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Articles 1021 - 1050 of 8582
Full-Text Articles in Natural Resources Management and Policy
Net Zero Roadmap For Copper And Nickel, Columbia Center On Sustainable Investment, Carbon Trust, Rmi, Payne Institute For Public Policy
Net Zero Roadmap For Copper And Nickel, Columbia Center On Sustainable Investment, Carbon Trust, Rmi, Payne Institute For Public Policy
Columbia Center on Sustainable Investment
As we seek to meet the challenges of climate change impacts, many commodities will play an increasing role in decarbonizing economies. There are increasing challenges of addressing the emissions from extraction of these commodities needed to support the zero-carbon transition.
CCSI, in a consortium with Carbon Trust, RMI, and the Payne Institute for Public Policy at the Colorado School of Mines, developed the Net Zero Roadmap to 2050 for Copper and Nickel Value Chains to support the copper and nickel mining sectors in taking collective, coordinated action by providing a clear, approachable, and accepted roadmap for decarbonization.
Our key messages …
Climate Change And The Law Of National Security Adaptation, Mark P. Nevitt
Climate Change And The Law Of National Security Adaptation, Mark P. Nevitt
Faculty Articles
The Department of Defense (DoD) is the largest employer in the world, owns and operates an enormous global real estate portfolio, and emits more Greenhouse Gases (GHGs) than many nations. Entrusted with the national security, the DoD is now threatened by a new enemy—climate change. Climate change imperils national security infrastructure while undermining the military’s capacity to respond to climate-driven disasters at home and abroad. However, legal scholarship has yet to address what I call “the law of national security adaptation” and related questions. For example, how do environmental and climate change laws apply to the U.S. military? What laws …
Climate Change And The Specter Of Statelessness, Mark P. Nevitt
Climate Change And The Specter Of Statelessness, Mark P. Nevitt
Faculty Articles
What happens when climate change extinguishes entire nations? Neither international nor environmental law has provided a satisfactory answer to this weighty question. Climate change-induced flooding, storm surge, and sea level rise threaten the territorial integrity and habitability of several small island developing states, raising the specter of statelessness. We know that climate catastrophe is coming, but we have failed to take the necessary steps to safeguard several developing nations. This Article argues that innovative legal and policy solutions are needed today to prevent nation extinction tomorrow. I focus on two potential international governance solutions: the U.N. Framework Convention on Climate …
Baseline Data For Assessing Beaver Dam Analogs As A Restoration Tool In Fire-Affected Tributaries Of The Methow And Okanogan Watersheds, Katelin Killoy
Baseline Data For Assessing Beaver Dam Analogs As A Restoration Tool In Fire-Affected Tributaries Of The Methow And Okanogan Watersheds, Katelin Killoy
EWU Masters Thesis Collection
Incised streams are disconnected from their floodplains and no longer store water effectively. This leads to diminished ecosystem function, loss of critical riparian and aquatic habitats, and reduced biodiversity. Beaver dams improve incised streams by raising surface and groundwater levels, leading to reconnected floodplains. When beaver establishment is not feasible, Beaver Dam Analogs (BDAs) may be used to mitigate damage from stream incision and facilitate beaver establishment. However, it is unclear how effective BDAs are at mimicking natural beaver dams, especially on streams affected by high-intensity wildfires. The objective of my research is to collect baseline data needed to assess …
Field Tests Of A Uav-Compatible Spectrometer To Evaluate Its Suitability For Detailed Soil Radon Potential Mapping, Alexandria Briahnne Thomas
Field Tests Of A Uav-Compatible Spectrometer To Evaluate Its Suitability For Detailed Soil Radon Potential Mapping, Alexandria Briahnne Thomas
Theses and Dissertations--Earth and Environmental Sciences
As part of ongoing research on radionuclide mapping and radon hazard characterization, field tests were performed to evaluate the suitability and limitations of a UAV-compatible gamma spectrometer. To date, this data set includes completed stationary data collection, mobile ground collection, multi-level UAV flights over a known material transition, as well as redundant ground and multi-level UAV data collection over a relatively uniform area. Total counts were used as a measure of soil radionuclide levels for our data collected above background. Although our test sites were in regions underlain by bedrock with high indoor radon levels, uranium counts were barely above …
Economics Of Maple Syrup Production In Kentucky, Bobby Thapa
Economics Of Maple Syrup Production In Kentucky, Bobby Thapa
Theses and Dissertations--Forestry and Natural Resources
Maple syrup production is traditionally associated with New England regions in the United States, but there is growing interest in expanding it to other regions with suitable environmental conditions, including Kentucky. This study presents an in-depth analysis of the potential production and economic impacts of maple syrup in Kentucky using a multi-method approach. First, the study applies a stochastic production model to assess the effects of climatic and tree variables on maple syrup yield. The results reveal that several variables, including the number of maple trees, taps, temperatures, tapping season length, and time, significantly affect maple syrup yield. Second, input-output …
Futures On Dry Ground: Anthropology And Coastal Planning, Theodore Hilton, Sheehan Moore
Futures On Dry Ground: Anthropology And Coastal Planning, Theodore Hilton, Sheehan Moore
Publications and Research
Around the world, governments, industry, and other actors are creating plans to save coasts from environmental crisis. Louisiana is one prominent example: levees and other measures protect oil and gas infrastructure from inundation as the wetlands buffer rapidly erodes—in large part due to that same industry. The state’s primary answer to land loss is a $50 billion Coastal Master Plan. To illuminate such responses in Louisiana and globally, this article reviews emerging literature and frames an anthropology of coastal planning around three themes: (1) novel orientations toward time and space, (2) the reproduction of power and capital in the name …
Quantifying The Carbon Stored And Sequestered By The Trees On Pomona College’S Campus, Paola A. Giron-Carson
Quantifying The Carbon Stored And Sequestered By The Trees On Pomona College’S Campus, Paola A. Giron-Carson
Scripps Senior Theses
We are experiencing a climate crisis that must be confronted with strategic mitigation. Pomona College contributes to the climate crisis through its emissions for which there is a baseline record. However there is no baseline record of the climate mitigation currently performed by the trees on Pomona’s campus through carbon storage. This study seeks to determine a current baseline quantity of carbon stored and sequestrated by Pomona’s trees as well as possible courses of climate mitigation for Pomona College to take. Initial information gathering was conducted through interviews with several stakeholders. This study was conducted using data collected prior to …
Windblown Snow Bedforms And Their Effects On Snow Water Content Wenatchee Range, Washington, Ryan Hampton
Windblown Snow Bedforms And Their Effects On Snow Water Content Wenatchee Range, Washington, Ryan Hampton
All Master's Theses
ABSTRACT
WINDBLOWN SNOW BEDFORMS AND THEIR
EFFECTS ON SNOW WATER CONTENT
WENATCHEE RANGE, WASHINGTON
by
Ryan C. Hampton
June 2023
Windblown snow bedforms (WBSBF) are formations of distinct sizes, shapes, and patterns, resulting from the interaction of wind and snow particles. Due to the extreme nature of the formation of WBSBF, which occur in remote high elevation mountain environments during severe weather events, it makes it difficult to not only study these dramatic formations in real time but also predict their occurrence with any regularity. The purpose of this research was to 1) establish a method to actively monitor WBSBF …
River Report. State Of Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, Contaminants, 2023, Environmental Protection Board, Jacksonville Florida, University Of North Florida, Jacksonville University, Gerry Pinto, Brian P. Zoellner, Christopher Baynard, Gretchen Bielmyer-Fraser, Dale Casamatta, Charles Closmann, Nisse Goldberg, Ashley Johnson, Scott Jones, William Penwell, Radha Pyati, Adam Rosenblatt
River Report. State Of Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, Contaminants, 2023, Environmental Protection Board, Jacksonville Florida, University Of North Florida, Jacksonville University, Gerry Pinto, Brian P. Zoellner, Christopher Baynard, Gretchen Bielmyer-Fraser, Dale Casamatta, Charles Closmann, Nisse Goldberg, Ashley Johnson, Scott Jones, William Penwell, Radha Pyati, Adam Rosenblatt
State of the River Report
No abstract provided.
Unequal Trust: Bottled Water Consumption, Distrust In Tap Water, And Economic And Racial Inequality In The United States, Daniel Jaffee
Unequal Trust: Bottled Water Consumption, Distrust In Tap Water, And Economic And Racial Inequality In The United States, Daniel Jaffee
Sociology Faculty Publications and Presentations
Reviewing public health, nutrition, and social science literature, this article examines how bottled water consumption and spending in the United States differ along lines of race, ethnicity, and income, how these consumption patterns have changed in recent years, and how those shifts map onto perceptions of the safety and trustworthiness of tap water supplies, both before and since the Flint water disaster. It also addresses the differential impact of bottled water spending on household income. The findings challenge the truism that bottled water consumption is positively correlated with income, instead showing a bimodal racial and class consumption pattern that reflects …
Botanical Updates From Psu, Gabriel Campbell
Botanical Updates From Psu, Gabriel Campbell
Rae Selling Berry Seed Bank and Plant Conservation Program
These slides summarize the botanical work conducted at PSU in 2022.
Spartina Species Invasive In Coastal Salt Marshes And Mudflats Of The Pacific Northwest, Gabriel E. Campbell, Ashley Newcomb, Jacob Rose
Spartina Species Invasive In Coastal Salt Marshes And Mudflats Of The Pacific Northwest, Gabriel E. Campbell, Ashley Newcomb, Jacob Rose
Center for Lakes and Reservoirs Publications and Presentations
Spartina (cordgrass) species are invasive plants that threaten the Pacific Northwest of the United States of America. This document contains a literature review, map of known occurrences, and identification guide of Spartina species invasive in coastal salt marshes and mudflats of the Pacific Northwest.
Aquatic Invasive Species Survey And Treatment On Lake Umatilla And Lake Celilo 2022-2023 Report, Gabriel E. Campbell, Jacob Rose
Aquatic Invasive Species Survey And Treatment On Lake Umatilla And Lake Celilo 2022-2023 Report, Gabriel E. Campbell, Jacob Rose
Center for Lakes and Reservoirs Publications and Presentations
Flowering Rush (Butomus umbellatus) is an invasive aquatic plant in the Pacific Northwest that threatens salmon habitat. The Center for Lakes and Reservoirs staff surveyed for this and other aquatic species from 2022 and 2023 in the Columbia River in Lake Umatilla and Lake Celilo. This document summarizes their survey efforts including their protocols, data, and small-scale removal efforts.
Labile Carbon And Soil Texture Control Nitrogen Transformation In Deep Vadose Zone, Lidong Li, Jordan Shields, Daniel D. Snow, Michael Kaiser, Arindam Malakar
Labile Carbon And Soil Texture Control Nitrogen Transformation In Deep Vadose Zone, Lidong Li, Jordan Shields, Daniel D. Snow, Michael Kaiser, Arindam Malakar
Daugherty Water for Food Global Institute: Faculty Publications
Understanding transient nitrogen (N) storage and transformation in the deep vadose zone is critical for controlling groundwater contamination by nitrate. The occurrence of organic and inorganic forms of carbon (C) and nitrogen and their importance in the deep vadose zone is not well characterized due to difficulty in sampling and the limited number of studies. We sampled and characterized these pools beneath 27 croplands with different vadose zone thicknesses (6–45 m). We measured nitrate and ammonium in different depths for the 27 sites to evaluate inorganic N storage. We measured total Kjeldahl nitrogen (TKN), hot-water extractable organic carbon (EOC), soil …
Factors Influencing Mortality Of Bighorn Sheep (Ovis Canadensis), Emily Moberg
Factors Influencing Mortality Of Bighorn Sheep (Ovis Canadensis), Emily Moberg
Electronic Theses and Dissertations
Reintroduced bighorn sheep (Ovis canadensis) in Nebraska faced a devastating pneumonia epizootic resulting in variable ewe reproductive success and poor lamb recruitment in many of the herds. From 2015-2017, no lamb recruitment was observed in the northern Pine Ridge subpopulation and as many as 60% of adults died. This was in stark contrast to the healthier Wildcat Hills herds to the south, where lamb recruitment was estimated to be between 50-70% during the same years. From 2018-2020, we radio-collared and recaptured 76 adult female bighorn sheep from 2 of 3 Pine Ridge herds and 1 of 2 Wildcat Hills herds. …
Food Waste Storage Gaseous Emissions Detection And Quantification Using Infrared Spectroscopy, Ryley A. Burton-Tauzer
Food Waste Storage Gaseous Emissions Detection And Quantification Using Infrared Spectroscopy, Ryley A. Burton-Tauzer
Cal Poly Humboldt theses and projects
A growing interest in sustainable waste management and the implementation of new policies have prompted a shift towards alternative resource recovery methods for organic waste, including food waste. To effectively assess alternative food waste treatment scenarios, it is important to evaluate the life cycle impacts associated with each scenario. The storage phase of food waste, encompassing its accumulation in kitchens, and storage in bins for collection and transportation, has been overlooked as a source of greenhouse gases in previous studies. This investigation aimed to identify the greenhouse gases emitted during the initial five-day period of low-oxygen storage. An open dynamic …
Land Systems, Soils And Vegetation Of The Southern Goldfields And Great Western Woodlands Of Western Australia - Volume 2, Peter-Jon A. Waddell, Paul Galloway
Land Systems, Soils And Vegetation Of The Southern Goldfields And Great Western Woodlands Of Western Australia - Volume 2, Peter-Jon A. Waddell, Paul Galloway
Technical Bulletins
This technical bulletin defines and maps the land resources of the southern Goldfields region of Western Australia (WA). The southern Goldfields region, as featured in this bulletin, covers 151,753 km2. The western and eastern borders are variable because they align with various cadastral boundaries. The western survey border, which in part follows the WA State Barrier Fence, demarcates cleared agricultural land from the intact, western extent of the Great Western Woodlands. The eastern border abuts the westernmost Nullarbor pastoral lease boundaries, except for the north-easternmost and south-easternmost edges which continue into Crown land. Major towns are Coolgardie, Kalgoorlie …
Space Use And Movements Of Southeastern Breeding Double-Crested Cormorants (Nannopterum Auritum) In The United States, Leah L.K. Moran, Brian S. Dorr, Katie C. Hanson-Dorr, R. J. Moore, Scott A. Rush
Space Use And Movements Of Southeastern Breeding Double-Crested Cormorants (Nannopterum Auritum) In The United States, Leah L.K. Moran, Brian S. Dorr, Katie C. Hanson-Dorr, R. J. Moore, Scott A. Rush
United States Department of Agriculture Wildlife Services: Staff Publications
Abstract: Seasonal movements of Double-crested Cormorants (Nannopterum auritum) have been studied at breeding and wintering sites in the southeastern United States, but little information exists on the movements of these birds within and from their southern breeding sites in lacustrine systems. Since 2001, cormorants have established nesting colonies on islands in Guntersville Reservoir in Alabama, USA. Following the movements of tagged cormorants using satellite telemetry, we found that the mean home range during the 2017 breeding season (May–August) was 41.76 km2, with a core use area of 6.36 km2. The mean home range used …
Variance In Offspring Sex Ratio And Maternal Allocation In A Highly Invasive Mammal, Sarah M. Chinn, Timothy J. Smyser, James C. Beasley
Variance In Offspring Sex Ratio And Maternal Allocation In A Highly Invasive Mammal, Sarah M. Chinn, Timothy J. Smyser, James C. Beasley
United States Department of Agriculture Wildlife Services: Staff Publications
Skewed sex ratios at birth are widely reported in wild populations, however, the extent to which parents are able to modulate the sex ratio of offspring to maximize their own fitness remains unclear. This is particularly true for highly polytocous species as maximizing fitness may include trade-offs between sex ratio and the size and number of offspring in litters. In such cases, it may be adaptive for mothers to adjust both the number of offspring per litter and offspring sex to maximize individual fitness. Investigating maternal sex allocation in wild pigs (Sus scrofa) under stochastic environmental conditions, we predicted that …
Invasive Frogs Show Persistent Physiological Differences To Elevation And Acclimate To Colder Temperatures, Jack R. Marchetti, Karen H. Beard, Emily E. Virgin, Erin L. Lewis, Steven C. Hess, Kwanho C. Ki, Layne O. Sermersheim, Adriana P. Furtado, Susannah S. French
Invasive Frogs Show Persistent Physiological Differences To Elevation And Acclimate To Colder Temperatures, Jack R. Marchetti, Karen H. Beard, Emily E. Virgin, Erin L. Lewis, Steven C. Hess, Kwanho C. Ki, Layne O. Sermersheim, Adriana P. Furtado, Susannah S. French
United States Department of Agriculture Wildlife Services: Staff Publications
The coqui frog (Eleutherodactylus coqui) was introduced to the island of Hawai’i in the 1980s and has spread across much of the island. Concern remains that this frog will continue to expand its range and invade higher elevation habitats where much of the island’s endemic species are found. We determined whether coqui thermal tolerance and physiology change along Hawai’i’s elevational gradients. We measured physiological responses using a short-term experiment to determine baseline tolerance and physiology by elevation, and a long-term experiment to determine the coqui’s ability to acclimate to different temperatures. We collected frogs from low, medium, and …
Fusion Of Visible And Thermal Images Improves Automated Detection And Classification Of Animals For Drone Surveys, B. Santhana Krishnan, Landon R. Jones, Jared A. Elmore, Sathishkumar Samiappan, Kristine O. Evans, Morgan Pfeiffer, Bradley Blackwell, Raymond Iglay
Fusion Of Visible And Thermal Images Improves Automated Detection And Classification Of Animals For Drone Surveys, B. Santhana Krishnan, Landon R. Jones, Jared A. Elmore, Sathishkumar Samiappan, Kristine O. Evans, Morgan Pfeiffer, Bradley Blackwell, Raymond Iglay
United States Department of Agriculture Wildlife Services: Staff Publications
Visible and thermal images acquired from drones (unoccupied aircraft systems) have substantially improved animal monitoring. Combining complementary information from both image types provides a powerful approach for automating detection and classification of multiple animal species to augment drone surveys. We compared eight image fusion methods using thermal and visible drone images combined with two supervised deep learning models, to evaluate the detection and classification of white-tailed deer (Odocoileus virginianus), domestic cow (Bos taurus), and domestic horse (Equus caballus). We classified visible and thermal images separately and compared them with the results of image fusion. …
Spatial Ecology Of Translocated Raccoons, Jacob E. Hill, James L. Helton, Richard B. Chipman, Amy Gilbert, James C. Beasley, Guha Dharmarajan, Olin E. Rhodes
Spatial Ecology Of Translocated Raccoons, Jacob E. Hill, James L. Helton, Richard B. Chipman, Amy Gilbert, James C. Beasley, Guha Dharmarajan, Olin E. Rhodes
United States Department of Agriculture Wildlife Services: Staff Publications
Raccoons (Procyon lotor) are routinely translocated both legally and illegally to mitigate conflicts with humans, which has contributed to the spread of rabies virus across eastern North America. The movement behavior of translocated raccoons has important ramifications for disease transmission yet remains understudied and poorly quantified. To examine the spatial ecology of raccoons following experimental translocation, we performed reciprocal 16 km-distance translocations of 30 raccoons between habitats of high and low raccoon density (bottomland hardwood and upland pine, respectively) across the Savannah River Site (SRS) in Aiken, South Carolina, USA (2018–2019). Translocation influenced patterns of raccoon space use, …
Evaluation Of Oral Baits And Distribution Methods For Tasmanian Devils (Sarcophilus Harrisii), Sean Dempsey, Ruth J. Pyer, Amy Gilbert, Nicholas M. Fountain-Jones, Jennifer M. Moffat, Sarah Benson-Amram, Timothy J. Smyser, Andrew S. Flies
Evaluation Of Oral Baits And Distribution Methods For Tasmanian Devils (Sarcophilus Harrisii), Sean Dempsey, Ruth J. Pyer, Amy Gilbert, Nicholas M. Fountain-Jones, Jennifer M. Moffat, Sarah Benson-Amram, Timothy J. Smyser, Andrew S. Flies
United States Department of Agriculture Wildlife Services: Staff Publications
Context
Diseases are increasingly contributing to wildlife population declines. Tasmanian devil (Sarcophilus harrisii) populations have locally declined by 82%, largely owing to the morbidity and mortality associated with two independent transmissible devil facial tumours (DFT1 and DFT2). Toxic baits are often used as a management tool for controlling vertebrate pest populations in Australia, but in other areas of the world, oral baits are also used to deliver vaccines or pharmaceuticals to wildlife.
Aim
Our goal was to evaluate the potential use of edible baits as vehicles for vaccine delivery to Tasmanian devils.
Method
We first tested bait palatability with …
Comparison Of Daily Activity Patterns Across Seasons Using Gps Telemetry And Camera Trap Data For A Widespread Mammal, David W. Wolfson, Peter E. Schlichting, Raoul K. Boughton, Ryan S. Miller, Kurt C. Vercauteren, Jesse S. Lewis
Comparison Of Daily Activity Patterns Across Seasons Using Gps Telemetry And Camera Trap Data For A Widespread Mammal, David W. Wolfson, Peter E. Schlichting, Raoul K. Boughton, Ryan S. Miller, Kurt C. Vercauteren, Jesse S. Lewis
United States Department of Agriculture Wildlife Services: Staff Publications
Daily activity patterns of animals can be dynamic across seasons in response to changing environmental conditions. Daily activity, though, has rarely been evaluated in relation to multiple factors (for example, seasons, demographics, and data collection methods), which could be important for understanding what drives activity patterns. Here, we evaluated the daily activity patterns of a widespread invasive species, wild pigs (Sus scrofa), across two ecologically different study areas at Buck Island Ranch, Florida, and Tejon Ranch, California (United States), from 2015 to 2018. Using GPS telemetry data (62 individuals in Florida, 21 individuals in California) and detections from …
Are Rabid Raccoons (Procyon Lotor) Ready For The Rapture? Determining The Geographic Origin Of Rabies Virus-Infected Raccoons Using Radcapture And Microhaplotypes, Matthew W. Hopken, Antoinette J. Piaggio, Zaid Abdo, Richard B. Chipman, Clara P. Mankowski, Kathleen M. Nelson, Mikaela Samsel Hilton, Christine Thurber, Mirian T. N. Tsuchiya, Jesús E. Maldonado, Amy T. Gilbert
Are Rabid Raccoons (Procyon Lotor) Ready For The Rapture? Determining The Geographic Origin Of Rabies Virus-Infected Raccoons Using Radcapture And Microhaplotypes, Matthew W. Hopken, Antoinette J. Piaggio, Zaid Abdo, Richard B. Chipman, Clara P. Mankowski, Kathleen M. Nelson, Mikaela Samsel Hilton, Christine Thurber, Mirian T. N. Tsuchiya, Jesús E. Maldonado, Amy T. Gilbert
United States Department of Agriculture Wildlife Services: Staff Publications
North America is recognized for the exceptional richness of rabies virus (RV) wildlife reservoir species. Management of RV is accomplished through vaccination targeting mesocarnivore reservoir populations, such as the raccoon (Procyon lotor) in eastern North America. Raccoons are a common generalist species, and populations may reach high densities in developed areas, which can result in contact with humans and pets with potential exposures to the raccoon variant of RV throughout the eastern United States. Understanding the spatial movement of RV by raccoon populations is important for monitoring and refining strategies supporting the landscape-level control and local elimination of …
The Path To U.S. National Registration Of A Toxic Bait For The Control Of The Small Indian Mongoose, Carmen C. Antaky, Steven C. Hess, Emily W. Ruell, Israel L. Leinbach, Shane R. Siers, Robert T. Sugihara
The Path To U.S. National Registration Of A Toxic Bait For The Control Of The Small Indian Mongoose, Carmen C. Antaky, Steven C. Hess, Emily W. Ruell, Israel L. Leinbach, Shane R. Siers, Robert T. Sugihara
Human–Wildlife Interactions
The small Indian mongoose (Urva auropunctata [syn. Herpestes auropunctatus]; mongoose) is a highly invasive species in its introduced range that negatively impacts ecosystems. Mongooses depredate native species, serve as a vector of disease posing a risk to human health, and cause sanitation issues in food processing facilities and public areas. Introduced for biocontrol in the late 1800s in Hawaiʻi and the Caribbean, mongooses currently have well-established populations across multiple islands in both island archipelagos and have invaded numerous other locations throughout the world. The concern of accidental introduction to mongoose-free islands, the difficulty in species detection, and the …
Establishing A Volunteer Group To Assist In The Eradication Of Invasive Brown Treesnakes From Islan Dåno' (Cocos Island), Guam, Martin Kastner, Olympia Terral
Establishing A Volunteer Group To Assist In The Eradication Of Invasive Brown Treesnakes From Islan Dåno' (Cocos Island), Guam, Martin Kastner, Olympia Terral
Human–Wildlife Interactions
Islan Dåno’ (Cocos Island) is an islet of high conservation value located 2.5 km off Guam, USA, in the Western Pacific. It has long been considered free from invasive brown treesnakes (Boiga irregularis; BTS). A recently confirmed breeding population of BTS puts its wildlife populations, including U.S. Endangered Species Act-listed lizard and bird species, at risk. In response, we established Guam’s first volunteer group dedicated to BTS eradication, which we named Friends of Islan Dåno’. We provided training to local volunteer snake searchers and organized regular night searches for BTS on Islan Dåno’. We completed 25 searches between …
Cloud Seeding, Wildfire Smoke Emissions, And Solar Geoengineering: Why Is Climate Modification Unregulated?, Karen Bradshaw, Monika U. Ehrman
Cloud Seeding, Wildfire Smoke Emissions, And Solar Geoengineering: Why Is Climate Modification Unregulated?, Karen Bradshaw, Monika U. Ehrman
Faculty Journal Articles and Book Chapters
This Article is the first to identify that companies and agencies systemically modify climatic airspaces through wildfire smoke emissions, weather modification (cloud seeding to cause rain), and solar geoengineering. Climate modification is not a conspiracy theory or a hypothetical: it is happening, and it is changing weather patterns. Yet, climate modification is almost wholly unregulated. Further, it is also not recorded or tracked in systemic ways. That is to say, even government agencies do not have comprehensive records of whether; how often; or how much climate modification is occurring. The data is simply not gathered, aggregated, or stored. As a …
Exploring Beaver-Facilitated Restoration In Grassland Channelized Streams, Jessica L. Sikora
Exploring Beaver-Facilitated Restoration In Grassland Channelized Streams, Jessica L. Sikora
Graduate Research Theses & Dissertations
Freshwater streams provide vital ecosystem services, but their ecological function is gravely impacted by agricultural practices especially in grassland ecosystems. Though there is evidence that the re-introduction of beavers can help restore the ecological function of streams, little is known about their restorative impacts in grasslands. At Nachusa Grasslands Preserve in Franklin Grove, IL, we investigated the presence and impact of beaver dams on their waterways. With increasing beaver dam volume, we found an increase in sediment retention and less sediment retention with increasing beaver dams upstream from a dam. Though we did not find evidence that beaver dam volume …