Global ETD Search
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Showing 1 to 11 of 11 for “"Florida scrub"”.
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Soil Microbial Community Dynamics In Florida Scrub Ecosystem
… vary in frequency, seasonality, 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 …
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Genotypic and Phenotypic Variation of the Florida Scrub Lizard (Sceloporus Woodi)
… I investigate 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 …
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Sources And Consequences of Ecological Intraspecific Variation In The Florida Scrub Lizard (Sceloporus Woodi)
… Iguanid lizard endemic to dry xeric habitats in Florida. 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 …
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The Effect of Aposematic Coloration on the Food Preference of Aphelocoma coerulescens, the Florida Scrub Jay
… and federally threatened bird in the state of Florida, shares a similar distribution with Abrus precatorius, making interaction between the two species possible. Using an edible model of the Abrus seed, this potential interaction was tested in Martin and Palm Beach County populations of …
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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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Predator Behavior and Prey Demography in Patchy Habitats
… on 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 …
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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 …
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Coarse Root Biomass and Architecture: Applications of Ground Penetrating Radar
… in a Virginia mixed-oak forest ecosystem, a Florida scrub-oak ecosystem, or a Florida longleaf pine flatwoods ecosystem. GPR appears to have difficulty with root structures near the surface, as it is not able to reliably separate these structures from the soil-air interface.</p> …
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Tactical Escape Behavior and Performance of a Small Sceloporine Lizard in Two High Risk Habitats
… mates, 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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Effects of Elevated Atmospheric CO₂ on Scrub-Oak Root Carbon Pools and Soil Microbial Processes
… in 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. …
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Intraspecific, Interspecific, and Seasonal Variation in Acclimation of Photosynthesis to Rising Atmospheric Carbon Dioxide Concentration
… an open-top chamber experiment within a clonal Florida scruboak ecosystem. In these experiments, photosynthesis was measured with an open-gas exchange system and in vivo rates of carboxylation (Vc,max) and electron transport (Jmax) were derived to assess changes in photosynthetic capacity. The …