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Density, Shell Use And Species Composition Of Juvenile Fiddler Crabs (Uca Spp.) At Low And High Impact Salt Marshes On Georgia Barrier Islands, Michelle D. Carlson

College of Graduate Studies: Theses & Dissertations

Coastal wetlands offer refuge for juveniles of many species, with protection often coming in the form of dense vegetation. Human impacts have led to a 67% loss of coastal wetlands worldwide in the past 300 years, thus decreasing available refuges. There are no studies that show what affect this has on fiddler crabs (Uca spp.), a key species in salt marsh habitats. The present study looks at how human impacts are affecting juvenile fiddler crab densities, shell use, and species compositions. This study was conducted at 3 low and 3 high impact sites on Tybee and Skidaway Island, Georgia. Six …

Evaluating Restoration Potential Of An Endangered Legume, Baptisia Arachnifera: Shade & Litter Effects On Early Life Stages, Timothy John Estep

College of Graduate Studies: Theses & Dissertations

Baptisia arachnifera, hairy rattleweed, is a federally endangered, herbaceous, legume endemic to Wayne and Brantley Counties in Georgia. The species has declined by 89% in the past 20 years. Therefore I examined the early life stages of the species for weevil predation, fungus infection, and germination; information used to help prevent the species extinction. Seed pods of Baptisia arachnifera from six sites were examined for weevil predation and fungal infestation. Germination was examined under greenhouse conditions. One site had intense weevil predation, fungal infection, and reduced germination compared to other sites. Over 62% of seeds germinated within the greenhouse. To …

Investigations Of The Tribological Effects Of Engine Oil Dilution By Vegetable And Animal Fat Feedstock Biodiesel On Selected Surfaces, Sultana Mahbuba Shanta

College of Graduate Studies: Theses & Dissertations

Biodiesels have become attractive alternative fuel to replace traditional fossil fuels. Biodiesels can be used in diesel engines with no major modification, but its use leads to some degree of engine oil dilution because of biodiesel leaking and scrapping to engine oil pan. Biodiesels can be made from vegetable and animal fat feedstocks. Therefore, the fatty acid methyl ester components of biodiesel may vary upon these sources of feedstock. In this thesis work, engine oil is diluted with vegetable (canola oil, peanut oil and soybean oil biodiesel) and animal (chicken fat) feedstock biodiesels at known percentages and these mixtures are …

The George-Anne, Georgia Southern University

The George-Anne

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The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

Multiple Paternity Of Caretta Caretta Within The Northwestern Atlantic Ocean Population On Wassaw Island, Ga, Jacob Lasala

College of Graduate Studies: Theses & Dissertations

Characterizing the mating system of a species is important for understanding demography and population dynamics and can contribute information to conservation efforts. Mating systems can impact the ecology, evolution, effective population size and genetic variability of a species. Polyandry, resulting in multiple paternity can influence the maintenance of genetic variation within a population. Within Testudines, the frequency of multiple paternity varies extensively among species (0-100% of nests). Previous studies on the loggerhead turtle (Caretta caretta) have shown that within the large management unit of peninsular Florida, multiple paternity occurs in approximately 30% of nests. This study examines nests from the …

The George-Anne, Georgia Southern University

The George-Anne

• Student Remembered
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The George-Anne, Georgia Southern University

The George-Anne

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The George-Anne, Georgia Southern University

The George-Anne

• GSU Considers Constructing Arena
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The George-Anne, Georgia Southern University

The George-Anne

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Mattie Annette Hall

African American Funeral Programs

No abstract provided.

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

The George-Anne, Georgia Southern University

The George-Anne

• GSU Considers Legal Action Against Athens Christian
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• Event Makes Model Dorm Room go 'Up in Flames'
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F2f In The Age Of Im: Term Paper Clinic At West Virginia University Libraries, Kelly Diamond, Alyssa Wright, Noël Kopriva

Georgia International Conference on Information Literacy

See presentation description.

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

Background Investigation Of Volunteers And Contractors - 2061

Human Resources Policies

To establish uniform procedures for screening and engaging university volunteers and contractors, to reduce the risk and protect the interests of the university.

Genotypic And Phenotypic Variation Of The Florida Scrub Lizard (Sceloporus Woodi), Derek B. Tucker

College of Graduate Studies: Theses & Dissertations

In my 1st chapter I investigate the phenotypic variation of the Florida scrub lizard by examining sprinting and jumping ability. These are key performance measures that have been widely studied in vertebrates. The vast majority of these studies, however, use methodologies that lack ecological context by failing to consider the complex habitats many animals live in. Here, I filmed running lizards to address how behavioral and performance strategies change as lizards approach obstacles of varying height. Obstacle size had a significant influence on both behavior (e.g. obstacle crossing strategy, intermittent locomotion) and performance (e.g. sprint speed, jump distance). Researchers should …

The George-Anne, Georgia Southern University

The George-Anne

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Instructors' Decisions That Integrate Inquiry Teaching Into Undergraduate Courses: How Do I Make This Fit?, Iris Alkaher, Erin Dolan

International Journal for the Scholarship of Teaching & Learning

In this qualitative study, we describe and characterize the pedagogical decisions that three college instructors made to mitigate challenges they faced as they taught by inquiry, as well as the rationale for their decisions and their perceptions of the efficacy of their decisions. We found that instructors made a range of decisions, including reorganizing course content and structure, adding more opportunities for and models of inquiry practice, adding more opportunities for feedback and assessment, and enhancing scaffolding of the inquiry. Notably, single instructional decisions had the capacity to mitigate multiple challenges. The instructors were satisfied with many of their decisions, …

Quantifying Environmental Maternal Effects In The Invasive Plant, Silene Latifolia, Juliette T. Jordan

College of Graduate Studies: Theses & Dissertations

One of the over-arching goals of biology is to determine the relative importance of nature versus nurture. Nature versus nurture reflects the relative contribution of an individual's genetic makeup and environment to its growth and reproduction. In addition, the environment experienced by an individual's mother can also indirectly affect the performance of her offspring - these are environmental maternal effects (EME). For example, if a mother experiences a high quality environment, her offspring may respond with enhanced growth. We expect natural variation in habitat quality to lead to high levels of EME since mothers will vary in the environment they …

Images Of Experience: Decolonizing Medicine, Colleen Hill Patton

College of Graduate Studies: Theses & Dissertations

The experiences of illness and trauma are vivid examples of a discontinuity that separates us from those that surround us. In seeking treatment, we enter a very foreign culture, regardless of how long or of how serious our injury or illness. We are disconnected from our personal and private lives and are placed within a cultural group bearing a separate set of beliefs and practices. Practitioners of medicine make up a distinct culture. This culture is formed as a site of discontinuity in a large part through the experiences of medical education from that of the experiences of the one …

House Fly (Musca Domestica L.) Temporal And Spatial Immune Response To Streptococcus Pyogenes And Salmonella Typhimurium: Role Of Pathogen Density In Bacterial Fate, Persistence And Transmission, Rabecca Chifanzwa

College of Graduate Studies: Theses & Dissertations

House flies (Musca domestica L), feed and breed in decomposing organic waste and therefore are constantly in contact with different species of microorganisms. Because house flies live in close proximity to human and animal habitats, they pose a danger of transmitting pathogenic microorganisms from diseased sources to new environments. To elucidate pathogen vector potential of house flies, this study investigated dose-dependent survivability of GFPexpressing Streptococcus pyogenes and Salmonella typhimurium SR11 within the fly alimentary canal both spatially via epifluorescence microscopy and quantitatively via culture-recovery. Adult house flies were fed known amounts of bacteria (high or low dose), and were dissected …

Effects Of Sediment On Growth And Survival Of Various Juvenile Morphologies Of The Scleractinian Cora, Oculina Arbuscula (Verrill), Lauren Mallory Divine

College of Graduate Studies: Theses & Dissertations

Sedimentation can play an important role in shaping tropical and temperate benthic marine communities. Here, I quantified sedimentation rates on a hard-bottom reef in the South Atlantic Bight (SAB) off the coast of Georgia, USA and assessed its effects on a conspicuous member of the benthic community: the scleractinian coral, Oculina arbuscula. I addressed the predictions that: 1) inorganic and organic sedimentation rates vary in relation to wind speed and wave height in the SAB, 2) the ability of juvenile O. arbuscula to shed sediment depends on skeletal morphology, and 3) inorganic sedimentation reduces growth and survival of encrusting O. …

The Ontogeny Of Escape Responses And Locomotor Performance In Sceloporus Woodi, Reed B. Stiller

College of Graduate Studies: Theses & Dissertations

Predator prey interactions have the potential to shape patterns of natural selection. For prey, avoiding detection by predators is of primary importance; however prey species risk detection by movement. Other than crypsis, prey species also use secondary defenses when detected by a predator. The most common secondary defense is flight. Flight initiation distance describes the distance between a prey item and a predator where the benefits of fleeing outweigh the benefits of remaining stationary. There are many factors that influence flight initiation distance including ontogenetic stage, ability to escape, and the degree of crypsis. Of these, the ontogenetic effects on …

Molecular And Immunohistochemical Identification Of A Sodium Hydrogen Exchanger-2c (Nhe2c) Paralog In The Gills Of Marine Longhorn Sculpin (Myoxocephalus Octodecemspinosus), Demi Brett Rabeneck

College of Graduate Studies: Theses & Dissertations

Sodium hydrogen exchanger proteins (NHEs) are members of the cation proton antiporter superfamily (CPA) and are thought to function in fish for maintaining physiological ion concentrations and acid-base balances by excreting excess H+ ions from the body in exchange for Na+ ions. There are many more types of these proteins in teleost fish than in mammals due to putative genome duplication. This study describes a new form of NHE2 in the gills of marine longhorn sculpin, Myoxocephalus octodecemspinosus, designated NHE2c. Sequencing revealed that the NHE2c nucleotide-coding region transcribes a peptide 795 amino acids in length with an estimated molecular weight …

Effects Of Training And Testosterone On Muscle-Fiber Types And Locomotor Performance In Male Six-Lined Racerunners (Aspidoscelis Sexlineata), Jennifer L. O'Conner, Lance D. Mcbrayer, Timothy E. Higham, Jerry F. Husak, Ignacio T. Moore, David C. Rostal

Biology: Faculty Publications

Testosterone (T) is thought to affect a variety of traits important for fitness, including coloration, the size of sexual ornaments, aggression, and locomotor performance. Here, we investigated the effects of experimentally elevated T and locomotor training on muscle physiology and running performance in a nonterritorial male lizard species (Aspidoscelis sexlineata). Additionally, several morphological attributes were quantified to examine other characters that are likely affected by T and/or a training regimen. Neither training alone nor training with T supplementation resulted in increased locomotor performance. Instead, we found that T and training resulted in a decrease in each of three …

The George-Anne, Georgia Southern University

The George-Anne

• Restaurant Options to Change for Statesboro
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• Chief Russell Aims to Maintain Safe Campus
• Study Reveals Wage Gap Still Exists in Workplace
• Sorority Hosts Candlelight Vigil for Recent Graduate
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