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Odocoileus hemionus (hemionus) on the North Rim of the Grand Canyon: a study of wildlife nutrition, metabolic response and interaction of the herd with the winter habitat on the north Kaibab Plateau

Description

A mule deer herd exists on the northern rim of the Grand Canyon, located on the North Kaibab Plateau. Historical references to this indigenous mule deer herd presented reports of periodic population irruption and collapse. Partially funded by the Arizona Game and Fish Department and the Arizona Deer Association, examination…

A mule deer herd exists on the northern rim of the Grand Canyon, located on the North Kaibab Plateau. Historical references to this indigenous mule deer herd presented reports of periodic population irruption and collapse. Partially funded by the Arizona Game and Fish Department and the Arizona Deer Association, examination of herd nutritional and metabolic status from the Fall 2005 - Spring 2008 was completed at the request of AzGFD and ADA. Habitat analysis included forage micro-histological, protein, and caloric content plus whole blood and plasma assays gauging herd metabolic response. Modelling was completed using best management practices wildlife energy demand calculations and principal component analysis. Forage quality analysis and modelling suggest a sufficient amount of nitrogen (N) available (DPI) to the deer for protein synthesis. Energy analysis (MEI) of forage suggest caloric deficiencies are widely prevalent on the north Kaibab plateau. Principal component analysis integrates forage and metabolic results providing a linear regression model describing the dynamics of forage utilization, energy availability, and forage nitrogen supply with metabolic demand and response of the mule deer herd. Most of the plasma and blood metabolic indicators suggest baseline values for the North Kaibab mule deer. Albumin values are in agreement with albumin values for mule deer in the Southwest. I suggest that the agreed values become a standard for mule deer in the Southwestern U.S. As excess dietary N is converted to a caloric resource, a continual state of under-nutrition exists for the deer upon entering the N. Kaibab winter range. The population is exceeding the nutritional resource plane that the winter habitat provides. Management recommendations include implementation of multiple small-scale habitat rehabilitation efforts over time, including invasive juniper (Juniperous osteosperma) and piñon (Pinus edulis) management, prescribed burning to control big sage (Artemesia tridentata) populations, and reseeding treated areas with a seed mix of native shrubs, grasses and forbs. I recommended that the population size of the North Kaibab deer herd is maintained at the current size with natural selection controlling growth, or the population be artificially reduced through increased hunting opportunities.

ContributorsActon, Matthew W (Author) / Miller, William H. (Thesis advisor) / Brady, Ward W. (Committee member) / Huffman, Holly (Committee member) / Arizona State University (Publisher)

Created2014

Optimization of an atmospheric carbon source for extremophile cyanobacteria

Description

This thesis examines the use of the moisture swing resin materials employed at the Center for Negative Carbon Emissions (CNCE) in order to provide carbon dioxide from ambient air to photobioreactors containing extremophile cyanobacteria cultured at the Arizona Center for Algae Technology and Innovation (AzCATI). For this purpose, a…

This thesis examines the use of the moisture swing resin materials employed at the Center for Negative Carbon Emissions (CNCE) in order to provide carbon dioxide from ambient air to photobioreactors containing extremophile cyanobacteria cultured at the Arizona Center for Algae Technology and Innovation (AzCATI). For this purpose, a carbon dioxide feeding device was designed, built, and tested. The results indicate how much resin should be used with a given volume of algae medium: approximately 500 grams of resin can feed 1% CO2 at about three liters per minute to a ten liter medium of the Galdieria sulphuraria 5587.1 strain for one hour (equivalent to about 0.1 grams of carbon dioxide per hour per seven grams of algae). Using the resin device, the algae grew within their normal growth range: 0.096 grams of ash-free dry weight per liter over a six hour period. Future applications in which the resin-to-algae process can be utilized are discussed.

ContributorsBeaubien, Courtney (Author) / Lackner, Klaus (Thesis advisor) / Lammers, Peter (Committee member) / Atkins, Steve (Committee member) / Arizona State University (Publisher)

Created2016

White Space Utilization Policy

Description

This project analyzed the utilization rates of respective factories for Company X compared to the Manufacturing Utilization Policy to identify discrepancies in the policy baseline trigger and when the factories are ramped to full utilization. The current policy bases three different factory types, ATM, DS/DP, and FSM all on the…

This project analyzed the utilization rates of respective factories for Company X compared to the Manufacturing Utilization Policy to identify discrepancies in the policy baseline trigger and when the factories are ramped to full utilization. The current policy bases three different factory types, ATM, DS/DP, and FSM all on the same baseline of FSM. This was originally set in place from a lack of sufficient data for the other factories and now that there is enough data to identify the utilization rates of each factory type, a more suitable baseline for each can be determined. If continuing to use the FSM baseline, Company X will be designating certain factories as underutilized, triggering the manufacturing utilization policy and inefficiently allocating the building expenses, thus increasing the cost per unit of products produced.

ContributorsMicheels, Jordan (Author) / Tang, Tuan (Co-author) / Harris, Olivia (Co-author) / Simonson, Mark (Thesis director) / Hertzel, Michael (Committee member) / Barrett, The Honors College (Contributor) / Department of Finance (Contributor)

Created2022-05

White Space Utilization Policy

Description

This project analyzed the utilization rates of respective factories for Company X compared to the Manufacturing Utilization Policy to identify discrepancies in the policy baseline trigger and when the factories are ramped to full utilization. The current policy bases three different factory types, ATM, DS/DP, and FSM all on the…

This project analyzed the utilization rates of respective factories for Company X compared to the Manufacturing Utilization Policy to identify discrepancies in the policy baseline trigger and when the factories are ramped to full utilization. The current policy bases three different factory types, ATM, DS/DP, and FSM all on the same baseline of FSM. This was originally set in place from a lack of sufficient data for the other factories and now that there is enough data to identify the utilization rates of each factory type, a more suitable baseline for each can be determined. If continuing to use the FSM baseline, Company X will be designating certain factories as underutilized, triggering the manufacturing utilization policy and inefficiently allocating the building expenses, thus increasing the cost per unit of products produced.

ContributorsTang, Tuan (Author) / Micheels, Jordan (Co-author) / Harris, Olivia (Co-author) / Simonson, Mark (Thesis director) / Hertzel, Michael (Committee member) / Barrett, The Honors College (Contributor) / Department of Finance (Contributor) / Thunderbird School of Global Management (Contributor) / Department of Economics (Contributor)

Created2022-05

Effective Utilization of HealthCare Resources: An Educational Intervention for Adult Patients

Description

Over the last ten years, a dramatic increase in Emergency Department (ED) visits has been prominent. Non-emergent chief complaints, such as repeat chronic care needs, are causing increased ED visits. The underutilization of primary care resources has been correlated with the overutilization of emergency care resources. ED overutilization is having…

Over the last ten years, a dramatic increase in Emergency Department (ED) visits has been prominent. Non-emergent chief complaints, such as repeat chronic care needs, are causing increased ED visits. The underutilization of primary care resources has been correlated with the overutilization of emergency care resources. ED overutilization is having a negative rippling effect on the ability of the US healthcare system to care for patients. Emergency department personnel and other resources are strained, leading to overcrowding and decreased quality of care. Health insurance and provider accessibility has been linked to the high rates of ED usage by adults age 18 – 64, with the highest rates seen in those under public health coverage, such as Medicaid, compared to those who were uninsured. To encourage primary care visits and discourage non-emergent ED usage, the United States health system includes patient education on the appropriate ED use, higher-copayment as financial disincentives, and encouragement of provider-patient relationships with Primary care providers (PCP). The public health clinics, including Federally Qualified Health Centers, provide patient education on the appropriate use of PCP versus ED resources, and offer extended office hours during evenings and weekends; trimming the rate of non-emergent ED visits can significantly reduce health care costs.

ContributorsMarcus, Toyin (Author) / Ochieng, Dr. Judith (Author, Thesis advisor)

Created2019-05-04