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Articles 1 - 15 of 15
Full-Text Articles in Life Sciences
Ecological Researcher, Alex Demmers
Ecological Researcher, Alex Demmers
Celebration of Learning
This is my field research I complete during the summer of 2018.
Snake Fungal Disease In Lake Eerie Water Snakes And Its Affect On Attitude And Behavior During Treatment, Kelcie Fredrickson
Snake Fungal Disease In Lake Eerie Water Snakes And Its Affect On Attitude And Behavior During Treatment, Kelcie Fredrickson
Celebration of Learning
Snake fungal disease (SFD) is caused by the fungus Ophidiomyces ophiodiicola. Infection occurs when the outer skin is breached, and the organism enters the epidermis. The epidermis becomes necrotic and produces a yellow/brown crust. When the crust breaks off, ulcerations/lesions are formed along the snake’s body, head and tail. It has been found that SFD can be treated with a terbinafine nebulization treatment. Ellen Haynes, a PhD student, created a study in which 26 Lake Eerie water snakes are separated into treatment and control groups to determine the effectiveness of the nebulization treatment. Through daily observations, this research aimed …
Tracking Residual-Yolk Energy In Dormant Hatchling Turtles, Tom Pham, Dr. Tim J. Muir, Samira Radi, Jacob Wyco
Tracking Residual-Yolk Energy In Dormant Hatchling Turtles, Tom Pham, Dr. Tim J. Muir, Samira Radi, Jacob Wyco
Celebration of Learning
Hatchling painted turtles (Chrysemys picta) spend their first winter inside natal nests without food and must rely on maternally derived energy in the form of residual yolk for up to nine months. In this study, we take a closer look at the use and movement of residual-yolk energy during the first 33 weeks (~8 mo.) after hatching by measuring changes in mass, lipid content, & protein content of yolk, liver, small intestine, and carcass. Our data showed a significant decrease in yolk mass by 64% and significant increases in carcass & liver masses of 9% & 16%, respectively, …
Invertebrate Diversity Of Ponds Within Gremel Wildlife Sanctuary And Amboy Marsh, Dalton Howard, Madison Lape
Invertebrate Diversity Of Ponds Within Gremel Wildlife Sanctuary And Amboy Marsh, Dalton Howard, Madison Lape
Celebration of Learning
This project tested the water quality of different ponds and used macroinvertebrates as the overall indicator. The invertebrates give us a lot of knowledge about the health of the ecosystem and possible pollutants that could be harming the environments.
Do Stands Of Native Trees Harbor Different Invasive Species Than Stands Of Planted Pine?, Carly Mccameron, John Mccarthy, Dr. Kevin Geedey
Do Stands Of Native Trees Harbor Different Invasive Species Than Stands Of Planted Pine?, Carly Mccameron, John Mccarthy, Dr. Kevin Geedey
Celebration of Learning
The most outstanding invasive species that can be found at Augustana’s Green Wing Environmental Laboratory are honeysuckle, buckthorn, multiflora rose, garlic mustard, autumn olive, and oriental bittersweet. These plants are not only disrupting the ecosystem at Green Wing, but they are doing it all over the country. The result of their disruption is that they have taken over entire habitats and left natural species with no way to compete for survival. To study this we used the line-point method as well as other forms of data collection to compare a non-native pine tree habitat to an area dominated by native …
Effects Of Evolution On Laboratory Sublines Of Myxococcus Xanthus Dk1622, Mackenzie Ryan, Francesca Scribano, Kimberly Murphy
Effects Of Evolution On Laboratory Sublines Of Myxococcus Xanthus Dk1622, Mackenzie Ryan, Francesca Scribano, Kimberly Murphy
Celebration of Learning
Microbes have served as effective models for studying evolution because of their ability to be easily replicated, stored, and manipulated. Myxococcus xanthus is a soil bacterium that has served as a model organism in many laboratories. The unique social and motile behaviors exhibited by this bacterium make it ideal for phenotypic assays. A wild-type strain of M. xanthus, DK1622, has been distributed to laboratories across the United States and therefore we now have DK1622 sublines. The genomes of a number of these sublines have been sequenced and their social and motile phenotypes have been analyzed. When nine of these sublines …
Deer Droppings As A Diverse Invertebrate Habitat, Allison Furr, Dr. Kevin Geedey
Deer Droppings As A Diverse Invertebrate Habitat, Allison Furr, Dr. Kevin Geedey
Celebration of Learning
This project was performed at Augustana's Green Wing Environmental Laboratory and studied the richness and diversity of soil invertebrates in two conditions, deer poop enriched and surrounding soil. Soil invertebrates play an important role in soil quality which greatly affects ecosystems. The hypothesis of this study was that the diversity and richness would be the higher in the poop enriched soil samples. Soil samples were collected, Burlese funnels were used to collect the invertebrates, the invertebrates were examined under the microscope, and were assigned to taxa. The number of taxa (richness) and the number of individuals in each taxa (Simpson's …
The Spatial Distribution And Density Of The Emerald Ash Borer Infestation In Rock Island And Moline, Il, Kendall Smith, Victoria Lason, Tierney Brosius, Michael Reisner
The Spatial Distribution And Density Of The Emerald Ash Borer Infestation In Rock Island And Moline, Il, Kendall Smith, Victoria Lason, Tierney Brosius, Michael Reisner
Celebration of Learning
The Emerald Ash Borer (EAB) Agrilus planipennis Fairmaire (Copleoptera: Buprestidae) is a destructive colonizer of ash trees that arrived in the United States in 2002. Since then, EAB has been detected in 22 states and two Canadian provinces, and has proven to be a complicated management issue for many cities including Rock Island. The purpose of this study was to determine the spatial distribution and density of the EAB infestation in Rock Island, Ill and to identify potential correlations between host larval densities and visual symptoms. A continuation of spatial distribution was determined through a tree survey examining specific species …
Mapping Morels: Predicting The Locations Of Morchella Species Through Environmental Factors Using The Gis System, Emily M. Stanevicius
Mapping Morels: Predicting The Locations Of Morchella Species Through Environmental Factors Using The Gis System, Emily M. Stanevicius
Celebration of Learning
Morel mushrooms, Morechella esculenta and M. deliciosa, are known delicacies across the globe, ranging from exquisite dishes in French cuisine to Eastern palates such as Japanese Matsutake. According to literature, true morels diverged as their own genus about 129 million years, again which has led to the development of more than 177 species and have been part of the human diet since their beginning. However, the elusiveness of morels has contributed to the mushrooms infamy for rarity, and has even been known to sell for more than $40 per pound. This project seeks to aid in the search for morels …
Semaphorin3a Increases Focal Adhesion Formation To Shift The Relationship Between Cell Migration And Substratum Concentration Through A Rock-Dependent Mechanism, Frances V. Compere, Scott Gehler
Semaphorin3a Increases Focal Adhesion Formation To Shift The Relationship Between Cell Migration And Substratum Concentration Through A Rock-Dependent Mechanism, Frances V. Compere, Scott Gehler
Celebration of Learning
Cell migration is essential for many life processes, including wound healing, embryonic development and cancer metastasis. Cells move across a surface by interacting and forming adhesions with the molecules in their environment, specifically the extracellular matrix. Past studies have shown that there is an optimal level of cell-substratum adhesive strength that allows for the most cell migration and spreading (DiMilla et al., 1993; Gaudet et al., 2003). The mechanism by which this works is not well understood, however. Semaphorin 3A (Sema3A) has been shown to increase the expression of integrin receptors, which help mediate the formation of the adhesions between …
Effect Of Different Miracle-Gro Concentrations On The Growth Of Wisconsin Fast Plants, Eric D. Shershen, Nicholas M. Orslini, David Channon, Marvin Agyeben
Effect Of Different Miracle-Gro Concentrations On The Growth Of Wisconsin Fast Plants, Eric D. Shershen, Nicholas M. Orslini, David Channon, Marvin Agyeben
Celebration of Learning
The Wisconsin Fast Plant, Brassica rapa (Brassicaceae) seeds were planted in three, six-celled containers and were filled with standard potting soil under continuous grow-lux lighting. After the first week of plant growth, E1and E2 were placed in a separate trays and given 1.0 and 1.5x the recommended amount of Miracle-Gro formula, respectively. The control was left in tap water and all were kept in 1 cm of solution. Every seven days the plants’ heights were recorded, and the total number of flowers were counted. By the fourth week, the average height of the control plants was 105.7 mm, of the …
Effects Of Mutating The Mrub_1345 Gene Found In Meiothermus Ruber, Brandon M. Wills, Lori R. Scott
Effects Of Mutating The Mrub_1345 Gene Found In Meiothermus Ruber, Brandon M. Wills, Lori R. Scott
Celebration of Learning
Meiothermus ruber is a unique, red-pigmented, thermophilic bacterium that preferentially grows in high-temperature environments ranging from 35-70°C. Due to the lack of studies performed on this organism, there is quite a bit of information missing in regard to the genes found within this organism’s genome and their function. This study focuses in on the Mrub_1345 gene in M. ruber, which has been suggested to be orthologous to the proC gene found of E. coli proline biosynthesis pathway. To test if these genes are orthologs, we performed the complementation assay on wild-type proC. Next, we performed site-directed mutagenesis on amino acids …
Purification, Optimization, And Growth Of New Delhi Metallo-Β-Lactamase-1 Protein Crystals Mixed With Nz218 Inhibitor, Brandon M. Wills
Purification, Optimization, And Growth Of New Delhi Metallo-Β-Lactamase-1 Protein Crystals Mixed With Nz218 Inhibitor, Brandon M. Wills
Celebration of Learning
New Delhi metallo-β-lactamase-1 is a problematic gene found in certain strains of bacteria that cause them to become antibiotic resistant to nearly all known antibiotics. While some antibiotics are available to treat patients with a bacterial infection, most are toxic or do not have 100% success rates. With that being said, it is imperative that we search for a molecule that is successfully able to inhibit the effects of this gene every time. Such a discovery would help tremendously with new antibiotic drug development and also prevent further damage by these dangerous bacteria. In this presentation, I will describe the …
The Effects Of Urbanization On Leaf Breakdown Rates In A Rock Island Watershed, Jillian M. Jespersen, Laura Becker, Kortney Hix, C. Kevin Geedey
The Effects Of Urbanization On Leaf Breakdown Rates In A Rock Island Watershed, Jillian M. Jespersen, Laura Becker, Kortney Hix, C. Kevin Geedey
Celebration of Learning
The ability of streams to break down leaves is widely used as an indicator of stream health. In this study, a series of six streams within the Rock Island, Ill., watershed, which were similar in discharge, order, temperature and pH, were categorized as healthy or unhealthy based on chloride levels. This study was part of a broader study of the Rock Island watershed by Augustana. Maple leaves were collected shortly after abscission, weighed, packaged in mesh bags (approximately 5g per bag) and deployed in the streams for two- and four-week periods. After each time period, the leaves were removed, dried …
Alzheimer's Disease And The Importance Of Music Therapy, Patricia Kautenberger
Alzheimer's Disease And The Importance Of Music Therapy, Patricia Kautenberger
Celebration of Learning
Worldwide, statistics suggest that by the year 2050 as many as 80 million individuals will be living with Alzheimer’s disease (AD). Because current pharmacological interventions can only slow its progression, the pathology eventually overcomes the benefits of the medications, thus leaving a deficit in long-term treatment. However, the preservation of the brain’s ability to work with and benefit from music has created a window of opportunity for an alternative treatment. Music therapy has been shown to be a promising alternative treatment because it has very little risk, and studies suggest that it is effective in improving familiarity and recollection in …