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- Apple (2)
- Erwinia amylovora (2)
- Pear (2)
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- Tetrodotoxin (2)
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- (MTE) Metabolic Theory of Ecology (1)
- Arenavirus (1)
- Aristeromycin (1)
- Arms (1)
- Aspen (1)
- Bison (1)
- CIEIA (1)
- Caddisfly Larvae (1)
- Clark's Nutcracker; Glacier National Park; monitoring; red squirrel; seed harvest; whitebark pine (1)
- Coevolutionary (1)
- Decision Making (1)
- Ecoimmunology Immunity Bacteria Complement activity (1)
- Ecology (1)
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- Environment (1)
- Exopolysaccharides (1)
- HPLC (1)
- Hemorrhagic fever (1)
- Implications (1)
- Inquiry (1)
- MY-24 (1)
- Management (1)
- Methodological approaches (1)
- Newt (1)
- North American (1)
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Articles 1 - 16 of 16
Full-Text Articles in Life Sciences
Modulation Of The Host Response To Tacaribe Arenavirus Infection In Ag129 Mice By My-24, Eric Sefing
Modulation Of The Host Response To Tacaribe Arenavirus Infection In Ag129 Mice By My-24, Eric Sefing
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
MY-24 is a new antiviral compound recently shown to protect immunocompromised mice from lethal challenge with Tacaribe virus (TCRV). Tacaribe virus is incapable of causing disease to humans, but is closely related to the highly pathogenic New World arenaviruses that cause often-fatal viral hemorrhagic fever syndromes. Remarkably, MY-24 prevents mortality without reducing virus burden in the circulation or tissues. To investigate the mechanism by which MY-24 protects AG129 mice against Tacaribe virus infection, we first characterized the natural history of disease in the model with an emphasis on host immune response and blood vessel function to establish the best times …
Clark's Nutcracker Seed Harvest Patterns In Glacier National Park And A Novel Method For Monitoring Whitebark Pine Cones, Monika E. Maier
Clark's Nutcracker Seed Harvest Patterns In Glacier National Park And A Novel Method For Monitoring Whitebark Pine Cones, Monika E. Maier
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Clark's Nutcracker (Nucifraga columbiana) is the primary seed disperser of whitebark pine (Pinus albicaulis), which is in decline throughout its range. There is concern that a decline in whitebark pine will lead to a subsequent decline in local populations of Clark's Nutcracker. Because natural regeneration depends on the presence of Clark's Nutcracker, the process of harvesting whitebark pine seeds needs to be fully understood. In addition, resource managers need a cost-effective method for monitoring nutcracker occurrence in whitebark pine stands during the seed harvest season. I visited eleven study sites in Glacier National Park, Montana, where …
Caddisfly Larvae (Limnephilidae) As Predators Of Newt (Taricha Granulosa) Eggs: Another Player In The Coevolutionary Arms Race Revolving Around Tetrodotoxin?, Brian G. Gall
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Some populations of newts (Taricha granulosa) possess large quantities of the neurotoxin tetrodotoxin (TTX) in their skin and eggs. Many populations of garter snake (Thamnophis sirtalis) are resistant to this toxin and can consume large numbers of newts with no negative effects. Despite the wealth of information acquired on the interaction between newts and their predator, garter snakes, very little research has been conducted on possible interactions between newts and other predators. I conducted a suite of experiments examining for the presence of other predators on newts, specifically focusing on predators of their eggs and larvae. …
Characterization Of The Function And Interaction Of Proteins Involved In Exopolysaccharide Synthesis In Streptococcus Thermophilus, Streptococcus Iniae, And Lactococcus Lactis Subsp. Cremoris, Angela D. Cefalo
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Many microorganisms produce capsules of repeating sugar units that surround the cell called exopolysaccharides. The synthesis of these capsules is a complex process that involves numerous protein components. A better understanding of the way these proteins function and interact with one another will benefit many industrial processes by aiding in the construction of bacterial strains with enhanced properties and could also lead to new treatment strategies against microbial pathogens in which capsule production is important in their ability to cause disease. In this study, the function of one of the proteins involved in the regulation of capsule synthesis in the …
Social Organization And Decision Making In North American Bison: Implications For Management, Ryan A. Shaw
Social Organization And Decision Making In North American Bison: Implications For Management, Ryan A. Shaw
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Social organization varies widely among herbivores, and the level of social organization in bison is widely debated. I hypothesized that when mother-daughter relationships are allowed to develop, bison form long-term associations. In my study, 25 treatment mothers were selected from a free-ranging herd and kept together with their calves, while 25 control females had their calves forcefully removed. Treatment mothers and offspring had by far the greatest number of associations with a greater percentage of individuals with a half weight index (HWI) > 0.50. The strongest associations (HWI > 0.31) were among treatment mothers and their offspring. Moreover, these associations persisted over …
Two New Species Of Trigonotylus (Hemiptera: Heteroptera: Miridae: Stenodemini) From Western Canada And Northwestern United States, G G.E. Scudder, Michael D. Schwartz
Two New Species Of Trigonotylus (Hemiptera: Heteroptera: Miridae: Stenodemini) From Western Canada And Northwestern United States, G G.E. Scudder, Michael D. Schwartz
Green Canyon Environmental Research Area, Logan Utah
No abstract provided.
Livestock Foraging Behavior In Response To Sequence And Interactions Among Alkaloids, Tannins, And Saponins, Tiffany L. Jensen
Livestock Foraging Behavior In Response To Sequence And Interactions Among Alkaloids, Tannins, And Saponins, Tiffany L. Jensen
Green Canyon Environmental Research Area, Logan Utah
No abstract provided.
The Role Of Fine-Scale Habitat Associations In Structuring Spider Assemblages: Determinants Of Spatial Patterns In Community Compostion, Stephanie M. Cobbold
The Role Of Fine-Scale Habitat Associations In Structuring Spider Assemblages: Determinants Of Spatial Patterns In Community Compostion, Stephanie M. Cobbold
Green Canyon Environmental Research Area, Logan Utah
No abstract provided.
Survey Of Erwinia Amylovora, Causal Agent Of Fire Blight, From Apple And Pear Orchards In Utah For Streptomycin Resistance, Christine Dhiman
Survey Of Erwinia Amylovora, Causal Agent Of Fire Blight, From Apple And Pear Orchards In Utah For Streptomycin Resistance, Christine Dhiman
Browse All Undergraduate research
Fire blight caused by the bacterium Erwinia amylovora results in millions of dollar in losses worldwide. It is the most important disease problem for apple and pear growers in Utah. Currently the only effective management strategy is application of the antibiotic streptomycin. In 2006, resistant isolates were detected in an apple orchard in Utah County. To determine the distribution of resistant isolates, samples collected in 2006, 2007, 2010 and 2011 from orchards across Utah were tested for resistance to streptomycin. Isolates were screened at 0, 100 and 1000ppm of streptomycin. Bacteria were spread on LB agar. A hole was punched …
Survey Of Erwinia Amylovora, Causal Agent Of Fire Blight, From Apple And Pear Orchards In Utah For Streptomycin Resistance, Christine Dhiman
Survey Of Erwinia Amylovora, Causal Agent Of Fire Blight, From Apple And Pear Orchards In Utah For Streptomycin Resistance, Christine Dhiman
NCUR
Fire blight caused by the bacterium Erwinia amylovora results in millions of dollar in losses worldwide. It is the most important disease problem for apple and pear growers in Utah. Currently the only effective management strategy is application of the antibiotic streptomycin. In 2006, resistant isolates were detected in an apple orchard in Utah County. To determine the distribution of resistant isolates, samples collected in 2006, 2007, 2010 and 2011 from orchards across Utah were tested for resistance to streptomycin. Isolates were screened at 0, 100 and 1000ppm of streptomycin. Bacteria were spread on LB agar. A hole was punched …
Strong Self-Limitation Promotes The Persistence Ofrare Species, G. M. Yenni, P. B. Adler, S.K. Morgan Ernest
Strong Self-Limitation Promotes The Persistence Ofrare Species, G. M. Yenni, P. B. Adler, S.K. Morgan Ernest
Biology Faculty Publications
Theory has recognized a combination of niche and neutral processes each contributing, with varying importance, to species coexistence. However, long-term persistence of rare species has been difficult to produce in trait-based models of coexistence that incorporate stochastic dynamics, raising questions about how rare species persist despite such variability. Following recent evidence that rare species may experience significantly different population dynamics than dominant species, we use a plant community model to simulate the effect of disproportionately strong negative frequency dependence on the long-term persistence of the rare species in a simulated community. This strong self-limitation produces long persistence times for the …
Improved Ex Vivo Method For Microbiocidal Activity Across Vertebrate Species, Susannah S. French, Lorin A. Neuman-Lee
Improved Ex Vivo Method For Microbiocidal Activity Across Vertebrate Species, Susannah S. French, Lorin A. Neuman-Lee
Biology Faculty Publications
The field of ecoimmunology is currently undergoing rapid expansion, whereby biologists from a wide range of ecological disciplines are increasingly interested in assessing immunocompetence in their study organisms. One of the key challenges to researchers is determining what eco-immune measures to use in a given experiment. Moreover, there are limitations depending on study species, requirements for specific antibodies, and relevance of the methodology to the study organism. Here we introduce an improved ex vivo method for microbiocidal activity across vertebrate species. The utility of this assay is that it determines the ability of an organism to remove a pathogen that …
An Improved Competitive Inhibition Enzymatic Immunoassay Method For Tetrodotoxin Quantification, James P. Strange, Becky L. Williams, Susannah S. French
An Improved Competitive Inhibition Enzymatic Immunoassay Method For Tetrodotoxin Quantification, James P. Strange, Becky L. Williams, Susannah S. French
Biology Faculty Publications
Quantifying tetrodotoxin (TTX) has been a challenge in both ecological and medical research due to the cost, time and training required of most quantification techniques. Here we present a modified Competitive Inhibition Enzymatic Immunoassay for the quantification of TTX, and to aid researchers in the optimization of this technique for widespread use with a high degree of accuracy and repeatability.
Methodological Tools, Ethan P. White, Xiao Xiao, J. B. Nick, Richard M. Sibly
Methodological Tools, Ethan P. White, Xiao Xiao, J. B. Nick, Richard M. Sibly
Biology Faculty Publications
Methodological approaches for comparing metabolic theory predictions to empirical data fall into two general categories: 1) determining if the general functional form of a relationship predicted by the theory is valid; and 2) determining whether the observed values of the parameters match the specific quantitative predictions made by the theory. Both of these categories of analysis rely on being able to accurately determine the best fitting form of a model with the same general functional form as that of MTE, so we will begin by discussing how this has typically been done using OLS regression on appropriately transformed data. Potential …
Investigating Human Impact In The Environment With Faded Scaffolded Inquiry Supported By Technologies, D. T. Longhurst, M. Longhurst, A. M. Duffy, Paul G. Wolf
Investigating Human Impact In The Environment With Faded Scaffolded Inquiry Supported By Technologies, D. T. Longhurst, M. Longhurst, A. M. Duffy, Paul G. Wolf
Biology Faculty Publications
Teaching science as inquiry is advocated in all national science education documents and by leading science and science teaching organizations. In addition to teaching science as inquiry, we recognize that learning experiences need to connect to students’ lives. This article details how we use a sequence of faded scaffolded inquiry supported by technologies to engage students meaningfully in science connected to their lives and schoolyards. In this approach, more teacher guidance is provided earlier in the inquiry experiences before this is faded later in the sequence, as students are better prepared to complete successful inquiries. The sequence of inquiry experiences …
Widespread Triploidy In Western North American Aspen (Populus Tremuloides), Karen E. Mock, Colin M. Callahan, M. Nurul Islam-Faridi, John D. Shaw, Hardeep S. Rai, Stewart C. Sanderson, Carol A. Rowe, Ronald J. Rye, Michael D. Madritch, Richard S. Gardner, Paul G. Wolf
Widespread Triploidy In Western North American Aspen (Populus Tremuloides), Karen E. Mock, Colin M. Callahan, M. Nurul Islam-Faridi, John D. Shaw, Hardeep S. Rai, Stewart C. Sanderson, Carol A. Rowe, Ronald J. Rye, Michael D. Madritch, Richard S. Gardner, Paul G. Wolf
Biology Faculty Publications
We document high rates of triploidy in aspen (Populus tremuloides) across the western USA (up to 69% of genets), and ask whether the incidence of triploidy across the species range corresponds with latitude, glacial history (as has been documented in other species), climate, or regional variance in clone size. Using a combination of microsatellite genotyping, flow cytometry, and cytology, we demonstrate that triploidy is highest in unglaciated, drought-prone regions of North America, where the largest clone sizes have been reported for this species. While we cannot completely rule out a low incidence of undetected aneuploidy, tetraploidy or duplicated loci, our …