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Full-Text Articles in Social and Behavioral Sciences
Using Spatial Analysis To Evaluate Fire Activity In A Pine Rockland Ecosystem, Big Pine Key, Florida, Usa, Lauren Ashley Stachowiak
Using Spatial Analysis To Evaluate Fire Activity In A Pine Rockland Ecosystem, Big Pine Key, Florida, Usa, Lauren Ashley Stachowiak
Doctoral Dissertations
Pine rocklands are fire-prone ecosystems with limited spatial extent, and have experienced reduced area in the previous decades through habitat conversion and urbanization. The purpose of this dissertation research was to evaluate the historical range of variability of fire activity and spatial patterns of fires in a pine rockland ecosystem in the National Key Deer Refuge (NKDR) on Big Pine Key in the Lower Florida Keys. To investigate the temporal and spatial patterns in fire activity, I (1) evaluated the temporal patterns for fires in my study area in the NKDR, (2) analyzed differences in standard fire history metrics since …
Dendrogeomorphic Analysis Of Debris Slides On Mt. Le Conte, Great Smoky Mountains National Park, Tennessee, U.S.A., Maegen Lee Rochner
Dendrogeomorphic Analysis Of Debris Slides On Mt. Le Conte, Great Smoky Mountains National Park, Tennessee, U.S.A., Maegen Lee Rochner
Masters Theses
Research conducted during the past 30 years tested the use of tree rings to date mass movement events in the mountain areas of Europe and the western and southwestern United States, but few studies have been performed in the eastern U.S., where debris flows, landslides, and rock falls in the Appalachian Mountains pose a common threat to human life and property. One area of particular interest is Great Smoky Mountains National Park (GSMNP). For this study, I tested mature red spruce (Picea rubens Sarg.) trees located on or near a debris slide boundary on Mt. Le Conte (LC01) in …
Climate Drivers Of Wildfire Activity In The Magdalena Mountains Of New Mexico, U.S.A., Elizabeth Anne Schneider
Climate Drivers Of Wildfire Activity In The Magdalena Mountains Of New Mexico, U.S.A., Elizabeth Anne Schneider
Masters Theses
In recent years, crown fires have raged through mixed-conifer forests in the American Southwest that historically experienced frequent, low-severity wildfires. Land management agencies now wish to restore wildfires to their historical range of variability, but this requires information on fire regimes before Euro-American disturbance took place. We characterized the historical fire regime of a high elevation, mixed-conifer forest in the Magdalena Mountains, New Mexico. This research evaluated the different climate drivers, represented by the Palmer Drought Severity Index (PDSI), the El Niño-Southern Oscillation (ENSO), the Pacific Decadal Oscillation (PDO), and the Atlantic Multidecadal Oscillation (AMO), that influence the occurrence of …
A Dendroecological Evaluation Of The Effects Of Coal Ash On Tree Growth, Kingston Fossil Plant, Harriman, Tennessee, U.S.A., Niki Ann Garland
A Dendroecological Evaluation Of The Effects Of Coal Ash On Tree Growth, Kingston Fossil Plant, Harriman, Tennessee, U.S.A., Niki Ann Garland
Masters Theses
Tree growth is a function of many environmental variables, and it is possible to detect differences between natural and human-related factors on tree growth. Radial growth of trees in one year and in subsequent years that follow is influenced not only by climate and other overarching multi-year processes, but also by pulse disturbance events. On December 22, 2008, an embankment at an impoundment for wet storage of fly ash at the Kingston Fossil Plant, Harriman, Tennessee collapsed, releasing 4,434,400 cubic meters of coal ash into the Clinch and Emory Rivers, impacting aquatic life as well as terrestrial flora and fauna. …
Fire Regimes Of Lower-Elevation Forests In Great Smoky Mountains National Park, Tennessee, U.S.A., Lisa Battaile Laforest
Fire Regimes Of Lower-Elevation Forests In Great Smoky Mountains National Park, Tennessee, U.S.A., Lisa Battaile Laforest
Doctoral Dissertations
Disturbance is a natural part of any forest ecosystem. When disturbance regimes are altered, the forest stands will reflect those changes. Southern Appalachian xeric pine-oak woodlands are one forest type that has experienced such change, primarily in the form of fire suppression. The western side of Great Smoky Mountains National Park contains stands of large trees that escaped earlier intensive logging, show evidence of past fire, and provide an ideal setting for reconstructing stand histories. For three lower-elevation (ca. 500 m ASL) study sites, I used crossdated yellow pine tree-ring chronologies and records from cross-sections taken from living and dead …
Dendroclimatic Analysis Of Climate Oscillations For The Southeastern United States From Tree-Ring Network Data, Yanan Li
Masters Theses
Dendroclimatological research along a geographical gradient is important to understanding both spatial and temporal characteristics of climate influences on tree growth. In this study, three tree-ring width chronologies, obtained from field collection and previous research, were used to represent tree growth along a longitudinal transect from coast to inland in the southeastern U.S.: Hope Mills, located at the Atlantic Coastal Plain; Linville Mountain, located on the eastern side of the Appalachian Mountains; and Gold Mine Trail, located on the western side of the Appalachians. The variations of ring width indices in chronologies reflect extreme climatic events such as severe droughts …
Influences Of Climate And Anthropogenic Disturbances On Wildfire Regimes Of The Zuni Mountains, New Mexico, U.S.A., Monica Tyson Rother
Influences Of Climate And Anthropogenic Disturbances On Wildfire Regimes Of The Zuni Mountains, New Mexico, U.S.A., Monica Tyson Rother
Masters Theses
This research examined the fire history of ponderosa pine (Pinus ponderosa Douglas ex P. Lawson & C. Lawson) forests in northwestern New Mexico. The study area included three sites in the Zuni Mountains of Cibola National Forest and one site along the boundary of El Malpais National Monument. I crossdated over 800 fire scars on 75 samples to reconstruct spatial and temporal characteristics of historic wildfire regimes. The Weibull Median Interval, Weibull Modal Interval, and Mean Fire Interval ranged from five to eight years across all sites and percent-scarred classes (all fires, 10% scarred, and 25% scarred) and indicated that …
Fire History From Dendrochronological Analyses At Two Sites Near Cades Cove, Great Smoky Mountains National Park, U.S.A., Ian C. Feathers
Fire History From Dendrochronological Analyses At Two Sites Near Cades Cove, Great Smoky Mountains National Park, U.S.A., Ian C. Feathers
Masters Theses
Fire, logging, livestock grazing, and insect outbreaks are disturbances that have significantly influenced both the historic and present fire regimes. The composition and structure of vegetation communities within Great Smoky Mountains National Park (GSMNP) have likely changed in response to these disturbances. Two study sites (CRX, the near site, and CRT, the far site) were chosen along the Cooper Road Trail based on topographic separation, presence of mixed oak-pine communities, presence of fire-scarred yellow pine trees, and GSMNP land acquisition records. To quantify and evaluate fire regimes, individual fire histories were developed for each site from fire-scarred yellow pine trees, …