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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.
481

POPULATION LIMITATIONS OF THE FLORIDA APPLE SNAIL (POMACEA PALUDOSA)

Unknown Date (has links)
In this thesis I examined factors limiting population success of apple snails (Pomacea spp.) in Florida wetlands. First, I examined effects of summertime hydropattern in replicated wetlands on reproduction and juvenile growth. Annual reproductive effort of Florida apple snails (Pomacea paludosa) and the invasive apple snail P. maculata under was not affected by deeper water in the summer. When juvenile P. paludosa were forced to grow in reportedly favorable and relatively deeper summertime depths survival was high between treatments and growth was unaffected. In the other chapter I examined interactions between the two snails with a series of observations and experiments. I examined historical data on the assemblages and found that P. paludosa were locally extinguished in one of the wetlands within six years of invasion by P. maculata. Two field experiments gave conflicting results about the importance of interspecific inhibition of P. paludosa by the invasive snail, but in either case resource reduction could not be demonstrated. Lab exposure to P. maculata chemical cues strongly inhibited P. paludosa growth, although P. paludosa did not behaviorally avoid mucus of P. maculata. In mesocosms Pomacea paludosa growth was reduced with increasing exposure to adult P. maculata waterborne cues, and the results suggest that contact with mucus at a low exposure may even have a greater inhibiting effect. This interspecific direct chemical growth inhibition was novel for gastropods, but could be more generally important, and its potential impacts to P. paludosa populations should be explored further. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2020. / FAU Electronic Theses and Dissertations Collection
482

Using Low-Cost Multi-Depth Samplers to Characterize the Variability of Specific Conductance in Coastal South Florida Beaches

Unknown Date (has links)
A small body of saline rich water rests in the saturated zone between the foredune and the shoreline at certain beaches. This region is beneath the water table and the top of the fresher groundwater, known as the Upper Saline Plume (USP). The USP is significant because density driven flow and chemical fluxes between freshwater, rainwater, and seawater contribute to biogeochemical processes in the subterranean estuary (Duque et al. 2020). The occurrence of the USP has been observed along beaches that have a moderate to gentle slope, fine to medium grain size, and higher wave energy. The goal of this study was to determine if conditions for the presence of USP are consistent throughout different coastal beaches in southeast Florida while mapping the groundwater salinity across the beach. To identify the existence and delimit the boundary interface of the USP in the southeastern coast of Florida, multi–depth samplers were designed, built, and deployed along cross-shore transects at Jupiter and Gulfstream Beaches in Palm Beach County, FL. Groundwater samples were extracted along the transects to measure specific conductance. Although this study did not confirm the existence of the USP in South Florida beaches, an intermediate zone of water that is in-between the specific conductance ranges of relatively freshwater and relatively salty water was identified. Furthermore, the size of this intermediate zone was corresponded with beach slope, showing larger intermediate zones for steeper slopes and vice versa. Finally, temporal changes in the location and morphology of this intermediate zone were also identified in relation to a distinct disturbance event (Hurricane Isaias) which resulted in elevated ocean water levels. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2020. / FAU Electronic Theses and Dissertations Collection
483

Some major trends in the development of elementary-school principals of the Florida Education Association

Unknown Date (has links)
"After careful reading of the Minutes of the Department of Elementary-School Principals of the Florida Education Association and other available material, the writer will identify five areas which have been of major concern to the members of the organization for the elementary-school principals of Florida. The development of these areas will be traced and comments of the writer will be substantiated by direct quotations from the Minutes of the organization. The writer realizes that the material at hand is limited and a more thorough study could be made if time permitted interviews and the soliciting of material. From this study conclusions will be drawn that will point the way for future projects of the Department of Elementary-School Principals of the Florida Education Association. Recommendations will be made for future use of this material"--Introduction. / "August, 1955." / Typescript. / "Submitted to the Graduate Council of Florida State University in partial fulfillment of the requirements for the degree of Master of Science." / Advisor: W. J. Edwards, Professor Directing Paper. / Includes bibliographical references (leaf 31).
484

Restoration of Wetland and Vegetation on the Kissimmee Riverfloodplain: Potential Role of Seed Banks

Wetzel, P. R., van der Valk, A. G., Toth, L. A. 01 January 2001 (has links)
The composition of seed banks of areas on the drained Kissimmee River floodplain (Florida, USA) that are currently pasture and formerly had been wet prairie, broadleaf marsh, and wetland shrub communities was compared to that of seed banks of areas that have extant stands of these communities. The species composition of the seed banks of existing wet prairie and former wet prairie sites were the most similar, with a Jaccard index of similarity of 55. Existing and former broadleaf marsh and wetland shrub communities had Jaccard indices of 38 and 19, respectively. Although existing and former wet prairie seed banks had nearly the same species richness, species richness at former broadleaf marsh and wetland shrub sites was higher than at existing sites. Mean total seed densities were similar in existing and former wet prairies (700 to 800 seeds m2). However, seed densities in former broadleaf marsh and wetland shrub sites were significantly greater than in comparable existing communities (>4,900 seeds m2 at former sites versus 200 to 300 in existing communities). The higher seed densities in former broadleaf marsh and wetland shrub sites was due to over 4,000 seeds m2 of Juncus effusus in their seed banks. Half of the species that characterize wet prairies were found in the seed banks at former and existing wet prairie sites. At existing broadleaf marsh and wetland shrub sites, most of the characteristic species were found in their seed banks. However, only one characteristic broadleaf species was found in the seed banks of the former broadleaf marsh sites, and no characteristic wetland shrub species were found in the seed banks of the former wetland shrub sites. The seeds of only two non-indigenous species were found in the seed banks of former wetland communities at very low densities. For all three vegetation types, but particularly for the broadleaf marsh and wetland shrub sites, re-establishment of the former vegetation on the restored floodplain will require propagule dispersal from off-site sources.
485

Haptic Memories

Mullappally, Joy 23 August 2022 (has links)
No description available.
486

Can I Get an Amen? Central Florida Black Pastors' Perceptions of the Impact of the Black Church in the Black Community

Williamson, Jeffrey 01 January 2015 (has links)
This study uses phenomenological methods to answer the research question, “what do black pastors perceive as the role of the church in the black community?” I asked 20 Central Florida black pastors 17 questions, most of them open-ended, to determine their perceptions of the current black church. First, these pastors are dismayed at the condition and the position of the current black church. They view the history the black church as strong and stalwart, and the Civil Rights Movement as an example of what the institution is capable of doing and being. Second, they perceive the primary roadblock of the black church to be leadership. They do not see current pastors as having neither the vision nor the desire to make the church the instrument of social justice and change that it once was. They see current pastors trying to make a name for themselves instead of impacting the communities they serve. They also see member apathy as another issue that hinders the impact of the black church. They argue that many black people have climbed the social ladder and no longer desire to reach back and help other blacks in the community that they have exited. This study provides important insight into the current state and the perception of the direction of the black church from the vantage point of these men and women who lead black churches in Central Florida.
487

Foreign Language Oral Assessment Practices In Florida Middle And High Schools

Kellermeier, Grace Kerr 01 January 2010 (has links)
Current foreign language pedagogy encourages a communicative approach to language learning. Instead of the reading and writing focus of the past, this communicative approach requires instruction in all skills, which include reading, writing, listening, speaking and having knowledge of associated cultures. A random sample of Florida foreign language teachers was surveyed to establish whether or not the goals and actual instructional practices were aligned. Respondents were asked to identify how much of a typical class period is dedicated to each of the five skills and how much of a typical unit test is dedicated to the same five skills. The findings showed that only the instruction and assessment of writing were aligned. Instruction and assessment of the other skills were unequal. A comparison of the means revealed that listening was actually instructed much more than assessed. The other means were similar, including writing. Reading was found to be the only skill that was assessed more than instructed. The variables examined in this study included the level of fluency, level of education, amount of experience of the teacher, available resources, amount of the target language used in the classroom, as well as demographic information. The interaction of the level of education and experience of the teacher was significant. Teacher gender was also significant, although the disparate gender groups made it difficult to compare means. The other variables revealed no statistical significance. Slightly less than half of the respondents stated that they do not believe that they include enough oral assessment as a part of instruction. They reported a lack of time, student resistance, class size, and unreliable technology as reasons for not including what they perceived to be enough oral assessment
488

Is "good" Good Enough? A Small Area Variation Analysis Of Disparity In Expressed Rates Of Access To And Satisfaction With Child And Adolescent Healthcare Services In East Central Florida

Schaefer, Jay M. 01 January 2010 (has links)
The purpose of this dissertation research was to explore indications of disparities within the east Central Florida child and adolescent healthcare services market. Structured as a follow-up study to work completed in 2005 under the direction of the Health Council of East Central Florida assessing parental perceptions of community child and adolescent healthcare services, this research extended that evaluation by aggregating participant responses at the county and small area zip code group levels, contextually testing the uniformity of responses in understanding parent perceptions of access to, and satisfaction with, community healthcare service offerings available for children and adolescents. Under a variety of methodologies significance in the responses concerning access to healthcare services were demonstrated between the counties studied. Statistical modeling, however, could not demonstrate the core demographic differences among these data. Data representing perceptions of satisfaction with the services received by children and adolescents were demonstrated at the small area zip code group level within Orange county. Primary effect assessment of the demographic variables representing these respondents yielded findings generally consistent with theoretical expectations of disparity but, notably, the correlation effects between a number of key independent variables demonstrated a mediation of the primary effects on overall perception of satisfaction. Specifically, it was demonstrated that the interaction of white race with possession of private healthcare insurance, and the iv interaction of greater levels of educational attainment with black race, caused a proportional reduction in the predicted satisfaction score of these survey respondent cohorts. Further research specific to these phenomenon encompassing a clearer understanding of the type of care received and the individual’s specific experiences with their healthcare providers was recommended, with ensuing research to better identify commonalities of interactions with specific area providers, local restrictions imposed by area insurance carriers, influences caused by language and/or cultural barriers, and the like as drivers in understanding the individual dynamics of satisfaction.
489

Foreclosures And Crime: Testing Social Disorganization Theory In The Suburbs

Hoskin, Sara 01 January 2012 (has links)
Foreclosures have increased in the US since the 1970’s. The increase in foreclosures has caused concern among some researchers on their affect on crime. Social disorganization theory measures the effect various structural characteristics, such as poverty, residential instability/mobility, racial/ethnic heterogeneity, and family disruption have on crime. This study, though, is concerned with residential instability/mobility, or the presence of foreclosed houses in neighborhoods. Although most studies using this theory look at low-income neighborhoods, the following research looks at middle- and upper-income neighborhoods, which have been greatly affected by foreclosures. The theory also argues that the level of collective efficacy can reduce crime even in neighborhoods that are otherwise considered to be socially disorganized. Using ArcGIS mapping, the following research investigated 30 neighborhoods in Orange County, Florida that have high foreclosures in neighborhoods for the years of 2005-2009. Canvasses were conducted in all 30 neighborhoods to measure the level of collective efficacy within the neighborhoods to help explain the presence of high or low residential burglary. Thirteen neighborhoods stood out as noteworthy because they fell at the far end of the spectrum – high foreclosures and high crime, and high foreclosures and low crime. Some of the neighborhoods with high residential burglary did have strong indicators of low collective efficacy, while neighborhoods with low residential burglary had indicators of high collective efficacy. The majority of the indicators found in this research support previous research on various indicators of collective efficacy
490

The Politics Of Slavery And Secession In Antebellum Florida, 1845-1861

McConville, Michael Paul 01 January 2012 (has links)
The political history of antebellum Florida has long been overlooked in southern historiography. Florida was a state for just sixteen years before secession set it apart from the rest of the Union, but Florida’s road to secession was as unique as any of its southern counterparts. From the territorial days in the early nineteenth century, Florida’s political culture centered on the development and protection of slavery throughout the state. The bank wars in the pre-statehood and early statehood periods reflected differing views on how best to support the spread of the plantation economy, and the sectional strife of the 1850s instigated Floridians to find the best way to protect it. By the end of the antebellum period amidst increasing sectional strife and a sense that secession and disunion were acceptable courses of action, Florida’s population pulled together under the banner of protecting slavery – and by extension, their way of life – by whatever means necessary. Northern infringement into slavery affected not just the planters, but every free man who called Florida his home.

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