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Response Of Fish And Invertebrate Larvae To Backreef Sounds At Varying Distances: Implications For Habitat Restoration, Emily R. Anderson, Jack Butler, Mark J. Butler Jan 2021

Response Of Fish And Invertebrate Larvae To Backreef Sounds At Varying Distances: Implications For Habitat Restoration, Emily R. Anderson, Jack Butler, Mark J. Butler

Biological Sciences Faculty Publications

Underwater sound is used by many marine larvae to orient to coastal habitats including backreef, sponge-dominated hardbottom habitat in the Florida Keys (FL, United States)—a particularly “noisy” coastal habitat. However, the distance over which acoustic cues are attractive to settlement-stage larvae is generally unknown. We examined this phenomenon in a region of the Florida Keys where mass sponge die-offs have diminished both underwater soundscapes and larval settlement. The absence of pronounced hardbottom-associated sound over such a large area allowed us to experimentally test in situ the response of fish and invertebrate larvae to broadcasted sounds at different distances from their …

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Effects Of Weather On Foraging Success And Hunting Frequency In Winter-Irruptive Snowy Owls (Bubo Scandiacus) In Upstate New York, Russell E. Winter, William M. Shields Jan 2021

Effects Of Weather On Foraging Success And Hunting Frequency In Winter-Irruptive Snowy Owls (Bubo Scandiacus) In Upstate New York, Russell E. Winter, William M. Shields

Biological Sciences Faculty Publications

The effects of weather on an individual can often alter the population dynamics of a species. Knowledge of how weather influences individual behavior is therefore essential in understanding its full impact in the context of population ecology. Snowy Owls (Bubo scandiacus) exhibit expensive long-distance migrations in winters following population irruptions. During irruptive movements, many owls migrate past the southernmost extent of their traditional wintering grounds, the mechanism for which is still debated. We propose and test the “milder climate” hypothesis; Snowy Owls wintering in lower latitudes are better able to meet their metabolic demands due to higher temperatures …

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Spatio-Temporal Modelling Of Tick Life-Stage Count Data With Spatially Varying Coefficients, Thabo Lephoto, Henry Mwambi, Oliver Bodhlyera, Holly Gaff Jan 2021

Spatio-Temporal Modelling Of Tick Life-Stage Count Data With Spatially Varying Coefficients, Thabo Lephoto, Henry Mwambi, Oliver Bodhlyera, Holly Gaff

Biological Sciences Faculty Publications

There is a vast amount of geo-referenced data in many fields of study including ecological studies. Geo-referencing is usually by point referencing; that is, latitudes and longitudes or by areal referencing, which includes districts, counties, states, provinces and other administrative units. The availability of large geo-referenced datasets for modelling has necessitated the development and application of spatial statistical methods. However, spatial varying coefficients models exploring the abundance of tick counts remain limited. In this study we used data that was collected and prepared by researchers in the Department of Biological Sciences from the Old Dominion University, Virginia, USA. We modelled …

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Self And Microbiota-Derived Epitopes Induce Cd4⁺ T Cell Anergy And Conversion Into Cd4⁺Foxp3⁺ Regulatory Cells, Michal P. Kuczma, Edyta A. Szurek, Anna Cebula, Vu L. Ngo, Maciej Pietrzak, Piotr Kraj, Timothy L. Denning, Leszek Ignatowicz Jan 2021

Self And Microbiota-Derived Epitopes Induce Cd4⁺ T Cell Anergy And Conversion Into Cd4⁺Foxp3⁺ Regulatory Cells, Michal P. Kuczma, Edyta A. Szurek, Anna Cebula, Vu L. Ngo, Maciej Pietrzak, Piotr Kraj, Timothy L. Denning, Leszek Ignatowicz

Biological Sciences Faculty Publications

The physiological role of T cell anergy induction as a key mechanism supporting self-tolerance remains undefined, and natural antigens that induce anergy are largely unknown. In this report, we used TCR sequencing to show that the recruitment of CD4+CD44+Foxp3−CD73+FR4+ anergic (Tan) cells expands the CD4+Foxp3+ (Tregs) repertoire. Next, we report that blockade in peripherally-induced Tregs (pTregs) formation due to mutation in CNS1 region of Foxp3 or chronic exposure to a selecting self-peptide result in an accumulation of Tan cells. Finally, we show that microbial antigens from Akkermansia muciniphila …

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Molecular Studies On The Interactions Between Biomphalaria Snails And Schistosoma Mansoni, Lijun Lu Dec 2020

Molecular Studies On The Interactions Between Biomphalaria Snails And Schistosoma Mansoni, Lijun Lu

Biology ETDs

Biomphalaria snails serve as vectors for Schistosoma mansoni, a trematode causing human schistosomiasis. Control of Schistosoma mansoni involves chemotherapy of affected people, but new control methods built on improved understanding of schistosome-snail interactions are needed. My dissertation applies molecular and bioinformatics approaches to understand such interactions. Chapter 1 shows that significant differences exist among Biomphalaria species in Africa with respect to their ability to support schistosome development. Chapters 2 and 3 reveal the transcriptional responses of Biomphalaria glabrata susceptible (SUS) or resistant (RES) to Schistosoma mansoni. Chapter 2 identifies a new family of snail immune factors, the AIG …

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Fruiting Body Form, Not Nutritional Mode, Is The Major Driver Of Diversification In Mushroom-Forming Fungi, Marisol Sánchez-García, Martin Ryberg, Faheema Kalsoom Khan, Torda Varga, László G. Nagy, David S. Hibbett Dec 2020

Fruiting Body Form, Not Nutritional Mode, Is The Major Driver Of Diversification In Mushroom-Forming Fungi, Marisol Sánchez-García, Martin Ryberg, Faheema Kalsoom Khan, Torda Varga, László G. Nagy, David S. Hibbett

Biology

With ∼36,000 described species, Agaricomycetes are among the most successful groups of Fungi. Agaricomycetes display great diversity in fruiting body forms and nutritional modes. Most have pileate-stipitate fruiting bodies (with a cap and stalk), but the group also contains crust-like resupinate fungi, polypores, coral fungi, and gasteroid forms (e.g., puffballs and stinkhorns). Some Agaricomycetes enter into ectomycorrhizal symbioses with plants, while others are decayers (saprotrophs) or pathogens. We constructed a megaphylogeny of 8,400 species and used it to test the following five hypotheses regarding the evolution of morphological and ecological traits in Agaricomycetes and their impact on diversification: 1) resupinate …

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Ogre-Faced, Net-Casting Spiders Use Auditory Cues To Detect Airborne Prey, Jay A. Stafstrom, Gil Menda, Eya I. Nitzany, Eileen A. Hebets, Ronald R. Hoy Dec 2020

Ogre-Faced, Net-Casting Spiders Use Auditory Cues To Detect Airborne Prey, Jay A. Stafstrom, Gil Menda, Eya I. Nitzany, Eileen A. Hebets, Ronald R. Hoy

Eileen Hebets Publications

Prey-capture behavior among spiders varies greatly from passive entrapment in webs to running down prey items on foot. Somewhere in the middle are the ogre-faced, net-casting spiders (Deinopidae: Deinopis) that actively capture prey while being suspended within a frame web. Using a net held between their front four legs, these spiders lunge downward to ensnare prey from off the ground beneath them. This “forward strike” is sensorially mediated by a massive pair of hypersensitive, night-vision eyes. Deinopids can also intercept flying insects with a “backward strike,” a ballistically rapid, overhead back-twist, that seems not to rely on visual cues. Past …

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One Step Closer To A Better Starling Trap, James R. Thiele Dec 2020

One Step Closer To A Better Starling Trap, James R. Thiele

Human–Wildlife Interactions

European starlings (Sturnus vulgaris) are an invasive species in the United States that damage agriculture, personal property, and threaten human health and safety. The U.S. Department of Agriculture Wildlife Services provides technical support to mitigate damage by controlling starling populations at concentrated animal feeding operations, landfills, utilities, and urban areas. Wildlife Services uses DRC-1339, a registered toxicant, to reduce starling populations. Trapping can also be an effective tool but requires more time at a higher cost than DRC-1339. Trapping starlings, however, may be needed to provide a viable alternative to mitigate damage in areas where toxicant use may …

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Black Vulture Conflict And Management In The United States: Damage Trends, Management Overview, And Research Needs, Bryan M. Kluever, Morgan B. Pfeiffer, Scott C. Barras, Brett G. Dunlap, Lee A. Humberg Dec 2020

Black Vulture Conflict And Management In The United States: Damage Trends, Management Overview, And Research Needs, Bryan M. Kluever, Morgan B. Pfeiffer, Scott C. Barras, Brett G. Dunlap, Lee A. Humberg

Human–Wildlife Interactions

Contrary to rapid declines of many vulture (Accipitridae, Cathartidea) species worldwide, black vulture (Coragyps atratus) populations are increasing and expanding their range in North America. Vultures exhibit complex behaviors and can adapt to any human-dominated landscape or land use. These traits, combined with population growth and range expansion, have contributed to increased human–vulture conflicts. Our goal was to summarize the current status and trends in human–black vulture conflicts (hereafter human–vulture conflicts), review available management strategies, identify knowledge gaps, and provide recommendations to enhance management and understanding of this species and the associated conflicts. We found human–vulture conflicts are …

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Imagining The Internal Reproductive Environment: Function And Evolution Of The Drosophila Melanogaster Female Reproductive Tract, Caitlin Elizabeth Mcdonough-Goldstein Dec 2020

Imagining The Internal Reproductive Environment: Function And Evolution Of The Drosophila Melanogaster Female Reproductive Tract, Caitlin Elizabeth Mcdonough-Goldstein

Dissertations - ALL

Sexual reproduction involves complex coordination, and potentially competition, among the reproductive cells, fluids, and structures of all individuals involved. For internally fertilizing species, these interactions occur within the body of one sex, predominantly the female, or ovary-associated, reproductive tract. Thus, characterizing the dynamics of the female reproductive tract is critical to understanding the interactions that mediate reproductive success. Although there has been increasing movement toward revealing the active role of the female reproductive tract in shaping and influencing reproductive outcomes, our knowledge of this environment remains limited as a result of both historical biases and technical constraints. My dissertation advances …

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Control Of Blood Volume Following Hypovolemic Challenge In Vertebrates: Transcapillary Versus Lymphatic Mechanisms., Stanley S. Hillman, Robert C. Drewes, Michael S. Hedrick Dec 2020

Control Of Blood Volume Following Hypovolemic Challenge In Vertebrates: Transcapillary Versus Lymphatic Mechanisms., Stanley S. Hillman, Robert C. Drewes, Michael S. Hedrick

Biology Faculty Publications and Presentations

Anurans have an exceptional capacity for maintaining vascular volume compared with other groups of vertebrates. They can mobilize interstitial fluids via lymphatic return at rates that are ten-fold higher than mammals. This extraordinary capacity is the result of coordination of specialized skeletal muscles and pulmonary ventilation that vary volume and pressure of subcutaneous lymph sacs, thus moving lymph to dorsally located lymph hearts that return lymph to the vascular space. Variation in the capacity to mobilize lymph within anurans varies with the degree of terrestriality, development of skeletal muscles, lung volume and lung compliance, and lymph heart pressure development. This …

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Influence Of Testosterone On Male-Male Competition In The Red-Sided Garter Snake, Thamnophis Sirtalis Parietalis, Isabella M. G. Bukovich Dec 2020

Influence Of Testosterone On Male-Male Competition In The Red-Sided Garter Snake, Thamnophis Sirtalis Parietalis, Isabella M. G. Bukovich

Senior Honors Projects, 2020-current

Female mimicry in the red-sided garter snake, Thamnophis sirtalis parietalis, is described in several well-studied evolutionary advantages, but an aspect that remains elusive is how reproductive traits are linked to the 3-fold higher circulating androgens in males with this phenotype. In this study, we implanted male garter snakes (n=15 per group) with either a blank implant (SHAM; control) or a T implant, the latter simulating the female mimic phenotype. Following simulated low-temperature dormancy, males were scored for courtship intensity over three days of behavioral trials with females housed in the same facility. Males were sacrificed, and sperm were collected …

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Temporal Thermal Heterogeneity As A Potential Evolutionary Driver Of Thermoregulation In The Generalist Grasshopper Melanoplus Differentialis From Five Sites In The Midwestern And Southern United States, Devin Preston Dec 2020

Temporal Thermal Heterogeneity As A Potential Evolutionary Driver Of Thermoregulation In The Generalist Grasshopper Melanoplus Differentialis From Five Sites In The Midwestern And Southern United States, Devin Preston

LSU New Orleans Theses and Dissertations

Environmental drivers of the evolution of thermoregulation, especially thermal fluctuation, have been incompletely investigated. I used a combination of field and laboratory studies to determine if thermal heterogeneity selected for greater thermal tolerance or ability to thermoregulate in a generalist grasshopper by testing upper and lower thermal limits, behavioral thermoregulation, and acclimation. I measured these from individuals originating from sites that had varying degrees of thermal fluctuation over time. I found partial support for thermal heterogeneity as an evolutionary driver of thermal tolerance, behavioral thermoregulation, and acclimation. However, whether or not differences in these metrics conformed to my hypothesis varied …

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Comparison Of Cardiac Muscle Between Male And Female Rats With Exercise And Aging: Analyzing Vitals, Gdnf Expression, Ngf Expression, Rna Expression, Sympathetic Innervation, Parasympathetic Innervation, And Sensory Innervation, Katelyn Kurrie Dec 2020

Comparison Of Cardiac Muscle Between Male And Female Rats With Exercise And Aging: Analyzing Vitals, Gdnf Expression, Ngf Expression, Rna Expression, Sympathetic Innervation, Parasympathetic Innervation, And Sensory Innervation, Katelyn Kurrie

Honors Theses

The direction of my research-based thesis answers the question of how exercise affects the cardiovascular system with aging in male and female rats. My study would highlight the important differences of the cardiovascular system of both sexes which could lead to sex-specific insight on the cardiovascular disease epidemic which prevails as the most common cause of death in the United States. The studies completed will test the hypothesis: neurotrophic factor will be higher in females than males due to the higher presence of estrogen in females. The trophic factor is predicted to increase in both males and females with regular …

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Mechanisms By Which Mnte-2-Pyp Suppresses Prostate Cancer Cell Growth, Yuxiang Zhu Dec 2020

Mechanisms By Which Mnte-2-Pyp Suppresses Prostate Cancer Cell Growth, Yuxiang Zhu

Theses & Dissertations

Prostate cancer patients are often treated with radiotherapy. MnTE-2-PyP, is a superoxide dismutase (SOD) mimic and a known radioprotector of normal tissues. Our recent work demonstrates that MnTE-2-PyP also inhibits prostate cancer progression with radiotherapy; however, the mechanisms remain unclear. In this thesis, we identified that MnTE-2-PyP-induced intracellular H2O2 levels are critical in inhibiting growth of prostate cancer cells. We found that MnTE-2-PyP induced protein oxidations in PC3 cells and one major group of oxidized protein targets were involved in energy metabolism. The oxidative phosphorylation rates were significantly enhanced in both PC3 and LNCaP cells with MnTE-2-PyP treatment, but mitochondrial …

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The Mayfly Newsletter, Donna Giberson Dec 2020

The Mayfly Newsletter, Donna Giberson

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.

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The Genetic Influence On Subjective Well-Being: A Review Of The Current Knowledge On The Role Of Genetics On Our Sense Of Subjective Well-Being And The Implications It Has For Future Research In Improving Well-Being At Both A Population And Individual Level., Abhishek Gupta Dec 2020

The Genetic Influence On Subjective Well-Being: A Review Of The Current Knowledge On The Role Of Genetics On Our Sense Of Subjective Well-Being And The Implications It Has For Future Research In Improving Well-Being At Both A Population And Individual Level., Abhishek Gupta

Honors Scholar Theses

This thesis project explores the genetic underpinnings of one of the most cherished attributes in the world, well-being.1 Specifically, it attempts to understand the influence of the genome on subjective, or experienced, well-being. An investigation was conducted into current literature concerning both the structure of measurement devices of well-being as well as association studies to determine the scope of the correlation that exists between the genome and well-being and identify genetic findings of interest. Ultimately, being able to provide evidence of causality between the genome and sense of well-being at this iteration of well-being and genome research is limited, …

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The Decision Maker: Understanding The Role Of Ifrd1 In Urothelial Plasticity And Regeneration, Bisiayo Erionmwon Fashemi Dec 2020

The Decision Maker: Understanding The Role Of Ifrd1 In Urothelial Plasticity And Regeneration, Bisiayo Erionmwon Fashemi

Arts & Sciences Graduate Student Theses and Dissertations

The bladder urothelium forms a highly specialized watertight barrier to urinary wastes. The urothelium offers an unusual example of tissue regeneration: although urothelial cells do not rapidly turn over under physiological conditions, they have an impressive capacity to regenerate tissue upon injury. Even more remarkable, depending on the modality of injury (sterile, infectious) there appear to be two distinctive modes of urothelial regeneration. We have previously shown that in response to a urinary tract infection (UTI), the urothelial stem cell niche becomes activated and induces rapid restoration of the urothelium, whereas, regeneration following sterile injury does not involve stem cell …

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Advances In The Understanding Of Auxin Signaling Through Indirect Mechanisms, Ryan Joseph Emenecker Dec 2020

Advances In The Understanding Of Auxin Signaling Through Indirect Mechanisms, Ryan Joseph Emenecker

Arts & Sciences Graduate Student Theses and Dissertations

The plant hormone auxin is remarkable in its capacity to seemingly regulate all plant growth and developmental processes. Because of this, plants have evolved numerous mechanisms to allow for specific responses to auxin dependent on tissue type and developmental stage. Despite the importance of this specificity, we understand very little with respect to the molecular mechanisms underlying it. In this work, we examine two mechanisms used by plants to modulate auxin response across different tissues. First, we describe our finding that auxin interactions with another plant hormone, abscisic acid, is used as a mechanism to regulate auxin responsiveness in the …

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Innate Pathogenic Traits In Oral Yeasts, Ayat Ibrahiem Esmaeel Al-Laaeiby, Adnan A. Al-Mousawi, Inaam M.N. Alrubayae, Abdullah Al-Saadoon, Maysoon Almayahi Dec 2020

Innate Pathogenic Traits In Oral Yeasts, Ayat Ibrahiem Esmaeel Al-Laaeiby, Adnan A. Al-Mousawi, Inaam M.N. Alrubayae, Abdullah Al-Saadoon, Maysoon Almayahi

Karbala International Journal of Modern Science

The normal flora community plays a significant role in both healthy and patient individual’s bodies. It has improved its ability to change from beneficial to opportunistic organisms causing crucial infections in immunocompromised patients. This study was conducted to identify the community of yeast species, and to investigate potential virulence factors. Saliva samples were collected from healthy individuals, yeast species were isolated and identified using both traditional and advance molecular genetics technique. The results revealed that Candida albicans was the dominant isolate, while Meyerozyma caribbica was the least. The phylogenetic tree was constructed for 13 species using the Neighbour-Joining method, which …

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In Vitro Cytotoxic Effect Of Aspergillus Clavatus Generated Silver Nanoparticles On Raw 264.7 Cells, Shahnaz Majeed, Mohammed Danish Dr., M. N Mohamad Ibrahim Prof., Siti Hajar Binti Sekeri, Shah Aarif Ul Islam Dr., Mohammed Tahir Ansari Dec 2020

In Vitro Cytotoxic Effect Of Aspergillus Clavatus Generated Silver Nanoparticles On Raw 264.7 Cells, Shahnaz Majeed, Mohammed Danish Dr., M. N Mohamad Ibrahim Prof., Siti Hajar Binti Sekeri, Shah Aarif Ul Islam Dr., Mohammed Tahir Ansari

Karbala International Journal of Modern Science

Aspergillus clavatus (A. clavatus ) was utilized for the synthesis of silver nanoparticles (AgNPs) isolated from the soil. . About one (1) mM silver nitrate (AgNO3) was gradually added to the aqueous extract of A. clavatus, the colour of the extract becomes dark brown indicates the AgNPs formation. The UV -Vis spectrophotometry showed the lambda max (-λmax) at 430 nm. Fourier-transform infrared spectroscopy (FTIR) results revealed the peaks at 3221.40 cm N-H symmetric amide, 1645.78 NH bend amine, 1557.02 N-H bend amide groups are associated with AgNPs. The powder form of AgNPs was recorded …

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Insights Into Insular Isolation Of The Bull Shark, Carcharhinus Leucas (Müller And Henle, 1839), In Fijian Waters, Kerstin B J Glaus, Sharon A. Appleyard, Brian Stockwell, Juerg M. Brunnschweiler, Mahmood S. Shivji, Eric Clua, Amandine D. Marie, Ciro Rico Dec 2020

Insights Into Insular Isolation Of The Bull Shark, Carcharhinus Leucas (Müller And Henle, 1839), In Fijian Waters, Kerstin B J Glaus, Sharon A. Appleyard, Brian Stockwell, Juerg M. Brunnschweiler, Mahmood S. Shivji, Eric Clua, Amandine D. Marie, Ciro Rico

Biology Faculty Articles

The bull shark (Carcharhinus leucas) is a large, mobile, circumglobally distributed high trophic level predator that inhabits a variety of remote islands and continental coastal habitats, including freshwater environments. Here, we hypothesize that the barriers to dispersal created by large oceanic expanses and deep-water trenches result in a heterogeneous distribution of the neutral genetic diversity between island bull shark populations compared to populations sampled in continental locations connected through continuous coastlines of continental shelves. We analyzed 1,494 high-quality neutral single nucleotide polymorphism (SNP) markers in 215 individual bull sharks from widespread locations across the Indian and Pacific Oceans …

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Maize Microrna166 Inactivation Confers Plant Development And Abiotic Stress Resistance, Na Li, Tianxiao Yang, Zhanyong Guo, Qiusheng Wang, Mao Chai, Mingbo Wu, Xiaoqi Li, Weiya Li, Guangxian Li, Jihua Tang, Guiliang Tang Dec 2020

Maize Microrna166 Inactivation Confers Plant Development And Abiotic Stress Resistance, Na Li, Tianxiao Yang, Zhanyong Guo, Qiusheng Wang, Mao Chai, Mingbo Wu, Xiaoqi Li, Weiya Li, Guangxian Li, Jihua Tang, Guiliang Tang

Michigan Tech Publications, Part 1

MicroRNAs are important regulators in plant developmental processes and stress responses. In this study, we generated a series of maize STTM166 transgenic plants. Knock-down of miR166 resulted in various morphological changes, including rolled leaves, enhanced abiotic stress resistance, inferior yield-related traits, vascular pattern and epidermis structures, tassel architecture, as well as abscisic acid (ABA) level elevation and indole acetic acid (IAA) level reduction in maize. To profile miR166 regulated genes, we performed RNA-seq and qRT-PCR analysis. A total of 178 differentially expressed genes (DEGs) were identified, including 118 up-regulated and 60 down-regulated genes. These DEGs were strongly enriched in cell …

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Assessing Moringa Oleifera Plants As Exposure Pathways For Heavy Metals In Highly Contaminated Areas, Marissa Louise Mayfield* Dec 2020

Assessing Moringa Oleifera Plants As Exposure Pathways For Heavy Metals In Highly Contaminated Areas, Marissa Louise Mayfield*

Biology Theses

This study examined the uptake of heavy metals by Moringa oleifera trees in both field and laboratory settings. The main goal of this study was to determine whether using Moringa, grown in heavily contaminated areas, as food or herbal supplements increases the risk of heavy metal exposure. The field component of this study was carried out in the Southern part of Kabwe, Zambia where a lead-zinc mine has left a legacy of severe environmental pollution in the neighboring areas. Moringa trees have several medicinal properties which is one of the reasons they were first introduced to the area. The trees …

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Prevalence Of Snake Fungal Disease Caused By Ophidiomyces Ophiodiicola In East Texas, Alan Lizarraga Dec 2020

Prevalence Of Snake Fungal Disease Caused By Ophidiomyces Ophiodiicola In East Texas, Alan Lizarraga

Biology Theses

Fungal pathogens and resultant disease are credited with the decline of many species across all branches of the tree of life. Fungal diseases such as Snake Fungal Disease (SFD), primarily caused by the fungus Ophidiomyces ophiodiicola (Oo), have been strongly associated with the cause of the decrease/disappearance of many snake populations in North America. To date SFD in the wild has been described as far southwest as central Louisiana. Due to similar conditions and the proximity of East Texas to central Louisiana, a survey of local snake populations provided crucial information about the spread and presence of this emerging pathogen. …

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Functional Investigations Of Proteins And Enzymatic Toxins From Full-Length-Enriched Cdna Of Timber Rattlesnake (Crotalus Horridus), Joshua Osula Dec 2020

Functional Investigations Of Proteins And Enzymatic Toxins From Full-Length-Enriched Cdna Of Timber Rattlesnake (Crotalus Horridus), Joshua Osula

Theses

Snake Venom is a highly modified form of saliva, contains hundreds of zootoxins, necrotoxins, cytotoxins, neurotoxins, and mytotoxins, all of which are primarily made up of mostly proteins, polypeptides, and other components such as enzymes, lipids, and carbohydrates. Although snake venom is known for its harmful effects, it has also had a positive impact in scientific discovery and medicine. Some toxins from snakes function to inhibit pain, and this means they can be very effective analgesics. For instance, crotalphine is considered a 14-amino-acid-peptide that has a disulfide bond and shows analgesic properties through TRPA1 desensitization. This …

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Ultracontinuous Single Haplotype Genome Assemblies For The Domestic Cat (Felis Catus) And Asian Leopard Cat (Prionailurus Bengalensis), Kevin R. Bredemeyer, Andrew J. Harris, Gang Li, Le Zhao, Nicole M. Foley, Melody E. Roelke-Parker, Stephen James O'Brien, Leslie A. Lyons, Wesley C. Warren, William J. Murphy Dec 2020

Ultracontinuous Single Haplotype Genome Assemblies For The Domestic Cat (Felis Catus) And Asian Leopard Cat (Prionailurus Bengalensis), Kevin R. Bredemeyer, Andrew J. Harris, Gang Li, Le Zhao, Nicole M. Foley, Melody E. Roelke-Parker, Stephen James O'Brien, Leslie A. Lyons, Wesley C. Warren, William J. Murphy

Biology Faculty Articles

In addition to including one of the most popular companion animals, species from the cat family Felidae serve as a powerful system for genetic analysis of inherited and infectious disease, as well as for the study of phenotypic evolution and speciation. Previous diploid-based genome assemblies for the domestic cat have served as the primary reference for genomic studies within the cat family. However, these versions suffered from poor resolution of complex and highly repetitive regions, with substantial amounts of unplaced sequence that is polymorphic or copy number variable. We sequenced the genome of a female F1 Bengal hybrid cat, the …

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The Role Of Dogs In Ancient Mesopotamia, Hannah Chester Dec 2020

The Role Of Dogs In Ancient Mesopotamia, Hannah Chester

Fall Student Research Symposium 2020

This research summarizes the role of dogs in ancient Mesopotamian society, with an emphasis on the religious aspect of dogs in regards to the goddess Gula.

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The Effects Of Estrogen And Arousal On Latent Inhibition, Michael Herron Dec 2020

The Effects Of Estrogen And Arousal On Latent Inhibition, Michael Herron

Fall Student Research Symposium 2020

The behaviors of humans and animals are dependent on neurotransmitters and hormones that affect attention, alertness, and associative learning. These include the hormone estrogen (which plays an interesting role in cognition and attentional processes) and the neurotransmitter orexin (involved in wakefulness, arousal and goal-directed behaviors). Here we evaluated the roles of orexin receptors and estrogen in Latent Inhibition (LI), a measure of attention and associative learning. Latent inhibition is a behavioral phenomenon in which an organism's ability to associate new meaning to a familiar previously inconsequential (pre-exposed) stimulus is reduced when compared to associating meaning to a novel stimulus (non …

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The Importance Of Experiment Replication In Understanding Distribution Of 'Alalā Seed Retention Time, Camilla Moses Dec 2020

The Importance Of Experiment Replication In Understanding Distribution Of 'Alalā Seed Retention Time, Camilla Moses

Fall Student Research Symposium 2020

Hawaiian forests have suffered damages from climate change, introduced plants, and introduced animals that trample or graze on the native vegetation. The 'Alalā, a native Hawaiian bird that is being reintroduced from captivity, is a disperser of native plants and can facilitate the restoration of native vegetation in Hawaiian forests. If the seed retention time and the flight paths of the 'Alalā are known, we can estimate the distribution of the seeds they disperse and see the effect the species has on forest restoration. In this study, the seed retention time of the 'Alalā is predicted from body mass using …

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