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Articles 1 - 6 of 6
Full-Text Articles in Biology
Guano Among Bat Species From Two Regions Shows Influence Of Geography And Diet On Bacterial Community, Rahma Ahmed, Thomas Mcelroy, Shannon Whitney, Lydia Moore
Guano Among Bat Species From Two Regions Shows Influence Of Geography And Diet On Bacterial Community, Rahma Ahmed, Thomas Mcelroy, Shannon Whitney, Lydia Moore
Symposium of Student Scholars
Studies of bat guano have shown that the diversity and structure of associated microbial communities can be related to factors such as host phylogeny, life history and reproductive stage, geography, and diet. Many insectivorous bat species in the southeastern U.S. have generalist diets that may shift seasonally to take advantage of abundant prey species or maximize caloric intake. Seasonal shifts in prey availability or consumption should be reflected in a guano microbiome change. We also expected to detect distinct guano microbiomes within species. Within species, distinct microbial communities related to geography, and finally life history and reproductive stage. We compared …
Insect Availability And Parental Care Behavior In A Common Bird, Cole Bourque
Insect Availability And Parental Care Behavior In A Common Bird, Cole Bourque
Symposium of Student Scholars
Populations of aerially insectivorous birds are declining throughout North America. Urbanization may indirectly contribute to this decline through its negative effects on populations of insects, an important food source in insectivores' diets, where low insect availability may be especially challenging for birds during breeding. How fluctuations in insect populations impact various species at higher trophic levels is an important area of current study for future conservation biology. Here, we examine whether nestling provisioning, brooding and guarding behaviors in a breeding bird—the European starling (Sturnus vulgaris)—may be altered depending on the relative insect availability in the environment. We found …
Characterization Of Caenorhabditis Elegans F07a5.4, Human Ortholog Of Olfactomedin 1, Sade K. Thomas, Karunambigai Kalichamy, Martin Hudson
Characterization Of Caenorhabditis Elegans F07a5.4, Human Ortholog Of Olfactomedin 1, Sade K. Thomas, Karunambigai Kalichamy, Martin Hudson
Symposium of Student Scholars
Accurate control of nervous system development is critical for normal brain patterning, and defects in this process can lead to neurological disorders such as schizophrenia and Autism Spectrum Disorder. The transcription factor neurogenin is necessary for the development of neural subtypes and is deeply conserved across species. However, the transcriptional targets of neurogenin are poorly understood, creating an imperative for further study. We have used the nematode Caenorhabditis elegans as a model to better understand ngn-1/neurogenin function. Previous work from our lab revealed that ngn-1 plays a role in nerve ring architecture, and neural cell fate specification. In addition, …
New Ant In The Big City: Known Natural History Of Lasius Cf. Emarginatus In Its Native Range And Potential Impacts Of Recent Us Introduction, Samantha M. Kennett, Clint A. Penick
New Ant In The Big City: Known Natural History Of Lasius Cf. Emarginatus In Its Native Range And Potential Impacts Of Recent Us Introduction, Samantha M. Kennett, Clint A. Penick
Symposium of Student Scholars
New York City has been the site of introduction for some of North America’s most damaging invasive pests, from chestnut blight to the Asian long-horned beetle. Despite these cautionary examples, there has been no formal tracking of a newly introduced ant species, Lasius cf. emarginatus, which has quickly become among the most common species in the city. Sometime between the first ant diversity survey of New York City in 2006 and the second in 2011,L. cf. emarginatus was introduced and quickly became established in the most urban habitats with the highest human contact. In contrast to other urban …
Pseudomonas Aeruginosa Evades Predation By Myxococcus Xanthus, Sarah Joie Beauvais
Pseudomonas Aeruginosa Evades Predation By Myxococcus Xanthus, Sarah Joie Beauvais
Symposium of Student Scholars
Multidrug-resistant Pseudomonas aeruginosa causes an estimated 32,600 hospital-acquired-infections and 2,700 estimated deaths in the US in 2017(CDC). Myxococcus xanthus is a strain of myxobacteria that preys on Pseudomonas sp, through the production of antibiotics and digestive enzymes. In previous experiments, P. aeruginosa evaded predation, through an unknown mechanism. Using confocal microscopy, this research investigates if quorum sensing, a cell density-dependent signaling pathway, could be a factor in motility and evasion of M. xanthus. Liquid suspensions of log-phase PA01 were dyed with two fluorescent dyes: SYTO 9 for marking live cells and Propidium iodide (PI) for marking dead cells. …
Microbial Diversity And Community Structure In Sediments Associated With The Seagrass (Thallassia Testudinum) In Apalachicola Bay, Florida, Rahma Ahmed, Thomas Mcelroy, Troy Mutchler
Microbial Diversity And Community Structure In Sediments Associated With The Seagrass (Thallassia Testudinum) In Apalachicola Bay, Florida, Rahma Ahmed, Thomas Mcelroy, Troy Mutchler
Symposium of Student Scholars
Seagrass is an angiosperm which provides many ecosystem services in coastal areas, such as providing food, shelter and nurseries for many species, and decreasing the impact of waves on shorelines. A global assessment reported that 29% of known seagrass meadows are in a state of decline due to the effects of human activity. Seagrass is commonly found in shallow marine waters where they form meadows containing a microbiome that plays an important role in providing nutrients for seagrass growth, though little is known about the microorganisms within the seagrass meadow sediments. Our project collected sediments from seagrass meadows and adjacent …