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Full-Text Articles in Life Sciences
Age Status Effects On Female Silk Production And Male Courtship Response In Dolomedes Scriptus, Joseph Osborne
Age Status Effects On Female Silk Production And Male Courtship Response In Dolomedes Scriptus, Joseph Osborne
Student Scholar Showcase
Female Dolomedes scriptus, the striped fishing spider, serve as model organisms exhibiting pheromone production as a means of chemical signaling. Previous work has shown that male fishing spiders are responsive to female silk, and preferentially court in the presence of silk from mature virgins. In our research, we hypothesized that mature females produced larger quantities of silk than penultimate females in an attempt to elicit greater male mating response. Female spiders of both age statuses were kept for two days in a gridded tank. Sub-sampling of silk lines that crossed a random portion of the grid produced results signifying …
Co-Occurrence Of Manganese Oxidase Genes Indicates Lateral Transfer Between Classes Of Proteobacteria, Jacob Olichney
Co-Occurrence Of Manganese Oxidase Genes Indicates Lateral Transfer Between Classes Of Proteobacteria, Jacob Olichney
Student Scholar Showcase
Pseudomonas putida GB-1 is a model organism for the study of manganese oxidation in bacteria, however, the frequency of co-localization of multiple known and suspected manganese oxidizing proteins, as well as their occurrence between species, is unknown. Eight different genes isolated from known manganese oxidizing bacteria (MnxG, MopA, McoA, PputGB1_2552, PputGB1_2553, MoxA, MofA, and Bacillus MnxG) were tested individually using BioPython and BLAST (Basic Local Alignment Search Tool) on multiple genomic databases. BLAST searches had an expect value cutoff of 1e-50, limiting gene homologs to those with high sequence similarity. The abundance of homologous genes across classes of proteobacteria point …
Meta-Analysis Of Characteristics In Upper Missouri River Fishes: Prediction Of Invasiveness, Steph Purcell
Meta-Analysis Of Characteristics In Upper Missouri River Fishes: Prediction Of Invasiveness, Steph Purcell
UNO Student Research and Creative Activity Fair
Invasive species are often considered a global threat due to their association with biodiversity loss and novel diseases. The Missouri-Mississippi River Watershed, including the Missouri River Basin, is particularly vulnerable to invasive species because of low species diversity following historic glaciation events. Management of invasive species is imperative in this watershed but continues to be challenging in that there are over 100 invasive species currently present in this region. The goal of this project is to identify characteristics associated with successful invasions that may assist in developing management strategies to reduce the negative outcomes caused by the establishment of invasive …
Effects Of Rangeland Management On Milkweed Grazing And Monarch Conservation, Brittany Poynor
Effects Of Rangeland Management On Milkweed Grazing And Monarch Conservation, Brittany Poynor
UNO Student Research and Creative Activity Fair
Cattle typically avoid consuming milkweed plants that contain high levels of toxic defense compounds, and therefore many people assume cattle avoid all milkweeds. However, common milkweed (Asclepias syriaca) contains only moderate levels of toxic compounds, and observations suggest that cattle regularly consume common milkweed and may even preferentially graze flowers and leaves of this species. These observations directly relate to efforts to add over one billion stems of milkweed to the central USA for monarch butterfly (Danaus plexippus) conservation. If cattle intentionally consume common milkweed and other milkweed species, and if certain management practices can reduce …