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Showing 1 to 20 of 25 for “"Gulf Coastal Plain"”.
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Ecology of Two Rare Amphibians of the Gulf Coastal Plain
… been purported to be driving the decline. The Gulf Coastal Plain of Florida has a high degree of endemism and rarity and the biodiversity in the region includes a diverse suite of amphibian species. Degradation of habitat has been considered by many to be a major part of amphibian declines, …
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Paleoenvironmental Reconstruction of the Late Cretaceous Eastern Gulf Coastal Plain in Georgia and Alabama
… paleoclimate) of the Late Cretaceous Eastern Gulf Coastal Plain of Georgia and Alabama using paleobotanical, paleoecological and geochemical methods in order to evaluate the Late Cretaceous climate of the Southeastern United States, and to add to the body of paleoclimate data for that time. …
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The Occurrence of the Greta Sandstone, Frio Formation (Late Oligocene), Texas Gulf Coastal Plain
… (Oligocene) that occurs across the Texas Gulf Coastal Plain. The Greta sandstone has been known to geologists since it was first drilled in the 1930’s, yet there has been very little research into this un-depleted and overlooked reservoir. This study provides insights into the lateral …
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A Geophysical Delineation of A Normal Fault Within the Gulf Coastal Plain, Montgomery County, Texas
<p>The Gulf Coast of Texas has been a known hydrocarbon basin for many years with various structural trapping mechanisms such as anticlines, faults and salt domes. While most large salt domes have been extensively studied in the Gulf Coastal Plain, many smaller normal faults have not been studied …
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Comparison of the Survival and Growth of West Gulf Coastal Plain Pine in East Texas
<p>West Gulf Coastal Plain provenance loblolly <em>(Pinus taeda</em> L.), longleaf (<em>Pinus palustris</em> Mill.), shortleaf (<em>Pinus echinata</em> Mill.), and slash pines (<em>Pinus elliottii</em> Engelm.) were planted in East Texas to compare initial growth and survival. Containerized …
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A Systematic Review of the Viola palmata Species Complex in the Gulf Coastal Plain and Southern Appalachians
<p>The <em>Viola palmata</em> species complex (Violaceae) consists of one to several species of acaulescent, heterophyllous, blue violets that are native to most of eastern North America. This study was conducted in order to evaluate the variation within the <em>V. palmata</em> species complex in …
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A NEW SITE INDEX MODEL FOR INTENSIVELY MANAGED LOBLOLLY PINE (Pinus taeda) PLANTATIONS IN THE WEST GULF COASTAL PLAIN
… managed loblolly pine plantations in the Western Gulf Coastal Plain. To fill the gap, the scope of the East Texas Pine Plantation Research Project (ETPPRP) was expanded and permanent plots were established in intensively managed loblolly pine plantations across east Texas and western Louisiana. …
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Geochemical Controls on Mercury Methylation in Backwaters of a Gulf Coastal Plain River System, Implications for Water Column Processes
<p>The abundance and distribution of mercury and methyl mercury were investigated at three sites in the lower Ouachita River in the summer of 2010 in an effort to provide the first characterization of the extent of mercury contamination in this river system, and to investigate the potential for …
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Global Structure of the Mantle Transition Zone Discontinuities and Site Response Effects in the Atlantic and Gulf Coastal Plain
… the site response effects in the Atlantic and Gulf Coastal Plain. Global structures of the mantle transition zone discontinuities provide important constraints on thermal structures and dynamic processes in the mid mantle. In this thesis, global topographic structures of the 410- and 660-km …
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MODELING DIAMETER DISTRIBUTION OF LOBLOLLY PINE PLANTATIONS IN RESPONSE TO MID-ROTATION THINNING TREATMENTS AND ASSING THE ECONOMIC RETURNS IN WESTERN GULF COASTAL PLAIN
… taeda</em>) plantations within the Western Gulf Coastal Plain. This study utilized data from a thinning study plots established by the East Texas Pine Plantation Research Project across East Texas and Western Louisiana. A two-parameter Weibull distribution was used to model diameter …
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Assessing The Impacts Of Grazing By Piney Woods Cattle And Controlled Burning On The Herbaceous Layer In An East Gulf Coastal Plain Longleaf Pine Woodland
… in a longleaf pine savanna in the East Gulf Coastal Plain.</p> <p>For this study, controlled burning combined with grazing yielded the highest diversity, with no burning with grazing yielding the lowest diversity. Controlled burning did not significantly affect biomass, while grazing had …
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Q Models for Lg Wave Attenuation in the Central United States
… of the Lg phase in the mid-continent and Gulf Coastal region. The TA data reveal previously unrecognized regional variability of ground motion propagation in the central United States. A study of the Fourier amplitude spectra shows the Lg phase exhibiting strong attenuation for ray paths …
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Sequence Stratigraphy of Campanian-Maastrichtian Strata in Eastern Alabama
… area of interest due to the transition from the Gulf Coastal Plain to the Atlantic Coastal Plain. Coastal Plain investigations have been sparse compared to research conducted in the oil rich areas down dip in the Gulf of Mexico. A sequence stratigraphic framework using the T-R cycle methodology …
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HERBIVORY IMPACTS ON GROWTH AND SURVIVAL OF SEEDLINGS IN BOTTOMLAND HARDWOOD FOREST RESTORATION SITES IN THE POST OAK SAVANNAH AND BLACKLAND PRAIRIE ECOREGIONS OF TEXAS, USA
… are becoming commonplace within the Western Gulf Coastal Plain. However, restoration success has been mixed, with managers observing survival rates of <15% for desirable species due to various factors. Over two growing seasons, I investigated multiple factors that have potential to limit BLHW …
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A Potential Long-lived Upper Cretaceous Paleodrainage System In The U.s. Southwestern Georgia-southeastern Alabama Region
<p>The Gulf Coastal Plain unconformity separates crystalline basement of the Appalachian core from sedimentary units of the Coastal Plain. In the Columbus, Georgia region, basement rocks of the Uchee terrane are typically overlain by sands and gravels of the Tuscaloosa Formation. Sediments within …
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Ostracodes of the Piney Point formation (middle eocene) of Virginia
… outcrop along the Pamunkey River on the Virginia Coastal Plain (Ward, in ms.). The ostracode fauna of this unit is diverse and well preserved, and is here identified and described for the first time. It is composed of forty-five species of Ostracoda, twelve having been described previously, eleven …
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Flight Period and Species Composition of Sirex (Hymenoptera: Siricidae) and Associated Deladenus (Nematoda: Neotylenchidae) within Arkansas Pine Forests
… Ozark Mountains, Ouachita Mountains, and Gulf Coastal Plain. Specimens collected in these traps were identified and later dissected for presence of Deladenus. One species of Sirex was collected, Sirex nigricornis F., and a single species of Deladenus was found in S. nigricornis specimens …
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SIMULATED MINE LAND RECLAMATION IMPACT ON BIOMASS PARTITIONING AND NUTRIENT CONTENTS IN LOBLOLLY PINE
… This method had not been evaluated in the Gulf Coastal Plain, where the pan scraper reclamation method is commonly used. However, using pan scrapers increases mine soil compaction which reduces productivity. This study was carried out on an experimental site in Houston County, Texas managed …
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2-D and 3-D Temporal Modeling of Solute Migration through Low Permeable Media using Electrical Resistivity, Nacogdoches County, Texas
… for the Carrizo-Wilcox Aquifer throughout the Gulf Coastal Plain of East Texas and consists of low permeability, glauconite-rich strata that isolate semi-confined portions of the aquifer system from potential contaminants. Electrical resistivity methods were employed within a forested watershed …
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Sequential Isotopic Analysis of Ammonite Aptychi
… Greene County in the Upper Cretaceous eastern Gulf Coastal Plain, similar to other estimates from this region and time. These analyses suggest time series δ18O and δ13C data from aptychi may be a useful method to assess aspects of ammonite behavior and environmental conditions.
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