Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 106 for “"scrub"”.
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Soil Microbial Community Dynamics In Florida Scrub Ecosystem
… and intensity. Florida oak-saw palmetto scrub ecosystem is characterized by fires occurring at intervals of 10-20 years. Diverse factors as private land acquisition and development has created a patchy distribution of scrub ecosystems and also interrupted the natural fire cycle. The …
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Reproductive ecology of the island scrub-jay (Aphelocoma insularis)
… population size and limited range of the Island Scrub-Jay make it a species of conservation concern, yet its reproductive ecology is poorly known. From 2008 - 2010 I investigated factors influencing nest success, quantified annual fecundity per pair, and documented breeding behavior. Nest …
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Variation In Population Densities of the Florida Scrub Lizard (sceloporus Woodi) between Managed Sand Pine Scrub And Longleaf Pine Stands in the Ocala National Forest
… 2012, populations of the rare, endemic Florida scrub lizard (<em>Sceloporus woodi</em>) were sampled across the Ocala National Forest (ONF) to compare abundance and density across two management types. In the ONF, sand-pine scrub is clearcut and rollerchopped whereas longleaf pine is managed via …
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Genotypic and Phenotypic Variation of the Florida Scrub Lizard (Sceloporus Woodi)
… the phenotypic variation of the Florida scrub lizard by examining sprinting and jumping ability. These are key performance measures that have been widely studied in vertebrates. The vast majority of these studies, however, use methodologies that lack ecological context by failing to …
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Epidemiological Characteristics and Environmental Factors Associated with Scrub Typhus Outbreaks in Korea
Ⅰ. 서 론 1 A. 연구배경 및 필요성 1 B. 연구목적 3 C. 이론적 고찰 4 1. 쯔쯔가무시증 환자 역학적 특성 분석 연구 4 2. 쯔쯔가무시증 환자 발생률에 영향을 미치는 요인 연구 6 Ⅱ. 연구 방법 10 A. 자료수집 10 1. 쯔쯔가무시증 환자 자료 10 2. 인구자료 10 3. 기상자료 10 4. 지역별 환자 발생률 및 변화율에 미치는 요인 11 B. 통계분석방법 14 1. 환자 표준화발생률과 변화율 산출 14 2. 쯔쯔가무시증 환자 역학적 특성 분석 14 3. 지역별 표준화발생률 차이에 영향을 미치는 요인 15 …
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Comparative study of the clinical manifestations and pathophysiology of leptospirosis and scrub typhus
… to determine the prevalence of leptospirosis and scrub typhus in northeast Thailand, and to compare and contrast their clinical features and outcomes. Leptospirosis and scrub typhus accounted for 45% of acute febrile illness in 1249 prospectively studied patients presenting to Udon Thani hospital …
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Sources And Consequences of Ecological Intraspecific Variation In The Florida Scrub Lizard (Sceloporus Woodi)
… This species is most often found in sand-pine scrub habitats, but also inhabits relic long-leaf pine "islands" within the scrub of the Ocala National Forest in north central Florida. In the current study I investigated seasonal and sexual variation in foraging behavior of S. woodi and compared …
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Scrub typhus: Epidemiology, Diagnosis, Treatment, Prevention and Control in the Asia-Pacific Area and Worldwide
… effective measures to control and even eradicate scrub typhus and other related infectious diseases. Scrub typhus is a serious public health problem in the Asia-Pacific area. It threatens one billion people globally, and causes illness in one million people each year. It can cause severe …
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Effects of Elevated Atmospheric CO₂ on Scrub-Oak Root Carbon Pools and Soil Microbial Processes
… the soil. This study was conducted in a Florida scrub-oak ecosystem, where CO<sub>2</sub> levels have been elevated to twice ambient since 1996 in open top chambers. There were eight replicates of ambient CO<sub>2</sub> chambers and eight replicates of twice-ambient CO<sub>2 </sub>levels. The …
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Effects of Elevated Atmospheric CO2 on Root Growth, Turnover and Decomposition in a Scrub Oak Ecosystem
… CO<sub>2</sub> treatments in an oak-palmetto scrub ecosystem at Kennedy Space Center, Florida. Minirhizotron tubes were installed in each elevated and control chamber to allow observation of roots. Each tube was sampled for root length density (mm cm<sup>−2</sup>) every three months. Carbon …
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The Effect of Aposematic Coloration on the Food Preference of Aphelocoma coerulescens, the Florida Scrub Jay
… by presenting a red and white seed to individual scrub jays to determine whether they showed a preference for or avoidance of the red model seed. Results showed a significant tendency by the birds to prefer white over red, indicating that the color, independent of other warning signals, functions …
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Establishment and Improvement of Preclinical Murine Models of Severe Scrub Typhus to Define Immune Signatures and Pathogenic Mechanisms
Scrub typhus is a leading source of febrile illness in endemic countries due to infection with Orientia tsutsugamushi (Ot), a seriously understudied intracellular bacterium. Scrub typhus causes 150,000 deaths per year, with an estimated 1 million cases, and a further 1 billion people at risk. No …
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Effects of 11 Years of CO2 Enrichment on Root Biomass and Spatial Distribution in a Florida Scrub-Oak Ecosystem
<p>A Florida (USA) scrub-oak ecosystem was exposed to elevated atmospheric CO<sub>2</sub> in open-top chambers from 1996-2007. Minirhizotrons and ground-penetrating radar (GPR) were used to measure fine root (< 2 mm diameter) and coarse root (> 5 mm diameter) biomass, respectively. After 11 years …
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Invasion of Hurricane-Disturbed Scrub Communities on Barrier Islands in Mississippi: a Battle Between Native and Non-Native Ecosystem Engineers
… related to this idea within barrier island scrub communities dominated by Florida rosemary (Ceratiola ericoides Michx.). Hurricanes represent a major source of disturbance to coastal Florida rosemary communities, and individual rosemary shrubs in three populations recently impacted by major …
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Development of a Murine Model of Severe Scrub Typhus And Its Use to Elucidate the Immune Response to and The Pathology that Occurs during Orientia Tsutsugamushi Infection.
Scrub typhus is an often lethal infection that threatens one billion persons globally and causes illness in one million people annually. There is no vaccine for scrub typhus, and the mechanisms of protective immunity are poorly understood. Scrub typhus is a disseminated infection of endothelial …
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Effects of Elevated Atmospheric CO2 on Root Dynamics, Biomass and Architecture in a Scrub-Oak Ecosystem at Kennedy Space Center, Florida
… persistence and architecture in a fire dominated scrub-oak ecosystem. Open-top chambers have been exposed to elevated atmospheric CO<sub>2</sub> for the past eleven years at Kennedy Space Center, Florida. No significant sustained CO<sub>2</sub> treatment effects were observed in fine root length …
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Predator Behavior and Prey Demography in Patchy Habitats
… the survival rate of Sceloporus woodi (Florida Scrub Lizard) populations. Masticophis flagellum positively selected lizard and mammal prey, but within these categories it consumed prey species in proportion to their availability. Masticophis flagellum was vagile and constrained its movements …
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Tactical Escape Behavior and Performance of a Small Sceloporine Lizard in Two High Risk Habitats
… foraging, and evading predators. The Florida scrub lizard (<em>Sceloporus woodi</em>) is a small, rare species endemic to two distinct and structurally complex environments in Florida, i.e. sand-pine scrub and longleaf pine-wiregrass sand-hills. The differing microhabitats of scrub and …
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Aim High, Win Big: Optimizing the OR Nurse's Skills to Improve Surgical Outcomes
… of OR nurses in this microsystem. A structured scrub training program will improve the performance of novice and advanced beginner nurses to prevent the occurrence of adverse events. This program includes 320 hours of exposure to scrub the top ten procedures of two specialty services after the …
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