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Articles 991 - 1020 of 52361
Full-Text Articles in Physical Sciences and Mathematics
199946, David W. Kerstetter
199946, David W. Kerstetter
PERC Albacore sPAT Data
Datasets (and supporting material) from 4sPAT electronic tags deployed on albacore caught by pelagic longline gear in the western North Atlantic.
Identifying Nutrient Dynamics And Relative Groundwater Contribution In Wetlands At Fish Lake Environmental Center, Lapeer Mi, Rose Allen
Senior Honors Theses and Projects
Wetlands are complex ecosystems that are dependent on hydrologic processes and water chemistry. Understanding the role that water chemistry and nutrients play in wetland ecosystems is crucial to wetland management and restoration. The Fish Lake Environmental Education Center near Lapeer Michigan, is glacially influenced, and contains a large bog. Between the bog and lake there are multiple kettles that contain ephemeral wetlands in the spring. Bogs are primarily precipitation sourced, whereas the kettle wetlands may be a combination of precipitation and groundwater sourced. Previous studies indicated that groundwater flow direction is towards Fish Lake, but it was unclear to what …
Life Cycle Progression Of Chlainomonas Sp.: A Field Study, Honu Pata, Robin Kodner, Ag Camara, Clare Hanneman, Maya Matsumoto, Dan Van Hees
Life Cycle Progression Of Chlainomonas Sp.: A Field Study, Honu Pata, Robin Kodner, Ag Camara, Clare Hanneman, Maya Matsumoto, Dan Van Hees
WWU Honors College Senior Projects
Every year, there are blooms of algae in snowy alpine environments during the summer snow melts. One environment in particular, the snow-on-lake habitat on Bagley Lake in Mt Baker, has been the subject of study by the Kodner lab for many years. In this habitat, we find the genus Chlainomonas which has bloomed in late spring and early summer annually. Our lab has proposed a life cycle for the genus (Matsumoto et al 2024), and there are many morphologically distinct cell stages found in field collected samples. This study has expanded our understanding the life cycle dynamics by examining the …
Project Final Report Watershed Plan For Crafts Colly, Sand Lick, And Dry Fork, Kentucky Water Resources Research Institute
Project Final Report Watershed Plan For Crafts Colly, Sand Lick, And Dry Fork, Kentucky Water Resources Research Institute
KWRRI Research Reports
The North Fork: Whitesburg Tributaries Watershed Plan, developed under this project, provides a path to improve waterbodies impacted by poor wastewater treatment, coal mining, and encroachments on floodplain by housing and roadways. Crafts Colly, Sand Lick, and Dry Fork are tributaries to the North Fork of the Kentucky River. They are located just north of the City of Whitesburg, in Letcher County, which is in the coalfields of southeastern Kentucky. The three watersheds encompass 18 square miles of primarily forested lands and about 30 miles of streams, most of which are entrenched. Because of the steep mountain terrain, most of …
Project Final Report Watershed Center Of Excellence, Kentucky Water Resources Research Institute
Project Final Report Watershed Center Of Excellence, Kentucky Water Resources Research Institute
KWRRI Research Reports
With the goal of providing a structured foundational background for watershed management to Kentucky’s watershed coordinators and other water quality professionals, the Kentucky Water Resources Research Institute developed the Kentucky Watershed Academy, a six-module series of core training content. The modules address the following subject areas:
• Module 1: The Clean Water Act & Related Water Quality Laws
• Module 2: Water Quality Basics
• Module 3: Dealing with Data
• Module 4: Land Use Impacts & Related Best Management Practices
• Module 5: Likely Partners
• Module 6: Effective Communications
As a result of this project, a total of …
Iowa Waste Reduction Center Newsletter, January 2024, University Of Northern Iowa. Iowa Waste Reduction Center.
Iowa Waste Reduction Center Newsletter, January 2024, University Of Northern Iowa. Iowa Waste Reduction Center.
Iowa Waste Reduction Center Newsletter
In this issue:
--- MSEI Season is Underway for Western Iowa
--- January 31, 2024 Reporting Deadlines: Grain Facility PM10 PTE
--- January 31, 2024 Reporting Deadlines: 6X Certification and Compliance Report
--- First Cidery Certified Gold by the IGBC
--- IWRC's Jennifer Trent Named President of USCC
--- UNI's Economics of Sustainability Class Teams Up with STAR4D for Impact
--- Industry News
Does Innovation Facilitate Meeting The Co2 Emission Reduction Targets Of China: A Non-Linear Approach, Yifan Wang, Nadia Doytch, Mohammed Elheddad, Wei Li, Mengna Chi
Does Innovation Facilitate Meeting The Co2 Emission Reduction Targets Of China: A Non-Linear Approach, Yifan Wang, Nadia Doytch, Mohammed Elheddad, Wei Li, Mengna Chi
Ateneo School of Government Publications
China has been implementing energy efficiency and CO2 emission reduction schemes at the provincial level that have been embedded in the National Five Year Plans of the country. We set out to investigate the relationship between R&D expenditures and CO2 emissions in China at the province level in the context of the planned emissions reduction targets. We explore the possibility of the existence of a non-linear relationship between R&D expenditures and CO2 emissions with a non-parametric methodology, a fixed effect panel data quantile (FEQR) regression estimator applied to a panel of 30 provinces. We stratify the sample according to the …
Utilizing Suas-Based Remote Sensing For Sustainable Outdoor Recreational Trail Design And Monitoring, Isaac C. Kinder
Utilizing Suas-Based Remote Sensing For Sustainable Outdoor Recreational Trail Design And Monitoring, Isaac C. Kinder
Graduate Theses, Dissertations, and Problem Reports
This study utilizes sUAS-based remote sensing and hydrologic models to analyze and predict locations susceptible to water-based trail erosion. Erosion is frequently cited as the most significant environmental impact of trails and often requires costly design and management considerations. A professionally designed trail totaling 4 km in length was segmented based on presence or absence of water-based erosion for analyses and then flown with sUAS technology. Three Logistic regression (LR) models were generated utilizing several hydrologic terrain models of varying resolutions to determine the effects of spatial resolution on the models’ predictive accuracies. Receiver operator characteristics, kappa, and overall accuracy …
Lead Bioaccessibility And Commonly Measured Soil Characteristics (Detroit, Mi, Usa) – Phase 1, Sabrina R. Good, Allison R. Harris, Patrick Crouch, Conor T. Gowan, William D. Shuster, Shawn P. Mcelmurry
Lead Bioaccessibility And Commonly Measured Soil Characteristics (Detroit, Mi, Usa) – Phase 1, Sabrina R. Good, Allison R. Harris, Patrick Crouch, Conor T. Gowan, William D. Shuster, Shawn P. Mcelmurry
Open Data at Wayne State
Contaminated urban soil is one of the major contributors to child Pb exposure. To gain a better understanding of Pb risk in urban areas, composite samples were collected from 142 residential, privately owned, parcels in Detroit, Hamtramck, and Highland Park, Michigan, with approval from the property owners. The proximity of soil sampling and former smelter locations were also reported. Sample were collected from areas covered with turf grass. Four samples were collected, one from each cardinal direction (north, south, east, and west), 20 cm from an aluminum tent stake driven into the center of the sampling site. Soils were collected …
Environmental Impact Assessment Of The Horseshoe Bend Trail Reconstruction, Ian Caldwell, Kathleen Castleberry, Julia Grams, Sascha Knight, Emily Panteleeff
Environmental Impact Assessment Of The Horseshoe Bend Trail Reconstruction, Ian Caldwell, Kathleen Castleberry, Julia Grams, Sascha Knight, Emily Panteleeff
College of the Environment Graduate and Undergraduate Publications
This is an Environmental Impact Assessment (EIA) on the proposed action of constructing a new section of the Horseshoe Bend Trail along the State Route 542 corridor to Mt. Baker in Whatcom County, Washington. The construction of a new section of trail will renew access to the popular trail, which was washed out in 2021. Impacts to elements of the natural and built environment are examined, with emphasis on riparian and water quality impacts. The proposed action, alternative action, and no action are all considered, along with positives, negatives, and no impacts of each.
Assisted Regeneration Of Threatened Whitebark Pine After Wildfires In North Cascades National Park, Dylan Braund, Clara Magsarili, Ben Molenhouse, Bridget Miller, Zalan Szanyi
Assisted Regeneration Of Threatened Whitebark Pine After Wildfires In North Cascades National Park, Dylan Braund, Clara Magsarili, Ben Molenhouse, Bridget Miller, Zalan Szanyi
College of the Environment Graduate and Undergraduate Publications
This assessment evaluates the environmental effects of seeding whitebark pine seed caches in two burn sites located within the North Cascades National Park Service Complex (NOCA) in Washington State. The goal of these efforts would be to reestablish stands of whitebark pines lost to wildfire.
Environmental Impact Assessment Of Mcglinn-Goat Island Jetty, Sydney Freeman, Sarah Granard, Joey Lane, Ava O’Neill, Malia Thatcher
Environmental Impact Assessment Of Mcglinn-Goat Island Jetty, Sydney Freeman, Sarah Granard, Joey Lane, Ava O’Neill, Malia Thatcher
College of the Environment Graduate and Undergraduate Publications
This environmental impact assessment examines the potential effects of two major fish restoration actions regarding the McGlinn-Goat Island Jetty and the no-action alternative. The goals of these actions are to improve fish passage to/from the N. Fork Skagit River and the Swinomish Channel, important migratory habitat for many salmonid species. This report also investigates potential sedimentation issues arising from alterations to the jetty infrastructure and the potentially deleterious effect of such alterations on maintenance of the Swinomish Channel as a navigable marine passage. This report focuses on analyzing the effects on earth, plants and animals, water, and Transportation. This assessment …
Environmental Impact Assessment Of The Abc Recycling Metal Shredder, Amanda Hogue, Ellysen Mcfarland, Julian Medina-Schroeder, Nico Fotes, Anna Newberry
Environmental Impact Assessment Of The Abc Recycling Metal Shredder, Amanda Hogue, Ellysen Mcfarland, Julian Medina-Schroeder, Nico Fotes, Anna Newberry
College of the Environment Graduate and Undergraduate Publications
The purpose of this Environmental Impact Assessment (EIA) is to determine the likely effects of ABC Recycling’s proposed metal shredder facility on the natural and built environment. This assessment summarizes negative and positive effects associated with both the proposed and alternative actions. Where appropriate, this assessment provides additional mitigation measures that could be applied to either the proposed or alternative actions. The impacts of ABC Recycling’s proposed action to build a metal shredder facility were investigated with emphasis on the adverse effects on air and water quality, soil and geological conditions, plant and animal habitat, energy and natural resources, and …
Environmental Impact Assessment For Reforestation Of Douglas Fir After The 2023 Sourdough Mountain Fire, Samantha Burgh, Brandon Lankford, Spencer Natario, Mikaela Silva, Maggie Strecker
Environmental Impact Assessment For Reforestation Of Douglas Fir After The 2023 Sourdough Mountain Fire, Samantha Burgh, Brandon Lankford, Spencer Natario, Mikaela Silva, Maggie Strecker
College of the Environment Graduate and Undergraduate Publications
This Environmental Impact Assessment was conducted on account of the extensive damage to site conditions at Sourdough Mountain. The proposed areas of action would focus on National Park lands, within the parameters of Sourdough, that withstood severe, extensive degradation as a result of a wildfire outbreak in Summer of 2023. Deforestation throughout the Skagit basin, with particular focus surrounding Sourdough Mountain, was investigated in relation to critical assessments and analyses of natural and built environmental factors throughout the mountain.
Festival Of Research Abstracts, 2024, College Of Science And Mathematics, Wright State University
Festival Of Research Abstracts, 2024, College Of Science And Mathematics, Wright State University
Festival of Research
The collection of abstracts accepted for the 2024 Festival of Research hosted by the Wright State University College of Science and Mathematics.
Identifying Untapped Legal Capacity To Promote Multi‑Level And Cross‑Sectoral Coordination Of Natural Resource Governance, Nicola Harvey, Ahjond Garmestani, Craig R. Allen, Anoeska Buijze, Marleen Van Rijswick
Identifying Untapped Legal Capacity To Promote Multi‑Level And Cross‑Sectoral Coordination Of Natural Resource Governance, Nicola Harvey, Ahjond Garmestani, Craig R. Allen, Anoeska Buijze, Marleen Van Rijswick
School of Natural Resources: Faculty Publications
Natural resource governance in the face of climate change represents one of the seminal challenges of the Anthropocene. A number of innovative approaches have been developed in, among others, the fields of ecology, governance, and sustainability sciences for managing uncertainty and scarcity through a coordinated approach to natural resource governance. However, the absence of an enabling legal and regulatory framework has been identified in the literature as one of the primary barriers constraining the formal operationalization of these governance approaches. In this paper, we show how these approaches provide tools for analyzing procedural mandates across governmental levels and sectors in …
Fire Severity Mediates Marten And Fisher Occurrence: Impacts Of The Dixie Fire On A Carnivore Community, Christopher James Collier
Fire Severity Mediates Marten And Fisher Occurrence: Impacts Of The Dixie Fire On A Carnivore Community, Christopher James Collier
Cal Poly Humboldt theses and projects
The consumption of an astounding one million acres resulted from California’s largest single fire to date, the 2021 Dixie Fire. The social and economic losses associated with the fire were immediately apparent, but the effects on wildlife remained unknown. While previous research has suggested mixed or low severity fire may be beneficial to certain wildlife species, the responses to megafires are poorly understood for many carnivores. To better understand these responses to severe fire, I used a random sampling design stratified by burn severity to survey in and around the Dixie Fire footprint using baited camera stations. This allowed me …
Factors Associated With Acoustic Bat Presence During Spring Emergence In The Appalachian Mountains Of Western Virginia, Emily Kirk Pody
Factors Associated With Acoustic Bat Presence During Spring Emergence In The Appalachian Mountains Of Western Virginia, Emily Kirk Pody
Theses, Dissertations and Capstones
Studies of threats that bats face during hibernation have increased in response to white-nose syndrome (WNS), a fungal disease that has ravaged North American bat populations. However, impacts of WNS on bat ecology during spring emergence, when bats are potentially recovering from infection and allocating resources for reproduction, is relatively understudied. As more bat species become listed at the federal and state level, the need to understand the factors associated with spring emergence is critical for improving conservation guidelines and habitat management practices. Acoustic monitoring is an efficient method for monitoring bat presence for prolonged periods of time, giving biologists …
Catherine Nelson, Senior Art Exhibition Portfolio, Macrocosm, Catherine Nelson
Catherine Nelson, Senior Art Exhibition Portfolio, Macrocosm, Catherine Nelson
Senior Art Portfolios
This is artwork by Catherine Nelson, created for the Spring 2024 Senior Art Exhibition at St. Norbert College.
Sarah Pohjola, Senior Art Exhibition Portfolio, Earth's Destruction, Sarah Pohjola
Sarah Pohjola, Senior Art Exhibition Portfolio, Earth's Destruction, Sarah Pohjola
Senior Art Portfolios
This work was created for the Senior Art Exhibition Portfolio 2024. This work includes graphic design and illustration focused on environmental conservation.
Assessment Of Potential Impacts Of Climate Change On Hydrology And Water Resource Availability In The Passaic River Basin, New Jersey, Felix Oteng Mensah
Assessment Of Potential Impacts Of Climate Change On Hydrology And Water Resource Availability In The Passaic River Basin, New Jersey, Felix Oteng Mensah
Theses, Dissertations and Culminating Projects
Streamflow dynamics in a basin is known to be a major driver of available water resources. In the context of climate change, it is expected that global warming will accelerate the global hydrologic cycle, which will drive more intense floods and droughts leading to changes in streamflow and water resource availability. Most researchers agree that the amount and intensity of precipitation have a direct impact on runoff. Yet, there is no consensus as to how warming can affect streamflow. Evapotranspiration (ET) plays a crucial role here. However, there is a shortage of real-world observations on it. And yet, ET is …
Investigating The Relationship Between Inherited Geologic Framework And Saltwater Intrusion On St. Catherines Island, Georgia, Juliet Talaber, Jacque Kelly, Robert Vance
Investigating The Relationship Between Inherited Geologic Framework And Saltwater Intrusion On St. Catherines Island, Georgia, Juliet Talaber, Jacque Kelly, Robert Vance
Honors College Theses
Since the late 1800s, the oldest cities on the Georgia coast have been withdrawing water from the confined Floridan Aquifer System. As the population has grown, a cone of depression has formed extending from Savannah, GA to St. Catherines Island, GA, a barrier island 50 km southeast of Savannah. On St. Catherines Island, the cone of depression has reversed the lateral and horizontal groundwater flow gradients causing saltwater intrusion into the Upper Floridan Aquifer from the Lower Floridan Aquifer through joints, faults, or solution collapse features. Previous studies from the southern and central areas of the island have found evidence …
Herbicide Management Alters Fungal Biomass And Community Composition In Great Lakes Coastal Wetlands, Erica Danae Lathers
Herbicide Management Alters Fungal Biomass And Community Composition In Great Lakes Coastal Wetlands, Erica Danae Lathers
Master's Theses and Doctoral Dissertations
Wetlands provide many ecosystem services, and invasive species and their management can alter these services. Plant responses to wetland management actions are typically monitored, but less is known about how soils respond. Phragmites australis, an invasive wetland plant, can alter soil conditions, potentially impacting soil microbial structure and function. We sampled soil communities in Great Lakes coastal wetlands in southeastern Michigan dominated by Phragmites and sites that had been previously invaded by Phragmites then treated with herbicide from 2011-2017, to understand how herbicide management alters soil fungal communities. We assessed microbial and fungal biomass, fungal community composition, greenhouse gas emissions, …
Supporting Dataset For The Influence Of Tile-Water On Groundwater Nitrate Concentrations Within A Saturated Riparian Buffer Zone, Aminat Tosin Abdulsalam, Eric Wade Peterson
Supporting Dataset For The Influence Of Tile-Water On Groundwater Nitrate Concentrations Within A Saturated Riparian Buffer Zone, Aminat Tosin Abdulsalam, Eric Wade Peterson
Faculty Publications-- Geography, Geology, and the Environment
In the U.S. Midwest, where fertile soils with high water retention are prevalent, the installation of tile drainage networks have become a common practice to drain excess soil water, which enhances plant growth and increases crop productivity. However, tile drainage networks coupled with the use of inorganic fertilizers have significant implications on water quality, contributing to eutrophication, leading to harmful algal blooms, and resulting in hypoxic conditions in surface water bodies. To mitigate excess nutrient exports to surface water bodies, edge-of-field practices have been introduced. One such practice is the saturated riparian buffer (SRB), which utilizes a diversion system to …
Investigating Factors Contributing To Differences In Air Pollutants Between Metropolitan Areas In The Us, Ellen Hu
Scripps Senior Theses
Densely populated regions around the United States exhibit varying concentrations of air pollutants that can impact the health of urban populations and surrounding ecosystems. Understanding why these differences exist can be important in addressing health issues as the human population continues to increase and communities across the globe move to accommodate these trends. To investigate the impact of natural processes and anthropogenic sources on pollutant concentrations, EPA daily fine particulate matter (PM2.5), nitrogen dioxide (NO2), and ozone (O3) pollutant concentrations from seven metropolitan regions across the US for 2018-2022 were used. A Spearman Rank-Order …
A Road Map For Place Based Collaboration For Conflict Reduction, Joseph L. Zecher
A Road Map For Place Based Collaboration For Conflict Reduction, Joseph L. Zecher
Undergraduate Theses, Professional Papers, and Capstone Artifacts
No abstract provided.
Interannual Growth-Climate Relationships Of Western Larch After Wildfire In The Northwest, Junior Burks
Interannual Growth-Climate Relationships Of Western Larch After Wildfire In The Northwest, Junior Burks
Undergraduate Theses, Professional Papers, and Capstone Artifacts
Montane and mixed-conifer forests in the northwestern United States are burning at rates greater than any time in recent decades, due to the combined impacts of global warming and historical and contemporary land use and land management. Western larch (Larix occidentalis) is a tree of high regional significance, exhibiting a variety of traits that make it resistant and resilient to fire. Because seedlings are more sensitive to environmental stressors than adults, the impacts of climate change are expected to be detectable first in juvenile trees. Recent research shows that the natural regeneration of western larch after wildfires has …
Effects Of El Nino And Sunspot Cycles On Global And Reginal Climate, August Nathan Tolzman
Effects Of El Nino And Sunspot Cycles On Global And Reginal Climate, August Nathan Tolzman
Undergraduate Theses, Professional Papers, and Capstone Artifacts
Sunspots and El Nino affect the interannual variability of temperature on earth. Separately there is a positive relationship between higher sunspots and warmer temperatures or more intense El Nino and warmer temperatures globally and in Missoula. This is with the bias of climate change removed. Putting these two processes together it is expected that when intense El Ninos and high sunspots happen in the same year there will be warmer temperatures. This was not the case, there was no data to support that putting these to processes together makes them more or less intense.
Evaluating Land Cover Change And Opportunities For Bioenergy Crop Development On Surface Mine Sites In West Virginia, U.S.A., Kenzie D. Kohrs
Evaluating Land Cover Change And Opportunities For Bioenergy Crop Development On Surface Mine Sites In West Virginia, U.S.A., Kenzie D. Kohrs
Graduate Theses, Dissertations, and Problem Reports
Surface mining can impact land cover, forests, and water quality. Current reclamation strategies include revegetation with herbaceous species due to the ease and speed of cover establishment. Herbaceous and woody biomass crops have been used in various studies to reclaim surface mines and act as an alternative to nonrenewable energy sources. The objectives of this study were to quantify the state of vegetation growth on former surface mines in West Virginia over a 9-year period and identify suitable acreage for bioenergy production. During 2011 to 2020, we found that over 40,000 acres had been converted to forest and 40,000 acres …
Road Extraction On Remote Sensing Imagery: Historical Mapping Of The Brazilian Amazon, Jonas Paiva Botelho Jr
Road Extraction On Remote Sensing Imagery: Historical Mapping Of The Brazilian Amazon, Jonas Paiva Botelho Jr
MSU Graduate Theses
This work proposes an artificial intelligence model based on U-Net architecture to map road networks in the Brazilian Amazon. Over the years, the Amazon region has been heavily exploited, leading to increased deforestation rates, contributing to CO2 emissions, amplifying global warming, and causing a disturbance in local fauna and flora. The expansion into the forest by illegal miners, loggers, and land grabbers can be tracked down by the construction of roads, which we can refer to as the arteries of deforestation. Previous works on the matter proposed algorithms that use high-resolution imagery to map roads precisely. However, this work approach …