Search
Now showing items 71-80 of 93
Fishing For The Evolutionary Bases Of Female Ornamentation
(East Carolina University, 2015)
Sexual dimorphism, or phenotypic differentiation of the sexes, is widespread amongst animals. It is understood mainly in the context of sexual selection, i.e. selection on mating success, with such selection typically ...
REPRODUCTIVE ISOLATION AND MIMETIC DIVERGENCE IN THE POISON FROG RANITOMEYA IMITATOR
(East Carolina University, 2014)
Understanding the process of speciation requires examination of various stages of its progress. This work focuses on the early stages of population divergence, where populations of a single species may show varying levels ...
A QUALITATIVE STUDY OF MICROBES IN SERPENTINITE-HOSTED SUBSURFACE ENVIRONMENTS
(East Carolina University, 1/13/16)
Over the last two decades, serpentinizing environments have been studied with regards to the biogeochemistry of these habitats, but significantly less is known about the microbiology within these environments. Serpentinization ...
Determining the Chemical Structure of Brucebactin: The Sole Complex Siderophore Utilized by the Pathogenic Bacterium Brucella Abortus
(East Carolina University, 1/13/16)
Brucellosis is a zoonotic bacterial disease that affects many around the world. There are over half a million new cases each year and prevalence rates in some areas of the world exceed 10 new cases per 100,000 in the ...
The Effects of Crude Oil and Chemical Dispersant Exposure on Danio rerio (zebrafish) Embryonic Development
(East Carolina University, 2014)
Crude oil has been shown to cause defects in cardiovascular development in a variety of teleost species. We used the zebrafish, Danio rerio as a model to test the effects of oil and dispersant on cardiac development and ...
Spatial Ecology and Seasonal Habitat Use of the King Rail (Rallus elegans) along the Atlantic Coast
(East Carolina University, 2014)
TThe King Rail (Rallus elegans) continues to experience population declines throughout its range. Due to its secretive nature and occupancy of densely vegetated marshes, little is known about the behavior and ecology of ...
Responses of Leaf Litter Breakdown Rates and Microbial Enzyme Activity to Salinity in North Carolina Wetlands
(East Carolina University, 2014)
Sea-level rise and human activities are causing the increase of salinity in coastal freshwater wetlands. Increased salinity in some wetlands has been found to accelerate leaf litter decomposition, an important driver of ...
DETECTION AND DISTRIBUTION OF THE AMPHIBIAN FUNGAL DISEASE CHYTRIDIOMYCOSIS IN PERUVIAN AMPHIBIANS
(East Carolina University, 2012)
Chytridiomycosis is an amphibian disease caused by the fungal pathogen Batrachochytrium dendrobatidis (Bd;Longcore et al. 1999). This disease has been identified by the Amphibian Conservation Action Plan as one of the main ...
Effects of Nicotine on Caenorhabditis elegans survival, reproduction, and gene expressions : Development of an Invertebrate Animal Model for Drugs of Abuse
(East Carolina University, 2011)
Although much is known about the addictive effects of nicotine, the molecular mechanisms of nicotine-induced effects remain largely unclear. Specifically, little is known about the effects of nicotine on gene expression, ...
Drosophila Ctf4 is essential for genome stability and normal cell cycle progression
(East Carolina University, 2010)
Proper DNA replication and well-timed cell cycle progression are vital to the normal functioning of a cell. Precise coordination between these mechanisms' constituent proteins ensures their processivity while safeguarding ...