Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Brigham Young University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1 - 30 of 2055

Full-Text Articles in Life Sciences

Frost450, A Novel Microtubule Targeting Agent: Resistance And Cross-Resistance In An Ovarian Cancer Cell Line, Jonathan Chancellor Fox Dec 2018

Frost450, A Novel Microtubule Targeting Agent: Resistance And Cross-Resistance In An Ovarian Cancer Cell Line, Jonathan Chancellor Fox

Undergraduate Honors Theses

Drug resistance remains problematic for chemotherapy treatments. As primary treatment strategies tend to lose potency against cancer, there is a need for treatment options that overcome drug resistance mechanisms. FROST450, a novel microtubule destabilizing agent, has proven anticancer effects that overcome taxane and multidrug resistance. However, to better understand the clinical potential of FROST450, in this study we examine the mechanisms and implications of acquired FROST450 resistance in an A2780 ovarian cancer cell line. Results indicate FROST450 resistance is associated with increased mitochondrial respiration and with changes in gene sequence or expression level of proteins associated with microtubules, and that ...


Pornography’S Effect On The Brain: A Review Of Modifications In The Prefrontal Cortex, Kendra J. Muller Nov 2018

Pornography’S Effect On The Brain: A Review Of Modifications In The Prefrontal Cortex, Kendra J. Muller

Intuition: The BYU Undergraduate Journal in Psychology

Pornography use has exponentially increased in the past 10 years. Most believe pornography use is largely a harmless behavior. Although sexuality is innate, hyper-sexual behavior, such as pornography use, has become increasingly commonplace. Addiction research has found that long-term substance addiction contributes to changes in brain volume (Hong et al., 2013; Zhou et al., 2011). Recent studies have shown that behavioral addictions also have similar volume loss as substance abuse (Hong et al., 2013). Research has shown that the particular area most affected is the prefrontal cortex (Hong et al., 2013). The prefrontal cortex, which oversees regulating self-control, decreases in ...


Using Non Stem-Cells To Understand Early Tumor Growth, Jake Hogan, Heiko Enderling, Joel Brown, Robert A. Gatenby Sep 2018

Using Non Stem-Cells To Understand Early Tumor Growth, Jake Hogan, Heiko Enderling, Joel Brown, Robert A. Gatenby

Library/Life Sciences Undergraduate Poster Competition 2018

Tumors of similar size and shape can exhibit different responses to the same treatment. Targeted therapy aims to better treat these tumors by classifying them according to genotypic traits. A better understanding of how tumor traits such as non-stem cells influence tumor growth could improve targeted therapy. We hypothesize that the production of non-stem cells may aid tumor growth in avascular tumors (tumors lacking blood vessels).


Composition Of The Community Of Small Mammals In The Great Basin Desert, Samantha Elizabeth Phillips Aug 2018

Composition Of The Community Of Small Mammals In The Great Basin Desert, Samantha Elizabeth Phillips

All Theses and Dissertations

Small mammals are a keystone guild in arid ecosystems; often exhibiting top-down control of the diversity and structure of plant communities. However, changing climate, shifting fire regimes, and the invasion of exotic plants are modifying the structure of arid systems. Environmental changes in these arid systems are likely altering small mammal communities, and therefore, their ecological role. We examined two aspects of the community composition of small mammals in the Great Basin: changes in community composition since large scale sampling of the region began in 1930, and the current population of a sensitive species of small mammal, the dark kangaroo ...


The Effects Of Ice And Tens Combination Treatment On Knee And Hip Joint Neuromechanics In Individuals With Experimentally Induced Knee Pain During Running, Sunku Kwon Aug 2018

The Effects Of Ice And Tens Combination Treatment On Knee And Hip Joint Neuromechanics In Individuals With Experimentally Induced Knee Pain During Running, Sunku Kwon

All Theses and Dissertations

Context: Knee injury is a common problem for runners. Knee pain is a common symptom in knee injury and is associated with alterations in knee and hip muscle activation and hip joint angles. Relieving pain through intervention may help to restore neuromuscular function. Objective: To examine the effects of ice and transcutaneous electrical nerve stimulation (TENS) combination treatment on perceived knee pain, hip frontal plane angle, and muscle activation during running in individuals with experimental knee pain (EKP). Design: Crossover. Setting: Laboratory. Subjects: 19 participants (11 males and 8 females, 23.2 ± 1.9 y, 176 ± 11.6 cm, 71 ...


Identifying The 5’End Of The Camta1 Genes In Zebrafish, Morgan Fronk Jul 2018

Identifying The 5’End Of The Camta1 Genes In Zebrafish, Morgan Fronk

Undergraduate Honors Theses

Congenital heart diseases (CHDs) are a significant cause of infant death and are frequently caused by mutations in transcription factors. Camta1 (calmodulin binding transcription activator 1) is a transcription factor that has been proposed as a modulator in embryonic heart development and a possible cause of CHDs. The only other known member of its family in vertebrates is involved in activating a hypertrophy gene program in adult heart failure. Unlike camta2, camta1 is expressed in the embryonic heart during heart looping. However, few studies have been done on camta1. In zebrafish, there are two camta1 ohnologs (homologs created through a ...


Bacteriophages For Treating American Foulbrood And The Neutralization Of Paenibacillus Larvae Spores, Thomas Scott Brady Jul 2018

Bacteriophages For Treating American Foulbrood And The Neutralization Of Paenibacillus Larvae Spores, Thomas Scott Brady

All Theses and Dissertations

The causative agent of the most devastating honeybee disease, American foulbrood (AFB), is the spore-forming bacterium Paenibacillus larvae. To prevent AFB outbreaks beekeepers prophylactically treat their hives with antibiotics even though it decreases the overall health of uninfected hives. A new treatment for AFB is needed due to recent legislation against using antibiotics, antibiotic resistance developing in P. larvae, and the resilience of P. larvae spores. Bacteriophages, or phages, are an attractive alternative to traditional antibiotics because of their specificity and ability to evolve alongside their target bacterium. In this study, two phage cocktails were developed for the treatment of ...


Passive Hallux Adduction Decreases Blood Flow To Plantar Fascia, Julia Lorene Dunbar Jul 2018

Passive Hallux Adduction Decreases Blood Flow To Plantar Fascia, Julia Lorene Dunbar

All Theses and Dissertations

Purpose: Due to the vital role that blood flow plays in maintaining tissue health, compromised blood flow can prevent effective tissue healing. An adducted hallux, as often seen inside a narrow shoe, may put passive tension on the abductor hallucis, consequently compressing the lateral plantar artery (LPA) into the calcaneus and thus restricting blood flow. The purpose of this study was to compare blood flow within the LPA before and after passive hallux adduction (PHA). Methods: Forty-five healthy volunteers (20 female, 25 male; age = 24.8 ± 6.8 yr; height = 1.7 ± 0.1 m; weight = 73.4 ± 13.5 ...


Genetic Basis For Elevated Rheumatic Heart Disease Susceptibility In Samoa, John Bowen Allen Jul 2018

Genetic Basis For Elevated Rheumatic Heart Disease Susceptibility In Samoa, John Bowen Allen

All Theses and Dissertations

Rheumatic heart disease is an inflammatory heart disease that affects millions of people around the world. Especially high rates of the disease can be found in Oceania, including the island nation of Samoa. Genetic studies of immune response genes have provided insight into a possible genetic link to increased susceptibility to rheumatic heart disease, including the genes that code for the toll-like receptor (TLR) protein family. One of the functions of TLR proteins is to recognize the presence of bacteria via identification of bacterial flagella. My evaluation of a Samoan family identified a variant in the TLR-5 gene that would ...


The Diversity Found Among Carbapenem-Resistant Bacteria, Galen Edward Card Jul 2018

The Diversity Found Among Carbapenem-Resistant Bacteria, Galen Edward Card

All Theses and Dissertations

This work will look at two factors that add to the diversity of carbapenem resistant bacteria. First, it focuses on the diversity of carbapenemase resistance plasmids. 446 plasmids were characterized by size, gene content and replicon groups. We identified that on average, over 30% of the encoded proteins on each plasmid have an unknown function. Plasmid sizes ranged from 1.6kb to 500kb, with an average of around 100kb and median of 80kb. Additionally, six replicon groups account for 80% of all the carbapenemase resistance plasmids. We also highlight the lack of data available for carbapenemase carrying plasmids from bacterial ...


Gait Alterations And Plantar Pressure In Diabetic Peripheral Neuropathy: A Preliminary Study, Adrienne Dora Henderson Jul 2018

Gait Alterations And Plantar Pressure In Diabetic Peripheral Neuropathy: A Preliminary Study, Adrienne Dora Henderson

All Theses and Dissertations

Background: Despite a lack of consensus on its utility, clinicians have traditionally relied on plantar pressure (PP) to predict ulcer risk and prescribe interventions in individuals with diabetic peripheral neuropathy (DPN). Joint kinematics and kinetics have the potential to contribute to DPN assessment and treatment, however previous studies have not accounted for walking speed nor integrated a full-body analysis with a detailed foot model. Purpose: To assess PP and gait alterations in DPN by controlling walking speed and incorporating a multisegment foot model into a full-body gait analysis. We hypothesize that hip and ankle kinetics will be altered consistent with ...


Control Of Redundant Pointing Movements Involving The Wrist And Forearm, Garrett R. Dorman, Kevin C. Davis, Allan W. Peaden, Steven K. Charles Jun 2018

Control Of Redundant Pointing Movements Involving The Wrist And Forearm, Garrett R. Dorman, Kevin C. Davis, Allan W. Peaden, Steven K. Charles

All Faculty Publications

The musculoskeletal system can move in more ways than are strictly necessary, allowing many tasks to be accomplished with a variety of limb configurations. Why some configurations are preferred has been a focus of motor control research, but most studies have focused on shoulder-elbow or whole-arm movements. This study focuses on movements involving forearm pronation-supination (PS), wrist flexion-extension (FE), and wrist radial-ulnar deviation (RUD), and elucidates how these three degrees of freedom (DOF) combine to perform the common task of pointing, which only requires two DOF. Although pointing is more sensitive to FE and RUD than to PS and could ...


Synthesis Of Candidate Natural Killer T Cell Ligands, Teron Haynie, Shenglou Deng, Paul B. Savage Jun 2018

Synthesis Of Candidate Natural Killer T Cell Ligands, Teron Haynie, Shenglou Deng, Paul B. Savage

Undergraduate Honors Theses

Natural Killer T (NKT) cells are a subset of T cells that express an invariant T cell receptor (TCR) that recognizes lipid antigens in context of the CD1d molecule. CD1d presents both exogenous and endogenous glycolipids on the surface of antigen presenting cells (APCs). Multiple exogenous lipids capable of NKT cell stimulation have been characterized, but confirmed endogenous ligands are relatively few in number. Recently, a-galactosylceramides were shown to be endogenous NKT cell ligands. We have observed that a-galactosylceramides cyclize in acidic conditions. Since the biosynthetic pathway of lipid presentation via CD1d likely passes through the acidic lysosome, we propose ...


Biotic Filtering In Endophytic Fungal Communities, Kevin Daniel Ricks Jun 2018

Biotic Filtering In Endophytic Fungal Communities, Kevin Daniel Ricks

All Theses and Dissertations

Plants can be colonized by complex communities of endophytic fungi. This thesis presents two studies, both of which investigate biotic filtering in endophytic fungal communities. Chapter 1. Endophytic fungi can be acquired horizontally via propagules produced in the environment such as in plant litters of various species. Given that litters from different plant species harbor distinct endophytic fungal communities and that endophytic fungi may be dispersal-limited, the structure of the endophytic fungal community of a given plant may be determined by proximity to particular inoculum sources. Community assembly may also be affected by biotic filtering by the plant. Therefore, a ...


Exploration Of The Gossypium Raimondii Genome Using Bionano Genomics Physical Mapping Technology, Christopher Jon Hanson Jun 2018

Exploration Of The Gossypium Raimondii Genome Using Bionano Genomics Physical Mapping Technology, Christopher Jon Hanson

All Theses and Dissertations

Cotton is a crop with a large global economic impact as well as a large, complex genome. Most industrial cotton production is from two tetraploid species (Gossypium hirsutum L. and Gossypium barbadense L.) which contain two subgenomes, specifically the AT and DT subgenomes. The DT subgenome is nearly half the size of the AT subgenome in tetraploid cotton and is closely related to an extant D-genome Gossypium species, G. raimondii Ulbr. Characterization of the structural variants present in diploid D-genome should provide greater insight into the evolution of the DT subgenome in the tetraploid cotton. Bionano (BNG) optical mapping uses ...


An Introductory Study Of Solid Materials For Capture And Catalysis Of Waste Stream Chemicals, Steven Kyle Butler Jun 2018

An Introductory Study Of Solid Materials For Capture And Catalysis Of Waste Stream Chemicals, Steven Kyle Butler

All Theses and Dissertations

Heterogeneous catalysts are key materials in research and industry. Herein we study two materials in different stages of development toward being applied as heterogeneous catalysts. First, MoO3SnO2 was synthesized and studied as a catalytic system similar to Sn-beta zeolites. While the Mo-based catalyst did not show similar activity to Sn-beta, it did show interesting reactivity in activating carbonyls and oxidizing organic substrates. Second, a method was developed for grafting amines onto carboxylic acid functionalized carbon nanotubes for CO2 capture. The method was successful for grafting monomer ethylamine groups onto CNT and can be further developed to allow for polymeric amine ...


Plane Of Energy Nutrition On Blood Metabolites, Milk Production And Lamb Growth In Friesian Sheep, Rebekah Paige Jensen Jun 2018

Plane Of Energy Nutrition On Blood Metabolites, Milk Production And Lamb Growth In Friesian Sheep, Rebekah Paige Jensen

All Theses and Dissertations

Small ruminant species are utilized for their diverse products including meat, dairy products, and wool. Effective and humane management are essential to maintain high production rates and comfortable animals. To attain this objective, managers needs to have an extensive knowledge of husbandry techniques, understanding of physiological processes, and familiarity with nutritional requirements. We examined the effects of varying feed components on two different ruminal species. In Chapter 1, we conducted a study to evaluate"¯the effects"¯of a low metabolizable energy (LME) and high metabolizable energy (HME) diet on twenty-two Friesian/Lacuane"¯cross ewes and lamb nutritional status."¯Effects on ...


Characterizing The Spatial Variation Of Crop Water Productivity For Variable-Rate Irrigation Management, Jeffrey David Svedin Jun 2018

Characterizing The Spatial Variation Of Crop Water Productivity For Variable-Rate Irrigation Management, Jeffrey David Svedin

All Theses and Dissertations

Irrigated agriculture is the primary consumer of limited worldwide freshwater resources. Drought, growing world populations, and environmental demands compete with irrigation for freshwater resources"”threatening sustainable global food, fuel, and fiber production. This escalating global crisis demands that agriculture produce more food using less water. Traditional irrigation management has used technology to apply uniform irrigation rates across landscapes"”ignoring natural environmental variation. This provides inherent inefficiencies of over- or under- irrigation within individual fields. Variable-rate irrigation (VRI) is modern technology that employs global positioning systems and geographic information systems to match irrigation to spatially variable crop water demands within a ...


Biomarker Analysis And Clinical Relevance Of Thymidine Kinase 1 In Solid And Hematological Malignancies, Evita Giraldez Weagel Jun 2018

Biomarker Analysis And Clinical Relevance Of Thymidine Kinase 1 In Solid And Hematological Malignancies, Evita Giraldez Weagel

All Theses and Dissertations

Despite the global effort to discover and improve ways to detect, treat, and monitor cancer, it still remains the second leading cause of death in the United States and poses a major health and economic burden worldwide. While traditional treatments like surgery, chemotherapy, radiation therapy, and hormone therapy have been successful and have decreased cancer mortality, cancer incidence in all sites continues to rise. Consequently, there is an immediate need to find new therapeutics for the treatment of cancer. In recent years, and with the continuing push towards personalized medicine, cancer biomarkers have become crucial to detect, treat, and monitor ...


Self-Regulation, Threat Perception, And Inhibitory Control: An Fmri Investigation Of Children With Adhd, Erin Kaseda May 2018

Self-Regulation, Threat Perception, And Inhibitory Control: An Fmri Investigation Of Children With Adhd, Erin Kaseda

Undergraduate Honors Theses

This thesis examines the role of perceived parental support on adolescents aged 12-19 who have been diagnosed with attention-deficit/hyperactivity disorder (ADHD). Specifically, the study focused on inhibitory control, one form of cognitive executive control often implicated in ADHD, in three ways: first, through the use of a Go/No-Go task during a functional MRI scan of the brain; second, through the use of a neuropsychological cognitive battery using the NIH Toolbox; and third, through a qualitative interview that examined self-control in school and home contexts. Contrary to the initial hypothesis, parental support was found to be negatively correlated with ...


Plant Functional Groups And Success In A Changing Environment: Modeling Physiological Niches Of Colorado Plateau Plants, Anne Thomas May 2018

Plant Functional Groups And Success In A Changing Environment: Modeling Physiological Niches Of Colorado Plateau Plants, Anne Thomas

Undergraduate Honors Theses

Quantifying the environmental and physiological niches of plant species is crucial to predicting their sensitivity to global change, and aggregating plant species by functional type is fundamental both to ecological theory and to the practicality of large-scale efforts to predict the consequences of global change. However, traditional functional types are not always predictive of individual species’ responses to change. Here, an inverse species distribution modeling approach is used to identify functionally similar species based on physiological niche in order to better anticipate the consequences of climate change on the Colorado Plateau, USA. The Colorado Plateau is a semiarid region particularly ...


Genomewide Evaluation Of Cis-Elements And Cognate Transcription Factors In Nicotiana Attenuata Predicts 27 Unique Transcription Factor-Binding Site Pairs, Ashton Omdahl May 2018

Genomewide Evaluation Of Cis-Elements And Cognate Transcription Factors In Nicotiana Attenuata Predicts 27 Unique Transcription Factor-Binding Site Pairs, Ashton Omdahl

Undergraduate Honors Theses

Nicotiana attenuata has been widely studied for its ecological plant-herbivore relationships and response to environmental stress. The jasmonate signaling pathway regulated by jasmonate ZIM-domiain (JAZ) repressor proteins that modulate defense response levels has been of particular focus in this research. While our understanding of the genes associated with defense response and their regulation continues to expand, the transcriptional regulation of these genes is largely uncharacterized. In an effort to provide insight into these relationships, we performed genomewide analysis of transcript level data in order to predict transcription factors (TFs), their respective binding sites (TFBS), and the genes they regulate. We ...


College Students’ Understandings Of, Perceptions Towards, And Usage Of Canned Foods Based On Exposure To Canned Foods During Childhood, Robert H. Drury, Lora Beth Brown, Pauline Williams, Dennis Eggett, Rickelle Richards May 2018

College Students’ Understandings Of, Perceptions Towards, And Usage Of Canned Foods Based On Exposure To Canned Foods During Childhood, Robert H. Drury, Lora Beth Brown, Pauline Williams, Dennis Eggett, Rickelle Richards

Undergraduate Honors Theses

ABSTRACT

Objective: To evaluate if frequent usage of canned foods in childhood households affected college students’ current understandings of, perceptions towards, and usage of canned foods.

Methods: A secondary data analysis was conducted based on data collected from students who completed The Perceptions and Use of Canned Foods questionnaire. ANOVA statistics were used to make comparisons between students exposed (ECF; n=65) and not exposed (NECF; n=237) to canned foods during childhood.

Results: Compared with NECF, the ECF more strongly agreed that canned foods counted towards United States’ dietary recommendations (p

Conclusions and Implications: Frequent usage of canned foods ...


A Thirsty Growing Idaho: Increasing The Fluidity Of Water Transfers In Idaho Assists Future Growth, Trevor Gruwell May 2018

A Thirsty Growing Idaho: Increasing The Fluidity Of Water Transfers In Idaho Assists Future Growth, Trevor Gruwell

Brigham Young University Prelaw Review

As with many other western states Idaho water law is based on “prior appropriation,” with a requirement that water be put to a “beneficial use.” In the transfer of a water right there are also expectations that no other water rights be injured in the process, and that there will not be an enlargement of the water right in question. Examining how these criteria relate to each other combined with incorporating practices from other western states will help avoid stagnation in Idaho’s water right transfer system. Ultimately a more fluid exchange of water rights will provide be beneficial for ...


Microbial And Co2 Responses To Water Stresses Show Decreased Productivity And Diversity Through Time, David Michael Robinson May 2018

Microbial And Co2 Responses To Water Stresses Show Decreased Productivity And Diversity Through Time, David Michael Robinson

All Theses and Dissertations

Some bacterial taxa when stimulated by water additions will break dormancy, grow, and become dominant members of the community and contribute significant pulses of CO2 associated with the rewetting event. These pulses of activity are associated with high levels of bacterial productivity in soils. (Aanderud et al. 2011) We examined the bacterial taxa that resuscitate and become metabolically active following two forms of water stress (soil drying-rewetting and freeze-thaw cycles) and we captured and measured the CO2 emanating from those soils. Specifically, We used target metagenomics, which uses a specific gene pool within bacteria that is associated with ...


Landscape Foundations: A Practical & Technical Guide To Landscape Maintenance, Marco Crosland Apr 2018

Landscape Foundations: A Practical & Technical Guide To Landscape Maintenance, Marco Crosland

Undergraduate Honors Theses

Many homeowners struggle to maintain healthy landscapes. Often, they simply don’t understand basic principles that, if followed, would make a significant difference in the health and appearance of their landscape. The hope of Landscape Foundations is to help homeowners maintain healthy and excellent landscapes by teaching these “correct principles”.

What makes Landscape Foundations different than other landscape guides is that it brings in current research and explains it in a simple way. This guidebook provides pictures and additional resources to explain landscape maintenance principles. It teaches both the practical and technical sides.

Landscape Foundations is written for both beginners ...


Testing The Potential Of Novel Grain Crop Cultivation In Rural Malawi During The Dry Season Through Irrigation And Soil Modification, Jessica Truman Apr 2018

Testing The Potential Of Novel Grain Crop Cultivation In Rural Malawi During The Dry Season Through Irrigation And Soil Modification, Jessica Truman

Undergraduate Honors Theses

This research project studied the germination and growth rates of oat and quinoa crops in Mtalimanja, Malawi. This project was part of a larger effort by General Mills and Brigham Young University researchers to increase the diversity and nutrient content of crops in impoverished countries worldwide. It was conducted from May to August 2017 during Malawi’s dry season. Tetraploid oats and quinoa, both modified to increase the protein content of harvested grains, were planted under three different soil conditions: unamended soil, soil mixed with composted chicken litter, and soil with surface-applied granular fertilizer. The research plots were watered daily ...


Differential Expression Of Mtor Related Molecules In The Placenta Of Patients With Gestational Diabetes Mellitus, Intrauterine Growth Restriction, Or Preeclampsia, Katherine Price, Brent Kimbler, Nekel Knowlton, Kelsey Hirschi, Paul Reynolds, Juan Arroyo Apr 2018

Differential Expression Of Mtor Related Molecules In The Placenta Of Patients With Gestational Diabetes Mellitus, Intrauterine Growth Restriction, Or Preeclampsia, Katherine Price, Brent Kimbler, Nekel Knowlton, Kelsey Hirschi, Paul Reynolds, Juan Arroyo

All Student Publications

The mechanistic target of rapamycin (mTOR) pathway is involved in placental growth and function during pregnancy. The mTOR pathway responds to nutrient availability and growth factors regulating protein transcription and cell growth. mTOR disruptions are associated with the development of obstetric complications which may result in adverse health outcomes for the mother and/or fetus. The purpose of this study is to identify the differing placental expression of various mTOR-associated proteins during normal gestation (Control), gestational diabetes mellitus (GDM), intrauterine growth restriction (IUGR) and preeclampsia (PE). Immunohistochemistry was used to stain human placenta for activated proteins (phospho; p)AKT, (p ...


Improving Post-Wildfire Seeding Success Using Germination Modeling And Seed Enhancement Technologies, William Charles Richardson Apr 2018

Improving Post-Wildfire Seeding Success Using Germination Modeling And Seed Enhancement Technologies, William Charles Richardson

All Theses and Dissertations

Arid and semi-arid rangelands are important ecosystems that are consistently degraded through disturbances such as wildfires. After such disturbances, the invasion and dominance of annual grasses, like cheatgrass (Bromus tectorum L.), can lead to an overall loss of ecosystem productivity and an increase in fire frequency. To reduce weed dominance, native and introduced perennials species are typically be seeded in the fall. High mortality is seen from these seeded plant communities due to germinated seed being exposed to freezing, drought, fungal pathogens, and other biotic and abiotic stressors during winter months. We utilized wet-thermal accumulation models to first further validate ...


Emerging Seed Enhancements To Reduce The Risk Of Sagebrush Post-Fire Seeding Failure, Ryan Scott Call Apr 2018

Emerging Seed Enhancements To Reduce The Risk Of Sagebrush Post-Fire Seeding Failure, Ryan Scott Call

All Theses and Dissertations

The sagebrush (Artemisia spp.) steppe is undergoing rapid ecological change. The degradation of sagebrush steppe rangelands has resulted in the listing of more than 350 animals and plants as species of conservation concern. In addition, there has been a decrease in recreational values, reduced forage production, degraded water resources, and an increase in fire frequency. In the sagebrush steppe, success rates for seeding sagebrush after wildfire are notoriously low. Not only are sagebrush seeds hard to sow due to their small size and associated flower parts, but seedlings are exposed to numerous stresses that lowers their survivability. To improve sowing ...