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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 58 for “"Longleaf pine"”.
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Profiling Bat Activity and Species Presence in Managed Longleaf Pine Landscapes
… within the southeastern U.S. is that of the longleaf pine (<em>Pinus palustris</em>). Bats inhabit key ecological niches in forest ecosystems, including the longleaf pine ecosystem, and can be indicators of ecosystem condition. This study investigated the effects of current forest management …
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Modeling longleaf pine (Pinus palustris Mill) wood properties using near infrared spectroscopy
… modeled from wood samples taken throughout 10 longleaf (Pinus palustris Mill) trees. Principal components and multiple linear regression were compared for performance in prediction of density, strength, and stiffness. I found both modeling techniques to yield similar prediction accuracies. …
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Species-Habitat Relationships for the Breeding Birds of a Longleaf Pine Ecosystem
… encompasses one of the largest, fire-dependent longleaf pine systems existing today and is a mosaic of forested habitats. I used bird count data collected during 1994-1997 at 50-m fixed radius point count stations to examine bird species-habitat relationships in relation to fire treatment (i.e., …
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Effects of Fire on Soil CO₂ Efflux in a Mature Longleaf Pine Forest
… was conducted from 2012-2013 in a 96 year old longleaf pine at the Lake Thoreau Environmental Center located Lamar County, MS. Measurements of soil CO₂ efflux (i.e., soil respiration or SR) rates (µmol m<sup>-2 </sup>sec<sup>-1</sup>) were taken across 8 field plots (4 burned, 4 unburned) …
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Ecology of Upland Snake Communities in Managed Montane Longleaf Pine Habitats of Georgia
<p>Longleaf pine ecosystem decline in the Southeast United States has led to intensive land management implementation with the goal to benefit both the ecosystem and at-risk species. Addressing at-risk snake populations in these longleaf pine ecosystems, for instance, requires understanding both …
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Ecology of Root-Feeding Insect Assemblages in Fire-Manipulated Longleaf Pine-Wiregrass Ecosystems
… I studied root-feeding insect assemblages in longleaf pine wiregrass (Pinus palustris-Aristida stricta) ecosystems of southwestern Georgia, U.S.A. On a random basis, study sites were burned at least every other year (B), or left unburned (UB) for about 9 years. Fine root productivity and …
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Turning up the heat: fire ecology and climate adaptive silviculture in longleaf pine forests
… structure, function, and high biodiversity of longleaf pine woodlands. Longleaf pine regeneration is exposed to this frequent fire, yet persists as both patches and single tree regeneration. While research has shown that this regeneration within patches alters fuel composition, specific changes …
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Whose Woods These Are: Human-Environment Relationships Among Stakeholders of South Mississippi's Longleaf Pine Ecosystem
<p>Between 1870 and 1920, the longleaf pine belt of the southeastern United States experienced an extensive and unsustainable period of logging. In the years after the logging boom the landscape of the Southeast was reforested, but fire suppression and a preference among landowners for loblolly …
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Effects of Fire on the Ectoparasites of Small Mammals in Longleaf Pine (Pinus Palustris) Habitats
… increases the condition of small mammals in longleaf pine habitats. I trapped two areas with paired burned and unburned sites in east central Georgia during 2002 2003. I collected 190 mammals from 9 species and recovered 32 ectoparasite species. I found little overlap in mammal species …
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Ecological assembly of high-diversity plant communities: dispersal, competition, and environmental filtering in longleaf pine savannas
… Using field experiments in a high-diversity longleaf pine savanna, I test the general hypothesis that “ecological filters” (competition, disturbance, and resource availability) contribute to niche assembly through their effects on established plant species and recruitment from the species …
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Characterization of Sites for Native Herbaceous Understory Restoration in West Gulf Coast Longleaf Pine (Pinus palustris) Savannas
<p>Longleaf pine (<em>Pinus palustris</em>) savannas were once dominant in East Texas and parts of western and central Louisiana. Native understory species have since been removed or reduced by exotic plants that were introduced and from the reduction in the frequency of both wild and prescribed …
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Characterization of Sites for Native Herbaceous Understory Restoration in West Gulf Coast Longleaf Pine (Pinus palustris) Savannas
<p> Longleaf pine (<em>Pinus palustris</em>) savannas were once dominant in East Texas and parts of western and central Louisiana. Native understory species have since been removed or reduced by exotic plants that were introduced and from the reduction in the frequency of both wild and prescribed …
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LONG-TERM OVERSTORY VEGETATION RESPONSES TO PRESCRIBED FIRE MANAGEMENT FOR LONGLEAF PINE AT BIG THICKET NATIONAL PRESERVE
<p>At the western edge of the longleaf pine (Pinus palustris) range, federal land managers have burned the forests of Big Thicket National Preserve to bring back the structure and diversity of the longleaf pine forest. In the early 1990’s, a four year study was conducted by Rice University, and the …
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The Influence of Overstory Structure on Understory Light Availability in a Longleaf Pine (Pinus palustris Mill.) Forest
Understory light environments are inherently heterogeneous and therefore difficult to characterize. Numerous methods to measure understory light have been assessed in closed-canopied forests; however, the reliability of these methods has not been addressed for open-canopied forests. Therefore, the …
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Soil Morphological, Physical, and Chemical Parameters Affecting Longleaf Pine (Pinus palustris) Site Quality and Ecosystem Restoration Potential in East Texas
<p>There has been a large decline in coverage of longleaf pine (<em>Pinus palustris </em>Mill.) within its range in the southeastern United States since the time of European settlement. Due to this decline, interest has developed in the re-establishment of this species on suitable sites. However, …
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Variation in the structure, composition, and dynamics of a foundation tree species at multiple scales and gradients
… the ecology, restoration, and management of longleaf pine (Pinus palustris P. Mill.) communities and ecosystems. However, the range of this foundation tree species and its associated communities and ecosystems also extend into the Piedmont and Montane Uplands: the Piedmont of Alabama, …
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Influence of fire and habitat on the removal of invasive plant seeds by granivores in longleaf pine savannas
… Triadica sebifera, and Melia azedarach), in longleaf pine savanna that varied spatially in time since fire, in the Sandhills of North Carolina. I selected eight sites burnt one growing season prior, and nine sites burnt three growing seasons prior, within which I established paired plots in …
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Effects of fire and treefalls on Japanese climbing fern and native species groundcover in a restored longleaf pine savanna
… play an important role in maintaining longleaf pine savannas. Windstorms and fires contribute to the heterogeneity of pine savanna understory through generation of canopy gaps and fuel accumulation, distribution and consumption. The combination of windstorms and fires promotes native …
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Effects of Site Preparation, Seed Germination, and Harvest Maturity on Wiregrass Restoration Efforts at Fort Stewart, GA
… cover species within the Atlantic Coastal Plain longleaf pine (Pinus palustris Mill.) ecosystem. Less than 1 million hectares of intact longleaf pine-wiregrass communities remain, due primarily to anthropogenic activities. Wiregrass is a keystone species in the longleaf pine ecosystem, as its …
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The Effects on Soil Fungal Community of Excluding select Above-ground Herbaceous Species in a Montane Longleaf Pine Savanna Restoration Area
<p>Due to anthropogenic pressures, by the 1990s longleaf pine forests were at 3% its peak area. Restoration is difficult as vegetation communities constitute a mosaic across the longleaf range. Hence, vegetation description is important wherever longleaf pine communities exist. Vegetation strongly …
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