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 16 of 16 for “"pine savanna"”.
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Using Remote Sensing Data to Predict Habitat Occupancy of Pine Savanna Bird Species
… and fire suppression has resulted in the loss of pine savanna habitats across the southeastern U.S., affecting many avian species dependent on these habitats. However, due to the ephemeral nature of the habitat requirements of many pine savanna species (e.g., habitat is only present for a couple …
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The ecology of congeneric resprouters and reseeders (Hypericum spp.) along fire-frequented pine savanna ecoclines
… of <i>Hypericum</i> species along ecoclines in pine savannas of the St. Joe Bay State Buffer Preserve in Gulf County of Florida. In this area, ecoclines are characterized by topographic, soil moisture, and fire heterogeneity gradients. <i>Hypericum microsepalum</i>, an obligate resprouter, …
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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 herbaceous …
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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
… 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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Historical fire regimes in southeasern pine savannas
Southeastern coastal plain pine savannas lack direct evidence of past fire regimes. As a result, uncertainty exists regarding the range of variation in frequency and seasonal timing of past fire regimes and the relative importance of anthropogenic and lightning-ignited fires. Characterization of …
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Resource Selection, Home Range and Habitat Associations of the Southern Fox Squirrel (<i>Sciurus niger niger</i>) in the Piedmont and Coastal Plain of Virginia
… and forest mesophication have transformed pine hardwood woodlands and pine (Pinus spp.) savanna habitats that southern fox squirrels prefer to hardwood dominant habitats that eastern gray squirrels (Sciurus carolinenisis) prefer. These habitat changes have the potential to increase …
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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 the southeastern United States, longleaf pine plant communities are adapted to frequent fires and are likely to have been grazed by bison in the past. Though bison have been extirpated from this region, Pineywoods Cattle, which were introduced by the Spanish in the 16<sup>th</sup> Century, …
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Delineating Metrics of Diversity for a Snake Community in a Rare Ecosystem
… in a ~7,000–ha tract of contiguous Longleaf Pine (Pinus palustris) Savanna within the Angelina National Forest (ANF; Angelina and Jasper Cos., TX), over the course of two consecutive snake activity seasons. I quantified the snake species richness, Shannon diversity, and Shannon equitability …
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Nonbreeding Foraging Ecology of the Brown-headed Nuthatch (<i>Sitta pusilla</i>)
… predation threat. I surveyed mixed-species pine-savanna canopy flocks and recorded flocking and foraging behavior of Brown-headed Nuthatches (Sitta pusilla) in both natural conditions and following predator call playback at two publically managed sites in North Carolina, USA, over three …
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Ecological assembly of high-diversity plant communities: dispersal, competition, and environmental filtering in longleaf pine savannas
… 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 pool. …
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Influence of fire and habitat on the removal of invasive plant seeds by granivores in longleaf pine savannas
… 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 upland …
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Habitat use by wintering passerines in fire-managed forests along the U.S. Gulf Coast
… include fire-managed areas such as longleaf pine savanna, oak scrub, and sand pine scrub. During the winters of 2013 and 2014, the bird community was surveyed with repeated fixed-area searches paired with vegetation surveys. Kinglets were banded and regularly re-sighted to record foraging …
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Global change effects on ant-mediated seed dispersal
… patches with corridors in restored longleaf pine savanna systems in South Carolina. We used a landscape scale experiment to investigate how reducing isolation affects the assembly of ant communities over time (Chapter 2) and seed dispersal of the myrmecochorous forb, Piriqueta cistoides …
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Fire disturbance belowground: untangling consequences for soil food webs and organic matter
… function, stability, and resilience in an oak-pine savanna. Here, I found that while soil biota biomass and food web function did not differ with fire frequency, food web structure, stability, and resilience did. In particular, soil food webs at intermediate fire frequencies (4-year fire return …
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Conditions Responsible For The Success Of Carnivorous Plants In Nutrient-Poor Wetlands
… and carnivorous plants may be weak in the wet pine savannas studied here. I suggest that the ability of a large number of species to tolerate the abiotic conditions present in wet pine savannas, combined with weak resource competition among herbaceous plants (carnivorous and non-carnivorous) …
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Effects of Fire on Soil CO₂ Efflux in a Mature Longleaf Pine Forest
… 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) before and …