงสามารถเป็นแนวทางพัฒนาระบบบำบัดน้ำเสียแบบบูรณาการร่วมกับการเพาะปลูกไฮโดรพอนิกส์ภายในมหาวิทยาลัยต่อไป

Valuating The Impact Of Unexploded Ordnance (Uxo) In Savannakhet, Laos Through Ecosystem Services Assessments, Nathan Lu

Pitzer Senior Theses

Unexploded ordnance (UXO) impact on countries is not well-documented, since post-war surveys or data collection are often hindered by a lack of appropriate funding and reparation. In Laos, UXO has hardly been cleared since 1964 and thus leaves room for spatially and temporally analyzing the severity of environmental and economic degradation in the area. This study uses the framework of ecosystem services, particularly carbon stock, as a way to provide quantitative metrics of impact to local governments and stakeholders. Through remote sensing data in Savannakhet Province, evidence-based land-use change data was spatially analyzed with geocoded UXO bomb mission locations and …

Urban Heterogeneity Drives Dissolved Organic Matter Sources, Transport, And Transformation From Local To Macro Scales, Rebecca L. Hale, Kristina G. Hopkins, Krista A. Capps, John S. Kominoski, Jennifer L. Morse, Allison H. Roy, Shuo Chen, Annika Quick, Andrew J. Blinn, Liz Ortiz Muñoz, Gwendolynn Folk

Environmental Science and Management Faculty Publications and Presentations

Urbanization reshapes dissolved organic matter (DOM) sources, transport, and transformations through changes in vegetation, hydrology, and management of waste and water. Yet the impacts of urbanization on DOM are variable within and among cities. Predicting heterogeneous responses to urbanization is challenged by diverse human activities and underlying biophysical variation along stream networks. Using data from the 486 largest urban areas in the continental United States and seven focal cities, we identified macro and local scale urban gradients in social, built, and biophysical factors that are expected to shape DOM. We used these gradients and the literature to develop hypotheses about …

Restoring Rattlesnake Creek: Using Citizen Science To Assess The Ecological And Morphological Impacts Of Dam Removal In Western Montana, Bethany Blakey

Undergraduate Theses, Professional Papers, and Capstone Artifacts

As dam removals increase in frequency across the U.S., most research has focused on the impact of larger dam removals, despite the removal of small dams being much more common. Given the hundreds of small dams in Montana, this research uses citizen science data collected over eight years spanning before and after a 2020 small dam removal in Rattlesnake Creek, Montana, to investigate impact on stream ecology and morphology. We analyzed pebble count grain size distributions and aquatic macroinvertebrate biotic indices from 2017 to 2024 to assess changes in sediment transport and macroinvertebrate population as well as evaluate the efficacy …

Evaluating The Long-Term Effectiveness Of Marsh Terracing For Conservation With Integrated Geospatial And Wetland Simulation Modeling, Nick Carpenter, Laura Costadone, Thomas R. Allen

ODU Articles

Coastal marshes provide essential ecosystem services, yet they are vulnerable to anthropogenic stressors and climate change, particularly sea level rise (SLR). Restoration approaches like marsh terracing have emerged as nature-based strategies to enhance resilience and reduce habitat loss. This study applies the Sea Level Affecting Marshes Model (SLAMM) to assess the potential of marsh terraces to mitigate future losses, while also examining the model’s limitations, including its assumptions and capacity to reflect complex marsh processes. A geospatial approach was used to generate 3D representations of terraces through morphostatic modeling within digital elevation models (DEMs). Under a no-restoration scenario, SLAMM projections …

Exploring Nitrate Reduction In A Saturated Riparian Buffer Through A Three-Dimensional Reactive Contaminant Transport Model In An Agricultural Area, Mcclean County Central Illinois, Franklin O. Ijigade

Theses and Dissertations

Saturated Riparian Buffers (SRBs) are engineered systems designed to remove nitrate and other pollutants from subsurface agricultural drainage water before it reaches a stream. This study utilizes a high-resolution coupled flow and reactive transport model to explore nitrate reduction and transformation in an SRB in glacial sediment. The influence of material heterogeneity on nitrate reduction and the effectiveness of the SRB was investigated. The study was conducted in an SRB located next to and receiving tile drainage water that ultimately drains into a 3^rd order stream (T3 stream) in central Illinois, USA. A three-dimensional steady groundwater flow model was …

Application Of Floating Wetlands To Improve Urban Stream Quality, Daniel Chukwunonso Chukwudi

Theses and Dissertations

Urban streams, impacted by urbanization, often exhibit degraded water quality due to elevated nutrient levels, a phenomenon known as urban stream syndrome. This study evaluates the effectiveness of a floating wetland (FW) system in reducing nitrate as nitrogen (NO₃-N) and phosphate (PO₄³⁻) concentrations in a side canal of the Chicago River’s North Branch, adjacent to Goose Island, Chicago, IL, from 2018 to 2023. Using a five-year dataset, including new sampling from May to December 2023, the research addresses two questions: (1) Do FWs lower NO₃-N and PO₄³⁻ concentrations in urban streams? and (2) Do FWs exhibit seasonal differences in nutrient …

Private Property Vs. Public Access: Socio-Engineering Framework For Managing Non-Meandering Waters In South Dakota’S Prairie Pothole Region, Lydia Loken, Sushant Mehan

The Journal of Undergraduate Research

This study addresses the growing importance of balancing private ownership and public interest of Non-Meandering Waters (NMWs) overlaying private property in the South Dakota Prairie Pothole Region (PPR) through both a legal and socio-engineering lens. This study aims to develop an integrated management framework for Non-Meandering Waters in the South Dakota Prairie Pothole Region that combines water allocation principles, the Public Trust Doctrine, and water quality objectives to guide policy decisions, ensuring equitable access, long-term sustainability, and a balanced approach to both public and private interests. Data collection from October 2024 through February 2025 and included a literature review of …

Predicting Evapotranspiration, Quick Flow, And Recharge In The Contiguous United States Through 2100, Paige Aldenberg

Open Access Master's Theses

Groundwater pumping has more than doubled since 1950 across the United States and now accounts for more than 50% of water use in much of the country. These high pumping rates have exceeded recharge in many aquifers, especially in the dry Western United States. As a result, water levels are declining, increasing water scarcity for humans, and causing various adverse ecosystem impacts. So, predictions of future groundwater recharge rates, especially in the face of changing climates, are necessary for informing future water management practices. While historical groundwater recharge rates have been estimated across broad geographic regions, high-resolution predictions of future …

Field Performance Evaluation Of Selectively Bred Eastern Oyster Lines In New Jersey And Rhode Island, Seraphina Satkowski

Open Access Master's Theses

Eastern oyster aquaculture has increased steadily over the last three decades, but the industry has yet to achieve its full potential. In the Northeast USA, production is limited in part by a lack of high performing stocks suited to the geographically broad and heterogenous growing environments. For this study, hatchery lines from Maine, New York, and New Jersey as well as crosses between each hatchery line and the selectively bred Northeast high survival (NEHÒ) line, were deployed at oyster farms in Rhode Island and New Jersey for performance evaluation. Replicate bags of each line were stocked and maintained according to …

Multi-Scale Analysis Of Karst Aquifer Vulnerability To Climate Change And Contamination Processes, Shishir Sarker

Theses and Dissertations--Earth and Environmental Sciences

Karst aquifers represent some of the world’s most productive yet vulnerable groundwater systems, supplying freshwater to approximately 10% of the global population across 15% of Earth’s ice-free land surface. Their distinctive hydrological characteristics— including rapid recharge, preferential flow paths, and limited natural filtration— create unique vulnerabilities to both climate variability and contamination that pose significant challenges for sustainable water resource management. This dissertation presents a comprehensive multi-scale analysis of karst aquifer vulnerability through three interconnected studies that examine climate change impacts, microbial contamination dynamics, and contaminant transport processes across diverse geographic and hydrogeologic settings.

Chapter two investigates climate change impacts …

The Lived Experience Of Fly Fishing And Its Significance For Cultivating A Communion Of Subjects, Eric Landon Mcduffie

Antioch University Dissertations & Theses

Inspired by the lived fly fishing experiences encountered with my grandfather and the spiritually ecological writings of Thomas Berry, I explored how the sacred art of fly fishing connects participants with the natural world from a universal perspective given to us by Thomas Berry in The New Story. Berry described three principles that make up the entire universe: Differentiation, Subjectivity and Communion. I wanted to understand how lived fly fishing experiences fit into Berry’s three universal principles and how an individual’s lived fly fishing experience(s) cultivate(s) a “Communion of subjects.”1 Answers to these two questions informed five initial approaches to …

Iere Annual Report 2025, Erin Largo-Wight, Heather Barnes Truelove, Kelly Rhoden, Nicole Lowe, Ruby Cox

Annual Reports

2025 Annual Report of the Institute for Environmental Research and Education

Geochemical Assessment Of Sediment Flux In A Sediment Core From A Tidal Flat In A Tropical Estuary, Olumide Ajulo

Master's Theses or Doctor of Nursing Practice

Sediment flux in estuaries is influenced by both natural processes and anthropogenic activities. Understanding the historical and current trends in sediment flux inputs and geochemical composition are essential for evaluating the estuary’s response to natural and human-induced changes and for developing effective environmental management strategies. The tropical Wouri Estuary in Cameroon receives water and sediment inputs from three main rivers draining urban, industrial, and agricultural areas, as well as different rock terrains. The complex inputs into the estuary can significantly affect sediment flux, consequently impacting the ecosystem. Thereby making an understanding of the temporal variations in sediment inputs in the …