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High major histocompatibility complex class I polymorphism despite bottlenecks in wild and domesticated populations of the zebra finch (Taeniopygia guttata)
(2015-12-01)
Background
Two subspecies of zebra finch, Taeniopygia guttata castanotis and T. g. guttata are native to Australia and the Lesser Sunda Islands, respectively. The Australian subspecies has been domesticated and is now an ...
THE EFFECTS OF ZOOPLANKTON DISPERSAL ON COMMUNITY ASSEMBLY OF TEMPORARY PONDS
(East Carolina University, 2015-12-10)
The dispersal of individuals among habitat patches is thought to have an important effect on ecological communities as it can influence both population dynamics and community assembly. Though much work on dispersal has ...
A depauperate immune repertoire precedes evolution of sociality in bees
(2015-04-24)
Background
Sociality has many rewards, but can also be dangerous, as high population density and low genetic diversity, common in social insects, is ideal for parasite transmission. Despite this risk, honeybees and other ...
RESPONSES OF COASTAL NESTING KING RAILS (RALLUS ELEGANS) TO ENVIRONMENTAL THREATS OF RISING WATER AND TEMPERATURE
(East Carolina University, 2015-12-09)
King rail (Rallus elegans) populations are experiencing long-term declines attributable to habitat loss. Sparse breeding populations in coastal areas may represent the last strongholds for this species, but climate change ...
Risk assessment based on indirect predation cues: revisiting fine-grained variation
(2015-10)
To adaptively express inducible defenses, prey must gauge risk based on indirect cues of predation. However, the information contained in indirect cues that enable prey to fine-tune their phenotypes to variation in risk ...
Nuclear Progestin Receptor (Pgr) Knockouts in Zebrafish Demonstrate Role for Pgr in Ovulation but Not in Rapid Non-Genomic Steroid Mediated Meiosis Resumption
(2015-03)
Progestins, progesterone derivatives, are the most critical signaling steroid for initiating final oocyte maturation (FOM) and ovulation, in order to advance fully-grown immature oocytes to become fertilizable eggs in basal ...
Assessing Morphological Variability in Silversides along the Mid-Atlantic Bight
(2015)
Inland silversides (Menidia beryllina) and Atlantic silversides (Menidia menidia) are ubiquitous fishes in the estuaries on the east coast of the United States. These species are very similar in appearance and may share ...
Epigenetic Effect of Modified Diet and Exercise on Drosophila Metabolic Phenotype and Cardiovascular Health
(2015-04)
Obesity is a growing world-wide epidemic. Overweight populations are prone to a variety of morbid conditions including diabetes type 2, cardiovascular diseases, and cancers. The catastrophic increase in obesity rates, which ...
THE EFFECT OF CHANGES IN SODIUM CONCENTRATIONS ON MITOCHONDRIA
(2015-05-01)
Atherosclerosis, hardening of the arteries, is the major cause of stroke, peripheral artery disease and heart attack. . Overproduction of superoxide anions in mitochondria can give rise to atherosclerosis. Superoxide anions ...
Hydrogeomorphology and Horizontal Movement of Juncus roemerianus
(East Carolina University, 2015)
Juncus roemerianus, black needlerush, is common in high marshes and occasionally in low marshes along the Mid-Atlantic and southern USA. Previous work found that J. roemerianus patches remained relatively stable in the ...