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 15 of 15 for “"time since fire"”.
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Fire Ecology of Northern Andean grasslands: Estimating recent fire history and its impact on páramo plants
… and sustainable management is a high priority. Fires are the most significant human impact in the páramo, yet fire regimes and the response of plant communities to fire are not well understood (Luteyn, 1992; Laegaard 1992; Ramsay and Oxley, 1996; Ramsay, 2001; Horn & Kappelle, 2009). A …
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Influence of fire and habitat on the removal of invasive plant seeds by granivores in longleaf pine savannas
Invasions of fire-dependent ecosystems by exotic woody plant species can disrupt fire cycles and alter successional trajectories. Prescribed fire is an important tool for managing such ecosystems, yet the role of top-down processes in mediating fire effects on invasion remain poorly understood. …
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Impacts of Fire on Bats in the Central Appalachians
Fire occurrence was widespread in the central Appalachians pre-European settlement due to Native American ignition and occasional lightning strikes, and continued through European settlement. During this time, low to mixed severity burns supported a suite of ecological communities that were fire …
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Post-Wildfire Vegetation Response on Diverse Rangelands in Northeast California: Does Livestock Grazing Management Matter?
Wildfires are increasing in size and frequency and are affecting federal lands used for livestock grazing across the western United States. A recommended approach to post-wildfire grazing policy is to rest fire-affected areas from grazing for two growing seasons following a burn; however, this …
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Effects of prescribed fire on breeding forest songbird abundances in central and Southern Illinois
… oak- and hickory-dominated status. Prescribed fire is one of the tools that forest managers use to meet this challenge. While the forest managers monitor the effects of prescribed fire on the structure and species composition of the trees, it is imperative to also understand how these burns …
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Free living nitrogen-fixation in ponderosa pine/Douglas-fir forests in western Montana
… ecosystems is required to minimize N losses to fire, harvesting, and other forms of land management. The influence of fire, fire exclusion and forest restoration treatments on non-symbiotic N-fixation in the forest ecosystem has been poorly studied. Over the past 100 years, fire has been greatly …
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Free living nitrogen-fixation in ponderosa pine/Douglas-fir forests in western Montana
… ecosystems is required to minimize N losses to fire, harvesting, and other forms of land management. The influence of fire, fire exclusion and forest restoration treatments on non-symbiotic N-fixation in the forest ecosystem has been poorly studied. Over the past 100 years, fire has been greatly …
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Response of Breeding Birds to Forest Disturbance in the Arkansas Ozarks: Impacts of Uneven-Aged Management, Ice Damage, and Woodland Restoration
… Arkansas. Each site was surveyed for birds four times a season using fixed-radius point counts. For objective (1), I compared control and thinned plots (n=32 total) immediately after treatment (1994, data from a previous study) and fifteen years post-treatment (2008). Although vegetation differed …
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Compounding Fire Disturbance History Encourages Coast Redwood (Sequoia sempervirens) Regeneration and Community Dominance
… are projected to see increased frequency of fire under future climate scenarios. My objectives in this study were to quantify the effects of time-since-fire and single vs. compounding disturbances on coast redwood forest structure, composition, and regeneration dynamics and to evaluate the …
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Wildland Fire in the Central Appalachian Mountains: Impacts on Above- and Belowground Resources
Prescribed fire use in Virginia and West Virginia has increased over the past ten years as forest managers on public lands have increasingly used prescribed fire to meet management goals. These goals include hazardous fuel reduction, wildlife habitat restoration and management, and control of less …
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Factors influencing food availability for the endangered south-eastern Red-tailed Black Cockatoo Calyptorhynchus banksii graptogyne in remnant stringybark woodland, and implications for management.
… of habitat use by the cockatoos. The issue of fire management was thus considered in the context of food availability for the cockatoo population, and in relation to other factors such as periodicities between seed crops and edge effects. Phenology was monitored at six sites to assess patterns …
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Assessing the Influence of Prescribed Fire on Faunal Communities in a Pyric Landscape
… hereafter, LLP) ecosystem is an archetypal fire-mediated ecosystem, which has seen drastic reductions in land area due to fire suppression. Current restoration utilizes prescribed fire and hardwood removal, but more research is needed to understand the influence of these restoration efforts …
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Fire Severity and Plant Community Dynamics in the Australian Alps, Southeastern New South Wales
The effects of fire on plant communities are a subset of a broader range of spatial and temporal influences on plant community dynamics. Widespread unplanned fires in the Australian Alps in 2003 provided a unique opportunity to investigate the response of vascular plant species to high severity …
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Fire Severity and Plant Community Dynamics in the Australian Alps, Southeastern New South Wales
The effects of fire on plant communities are a subset of a broader range of spatial and temporal influences on plant community dynamics. Widespread unplanned fires in the Australian Alps in 2003 provided a unique opportunity to investigate the response of vascular plant species to high severity …
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Behavioral ecology of wild turkeys
… forest management strategies such as prescribed fire, however, these inferences are primarily derived from pine (Pinus spp.) forest habitat of the southeastern U.S. and are not likely applicable to hardwood forests of the Midwest. To address these unknowns, I remotely monitored Eastern wild …