Browsing by Department "Biological Sciences"
Now showing items 121-140 of 301
Factors affecting safe-guarding of the federally endangered Schwalbea americana L. (Orobanchaceae)
(2016-12-19)
Schwalbea americana L. (American chaffseed) is a federally endangered hemi-parasitic plant (USFWS 1992). Its tendency to persist with limited recruitment and threats to its habitat make it vulnerable to extirpation. ...
Feathers at a fine scale
(2005-08-15)
In 1668, Antoine von Leeuwenhoek improved the crude microscopes that were being produced in Europe to better study small biological objects (Madigan et al. 1997). Although von Leeuwenhoek 's microscope revolutionized ...
Female Mating Preference and Reproductive Success in Eastern Bluebirds: Interacting Effects of Plumage Coloration and Genetic Compatibility
(2009-12-18)
In my dissertation, I used a combination of aviary-based experiments, field experiments and correlational research to fully explore the importance of mate choice and environmental heterogeneity on reproductive success in ...
Floral Biology of Alabama’s Spigelia species (Family Loganiaceae)
(2021-05-04)
This thesis examines the pollination ecology of Alabama species of Spigelia. Alabama currently has two species that are under threat of extinction: S. gentianoides and S. alabamensis. The U.S. Fish and Wildlife Service has ...
A Floristic Study of Weaver Creek Wetland, Santa Rosa County, Florida
(2008-05-15)
Steepheads (streams that originate from the bases of valley walls) create a unique freshwater wetland habitat. Currently, steepheads are known to exist only in the southeastern United States along the Gulf Coastal Plain. ...
Food restriction during breeding and development and its implications for reproductive trade-offs in zebra finches
(2024-03-28)
Breeding has a high energy requirement. Common stressors such as food restriction introduced during breeding can stimulate reproductive trade-offs by requiring more energy than the amount of energy available in the environment ...
Foraging and Spatial Ecology of Red Wolves (Canis rufus) in Northeastern North Carolina
(2011-03-30)
Red wolves (Canis rufus) are critically endangered, with <150 individuals in the only wild population. I collected scats (fecal deposits) of red wolves from that population for 2 consecutive pup-rearing seasons. Packs ...
Functional and Genetic Analysis of Plant Transcription Factors Involved in the Plant Growth Under Various Environmental Conditions
(2008-05-15)
Arabidopsis serves as a model system for the plant molecular biology. Many biotic and abiotic factors affect plant growth from seed germination to mature plant growth. External factors studied in our research include ...
Functional Durability Of A Quartz Crystal Microbalance Sensor For The Rapid Detection Of Salmonella In Liquids From Poultry Packaging
(2000-08-15)
Foodborne disease causes an estimated 4 to 76 million cases of food poisoning with 5,000 associated deaths annually in the United States at a cost of $6.5 –34.9 billion. In poultry products, Salmonella is the most common ...
Functional Genomics of Gaba Metabolism in Yeast Thermotolerance
(2008-05-15)
?-Aminobutyric acid (GABA) is a ubiquitous non-protein amino acid which accumulates rapidly in response to diverse environmental stresses. The GABA shunt is a pathway involving three enzymes, glutamate decarboxylase (GAD, ...
Functional Genomics of Soil Bacteria using a Metagenomics Approach
(2012-07-31)
Soil microbial communities are an abundant resource for natural product discovery. Traditional methods such as cultivation of soil microorganisms from soil under laboratory conditions have lead to discovery of new compounds ...
Functional Identification and Characterization of an Arabidopsis thaliana Gene Involved in Vitamin B6 Biosynthesis
(2005-12-15)
Vitamin B6 (pyridoxine) is a biological coenzyme
seemingly involved in environmental stress
tolerance and an important vitamin in human
nutrition produced in plants as well as fungi and
bacteria. A series ...
Functional study of the Wnt signaling network that coordinates early anterior-posterior and dorsal-ventral axis specification and patterning in the sea urchin embryo
(2020-05-18)
The establishment and patterning of the different embryonic body axes are crucial events in early development of any embryo. Anterior-posterior (AP) and dorsal-ventral (DV) axis specification and patterning are fundamental ...
Gene flow, morphology, and taxonomic revision of cave-obligate Hesperochernes pseudoscorpions
(2022-05-01)
Pseudoscorpions are small predatory arthropods that are found in surface and subterranean habitats. Subterranean habitats such as caves tend to harbor pseudoscorpion species with highly restricted gene flow and high degrees ...
Genomic Analyses of Hybridization and Speciation in Macaques
(2023-05-01)
Speciation, the origin of species, is a process fundamental to producing the current diversity of life, and has been a central subject of evolutionary biology for the past century. Hybridization, the mating of individuals ...
Geographic Variation in the Yellow-throated Warbler (Dendroica dominica)
(2007-12-15)
I examined how variation within the yellow-throated warbler (Dendroica dominica) relates to geography. The yellow-throated warbler is a common neotropical migrant with a breeding range confined to the southeastern United ...
Geometric Morphometrics and Phylogeny of the Catfish genus Mystus Scopoli (Siluriformes:Bagridae) and North American Cyprinids (Cypriniformes)
(2013-12-11)
Understanding the evolution of organismal form is a primary concern of comparative biology, and inferring the phylogenetic history of shape change is, therefore, a central concern. Shape is one of the most important and ...
GlpR Regulates the Glyoxylate Pathway and Virulence Factor Production by Pseudomonas aeruginosa
(2012-05-10)
Pseudomonas aeruginosa infections are the leading cause of morbidity and mortality for cystic fibrosis (CF) patients. P. aeruginosa establishes life-long infection in the CF lung by utilizing various adaptation strategies ...
Habitat Associations Among Bats on Redstone Arsenal, Alabama
(2008-12-15)
As forests become more fragmented, more research about use of forests by bats at the landscape level is needed. I employed 2 methods to investigate use of forest by foraging bats; mist-net surveys and ultrasonic-detection ...
Habitat Associations and Predictive Presence Modeling for Plethodontid Eurycea hillisi in West Georgia
(2018-05-16)
The purpose of this study was to identify habitat associations of Eurycea hillisi and use those characteristics to develop a predictive model. In Chapter 1, I gave an overview of the taxonomic history of the species and ...