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Articles 151 - 180 of 14937
Full-Text Articles in Life Sciences
Locust Borer, Marion Murray, Ryan Davis
Locust Borer, Marion Murray, Ryan Davis
All Current Publications
The locust borer, Magacyllene robiniae, belongs to the longhorned beetle family, referring to the long antennae of most of the species in this group. In Utah, locust borer has damaged black locust trees in most northern Utah counties. The only host is black locust; honeylocust and other trees are not affected by this pest. This fact sheet describes locust borer and its life cycle, symptoms, and control.
Poplar Borer, Marion Murray, Ryan Davis
Poplar Borer, Marion Murray, Ryan Davis
All Current Publications
The poplar borer is the most commonly submitted wood borer found in aspens and other poplars in Utah. While large trees are seldom killed by this pest, it can cause the decline of trees, weakening of branches or the bole (which promotes wind breakage), and allows the introduction of pathogens. This fact sheet describes poplar borer life cycle, damage, and control.
Red Firebug, Kate V. Richardson, Erin Hodgson
Red Firebug, Kate V. Richardson, Erin Hodgson
All Current Publications
Red firebugs, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae), are true bugs with vibrant red body and wing coloration. These insects are native to central Europe, but are also found in western Siberia, southwestern Mongolia, India and northwestern China. This fact sheet describes red firebug, host plants, nuisance behavior, and management.
Poplar Bud Gall Mite, Marion Murray, Ryan Davis
Poplar Bud Gall Mite, Marion Murray, Ryan Davis
All Current Publications
The poplar bud gall mite belongs to the eriophyid mite family. These mites are microscopic and about one-fourth the size of a spider mite. Adults are about 0.2 mm in length, reddish, and spindle-shaped. This fact sheet reviews poplar bud gall mite biology and habits, damage, and control.
Mosca Linterna Moteada, Lori R. Spears, Ann Mull, Celina Wille, Marion Murray
Mosca Linterna Moteada, Lori R. Spears, Ann Mull, Celina Wille, Marion Murray
All Current Publications
La mosca linterna moteada es una nueva saltahojas invasiva en Norteamérica. Es originaria del norte de China y se ha extendido a otras partes de Asia, incluidos Vietnam, Japón y Corea del Sur, donde está causando daños significativos a la vid.
Picudos En El Césped, Desireè Wickwar, Ricardo Ramírez, Marion Murray, Celina Wille
Picudos En El Césped, Desireè Wickwar, Ricardo Ramírez, Marion Murray, Celina Wille
All Current Publications
Los picudos son gorgojos, un tipo de escarabajo, del género Sphenophorus. Al menos 10 especies de picudos se reconocen como plagas del césped, y se pueden encontrar tanto en céspedes estivales como invernales en todo Estados Unidos.
Escarabajo Japonés, Lori Spears, Diane Alston, Marion Murray, Joey Caputo, Kristopher Watson, Celina Wille
Escarabajo Japonés, Lori Spears, Diane Alston, Marion Murray, Joey Caputo, Kristopher Watson, Celina Wille
All Current Publications
El escarabajo Japonés es una plaga invasora que puede ser muy destructiva para plantas ornamentales, árboles, arbustos, césped, y algunas frutas y hortalizas. El EJ probablemente se introdujo desde Japón al este de los EE. UU. en 1916 durante envíos de plantas ornamentales. Ahora está establecido en la mayoría de los estados del este y algunos del medio oeste.
Population Physiology, Demography, And Genetics Of Side-Blotched Lizards (Uta Stansburiana) Residing In Urban And Natural Environments, Spencer B. Hudson
Population Physiology, Demography, And Genetics Of Side-Blotched Lizards (Uta Stansburiana) Residing In Urban And Natural Environments, Spencer B. Hudson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Wildlife populations across the globe are poised to lose their natural habitat to urbanization, yet there is limited information on how different species handle living in cities. Animals in urban environments are often susceptible to novel stressors, which can threaten their individual health and population viability. The physiological characteristics of animals, such as those related to metabolic hormones, oxidative stress, and immunity, are expected to be important for survival in this context. If so, animals persisting in urban areas may demonstrate physiological differences from their natural counterparts, perhaps due to evolutionary change. These potential outcomes have been documented in birds …
Mountain Lion (Puma Concolor) And Feral Horse (Equus Ferus) Interactions: Examining The Influence Of A Non-Native Ungulate On Predator Behavior In A Semi-Arid Environment, Peter C. Iacono
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A non-native is a species that evolved in one ecosystem and has established within another. Non-native species can thrive in new ecosystems as they can spread quickly, outcompete and replace native species, and disrupt food webs. Domestic horses were brought to North America by Europeans in 1493. They are now found in 11 states across the western United States. Feral horses can negatively impact vegetation, endangered species habitat, compete with native species, and be important prey for mountain lions under certain conditions. But do feral horses affect the food web? Feral horses are managed by large removals to reduce the …
Investigating Mitochondrial Influence On The Rate Of Anaerobic Glycolysis In An In Vitro Model, Mackenzie Jenna' Taylor
Investigating Mitochondrial Influence On The Rate Of Anaerobic Glycolysis In An In Vitro Model, Mackenzie Jenna' Taylor
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The rate at which the muscle acidifies after an animal is harvested has a profound effect on the quality of the resulting pork. When acidification increases gradually, desirable pork quality characteristics are developed. In contrast, rapid acidification deteriorates pork quality, exemplified by the pale, soft, and exudative (PSE) pork defect. The rate of acidification is determined by the rate of anaerobic metabolism in postmortem muscle. Yet the processes controlling postmortem anaerobic metabolism are not well understood. Recent research suggests that mitochondria, the powerhouse of the cell, may influence this process by competing for substrate (pyruvate) with anaerobic metabolism, thereby reducing …
Multispecies Genomic Sex Identification Using Ddx3 Gene Polymorphisms, Jessica Felts
Multispecies Genomic Sex Identification Using Ddx3 Gene Polymorphisms, Jessica Felts
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
PCR sex determination assays must be reliable and cost effective due to the frequent and integral use of these assays in biological research and the animal production industry. Thus, the design of proof of a primer pair with a built-in control is warranted to not only bypass the extra cost of a multiplex reaction, but also to prevent anomalous results that have been documented with other primer pairs.
The objective of this study was to design primer pairs with built in PCR amplification control to identify sex in Equus caballus (domestic horse), Homo sapiens (humans), Macaca mulatta (rhesus macaque), and …
Antimicrobial Peptides In Transgenic Silkworm Silk, David Jaden Turner
Antimicrobial Peptides In Transgenic Silkworm Silk, David Jaden Turner
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Overview: People in India and China have produced silk textiles for thousands of years. Silk is a biodegradable, biocompatible compound used in the production of clothing, bedding, furniture, industrial materials, and medical applications. Over the last 30 years, research has increasingly investigated silk’s antimicrobial effects and how to augment its natural abilities. Antimicrobial peptides, or AMPs, are also an area of increasing interest as the rise of antibiotic resistance reduces the efficacy of current treatments. This project plans to systematically synthesize a fusion protein that incorporates the beneficial properties of each constituent into commercial silkworms.
Innovation: This project seeks to …
Physiological Consequences Of Adrenal Enlargement And Implications For Toxin Resistance In North American Snakes, Megen E. Kepas
Physiological Consequences Of Adrenal Enlargement And Implications For Toxin Resistance In North American Snakes, Megen E. Kepas
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The long observed relationship between enlarged adrenal glands and toad-eating in snakes has remained a mystery in physiological ecology and herpetology. It has been predicted that large adrenal glands may be capable of producing higher amounts of key hormones, and that higher plasma hormone levels may lend some behavioral or physiological benefits after a toxic toad has been eaten. I address questions surrounding adrenal enlargement and its potential benefits to toad eaters in four research chapters. In my second chapter, I quantify adrenal hormone output at different embryonic stages in the toad-generalist snake Thamnophis elegans and examine the ability of …
Precipitation And Soil Properties Determine Long-Term Consequences Of Disturbance And Invasion In Drylands, Tyson Terry
Precipitation And Soil Properties Determine Long-Term Consequences Of Disturbance And Invasion In Drylands, Tyson Terry
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Disturbance and invasive species have dramatic effects on desert plant communities, often resulting in degradation or shifts to alternative plant communities. Climate and soil properties determine water availability to plants, and have been thought to drive patterns of recovery following disturbance and potential for invasion.
In chapter II we used a combination of natural gas pipelines and satellite imagery to understand how recovery from a uniform disturbance differs across precipitation and soil gradients. We used a recovery ratio (disturbed/undisturbed) of pipeline pixels and their undisturbed nearest neighbor pixel to quantify recovery in a comparable way across precipitation gradients. We found …
Opening The Black Box: Soil Microbial Communities In Field-Based Plant-Soil Feedback Experiments, Julia Kate Aaronson
Opening The Black Box: Soil Microbial Communities In Field-Based Plant-Soil Feedback Experiments, Julia Kate Aaronson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Plant-soil feedback is a process through which plants modify the properties of their associated soils, affecting their growth. PSF can play a key role in regulating plant growth and communities including altering plant invasion, rarity, and abundance. However, our understanding of the soil organisms that drive these plant growth responses is limited. Most studies treat soils as a ‘black box’ and do little to reveal which specific microbes or microbial communities may be responsible. This chapter examines two recent large PSF field experiments conducted in Minnesota, USA, and Jena, Germany. These experiments revealed that plants altered their soils, changing subsequent …
Overcoming Barriers To Aquatic Plant Restoration: Addressing Gaps In Species Identification And Planting Techniques In The Intermountain West, Kate A. Sinnott
Overcoming Barriers To Aquatic Plant Restoration: Addressing Gaps In Species Identification And Planting Techniques In The Intermountain West, Kate A. Sinnott
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Aquatic ecosystems provide many critical and economically valuable benefits, including drinking water, food, recreational opportunities, and water supply for irrigation and agriculture. However, the health of these systems has been severely impacted by human activities such as pollution, land conversion, and introductions of harmful species. Restoring native aquatic plants can help reverse this damage and reestablish benefits, though it is not a common practice. With an objective to increase capacity for aquatic plant restoration in the Intermountain West, I identified and addressed two major barriers: 1) a lack of confidence in aquatic species identification among wetland professionals, and 2) underdeveloped …
Evaluating Beaver Translocation Methods For Desert River Restoration, Christine E. Sandbach
Evaluating Beaver Translocation Methods For Desert River Restoration, Christine E. Sandbach
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Wildlife translocation, or moving wild animals from their original home to a new location, is a common conservation practice; however, translocation programs have variable success rates. Beaver translocation is often used in stream restoration projects due to beavers’ role as ecosystem engineers—beavers enhance riparian habitat by building dams that hold water and create more diverse channels. Beaver translocation success is often limited by high mortality and long distance movement after release, and improvement in translocation methods is needed. My objective was to evaluate two methods of improving beaver translocation success in a degraded desert river in east-central Utah: beaver dam …
Impact Of Forage Conditioner Systems On The Harvesting Of Alfalfa, Derrick Hendry
Impact Of Forage Conditioner Systems On The Harvesting Of Alfalfa, Derrick Hendry
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study analyzed three major brands of conditioner rollers and determined how they performed in drying the forage crop alfalfa. Each type of conditioner roller would cut a wide and narrow windrow. All the windrows were tested and analyzed the same. The study was concluded once the forage was baled.
Treatment Of Yellow Fever Virus With The Ns4b Inhibitor Bdaa And Effects On Rna‐Sensing Innate Immune Pathways In Hamster And Mouse Models, Abbie E. Weight
Treatment Of Yellow Fever Virus With The Ns4b Inhibitor Bdaa And Effects On Rna‐Sensing Innate Immune Pathways In Hamster And Mouse Models, Abbie E. Weight
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Yellow fever (YF) is an acute and often severe disease cause by yellow fever virus (YFV). Although there is an effective vaccine available to prevent YF, there are no antiviral drugs approved to treat the disease, which has a considerable disease burden in endemic areas of South America and Africa. BDAA is an experimental antiviral treatment which has shown efficacy against YFV both in cell culture and when administered before infection in an animal model of disease. BDAA targets the YFV protein NS4B and has two reported mechanisms of action: the primary mechanism of action is the direct inhibition of …
Greater Sage-Grouse Response To Tree Canopy Removal: Habitat Vegetation Composition And Sage-Grouse Use 10–15 Years Post Treatment In The Southern Periphery Of The Species Range, Benjamen Donnelly
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Pinyon juniper woodland expansion into Greater sage-grouse (Centrocercus urophasianus, hereafter ‘sage-grouse’) habitat in southern Utah continues to threaten sage-grouse survival. Habitat restoration after pinyo-juniper removal treatment is key to the continued persistence and survival of sage-grouse along the southern edge of their range. Few long-term studies are available that examine sage-grouse use of areas treated to remove pinyon-juniper forests (i.e., ‘restored habitat’). The purpose of this research was to determine if sage-grouse used ‘restored’ areas in the long-term, as a measure of the actual effectiveness of pinyon-juniper woodland control treatments. I compared vegetation composition, shrub height and shrub …
A Statewide Evaluation Of Fuel Treatment Effectiveness In Altering Wildfire Outcomes On Public Lands In Utah, Jamela Charmaine Thompson
A Statewide Evaluation Of Fuel Treatment Effectiveness In Altering Wildfire Outcomes On Public Lands In Utah, Jamela Charmaine Thompson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Fuel treatments are land management activities that reduce living and dead flammable materials on the landscape to mitigate undesirable wildfire behavior and effects. Common treatments in the western United States include mechanical methods such as thinning and mastication, prescribed burns, and chemical methods, such as herbicide application. Treatments usually have multiple objectives, including reducing fire intensity, protecting natural and cultural resources, slowing or disrupting a potential future fire’s path, supporting ecosystem health, and reestablishing low to mid severity fire cycles in ecosystems. Although treatments can potentially modify fire behavior and ecological health, they generally cannot prevent fires from igniting, eliminate …
Fishing Out Nutrients: The Spatiotemporal And Ecological Dynamics Of Fishery-Based Nutrient Extraction, Adrián A. González Ortiz
Fishing Out Nutrients: The Spatiotemporal And Ecological Dynamics Of Fishery-Based Nutrient Extraction, Adrián A. González Ortiz
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Marine fisheries are one of the most impactful human activities on the planet. Since the 1950s, marine fisheries have removed billions of metric tons of marine biomass leading to substantial declines in many fish populations. Among their impacts, we have begun to investigate the role of fisheries in disrupting marine nutrient cycles. Specifically, removing biomass can change nutrient cycles by reducing the amount of nutrients stored within animal biomass.
No studies have investigated the large-scale geographical and ecological contexts of nutrient removal by fisheries over a large timescale. For my thesis, we compiled data on fishery-targeted organisms' carbon, nitrogen, and …
A Mechanistic Examination Of Interspecific Competition Between Wild And Domestic Herbivores, Courtney Check
A Mechanistic Examination Of Interspecific Competition Between Wild And Domestic Herbivores, Courtney Check
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Large herbivores, such as mule deer and cattle have similar life histories and likely compete for resources. However, quantifying the extent to which these species compete and the specific resources they compete for has proved challenging. My research examines if cattle influence deer abundance and behavior due to competition for forage, competition for shade, and/or by affecting the predation risk of deer. Using a grid of autonomous trail cameras, I was able to determine if cattle abundance influences local deer abundance in relation to specific resources and habitat features. Using GPS data from collared deer, I was also able to …
Quantifying The Impacts And Assessing The Permeability Of A Divided Four-Lane Highway On Migratory Mule Deer, Daniel P. Taylor
Quantifying The Impacts And Assessing The Permeability Of A Divided Four-Lane Highway On Migratory Mule Deer, Daniel P. Taylor
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Increased human development and expansion has led to an ever-growing transportation network, which has both direct and indirect ecological impacts to local wildlife populations. In response, wildlife crossing structures have become an increasingly fundamental component of wildlife conservation throughout the United States. The focus of this study was a 13.5 km section of US Highway 395, Mono County, California. The California Department of Transportation recently identified this section of highway, hereafter known as the Mammoth Wildlife Crossing, as the highest priority location for wildlife crossing structures along US 395 within Mono County. The goal of this study was to use …
An Evaluation Of Stress Tolerance In Restoration Plant Species In Response To Fire, Drought, And Invasive Plants Through The Lens Of Functional Traits, Adam M. Clifford
An Evaluation Of Stress Tolerance In Restoration Plant Species In Response To Fire, Drought, And Invasive Plants Through The Lens Of Functional Traits, Adam M. Clifford
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Sagebrush communities in the Great Basin face many threats. Cheatgrass, a winter annual from Eurasia, has invaded these communities, increasing wildfire and lowering species diversity. Additionally, climate models project warmer and drier conditions throughout much of the Great Basin, likely increasing drought, cheatgrass invasion, and wildfire. Intact stands of native and introduced perennial grasses have been shown to limit invasion by cheatgrass and restore ecosystem functions. The objective of this research was to identify the functional traits and growth characteristics needed by restoration species to survive periods of drought and to evaluate varieties of commonly used restoration species for establishment, …
Consumption Of A Western Diet Enhanced Colitis-Associated Colorectal Cancer And Dysbiosis Of The Fecal Microbiome In Mice Notwithstanding Dietary Intervention Or Fecal Microbiome Transfer, Daphne Michelle Rodriguez Jimenez
Consumption Of A Western Diet Enhanced Colitis-Associated Colorectal Cancer And Dysbiosis Of The Fecal Microbiome In Mice Notwithstanding Dietary Intervention Or Fecal Microbiome Transfer, Daphne Michelle Rodriguez Jimenez
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In a rodent model of inflammation-associated colorectal cancer, consumption of a Western-style diet increases gut inflammation and enhances risk of developing colon tumors. The goal of this dissertation was to understand the contribution of bacteria within the large intestine on colon inflammation and colon tumorigenesis. Two pre-clinical animal studies were performed using two different intervention strategies to shift the microbiome, and potentially gut inflammation and tumor development: 1) an experiment using dietary supplementation with black raspberries, a functional food enriched in bioactive anthocyanins with purported antiinflammatory activity, and 2) an experiment using fecal microbiota transfer from mice fed a healthy …
Water Conservation Through Drought-Resilient Landscape Plants And Deficit Irrigation, Ji-Jhong Chen
Water Conservation Through Drought-Resilient Landscape Plants And Deficit Irrigation, Ji-Jhong Chen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Increases in urban population and inadequate rainfall result in imbalanced water budgets in urban and sub-urban regions. Water conservation becomes important in urban landscapes because of increased water demands. Modern landscape designs require drought-resistant plants to maintain urban landscape greenness during water scarcity. Irrigating plants at their irrigation requirements, which is the minimum irrigation rate that can achieve acceptable aesthetic quality, can also conserve water. However, the drought tolerance and irrigation requrements of most landscape plants have not been widely evaluated. Shepherdia ×utahensis ‘Torrey’ (‘Torrey’ buffaloberry) and Penstemon species (beardtongues) are low-water-use landscape plants, but their drought resistance mechanisms are …
Anthropogenic Factors Affecting Common Raven Occurrence And Depredation Of Artificial Nests Within Greater Sage‐Grouse Habitat In Southern Utah, Zoë S. Moffett
Anthropogenic Factors Affecting Common Raven Occurrence And Depredation Of Artificial Nests Within Greater Sage‐Grouse Habitat In Southern Utah, Zoë S. Moffett
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Certain species of wildlife are more generalist and adaptive than others. These species often flourish when supported by human activities that provide additional food and habitat for them. The common raven (Corvus corax; hereafter raven) is one such species; their populations have risen and spread throughout the Intermountain West. As generalist scavengers and predators, ravens have been found to pose a severe threat to several threatened or sensitive species, including the greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse). The purpose of my research was to determine the specific anthropogenic and habitat factors that may increase the threat …
Insights Into The Characteristics Of Outdoor Recreationists In Utah From A Statewide Survey, Jordan W. Smith, Nate Trauntvein, Casey Trout
Insights Into The Characteristics Of Outdoor Recreationists In Utah From A Statewide Survey, Jordan W. Smith, Nate Trauntvein, Casey Trout
Environment and Society Faculty Publications
Understanding the characteristics and preferences of outdoor recreationists in Utah can inform the administrative, funding, and management decisions of the many entities who provide outdoor recreation opportunities within the state. There is currently a lack of data on characteristics, preferences, and opinions of the state’s outdoor recreating public. As one component of the analysis supporting the development of the state’s outdoor recreation strategic plan, we launched a short online survey to begin to address this need. The survey was administered in spring of 2023 to an online panel of individuals who indicated that they are current residents of Utah and …
Happy Or Sad? Quaking Aspen (Populus Tremuloides Michx.) On Cedar Mountain, Southern Utah, Jaycee Cappaert
Happy Or Sad? Quaking Aspen (Populus Tremuloides Michx.) On Cedar Mountain, Southern Utah, Jaycee Cappaert
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Quaking aspen forests are important communities in the western United States where they provide preferential food and habitat for animals, limit wildfires from spreading, and have favorable aesthetics, among other things. Their putative decline is an issue for ecology and management. We remeasured the aspen population on Cedar Mountain, Utah, to assess changes to its condition since it was originally surveyed in 2008. We found that the area comprised of stable aspen (>80% aspen) decreased from 84.3% to 69.7%. The amount of mortality has increased slightly over the last decade, but crown dieback has stayed virtually identical. Additionally, the …