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Evaluation Of Noninvasive Methods For Determining Pregnancy, Diet, Nutrition, And Stress Among Pronghorn Antelope: Implications For Population Monitoring, Cole Bleke
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study was conducted to increase our understanding of the influence of adult female pronghorn (Antilocapra americana) physiology on fawn summer survival. Pronghorn are a valued big game animal in Idaho, but are particularly sensitive to capture; therefore, we designed a noninvasive fecal sampling study to measure pregnancy (progesterone and estrogen), diet, nutrition (fecal nitrogen and DAPA), and stress (cortisol), during metabolically-demanding female life history stages (late gestation, early lactation, and breeding season). We also compared survey results between ground and aerial methods within mountain valley landscapes.
Pregnancy determination, via progesterone, is possible for pronghorn, but sample collection …
Measuring Stress-Induced Hormone Levels In Dusky Grouse, Dominique Davis
Measuring Stress-Induced Hormone Levels In Dusky Grouse, Dominique Davis
Student Research Symposium
Very little is known ecologically about dusky grouse, an understudied upland game bird that is found throughout western North America. They are commonly hunted without comprehensive knowledge of their ecological importance, physiology, and life history. Our study is focused on dusky grouse that inhabit the eastern Great Basin ranges in White Pine County, Nevada where the landscape is predominantly open sagebrush valleys and patchy montane habitats. This species has adapted to living in this harsh, arid environment that is influenced by hot, dry summers and cold, snowy winters. Stressors such as changes in climate, human interference, predation, habitat fragmentation, and …
Effects Of Premortem Stress On Heat Shock Protein Abundance, Oxidation, And Color In The Longissimus Lumborum Of Holstein Steers Following Harvest, Reganne K. Briggs
Effects Of Premortem Stress On Heat Shock Protein Abundance, Oxidation, And Color In The Longissimus Lumborum Of Holstein Steers Following Harvest, Reganne K. Briggs
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Consumers consider tenderness and steak color to be two important attributes associated with meat quality. However, inconsistencies in both tenderness and steak color remain despite similar production practices of beef cattle. Stressful events before harvest may impact meat quality by initiating certain pathways such as abundance of heat shock proteins (HSP) and oxidation within the skeletal muscle. Heat shock proteins have been associated with tenderness while oxidation may affect steak color and flavor. In this study, 40 Holstein steers were administered adrenocorticotrophic hormone (ACTH) to mimic a stressful event before harvest. Animals were harvested at different times following the ACTH …
Investigating The Relationship Between Corticosterone And Glucose In A Reptile, Lorin A. Neuman-Lee, Spencer B. Hudson, Alison C. Webb, Susannah S. French
Investigating The Relationship Between Corticosterone And Glucose In A Reptile, Lorin A. Neuman-Lee, Spencer B. Hudson, Alison C. Webb, Susannah S. French
Biology Faculty Publications
The glucocorticoid hormone corticosterone (CORT) has classically been used in ecophysiological studies as a proxy for stress and energy mobilization, but rarely are CORT and the energy metabolites themselves concurrently measured. To examine CORT's role in mobilizing glucose in a wild reptile, we conducted two studies. The first study measured natural baseline and stress-induced blood-borne CORT and glucose levels in snakes during spring emergence and again when snakes return to the denning sites in autumn. The second study manipulated the hypothalamic–pituitary–adrenal (HPA) axis in male snakes in the autumn by taking a baseline blood sample, then subjecting individuals to one …
Mindfulness For Chronic Pain Management, Maren Wright Voss, Kandice Atisme, Ashley Yaugher, Sandra H. Sulzer
Mindfulness For Chronic Pain Management, Maren Wright Voss, Kandice Atisme, Ashley Yaugher, Sandra H. Sulzer
All Current Publications
Chronic pain often occurs even after healing in the injury site because of changes in the way the brain perceives pain. Mindfulness is a simple mental activity, proven to reduce pain and the need for pain medication. Mindfulness increases the ability to mentally regulate pain, emotion, and behavior, alters the way the brain processes rewards, and restores positive feelings. Mindfulness can be learned in a class or at home and is an accessible alternative for managing pain.
Landscape Of Stress: Does Drought Prevail Over Anthropogenic Activity In Influencing Cortisol Levels And Fitness In The Pacific Fisher?, Jennifer R. Kordosky
Landscape Of Stress: Does Drought Prevail Over Anthropogenic Activity In Influencing Cortisol Levels And Fitness In The Pacific Fisher?, Jennifer R. Kordosky
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Fishers (Pekania pennanti) are a species of concern in the Sierra Nevada Mountains of California. Cortisol is a glucocorticoid hormone released to mobilize energy in response to stress and has been used as an indication of an individual’s physiological response to its environment. By collecting samples of fisher hair and measuring an individual’s cortisol, we examined the physiological stress response of the animals to human disturbances (housing density, road density, habitat type, and silvicultural treatements) and drought (tree mortality) in their home ranges. Using AICc model selection, we found that levels of tree mortality within a fisher’s home …
Why Stress Management Strategies Work, Jennifer Viveros, David G. Schramm
Why Stress Management Strategies Work, Jennifer Viveros, David G. Schramm
All Current Publications
Stress is a universally-experienced phenomenon. Although there are myriad causes, the methods of effectively managing the stress are generally the same. Why do these strategies work though? This fact sheet addresses this question, citing what research has found about why these commonly suggested stress management strategies work. They are divided into physical, mental, and social categories of stress relievers.
Stress Vs. Anxiety: Understanding The Difference, Jennifer Viveros, David G. Schramm
Stress Vs. Anxiety: Understanding The Difference, Jennifer Viveros, David G. Schramm
All Current Publications
This fact sheet outlines the differences between normal day-to-day stress and persistent anxiety, and how to deal with them both.
Strategies For Dealing With Life's Difficulties, Jennifer Viveros, David G. Schramm
Strategies For Dealing With Life's Difficulties, Jennifer Viveros, David G. Schramm
All Current Publications
This fact sheet outlines four healthy, effective approaches to coping with the challenges of life: eliminating overthinking, working from your strengths, taking time for self-care, and finding meaning in your experiences.
Consequences Of Porcine Zona Pellucida Immunocontraception To Feral Horses, Cassandra M.V. Nuñez
Consequences Of Porcine Zona Pellucida Immunocontraception To Feral Horses, Cassandra M.V. Nuñez
Human–Wildlife Interactions
Porcine zona pellucida (PZP) immunocontraception was developed to provide a more humane, effective, and inexpensive method of population regulation for wildlife species. It has been used to regulate populations of several species including white tailed deer (Odocoileus virginianus), elk (Cervus elaphus ), black bear (Ursus americanus ), and the feral horse (Equus ferus caballus) with varying levels of success. Early studies on Assateague Island National Seashore, Maryland, USA, suggested PZP was as an ideal form of fertility control because it reduced the likelihood of conception to
Tips For Tackling Stress, Kailee Hansen, David G. Schramm
Tips For Tackling Stress, Kailee Hansen, David G. Schramm
All Current Publications
This fact sheet provides tips and strategies for tackling stress. Just as there are different kinds of stressors, there are different ways of managing stresses and some ways are healthier than others, as described in the fact sheet.
Interacting Stressors And The Potential For Adaptation In A Changing World: Responses Of Populations And Individuals, Gareth R. Hopkins, Susannah S. French, Edmund D. Brodie Jr.
Interacting Stressors And The Potential For Adaptation In A Changing World: Responses Of Populations And Individuals, Gareth R. Hopkins, Susannah S. French, Edmund D. Brodie Jr.
Biology Faculty Publications
To accurately predict the impact of environmental change, it is necessary to assay effects of key interacting stressors on vulnerable organisms, and the potential resiliency of their populations. Yet, for the most part, these critical data are missing. We examined the effects of two common abiotic stressors predicted to interact with climate change, salinity and temperature, on the embryonic survival and development of a model freshwater vertebrate, the rough-skinned newt (Taricha granulosa) from different populations. We found that salinity and temperature significantly interacted to affect newt embryonic survival and development, with the negative effects of salinity most pronounced …
Psychological Stress Among Risks For Alzheimer's Disease, Maria C. Norton, Elizabeth B. Fauth
Psychological Stress Among Risks For Alzheimer's Disease, Maria C. Norton, Elizabeth B. Fauth
All Current Publications
This fact sheet defines stress, stressors and reaction to them, what stress does to our brain and body, and how stress effects can accumulate over time. It also includes tips on reducing the effects of stress on the brain.
Coping Mechanisms And Level Of Occupational Stress Among Agriculture Teachers And Other Teaching Populations, Kasee L. Smith
Coping Mechanisms And Level Of Occupational Stress Among Agriculture Teachers And Other Teaching Populations, Kasee L. Smith
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Teacher stress has been a concern in educational research for several decades. This research sought to identify the specific coping methods which Utah agriculture and non-agriculture teachers utilize to manage potentially stressful events, and to determine if differences exist in the coping mechanisms used between agriculture teacher and non-agriculture teacher groups.
Results showed that agriculture teachers showed a greater level of occupational stress than non-agriculture teachers. It was also concluded that occupational stress for the two teaching groups came from different sources. In regard to the agriculture teacher group, certain demographic characteristics that led to a higher frequency of use …
Carbon Allocation In Aspen Clones Varying In Ozone Sensitivity, M.D. Coleman, R.E. Dickson, J.G. Isebrands, D.F. Karnosky
Carbon Allocation In Aspen Clones Varying In Ozone Sensitivity, M.D. Coleman, R.E. Dickson, J.G. Isebrands, D.F. Karnosky
Aspen Bibliography
No abstract provided.
The Effects Of Calcium On The Response Of Snapbean To Sodium-Induced Stress, Masud Ahmad Khan
The Effects Of Calcium On The Response Of Snapbean To Sodium-Induced Stress, Masud Ahmad Khan
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Soil salinity is a major concern to agriculture in arid and semiarid regions, where evapotranspiration causes salts originating from irrigation water (or sometimes naturally from the soil) to become concentrated in the rooting zone. In some areas, with good management, it has been economically feasible to ameliorate a sodic soil with Ca. The objective of this study was to investigate the effects of Ca amelioration of salinity (sodicity) on biomass, number of nodules, number of pods, weight of pods, ion uptake, and photosynthesis of Phaseolus vulgaris L.
Plants were grown in one liter styrofoam pots under greenhouse conditions. In the …
A Seasonal Comparison Of Metabolic And Water Loss Rates Of Three Species Of Grasshoppers, Lynn J. Forlow, James A. Macmahon
A Seasonal Comparison Of Metabolic And Water Loss Rates Of Three Species Of Grasshoppers, Lynn J. Forlow, James A. Macmahon
Green Canyon Environmental Research Area, Logan Utah
1. 1. Seasonal differences in metabolic and water loss rates were examined in three related species of grasshoppers collected from shrub-steppe communities in Utah: Arphia conspersa, A. pseudonietana and
2. 2 cohorts of Trimerotropis pallidipennis. 2. No significant differences (P = 0.05) in metabolic rates were observed between seasons (early vs late), between genera (Arphia vs Trimerotropis) nor among species.
3. 3. Early season (spring) grasshoppers had a higher (but non-significant) mean water loss rate (±X ± SD in mg.g−1-hr−1) (4.81 ± 1.53) than late season (summer) grasshoppers (4.43 ± 1.43).
4. 4. Among species, early season A. conspersa had …
Cracks In Fossil Enamels Resulting From Premortem Vs. Postmortem Events, John M. Rensberger
Cracks In Fossil Enamels Resulting From Premortem Vs. Postmortem Events, John M. Rensberger
Scanning Microscopy
Vertebrate enamel preserves a record of fracture-producing strain. Fracturing during the life of the individual is potentially a source of selection for stronger enamel in the course of evolution. To determine if it is possible to recognize such fractures in fossil enamel, cracks in a variety of fossil materials, including enamel-covered holostean scales, crocodilian teeth, theropod and hadrosaurid dinosaur teeth, and mammalian teeth were examined. Cracks that occurred during the life of the individual could be recognized by abrasive wear on edges exposed at the surface of the enamel in areas worn by oral or locomotor abrasion. Certain distinctive crack …
Mapping Solid Surfaces With A Raman Microprobe, P. M. Fauchet
Mapping Solid Surfaces With A Raman Microprobe, P. M. Fauchet
Scanning Electron Microscopy
By combining an optical microscope with a standard Raman scattering apparatus, information on the structure, composition, homogeneity, and stress state of solids can be obtained with one micron resolution. After a discussion of the advantages and implementation of the technique, we examine specific applications mostly taken from our own work dealing with laser-solid interactions. In particular, we examine the structural modifications produced during laser annealing of semiconductors and laser induced damage of thin films.
The Interaction Of Ultraviolet-B Radiation Stress And Plant Competition In Agricultural Plant Populations, Warren Glenn Gold
The Interaction Of Ultraviolet-B Radiation Stress And Plant Competition In Agricultural Plant Populations, Warren Glenn Gold
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The effect of ultraviolet-B radiation enhancement upon the competitive interactions of two species pairs was studied in the field. Wheat (Triticum aestivum L. 'Bannock') was paired with wild oat (Avena fatua L.) and jointed goatgrass (Aegilops cylindrica Host) to represent competition between species pairs in agricultural situations. Specially modulated ultraviolet lamp systems provided either low ultraviolet-B enhancement (simulation of a 16 % ozone layer reduction based upon the generalized plant action spectrum), high ultraviolet-B enhancement (40 % ozone reduction) or control (ambient solar ultraviolet-B) irradiance.
Ultraviolet-B radiation enhancement significantly altered the competitive interactions of the species pairs. …
Physiological Response To Hooking Stress In Largemouth Bass (Micropterus Salmoides), A. Wayne Gustaveson
Physiological Response To Hooking Stress In Largemouth Bass (Micropterus Salmoides), A. Wayne Gustaveson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Recent concern about large initial and delayed mortalities resulting from tournament angling for largemouth bass has indicated that it would be desirable to further evaluate the fate of fish that are released after being captured by angling. This study was designed to evaluate sublethal physiological disruptions caused by hooking stress after largemouth bass were played under standardized conditions (0-5 minutes) and to estimate the time needed for recovery of the homeostatic mechanisms (to 72 hours). Blood lactate was used as a measure of metabolic fatigue; plasma osmolality and chloride measurements were used to evaluate osmoregulatory disturbances and gill ion-exchange; and …