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Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Pilfering Passerines? Inter-Class Competition: A New Direction In Foraging Ecology, Shannon Gillen
Pilfering Passerines? Inter-Class Competition: A New Direction In Foraging Ecology, Shannon Gillen
Masters Theses, 2020-current
Life in the epigeal layer below leaf litterfall often goes unexplored. Shrews (Soricidae, 1910) have foraged in this microhabitat for millions of years, carving out an existence in harsh habitats around the world, ranging from the tropics to subarctic boreal tundra. Two shrew species that inhabit the Shenandoah Valley of Virginia, the least shrew (Cryptotis parva) and northern short-tailed shrew (Blarina brevicauda), were the focus of this study. Shrews make epigeal foraging trails while they continually forage for food, and caching is a way to save this food for times of low and sporadic food availability. …
Morpho: Expectations & Mutations, Lynda Bostrom
Morpho: Expectations & Mutations, Lynda Bostrom
Masters Theses, 2010-2019
Morpho: Expectations & Mutations is a written document accompanying the culmination of my three years painting at a graduate level. The result of which is an autobiographical body of work navigating the tension of being a human with an invisible disease, while straining to understand Western societal constructs of women. I simultaneously reject these fairy tales as a standard recipe for happiness, yet identify with its visual language that is rooted in the vernacular of my generation. Redefining the elements I reject or embrace helps me to look beyond the boundaries of these constructs, and adopt an attitude of curiosity …
Searching For Sex Differences In Snake Skin, Sydney E. Ashton
Searching For Sex Differences In Snake Skin, Sydney E. Ashton
Senior Honors Projects, 2010-2019
The production of many secondary sexual signals, including pheromones, is controlled by sex hormone action at the sites of signal synthesis. The red-garter snake (Thamnophis sirtalis parietalis) is an ideal vertebrate for studying the interaction between steroids and sexual signals: males exclusively rely on skin-based female pheromones during courtship, and pheromone composition is augmented by treatment with sex steroids (e.g., males produce female pheromone if implanted with estrogen). But how do steroid hormones promote pheromone expression at the molecular level in snake skin? Feminizing effects of estrogens on sexual signals are known to result from activation of estrogen …
Comparative Analysis Of Anti-Bd Bacteria From Six Malagasy Frog Species Of Ranomafana National Park, Kelsey Savage
Comparative Analysis Of Anti-Bd Bacteria From Six Malagasy Frog Species Of Ranomafana National Park, Kelsey Savage
Senior Honors Projects, 2010-2019
As Malagasy amphibians are facing an impending extinction crisis from the lethal skin fungus Batrachochytrium dendrobatidis (Bd), it has become imperative to proactively mitigate the threat. Bd sporangia develop in the skin of infected amphibians and cause the skin to thicken, leading to ionic imbalance and eventual heart failure. It has been shown that certain bacterial species are able to inhibit Bd growth on amphibians by producing antifungal metabolites. Community-based probiotics are one approach used to combat chytridomycosis by inoculating an environment with Bd-inhibitory bacteria so that many amphibian species are treated at once. With this method, it is important …