Browsing Biology by Title
Now showing items 457-476 of 513
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Tactical reproductive parasitism via larval cannibalism in Peruvian poison frogs
(East Carolina University, 2009-04-23)We report an unusual example of reproductive parasitism in amphibians. Dendrobates variabi- lis, an Amazonian poison frog, oviposits at the surface of the water in small pools in plants and deposits tadpoles within the ... -
Tadpole Begging Behavior And Parent-Offspring Interactions In The Mimic Poison Frog
(East Carolina University, 2015)Studies on offspring begging behavior have focused on whether the behavior communicates offspring need and guides parental food provisioning in the context of honest signaling theory. However, despite the plethora of ... -
Targeting aberrant signaling in the EGFR1/HER2/PI3K/PTEN/Akt/mTORC1/GSK-3 pathway : Novel therapeutic interventions in breast cancer
(East Carolina University, 2015)Breast cancer is attributed to being the second most deadly cancer in American women. Approximately 1 in 8 women will be diagnosed with breast cancer during her lifetime, and prognosis is dependent upon the genetic make-up ... -
TEMPERATURE, RESOURCE INPUT, AND STANDING GENETIC VARIATION AFFECT PREDATOR RESPONSES OF PHYSA ACUTA
(East Carolina University, 2019-04-26)In urban areas, features such as high percentages of impervious ground cover, patchiness, and storm water runoff can lead to increases in temperature and external nutrient input into aquatic systems. Such factors can lead ... -
TEMPORAL AND SPATIAL GRADIENTS IN PHYTOPLANKTON PIGMENTS IN THE TAR-PAMLICO RIVER ESTUARY
(East Carolina University, 2016-04-28)Phytoplankton form the base of most aquatic food webs, and their biomass and the composition of their communities directly impact upper trophic levels. Phytoplankton chlorophyll a concentrations in aquatic environments ... -
TGF-β1-directed Smad3 stimulates proliferation and alters morphology of rat primary vascular smooth muscle cells
(East Carolina University, 2017-05-05)With cardiovascular disease (CVD) being the leading cause of morbidity and death in the United States and worldwide (2, 28), studying the mechanisms of these pathologies is imperative. Recent studies have shown that a ... -
THE ANTAGONISTIC AND MUTUALISTIC PLANT-INSECT INTERACTIONS OF PITCHER’S THISTLE (CIRSIUM PITCHERI [TORR. EX EAT.] TORR. & A. GRAY, ASTERACEAE), A FEDERALLY THREATENED GREAT LAKES DUNE AND COBBLE SHORE ENDEMIC PLANT
(East Carolina University, 2016-05-04)Biological control is one of the tools used for integrated pest management of invasive plant species but it is not without risks to native plants. I researched the non-target impacts of the biological control agent, the ... -
The CDF-type metal efflux protein EmfA is essential for Brucella abortus 2308 resistance to manganese toxicity and is a critical virulence determinant in experimentally-infected mice
(East Carolina University, 2019-05-13)Divalent cationic metals are important trace nutrients for all bacteria because metals serve as cofactors for proteins involved in numerous cellular functions. Despite the fact that metals play an essential role in bacterial ... -
The Direct and Indirect Impact of Sucralose on Immune Function
(East Carolina University, 2017-12-18)1, 6-dichloro-1, 6- dideoxy-[beta]-D-fructofuranosyl-4-chloro-4-deoxy -[alpha]-D-galactopyranoside, or Sucralose, is a highly popular NAS (Non-caloric artificial sweetener) used by millions across the globe for sweetening ... -
The Effect of Diet on Venom Gene Expression in Tetragnatha versicolor
(East Carolina University, 2017-12-01)Tetragnatha versicolor is an orb weaving spider that can be found throughout North America from Alaska to Nicaragua. This along with the fact the T. versicolor is a habitat generalist means that the species encounters a ... -
The effect of the Achilles tendon moment arm on knee joint contact force
(East Carolina University, 2016-04-29)Musculoskeletal (MSK) models are used extensively in the study of human movement. The validity of a given MSK model is affected by the architectural features of the system. The Achilles tendon moment arm is one important ... -
The Effect of Visual Queues on Social Status Formation and Mauthner Sensitivity in Zebrafish
(East Carolina University, 2017-04-27)Zebrafish of the TLN strain, a genetic variant of the Tüpfel Long-fin (TL) wild-type zebrafish that does not display the trademark striped scale pattern of wild-type zebrafish, but are instead pale, were tested through a ... -
The Effects of Benzoic Acid in C. elegans: Germ Cell Apoptosis
(East Carolina University, 2017-05-05)Benzoic acid is widely consumed by humans everyday through means of fruit juices, soft drinks, pickles, salad dressings and more. However, the health impact of long-term benzoic acid exposure remains largely unknown. This ... -
The effects of climate variability on the timing of ichthyoplankton ingress through Beaufort Inlet, NC, USA
(East Carolina University, 2019-04-30)Climate change has shifted the timing of seasons in many ecosystems worldwide. Species are responding to these shifting seasons with shifts of their own, both in space via migrations and in time via phenology. However, ... -
The Effects of Coal Ash on pH and Microbial Respiration in Neuse River Sediments
(East Carolina University, 2016-04-28)Coal combustion residuals are by-products of energy production resulting from the burning of coal. The coal combustion residuals, or simply coal ash, are then cleaned from the furnaces and added to water to form a thick ... -
The Effects Of Environmental Variation On Individual Variation
(East Carolina University, 2015)Despite general consensus among ecologists that variation is ubiquitous and important in nature, ecological experiments have historically focused on changes in mean response assuming a constant environment and interchangeable ... -
The Effects of Nicotine on Histone Modifications in Carnorhabditis Elegans
(2017-07-13)Early development stages have been known to be very susceptible to certain types of stress. Tobacco smoke is one of these major stresses that will affect them during this stage and can increase how likely they are to become ... -
The Effects of Pharmaceuticals and Personal Care Products (PPCPs) on Predator-Prey Dynamics
(East Carolina University, 2017-12-01)Predators impact community structure and stability by altering the abundance, distribution, and behavior of their prey and through the cascading effects that these changes have on other trophic levels. However, the effects ... -
The Effects of Pharmaceuticals and Personal Care Products on Mosquito Oviposition Site Selection
(East Carolina University, 2018-05-09)The products that humans use every day to shower, drink, prevent sickness, protect their crops, etc. are having an effect on the environment. Pharmaceuticals and personal care products, or PPCPs, have been becoming notable ... -
The effects of Salinity, Depth, and Turbidity on Submerged Aquatic Vegetation (SAV) abundance in Eastern North Carolina
(East Carolina University, 2021-05-03)The state of North Carolina is concerned about the loss of submerged aquatic vegetation (SAV), which is critical fish and wildlife habitat in low-salinity estuaries. Sentinel sites have been established by the East Carolina ...