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Shell Damage Patterns In Limpkin Mussel Middens At Bois D’Arc Lake, Arkansas, G.R. Graves

Journal of the Arkansas Academy of Science

The Limpkin (Aramus guarauna) is rapidly colonizing the lower Mississippi Valley from recently established Gulf Coast populations. Anecdotal reports indicate that it feeds on freshwater mussels and gastropods in Arkansas, but without documentation. Here I report an analysis of Limpkin shell middens from Bois d’Arc Lake in Hempstead Co. Limpkins at this location preyed heavily on Pyganodon grandis (Giant Floater), a large mussel species widely distributed in the Mississippi Valley. Limpkins employ vigorous bill blows to pierce holes in mussels and usually attack the anterior end of the shell. Video and photographs of feeding birds provide new insight on the …

Using Bird Odor To Deter Mammalian Predators From Depredating Shorebird Nests, Nicole D. Defelice

Open Access Master's Theses

Managing for populations of nesting piping plovers (Charadruis melodus) along the Atlantic coast has always been a challenge for state, federal, and conservation organizations. Though piping plovers face numerous threats, such as human disturbance and habitat degradation, controlling nest predators remain a challenge. In this study, we evaluated a non-lethal technique to deter mammalian predators from disturbing and predating shorebird nests by deploying chemically-extracted bird odors in areas where piping plovers historically nest, with the idea that predators will key in on the scents, realize there is no “food reward” associated with the scent, and then lose interest …

Genotypic And Phenotypic Analysis Of Crassostrea Virginica Populations For Use In Aquaculture, Angel Carrasquillo

Open Access Master's Theses

Increased production of eastern oysters (Crassostrea virginica) will be needed to meet consumer demand for seafood. To meet this demand for seafood in the face of disease and climate change, selective breeding has been proposed as a solution. This study evaluated the phenotypic traits of survival, growth, yield and disease acquisition of four wild eastern oyster (Crassostrea virginica) populations and two commercial lines from the Northeastern US at three grow-out sites in Rhode Island. We also investigated the genetic parameters of genetic difference between subpopulations (F_ST), inbreeding, percent of polymorphic loci, and heterozygosity in …

Evaluation Of The Effects Of O-Glcnacylation And Hypoxia On Estradiol Production By Bovine Granulosa Cells, Lauren Decastro

Open Access Master's Theses

The global population is on the rise putting pressure on the agricultural industry to increase production and increase the global food supply. The dairy industry has responded to this pressure by genetically selecting for higher milk production. This increase in production has coincided with a decline in fertility among dairy cows, due in part to a loss of reproductive cyclicity. Ovarian cyclicity and, in turn, reproductive cyclicity, is dependent upon proper development of ovarian follicles and the function of the cells that comprise the follicle and support the oocyte. One of these cell types is the granulosa cell. Granulosa cells …

Migratory Patterns Of Sand Tiger Sharks (Carcharias Taurus) Along The Us East Coast, Bethany Deloof

Open Access Master's Theses

Sand tigers (Carcharias taurus) are often taken as bycatch in commercial fisheries and captured by recreational anglers despite being prohibited. They also have one of the lowest rates of reproduction among elasmobranchs, producing two offspring every two or three years. These traits have generated concern about the sustainability of sand tiger populations, both globally and along the US East Coast, and interest in characterizing movements and essential habitat for this species. A total of 396 sand tigers, ranging from 78 - 246 cm fork length and 100.33 - 285 cm total length, were tagged with acoustic transmitters from …

Walking The Red Carpet: Hollywood And Censorship In China, Sheryl Soundar

Notre Dame Journal of International & Comparative Law

No abstract provided.

United States V. Sioux Nation Of Indians: A History Of Indigenous Diplomacy In The Black Hills, Elliott Lelaure

Master's Theses and Capstones

This thesis traces the history of Sioux-American competition for the Black Hills region of South Dakota from the Lakota’s discovery of the mountains in 1776 to the aftermath of United States v. Sioux Nation of Indians, a landmark 1980 Supreme Court case that awarded financial compensation to the tribes for the unconstitutional seizure of sacred lands. It argues that treaty negotiations in the nineteenth century – and attempts to resolve treaty-based disputes in the twentieth – testify to an international quality in the Sioux-American relationship. Far from passive victims of American expansion, it shows that Lakotas have consistently developed, debated, …

Occurrence And Fate Of Per- And Polyfluoroalkyl Substances (Pfas) In Atmospheric Deposition, Surface Waters, And Sediments Discharging To The Great Bay Estuary, New Hampshire, Katherine Alexina Wieck

Master's Theses and Capstones

Per- and polyfluoroalkyl substances (PFAS) are a class of several thousand synthetic organic compounds commonly utilized in the manufacturing of consumer products and in industrial processes since their initial development in the 1940s. Although the widespread presence of PFAS in environmental matrices derives from many different industrial and domestic sources, recent studies characterizing their fate in aqueous systems have primarily focused on point source discharge, such as those from wastewater treatment facilities, airports, and industrial complexes. Focusing on point sources neglects atmospheric deposition, an important diffuse background source of PFAS into surface waters and sediments. Furthermore, atmospheric deposition is likely …

Carotenoids And The Associations With Gut Microbiota Bacterial Populations In Chronic Kidney Disease Hemodialysis Patients, Andrea Kendall

Theses and Dissertations

Background: With increased prevalence and mortality of chronic kidney disease (CKD), treatment by renal replacement therapy using hemodialysis (HD) has increased in parallel. Emerging evidence suggests that gut microbiota play an important role in the progression of CKD; influential dietary factors have not been studied exhaustively to date.

Objective: To explore the relationships between dietary carotenoid intake, the abundance of specific gut microbiota, and symptom-related outcomes in patients with CKD on HD.

Methods: This cross-sectional study investigated the gut microbiota characteristics relative to carotenoid intake in CKD subjects on HD in central Illinois (n = 20). The Block Dialysis …

Decreasing Compassion Fatigue In Inpatient Nurses Using Debriefing And Group Care Program, Hanh Nguyen

Doctor of Nursing Practice Final Project Abstract

Purpose: The quality improvement project's purpose was to use a group care program to decrease compassion fatigue (work-related stress) in nurses. The project aimed to reduce compassion fatigue in nurses by 25% and nurse turnover rates by 10% post-intervention.

Background: The project was implemented on two inpatient units in Texas. Decrease in compassion fatigue can help improve nurse well-being and nurse retention, promoting safe quality nursing care.

Methodology: The Professional Quality of Life Scale (ProQOL) survey measured compassion satisfaction and burnout pre-intervention. Twelve weekly program sessions were completed using strategies: debriefing, breathing exercise, and muscle relaxation. A …

Vision 2024

Vision

No abstract provided.

The Hare And The Hawk: Predator, Prey, And Coat Color Mismatch In A Polymorphic Snowshoe Hare Population, Amanda Shuler Emmel

Graduate Student Theses, Dissertations, & Professional Papers

Climate change effects on predator-prey interactions are complex and poorly understood, with few study systems that explicitly connect specific antipredator traits to particular climate drivers. Such a system can be found in seasonal coat color change, whereby 21 species globally molt from a summer brown to a winter white coat to maintain camouflage with seasonal snow. Snowshoe hares (Lepus americanus) contend with increased predation due to climate-change induced coat color mismatch under decreasing snowcover. Through a combination of field experiments in the central Cascade mountains, my thesis investigates snowshoe hare mismatch and predation risk from both a predator …

Targeting Ocean Conservation Outcomes Through Threat Reduction, Joseph A. Turner, Malcolm Starkey, Nicholas K. Dulvy, Frank Hawkins, Louise Mair, Adeline Serckx, Thomas Brooks, Beth Polidoro, Stuart H. M. Butchart, Kent Carpenter, Minna Epps, Rima W. Jabado, Nicholas B. W. Macfarlane, Leon Bennun

Biological Sciences Faculty Publications

Nations have committed to reductions in the global rate of species extinctions through the Sustainable Development Goals 14 and 15, for ocean and terrestrial species, respectively. Biodiversity loss is worsening despite rapid growth in the number and extent of protected areas, both at sea and on land. Resolving this requires targeting the locations and actions that will deliver positive conservation outcomes for biodiversity. The Species Threat Abatement and Restoration (STAR) metric, developed by a consortium of experts, quantifies the contributions that abating threats and restoring habitats in specific places offer towards reducing extinction risk based on the IUCN Red List …

Response Of Helenium Amarum To Environmental Stressors In The Presence Of Mycorrhizal Fungi And Its Role As A Pollinator Resource, Austin Jameson, Lisa Horth

Biological Sciences Faculty Publications

Globally, climate change is causing shifts in precipitation patterns. Shifting precipitation patterns can be a stressor for many species. One species that is experiencing such stress is Helenium amarum Raf (H. Rock). H. amarum, thrives in dry upland pastures and low-lying grassy and sandy habitat in the mid-Atlantic (USA), where it persists despite storm-driven standing water. Helenium amarum is a species that is toxic to livestock and has been found outside its native range. Temperature and light impacts on germination are already known, but the role of water availability and potential ameliorating effects of mycorrhizae during water stress have …

Autoimmunities After Covid: An Interview With Cindy Patton, Cindy Patton, Travis Alexander, Nishant Shahani

English Faculty Publications

Taken collectively, Patton’s scholarship and activism has laid the foundation for insights in the health humanities, particularly AIDS studies, that consider the inextricable connections between epidemiology and ideology. Patton’s theorizations of stigma and discrimination patterns, her deconstruction of “truth” discourses subtending science, her critical re-evaluations of axioms associated with risk, safe sex, community, and knowledge production have been crucial interventions in the understanding of health and illness as cultural and discursive scripts. Among Patton’s most enduring contributions has been her theorization of how “African AIDS” was invented and circulated—that is, the notion of geographically bifurcated HIV pandemics split by the …

Go West: Population Genomics Reveals Unexpected Population Fluctuations And Little Gene Flow In Western Hemisphere Populations Of The Predatory Lady Beetle, Hippodamia Convergens, Arun Sethuraman, Schyler O. Nunziata, Angela Jones, John J. Obrycki, David W. Weisrock

Entomology Faculty Publications

Hippodamia convergens—the convergent lady beetle, has been used extensively in aug- mentative biological control of aphids, thrips, and whiteflies across its native range in North America, and was introduced into South America in the 1950s. Overwintering H. convergens populations from its native western range in the United States are com- mercially collected and released across its current range in the eastern USA, with little knowledge of the effectiveness of its augmentative biological control. Here we use a novel ddRADseq-based SNP/haplotype discovery approach to estimate its range- wide population diversity, differentiation, and recent evolutionary history. Our results indicate (1) significant population …

The Mechanoreceptor Piezo Is Required For Spermatogenesis In Bombyx Mori, Zhongjie Zhang, Xiaojing Liu, Bo Hu, Kai Chen, Ye Yu, Chenxin Sun, Dalin Zhu, Hua Bai, Subba Reddy Palli, Anjiang Tan

Entomology Faculty Publications

Background The animal sperm shows high diversity in morphology, components, and motility. In the lepidopteran model insect, the silkworm Bombyx mori, two types of sperm, including nucleate fertile eupyrene sperm and anucleate unfertile apyrene sperm, are generated. Apyrene sperm assists fertilization by facilitating the migration of eupyrene spermatozoa from the bursa copulatrix to the spermatheca. During spermatogenesis, eupyrene sperm bundles extrude the cytoplasm by peristaltic squeezing, while the nuclei of the apyrene sperm bundles are discarded with the same process, forming matured sperm.

Results In this study, we describe that a mechanoreceptor BmPiezo, the sole Piezo ortholog in B. mori, …

Abortion Pills: Us History And Politics, Carrie N. Baker

Open Educational Resources: Textbooks

This is the first book to offer a comprehensive history of abortion pills in the United States. Public intellectual and lawyer Carrie N. Baker shows how courageous activists waged a decades-long campaign to establish, expand, and maintain access to abortion pills. Weaving their voices throughout her book, Baker recounts both dramatic and everyday acts of their resistance. These activists battled anti-abortion forces, overly cautious policymakers, medical gatekeepers, and fearful allies in their four-decade-long fight to free abortion pills. In post-Roe America, abortion pills are currently playing a critically important role in providing safe abortion access to tens of thousands of …

Segmentation Of Glacier Area Using U-Net Through Landsat Satellite Imagery For Quantification Of Glacier Recession And Its Impact On Marine Systems, Edmund Robbins, Robert D. Breininger, Maxwell Jiang, Michelle Madera, Ryan T. White, Nezamoddin N. Kachouie

Mathematics and System Engineering Faculty Publications

Glaciers have experienced a global trend of recession within the past century. Quantification of glacier variations using satellite imagery has been of great interest due to the importance of glaciers as freshwater resources and as indicators of climate change. Spatiotemporal glacier dynamics must be monitored to quantify glacier variations. The potential methods to quantify spatiotemporal glacier dynamics with increasing complexity levels include detecting the terminus location, measuring the length of the glacier from the accumulation zone to the terminus, quantifying the glacier surface area, and measuring glacier volume. Although some deep learning methods designed purposefully for glacier boundary segmentation have …

No Orthopathy Without Orthoaesthesis: On The Necessity Of Negative Effort, Ryan G. Duns

Theology Faculty Research and Publications

Theologians have become increasingly attentive to the role emotion and experience must play in theological reflection. Several thinkers have recently done so by appropriating and developing Jon Sobrino’s understanding of orthopathy, or “right affect.” A close examination of these efforts, however, reveals inconsistencies in the way the category is understood and deployed. This article redresses these inconsistencies by complementing orthopathy with orthoaesthesis, or “right perception.” The article opens by considering various appeals to orthopathy before suggesting how William James’s theory of emotion might provide the category with clarifying content. The second stage engages Simone Weil and Iris Murdoch as practitioners …

Evaluating The Effectiveness Of Using Digital Technologies In Music Education, Flutura Gagica Rexhepi, Rreze Kryeziu Breznica, Burhan Reshat Rexhepi

Journal of Educational Technology Development and Exchange (JETDE)

The relevance of the study of the effectiveness of digital technologies in music education lies in the need to adapt modern music education to the requirements of the digital world. The purpose of this study was to evaluate the effectiveness of digital technologies in music education and to determine their impact on the quality of music education. The methods used in the study were the statistical method, modelling, the method of generalising experience, as well as experimentation and theoretical analysis. The results of the study showed that the use of modern digital technologies in music education could make the learning …

Human Cell Modeling Of Cdkl5-Deficiency Disorder With Patient-Derived Organoids And Hd-Mea, Alyssa Paynton

Cal Poly Humboldt theses and projects

CDKL5 deficiency disorder (CDD) is an X-linked disorder that leads to severe cognitive impairments as well as infantile epilepsy. The only FDA approved therapy helps to reduce seizure frequency, however there are currently no cures approved. While murine models have proven useful in characterizing CDD, there are limitations due to differences in brain structure and development across species that may lead to the reported lack of spontaneous seizures in the mouse, a hallmark in humans affected by this disorder. By the utilization of patient-specific iPSCs generated into cerebral organoids, a more comprehensive and in-depth analysis into rare neurological disorders, such …

Characterizing The Beneficial Uses Of The Arcata Marsh Constructed Wetland Treatment System And Wildlife Sanctuary, Andrew S. Wolff

Cal Poly Humboldt theses and projects

The Arcata Marsh Constructed Wetland Treatment System and Wildlife Sanctuary, located in Arcata California, has been in operation since 1986. Not only has it served as the wastewater treatment facility for the city, it has also provided other beneficial uses such as acting as a sanctuary for bird, mammal, amphibian, and macroinvertebrate species. With facility upgrades currently underway, it has become important to revisit the beneficial uses of the Arcata Marsh. This project aimed to identify and characterize these beneficial uses. Literature review was conducted, and eleven beneficial uses were identified. Existing and newly obtained data were analyzed to characterize …

Environmental Implications Of Modern Food Production: An Analysis For The Conscious Consumer, Jessica T. Coming

Cal Poly Humboldt theses and projects

This project explores the pathways by which agriculture affects the environment and determines which foods have the greatest climate, water, and land impacts. Agricultural effects on the environment are extensive, from loss of habitat and declines in regional biodiversity to disruption of global nutrient cycles and climate change. Global food production accounts for 26-34% of annual anthropogenic greenhouse gas emissions, makes up 38-46% of habitable land, and is responsible for 70% of freshwater extraction. The effect of agriculture on the environment is most significantly dictated by what type of food is being produced. Animal-based food products consistently have the highest …

Pond Characteristics That Influence Oviposition Site Selection By Two Pond-Breeding Amphibians, Northern Red-Legged Frog (Rana Aurora) And Northwestern Salamander (Ambystoma Gracile), Jessica Jones

Cal Poly Humboldt theses and projects

Pond-breeding amphibians connect aquatic and terrestrial habitats through their biphasic life cycle, and understanding pond characteristics that support oviposition sites for multiple species is important for amphibian conservation. Two common amphibians in the Pacific Northwest, Northern red-legged frog (Rana aurora) and Northwestern salamander (Ambystoma gracile) often oviposit in the same pond; however, prior studies have focused on pond use by one species or the other, but not both together. I surveyed pond and oviposition site characteristics of 26 ponds in Humboldt County, CA, 10 of which were used only by R. aurora and 16 of which …

A Post-Colonial Criticism Of Ernest Callenbach's Ecotopia, Kaitlyn R. O'Dell

Cal Poly Humboldt theses and projects

The representation of Indigenous land-based cosmologies within Ernest Callenbach’s Ecotopia communicates a real perception of our world through the constructed imaginative society within this speculative fiction novel. Ecotopia is an alternative Pacific West Coast society that counters the dominant United States model in its holistic and green approach. This green society relies heavily on Indigenous ideology but lacks actual Indigenous voices or communities within this white idealized society. This research provides an example of the deconstruction of this popular novel to its main problematic components, establishing why the use of Indigenous beliefs and values can cause negative implications to the …

The Structure Of U.S. Climate Policy, Michael Pappas

Publications

Urgent emission reduction and community adaptation efforts are necessary to avert catastrophic climate-change harms. To assess our nation’s progress toward such efforts, this Article develops a comprehensive structural analysis of U.S. climate policy at the federal, state, and local levels. It observes that current climate policies reflect disparate federal, state, and local strategies around emissions regulation, emission reduction subsidies, adaptation, and liability approaches. The Article then analyzes the dynamics between federal, state, and local strategies in these policy areas.

This examination leads to some surprising conclusions. Under current policy alignments, further emission regulation measures do not appear to be realistic …

Trans Animus, Scott Skinner-Thompson

Publications

No abstract provided.

Domestic Supply (A Feminist Proposal), Jennifer S. Hendricks

Publications

No abstract provided.

Shift In Algal Blooms From Micro‐ To Macroalgae Around China With Increasing Eutrophication And Climate Change, Yuan Feng, Yonglong Xiong, Jm Hall‐Spencer, Kailin Liu, John Beardall, K Gao, Jingke Ge, Juntian Xu, G Gao

School of Biological and Marine Sciences

Blooms of microalgal red tides and macroalgae (e.g., green and golden tides caused by Ulva and Sargassum) have caused widespread problems around China in recent years, but there is uncertainty around what triggers these blooms and how they interact. Here, we use 30 years of monitoring data to help answer these questions, focusing on the four main species of microalgae Prorocentrum donghaiense, Karenia mikimotoi, Noctiluca scintillans, and Skeletonema costatum) associated with red tides in the region. The frequency of red tides increased from 1991 to 2003 and then decreased until 2020, with S. costatum red tides exhibiting the highest rate …