A5069012047- Amphibian and Reptile Biology
- Animal Behavior and Reproduction
- Pesticide Exposure and Toxicity
- Environmental Toxicology and Ecotoxicology
- Marine animal studies overview
- Insect and Pesticide Research
- Arctic and Antarctic ice dynamics
- Primate Behavior and Ecology
- Meat and Animal Product Quality
- Identification and Quantification in Food
- Animal Ecology and Behavior Studies
- Fatty Acid Research and Health
- Neurobiology and Insect Physiology Research
- Pesticide and Herbicide Environmental Studies
- Aquaculture disease management and microbiota
- Bat Biology and Ecology Studies
Duquesne University
2018-2022
Moravian University
2021-2022
University of North Carolina Wilmington
2012
Abstract Blubber, a specialized form of subdermal adipose tissue, surrounds marine mammal bodies. Typically, tissue is perfused by capillaries but information on blubber vascularization lacking. This study's goals were to: 1) describe and compare the microvasculature (capillaries, microarterioles, microvenules) across odontocete species; 2) to tissue; 3) examine relationships between blubber's lipid composition its microvasculature. Percent microvascularity, distribution, branching pattern,...
Despite regulations and improved design, pesticides remain ubiquitous in the environment at relatively low, trace concentrations. To understand how prolonged exposure to pesticide concentrations impacts vertebrate brain development behavior, we raised larval amphibians (northern leopard frogs, Lithobates pipiens) 0, 1, or 10 μg/L of organophosphorus chlorpyrifos (CPF) from hatching metamorphosis. Tadpoles exposed 1 CPF, but not had changes relative mass, telencephalon shape, behavioral...
Widespread use of pesticides often contaminates natural habitats, exposing nontarget organisms to that were designed control pest populations. Even low levels can affect aquatic communities both directly and indirectly. Previous work has shown trace amounts the pesticide chlorpyrifos altered tadpole morphology neurodevelopment in artificial ponds (mesocosms). To determine whether effects resulted from direct exposure or disruption food web due a pesticide-induced decline zooplankton, we...
Gladwyn Kingsley Noble was the first investigator to collectively examine courtship glands and correlate their function tail-straddling walk in plethodontid salamanders. While mental caudal have received majority of attention since Noble's seminal work, described other from Eurycea bislineata that were putatively involved little or no (e.g., at temporal regions heads males). Previous studies demonstrated males enlarge during mating season some indicated enlargement because previously glands;...
Exposure to stressors and elevation of glucocorticoid hormones such as corticosterone (CORT) has widespread effects on vertebrate brain development. Previous studies have shown that exposure environmental alters larval amphibian morphology behavior, yet the CORT are still unknown. We exposed prometamorphic Northern Leopard Frog (Lithobates pipiens (Schreber, 1782)) tadpoles for 7 days a concentration exogenous (45.56 μg/L) produced physiologically relevant increases in plasma CORT. This...
Abstract Plethodontid salamanders possess numerous courtship glands. Previous studies have shown that the glands are more prominent in male individuals than females, and often experience periods of atrophy hypertrophy throughout year correlate to nonmating mating seasons, respectively. We sampled female Eurycea bislineata test hypothesis external nasal External paired, branched tubular extend from excretory ducts dorsal nares terminal secretory units posterior eyes. found stain/react...