Planning Strategies And Barriers To Achieving Local Drought Preparedness,
2023
University of Nebraska - Lincoln
Planning Strategies And Barriers To Achieving Local Drought Preparedness, T. Haigh, E. Wickham, S. Hamlin, C. Knutson
School of Natural Resources: Faculty Publications
No abstract provided.
Droughtscape, Winter 2023,
2023
University of Nebraska-Lincoln
Droughtscape, Winter 2023, National Drought Mitigation Center
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
DroughtScape, Winter 2023
Orb-Web Spider Argiope (Araneidae) As Indigenous Arrow Poison Of G/Ui And G//Ana San Hunters In The Kalahari,
2023
Ditsong National Museum of Natural History, Pretoria, South Afr
Orb-Web Spider Argiope (Araneidae) As Indigenous Arrow Poison Of G/Ui And G//Ana San Hunters In The Kalahari, Tharina L. Bird, Smith Moeti, Robert K. Hitchcock, Melinda C. Kelly, Lefang L. Chobolo, Nonofo Gotcha, Kgosi K. Moatlhodi, Leungo D. Mukoka, Emmanuel K. Sekopo, Caroline Simmrita Chaboo
University of Nebraska State Museum: Staff and Affiliates, Publications
Hunting has been crucial in early human evolution. Some San (Bushmen) of southern Africa still practice their indigenous hunting. The use of poisons is one remarkable aspect of their bow-and-arrow hunting but the sources, taxonomic identifications of species used, and recipes, are not well documented. This study reports on fieldwork to investigate recent indigenous hunting practices of G/ui and G//ana San communities in the Central Kalahari Game Reserve (CKGR), Botswana. Here we discuss their use of spider poison. The hunters use the contents of the opisthosoma (‘abdomen’) of a spider as sole ingredient of the arrow poison and discard the …
Mapping Accuracy Of Close-Range Terrestrial Digital Photogrammetry,
2023
University of Nebraska - Lincoln
Mapping Accuracy Of Close-Range Terrestrial Digital Photogrammetry, Y. Zhou, C. B. Weerasekara, A, Y, Sheshukov
School of Natural Resources: Documents and Reviews
No abstract provided.
2023 Interior Least Tern And Piping Plover Annual Report For The Lower Platte River, Nebraska,
2023
University of Nebraska - Lincoln
2023 Interior Least Tern And Piping Plover Annual Report For The Lower Platte River, Nebraska, E. F. Forsberg, Mark P. Vrtiska, J. G. Jorgensen
School of Natural Resources: Faculty Publications
No abstract provided.
Evaluating Benthic Macroinvertebrate Populations In Response To Scouring Events In The Trinity River, Ca,
2023
Cal Poly Humboldt
Evaluating Benthic Macroinvertebrate Populations In Response To Scouring Events In The Trinity River, Ca, Liam Hay, Michael W. O'Neil, Chloe Pieper-Wasem
Environmental Science & Management Senior Capstones
River systems across California have been impacted by appurtenant structures such as dams and diversions. These structures have had an adverse impact on Benthic invertebrate (BMI) communities by regulating river systems and changing the natural hydraulic pulses that follow seasonal precipitation. Benthic invertebrates are a critical food resource for salmonids and serve as an indicator of ecosystem health. Our study was interested in seeing the effects of scouring events on BMI in the Trinity River of Trinity County, C.A. Following a large precipitation event that occurred in the region in December 2022, an influx of water entered the river through …
Investigation Of Small Mammal Species Richness, Abundance, And Genetic Population Structure On And Around The Eastern Washington University Prairie Restoration Site,
2023
Eastern Washington University
Investigation Of Small Mammal Species Richness, Abundance, And Genetic Population Structure On And Around The Eastern Washington University Prairie Restoration Site, Sarah Deshazer
EWU Masters Thesis Collection
Small mammals are an ecologically important component of every landscape on Earth. They are a food source for higher trophic level animals, disperse plant seed and mycorrhizal fungi spore, engineer the landscape through burrowing and foraging activities, and alter plant community composition through selective predation of seed and grain. Studies have shown that small mammals may help facilitate the transition between successive stages in prairie restoration. Eastern Washington University has dedicated 120 acres of campus land to restoration of native prairie habitat. Small mammals can play both a positive and a negative role in restoration, therefore it is important to …
Moving Beyond The Panarchy Heuristic,
2023
University of Nebraska-Lincoln
Moving Beyond The Panarchy Heuristic, David G. Angeler, Craig R. Allen
School of Natural Resources: Documents and Reviews
No abstract provided.
Evolution Of The Southwest Drought Learning Network: Collective Response To Exceptional Drought,
2023
University of Nebraska - Lincoln
Evolution Of The Southwest Drought Learning Network: Collective Response To Exceptional Drought, E. Elias, B. Fuchs, J. Lisonbee, T. Bernadt, V. Martinez, T. Haigh
School of Natural Resources: Documents and Reviews
No abstract provided.
The Market-Essential Role Of Corporate Climate Disclosure,
2023
Emory University School of Law
The Market-Essential Role Of Corporate Climate Disclosure, George S. Georgiev
Faculty Articles
This Article focuses on capital market efficiency as an often-downplayed legal rationale for mandating corporate climate disclosure, and explores it alongside the notion of investor demand, which has assumed a prominent and, increasingly, contested role in debates on climate disclosure. Because market efficiency (encompassing both securities price accuracy and overall capital market allocative efficiency) is generally unobservable, many commentators have instead emphasized the highly visible investor demand for climate-related disclosure as evidenced by shareholder proposals, voting behavior, stewardship policies, and public statements. Unfortunately, investor demand can be disputed, fairly or unfairly, because investor preferences are heterogeneous, dynamic, and difficult to …
From Bloom To Bouquet: Unearthing The Toxic Cut Flower Industry,
2023
Pitzer College
From Bloom To Bouquet: Unearthing The Toxic Cut Flower Industry, Addie Wasikonis
Pitzer Senior Theses
The commercial cut flower industry is an expansive network of growers, laborers, airlines, government workers, wholesalers, retailers, supermarkets, and florists, which deliver a crafted bouquet to the consumer for those special occasions. We often buy flowers during our weekly trip to the supermarket, call our local florist for an arrangement, or make a last-minute order online to be shipped within hours. For this demand to be supplied, the cut flower industry has spread to equator-localized countries where the labor is cheap, the land is plentiful, and the sun shines all year round in order to grow any type of flower …
Field Tests Of A Uav-Compatible Spectrometer To Evaluate Its Suitability For Detailed Soil Radon Potential Mapping,
2023
University of Kentucky
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 …
A Geospatial Analysis Of Crime Hotspots, Campus Safety Measures, And The Campus Community’S Perceived Safety At Murray State University,
2023
Murray State University
A Geospatial Analysis Of Crime Hotspots, Campus Safety Measures, And The Campus Community’S Perceived Safety At Murray State University, Rachel Stuckey
Murray State Theses and Dissertations
Murray State University (Murray State) is in far Western Kentucky. Murray State prides itself on being a safe campus for prospective students. In this study spatial analysis was used to analyze the relationship among crime hotspots, campus safety measures, and students’ perception of safety on campus the campus of Murray State. A survey was distributed to students to determine the areas of the campus where students feel safe and unsafe. Geographical Information Systems (GIS) were used to determine the location of crime hotspots over eight years (2014-2022) to measure the spatial relationship between logged crime hotspots and perceived safe and …
Textural And Mineral Analysis Of Pegmatites From The Pala And Mesa Grande Districts In San Diego, California,
2023
The University of Akron
Textural And Mineral Analysis Of Pegmatites From The Pala And Mesa Grande Districts In San Diego, California, Gabrielle Potter
Williams Honors College, Honors Research Projects
San Diego pegmatites of the Pala and Mesa Grande mining districts are world renowned for their gem-quality minerals and their Li-bearing mineral phases. Pegmatite genesis, especially in San Diego mines, has been a debated topic since the 1900’s (Morgan and London, 2012). Pegmatite genesis is caused by partial melting processes and fractional crystallization that form granitic melts with high concentrations of rare earth elements (REE), such as lithium. Assessing the exact mineralogy and determining the overall textures can provide insight into the crystallization history of pegmatites. In the San Diego pegmatites, lithium-bearing phases, such as lepidolite and pink elbaite (a …
Communicating Hazard Location Through Text And Map In Earthquake Early Warnings: A Mixed Methods Study,
2023
University at Albany, State University of New York
Communicating Hazard Location Through Text And Map In Earthquake Early Warnings: A Mixed Methods Study, Jeannette Sutton, Michele M. Wood, Nicholas A. Waugh, Savanah Crouch
Emergency Preparedness, Homeland Security, and Cybersecurity Faculty Scholarship
The purpose of this research was to examine the effect of presenting hazard location in different formats on key warning message outcomes—understanding, personalizing, believing, deciding, and milling. We conducted two studies using experiment and focus group methods. In the experiment, we compared a standard ShakeAlert earthquake early warning message, which merely implied location, to three enhanced messages that communicated information about the earthquake epicenter via text, map, or a combined text-and-map format. Focus groups explored reactions to warning messages accompanied by different types of maps. Overall, the standard ShakeAlert message was associated with worse message outcomes compared to messages that …
The Uncertain Future Of Landscapes Subjected To Mountaintop Removal Mining,
2023
West Virginia University
The Uncertain Future Of Landscapes Subjected To Mountaintop Removal Mining, Samuel James Bower
Graduate Theses, Dissertations, and Problem Reports (ETD)
Increased erosion following human land disturbance is a global issue for ecosystem health and land management. Mountaintop removal (MTR) mining – a type of surface mining predominately found in the Central Appalachian Coalfields region – is one of the most significant examples of human perturbation to a natural landscape. A post-MTR landscape, when compared to its natural state, has significantly different erosive potential due to the rearrangement of topography from mining and reclamation practices. Removal of vegetation and alterations to soil further influence erosion by raising the effective erodibility of substrate subjected to MTR. We quantify the changes in erosion …
Space Use And Movements Of Southeastern Breeding Double-Crested Cormorants (Nannopterum Auritum) In The United States,
2023
Mississippi State University
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,
2023
University of Georgia,
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 …
Fusion Of Visible And Thermal Images Improves Automated Detection And Classification Of Animals For Drone Surveys,
2023
Mississippi State University
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,
2023
University of Georgia
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, …
