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Articles 1 - 9 of 9
Full-Text Articles in Life Sciences
The Brown Bear Gut Microbiome: A Novel Tool For Conservation & Management, Sarah M. Trujillo
The Brown Bear Gut Microbiome: A Novel Tool For Conservation & Management, Sarah M. Trujillo
All NMU Master's Theses
Gut microbiomes (GMBs), complex communities of microorganisms inhabiting the gastrointestinal tracts of their hosts, perform countless micro-ecosystem services such as facilitating energy uptake and modulating immune responses. While scientists increasingly recognize the role GMBs play in host health, the role of GMBs in wildlife ecology and conservation has yet to be realized fully. Here, I use brown bears (Ursus arctos) as an ecological model to investigate (1) how both extrinsic and intrinsic factors influence GMB community membership and structure; and (2) the correlation between GMB membership and brown bear health metrics. To achieve these aims, I subsampled archived …
Trophic Ecology Of Juvenile Lean And Siscowet Lake Trout (Salvelinus Namaychush) From U.S. Waters Of Lake Superior, Will Otte
All NMU Master's Theses
In this study, I investigated the spatial overlap, diet similarity, and isotopic niches of juvenile Lean and Siscowet Lake Trout ecotypes across six ecoregions of Lake Superior. Spatially, Lean and Siscowet were observed in overlapping depth distributions. Leans were most abundant in shallow waters (60m). The greatest levels of cohabitation were observed in waters from 40-60m. Trophic position (as measured by δ 15N) was similar for both ecotypes at small sizes (mm), but Siscowet exhibited a higher trophic position than Lean Lake Trout at larger sizes (>400mm) and older ages (>5 years). Base of production (as measured by …
Coordination Variability And Injury Risk In Experienced Collegiate Dancers, Emily Klinkman
Coordination Variability And Injury Risk In Experienced Collegiate Dancers, Emily Klinkman
All NMU Master's Theses
Dance is a sport that places a number of physical demands upon the human body, and injuries are a common occurrence in the sport. While it has not yet been linked to dance-related injury, coordination variability (CV) is a measure of how much movement strategy changes between repetitions of a task and low levels of CV have been linked to injury in other sports. This study aimed to determine the relationship between CV and dance injury in collegiate dancers. Eight (8) undergraduate student subjects were recruited from the dance major and minor, BFA major and minor, and recreational dancers who …
Cerebellum-Seeded Functional Connectivity Changes In Trait-Anxious Individuals Undergoing Attention Bias Modification Training, Katherine Elwell
Cerebellum-Seeded Functional Connectivity Changes In Trait-Anxious Individuals Undergoing Attention Bias Modification Training, Katherine Elwell
All NMU Master's Theses
Anxiety and anxiety related disorders are increasing at a drastic rate in the past decade, with the NIMH reporting that 31.1% of U.S. adults will experience an anxiety disorder at some point in their lives. Anxiety is commonly characterized by increased attention bias to threat. Attention Bias Modification (ABM) is a new treatment used to reduce individual’s attention bias towards threat. The extent to which ABM leads to underlying neural changes is still unknown. The cerebellum is a neglected brain structure, with new research provides evidence that cerebellum’s functional connectivity and shared networks with threat processing regions has a direct …
Sensitive And Specific Detection Of Sars-Cov-2 In Saliva Using Reverse Transcriptase Loop-Mediated Isothermal Amplification, Casey Juntila
Sensitive And Specific Detection Of Sars-Cov-2 In Saliva Using Reverse Transcriptase Loop-Mediated Isothermal Amplification, Casey Juntila
All NMU Master's Theses
A novel coronavirus called SARS-CoV-2 has caused the emergency release of the most well-known molecular assay, the CDC N1 RT-PCR assay, causing reports of poor analytical performance resulting in false-negative results (20, 26), and inconsistent testing kits received (23, 32). An immediate and dire need for a rapid and reliable SARS-CoV-2 testing workflow specifically designed for a university setting is the purpose this project is aiming and intended to fulfill. The workflow design uses a less invasive saliva sample for rapid screening using colorimetric RT-LAMP detection of three SARS-CoV-2 gene regions for Orf1ab, envelope, and nucleocapsid. Purified SARS-CoV-2 genomic RNA …
A Dynamic Landscape Of Fear: Human Impacts On Carnivore Communities, Tru Hubbard
A Dynamic Landscape Of Fear: Human Impacts On Carnivore Communities, Tru Hubbard
All NMU Master's Theses
Mammalian carnivores are elusive, enigmatic species that often play keystone roles in ecosystems through direct (i.e., predation) and indirect (i.e., perceived predation risk) effects. Worldwide many carnivore species are experiencing rapid human-mediated population declines due to landscape change and habitat disturbance. For researchers, carnivores present unique challenges due to their large home ranges, low population densities, sensitivity to human disturbance, and direct persecution. Further, growing evidence shows that human activity can impact carnivore behavior and community structure by altering predator-prey interactions, shifting diel activity patterns, and altering wildlife movement leading to increased sightings, nuisance reports, and harvests. To investigate how …
The Physiological Effects Of Therapy Dogs During Exercise For Sedentary Adults, Josie Lynne Mazzone
The Physiological Effects Of Therapy Dogs During Exercise For Sedentary Adults, Josie Lynne Mazzone
All NMU Master's Theses
Previous research has shown therapy dogs may be utilized to attenuate heart rate (HR) and blood pressure (BP) responses during various types of stressors due to an increase in oxytocin (OT) and decrease in cortisol (CL) production. These hormonal changes have also been shown to enhance exercise performance. Purpose: This study aimed to determine if physiological responses to exercise changed in the presence of a therapy dog for sedentary adults. Methods: Seven adult subjects (mean age of 30.86 ± 14.07 years) who self-reported less than 150 min of physical activity per week participated in a graded walking test with a …
Wolf Selection Of Human-Modified Linear Features And Cover Types When Hunting And Killing White-Tailed Deer Fawns, Austin T. Homkes
Wolf Selection Of Human-Modified Linear Features And Cover Types When Hunting And Killing White-Tailed Deer Fawns, Austin T. Homkes
All NMU Master's Theses
Predators must optimize and adapt foraging behavior for multiple spatial scales to take advantage of abundant and vulnerable prey. Wolves (Canis lupus) live in human-modified landscapes where anthropogenic disturbances and landscape alterations can influence predator-prey dynamics. In southern boreal ecosystems, wolves rely heavily on seasonally abundant white-tailed deer (Odocoileus virginianus) fawns, which are highly susceptible to predation in their first weeks of life. My objective was to understand how anthropogenic disturbances—specifically timber harvest areas and linear features—and cover types influence where wolves hunt and kill fawns. During 2016–2019, I fit wolves with 20-min-fix-interval Global Positioning System …
Using Acoustic Telemetry To Analyze The Impacts Of Common Carp On Wild Rice Restoration, Franklin Zomer
Using Acoustic Telemetry To Analyze The Impacts Of Common Carp On Wild Rice Restoration, Franklin Zomer
All NMU Master's Theses
Wild rice (Zizania palustris) is an important cultural, spiritual, and dietary resource to Lake Superior Ojibwe. Common Carp (Cyprinus carpio) are an introduced species that negatively impact aquatic vegetation through changes in water quality, uprooting of plants, and consumption of seed. Acoustic telemetry was used to document Common Carp movements in Waishkey Bay in the upper St. Marys River, MI where wild rice habitat is present. Exclosures were established to measure the influence of carp presence on wild rice seeding success. Common Carp were observed to spend much of their time in Waishkey Bay but also …