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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

FLORIDA PANTHER AND BLACK BEAR: A ROAD AND URBAN AVOIDANCE/UTILIZATION ANALYSIS AND IMPACTS OF LAND USE AND CLIMATE CHANGE ON LARGE CARNIVORE HABITAT IN FLORIDA

Whittle, Andrew James 01 January 2009 (has links)
Florida is expanding its urban borders into areas of the native habitat. Increased expansion is predicted through the next several decades. Several sections of the state are home to large carnivores, such as Florida panther and black bear, which are important to ecosystem function. Expansion of roads and urban centers will greatly reduce the quality and quantity of carnivore habitat. In this study, I used Euclidean distance analyses and very high frequency (VHF) telemetry points to produce distance categories in which carnivores either have a negative/neutral/positive association with roads and urban centers. The seven black bear populations followed four different trends: 1) Slight avoidance of roads and urban centers, 2) strong avoidance of roads and urban centers, 3) neutrality toward roads and urban centers, and 3) one population with a positive association of roads. Florida panther showed strong avoidance to roads and urban centers. Finally I modeled Florida panther and black bear habitat using Maximum Entropy Species Distribution software and placed future urban expansion and sea level incursions associated with climate change over the habitat to find high priority conservation areas.
2

Conquest and Conversion in Islamic Period Iberia (A.D. 711-1490): A Bioarchaeological Approach

January 2017 (has links)
abstract: This dissertation research employs biological distance and mortuary analyses in tandem with historical sources to investigate the degree to which conversion, as opposed to migration, contributed to the spread of Islam in southern Iberia. The dynamics of the 8th century conquest of Iberia by Muslim Arab and Berber forces from North Africa, and the subsequent 800-year period of religious, political, and social change, remain contested and poorly understood. Migration of Islamic peoples to the peninsula once was invoked as the primary vehicle of Islamic influence, but religious conversion, whether true or nominal, increasingly is regarded as a key component of those changes. This dissertation proposes that conversion, whether a prelude to or a component of Islamization, altered social group affiliations and interactions among those living in southern Iberia. Such changes in social relations and the resultant patterns of mate exchange will be recognizable by means of altered biological patterns of phenotypic variation. Through the examination of ~900 individuals from both Iberian and North African skeletal collections, this study concludes that conquest resulted in a great increase in phenotypic variability in the peninsula from the 8th-11th centuries. The data further indicate that males contributed this phenotypic variability to the samples in the Early Conquest period. Females, most frequently from Hispano-Roman Christian groups, appear to have ‘intermarried’ with these early conquerors and with the Muwallads, male Islamic converts, and are included in the early Muslim burial programs. From the 11th to the 14th centuries, the data presented here demonstrate a stasis and even a slight decrease in phenotypic variability in southern Iberia, which may be explained by endogamy among religious groups in this region. / Dissertation/Thesis / Doctoral Dissertation Anthropology 2017
3

Geospatial Analysis of Care and Mortality in the 2014 Liberia Ebola Outbreak

Kinkade, Marion Carlton 01 January 2019 (has links)
The Ebola outbreak in West Africa in 2014 to 2016 had more than 28,000 suspected, probable, and confirmed cases. It was the largest Ebola outbreak in history. Of the 28,000 cases in the three Ebola-affected countries, Liberia had 10,000 cases with almost 5,000 deaths. The Ebola Virus Disease (EVD) entered Liberia along the border of Guinea and moved to the capital city of Monrovia where the virus spread. Ebola Treatment Units (ETUs) were constructed throughout the response in locations where there were available facilities versus distance to care challenges. This study examined the association of distance from villages to ETUs and mortality. Using Geographic Information System (GIS) and statistics framed within the Social Ecological Model and the GIS Framework, this study geolocated the Ebola cases by village, mapped the travel routes and calculated the distance to the ETU. A logistic regression was then used to determine if there was an association between distance and mortality, with and without controlling for age and gender, and, to calculate the odds ratio. A logistic regression model showed there is an association between distance and mortality and that Ebola patients living within 12 kilometers of the ETU were 1.8 times less at risk of mortality (OR = 1.778, 95% CI [1.171 - 2.7]) than those living more than 12 kilometers. In addition, males had a 1.4 times lower risk of death due to EVD. This understanding can inform future outbreak responses and placement of treatment units. In addition, this information can lead to social change with respect to individual understanding of access to care, community expectations, and national health care planning.

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