Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
Articles 1 - 11 of 11
Full-Text Articles in Earth Sciences
Analysis Of Qa/Qc Protocols And Value Of Data To The Development Of Reference Criteria In The Georgia Ecoregions Project, Tracy Jo Ferring
Analysis Of Qa/Qc Protocols And Value Of Data To The Development Of Reference Criteria In The Georgia Ecoregions Project, Tracy Jo Ferring
Theses and Dissertations
The concept of Measurements Quality Objectives (MQOs), in bioassessment programs is a useful tool in evaluating the consistency of data and limiting variability and potential sources of measurement error. Typical evaluations of data repeatability and/or data quality center on the use of a series of calculations that quantify variability between measures. These calculations provided some indication of not only the quality of the data collected, but also acted as a measure of how representative the biological data were to each ecoregion. The evaluation of the Quality Control data for this project provides a framework for data users and water resource …
Paleoenvironmental Reconstruction Of The Late Cretaceous Eastern Gulf Coastal Plain In Georgia And Alabama, Tracy L. Hall
Paleoenvironmental Reconstruction Of The Late Cretaceous Eastern Gulf Coastal Plain In Georgia And Alabama, Tracy L. Hall
Theses and Dissertations
The present study reconstructs the regional paleoenvironment (particularly 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. Paleobotanical analysis indicates a terrestrial mean annual temperature (MAT) of about 27°C during the Late Cretaceous, which is considerably warmer than modern terrestrial MAT. Stable oxygen isotope data from molluscan carbonate indicate mean sea surface temperature (SST) of 26.8 °C for the Santonian, 23.5°C for the early Campanian, …
Seasonal Forage Availability And Diet Of Reintroduced Elk In The Cumberland Mountains, Tennessee, Jason Lee Lupardus
Seasonal Forage Availability And Diet Of Reintroduced Elk In The Cumberland Mountains, Tennessee, Jason Lee Lupardus
Masters Theses
The Tennessee Wildlife Resources Agency (TWRA) reintroduced elk (Cervus elaphus manitobensis) into the Cumberland Mountains, Tennessee over a 3-year period beginning in December 2000. We radio-collared 160 elk and monitored them by aerial telemetry from February 2001 to June 2003. Locations (n = 1450) were used in a geographic information system (GIS) to develop a core herd home range (789-ha sampling area) to assess elk seasonal forage use and availability. We monitored diet and resource availability from November 2003 to October 2004 by vegetation sampling and microhistological analysis of feces. Tall fescue (Festuca arundinacea; 35.1%) dominated …
Development Of Biological Reference Conditions Of Wadeable Streams In The Major Ecoregions And Subecoregions Of Georgia, Duncan L. Hughes
Development Of Biological Reference Conditions Of Wadeable Streams In The Major Ecoregions And Subecoregions Of Georgia, Duncan L. Hughes
Theses and Dissertations
One bioassessment tool available to resource managers to indicate NPS impairment of wadeable streams and rivers are multi-metric invertebrate indices. Such indices are assembled from metrics in broad categories that represent different aspects of community structure and function (e.g. richness, composition, tolerance/intolerance, feeding group, and habit). Indices must incorporate suites of metrics that are ecologically relevant, quantifiable, non-redundant, and that best individually discriminate between reference sites and impaired sites. More than 240 wadeable streams in Georgia were sampled during the September thru February index period using RBP protocols during three successive sample seasons (1999-2003). Ecoregional reference (minimally impaired) sites, as …
Quantifying Atmospheric Nitrogen Deposition As A Nonpoint Source Pollution And Its Potential Effects On The Mullica River-Great Bay Ecosystem, Jennifer Haag
Theses, Dissertations and Culminating Projects
To characterize atmospheric nitrogen deposition and its potential impact on the Mullica River-Great Bay Estuary, atmospheric sampling was conducted at Rutgers University Marine Field Station in Tuckerton, New Jersey from March 2004 to March 2005. A total of 52 precipitation samples were collected on an event basis using a MIC wet-only automatic precipitation sampler. A total of 23 aerosol samples were also taken during this period of time with a high-volume aerosol sampler. Chemical analysis was performed using a Dionex Ion Chromatograph to determine the concentrations of nitrate and ammonium in precipitation and associated with aerosols. Nitrate concentrations for precipitation …
Climatic And Lithogenic Controls On Soil Organic Matter-Mineral Associations, Rota Wagai
Climatic And Lithogenic Controls On Soil Organic Matter-Mineral Associations, Rota Wagai
Electronic Theses and Dissertations
Interactions of organic matter (OM) with soil mineral phases strongly affect the storage and dynamics of soil OM as well as other ecosystem processes. This study examined aspects of organo-mineral associations in soils at different scales. First, I assessed the potential controls of climate and parent rock type on organo-mineral associations using two sets of undisturbed tropical forest soils developed on two contrasting rocks along an altitudinal gradient in Borneo, Southeast Asia. Density fractionations showed that OM stored in surface mineral soils partitioned towards plant detritus fraction under cooler climates on both rock types. Thus climate exerted stronger control on …
Environmental Restoration : The Catalyst Of A City's Successful Revitalization, A Potential Application Example, City Of Camden, New Jersey, Maria Del Rocio Bosch Clark
Environmental Restoration : The Catalyst Of A City's Successful Revitalization, A Potential Application Example, City Of Camden, New Jersey, Maria Del Rocio Bosch Clark
Theses, Dissertations and Culminating Projects
This thesis aims to concisely emphasize and demonstrate the importance of the connection between urban and natural environments, towards fostering a strong and healthy quality of life for its citizens.
The notion of applying an integrated comprehensive approach to city planning and environmental restoration (such as brownfields redevelopment) is lacking throughout many communities. On the other hand, "success stories" exist around the world that link a comprehensive city plan and environmental restoration to their successes. These attestations of accomplishments demonstrate that regardless of the geographical or economic circumstances, this thesis concept might be applied.
This thesis concept is simplified by …
Short-Term And Long-Term Effects Of High Intensity Forest Fires On Soil Phyllosilicates, Jennifer Rose Reynard
Short-Term And Long-Term Effects Of High Intensity Forest Fires On Soil Phyllosilicates, Jennifer Rose Reynard
Theses, Dissertations and Culminating Projects
High intensity forest fires can alter the clay minerals found in soils. These minerals can be degraded, collapsed, as well as completely destroyed. Signatures of these fires may remain for years after the bums. To ascertain the impact of high intensity fire on soil physical properties, samples were collected from the area in and around the 2002 Hayman, Colorado, fire. These included burned samples from several areas within the perimeter of the fire (taken one to four months following the fire), unburned samples near the origin of the fire, as well as samples from areas of historic burns nearby. This …
The Effects Of Nutrient Concentrations On Macroinvertebrate Distributions In Georgia, Paula Michele Pollock Brossett
The Effects Of Nutrient Concentrations On Macroinvertebrate Distributions In Georgia, Paula Michele Pollock Brossett
Theses and Dissertations
Nutrients are considered the second largest nonpoint source pollutant in Georgia's running water ecosystems. Nutrients can naturally occur in low amounts and are typically increased in streams as a result of industry, agriculture, silviculture, and urbanization. In large amounts, nutrients can cause many problems to occur in the stream ecosystem. Macroinvertebrates have been established as good indicators for determining the level of impairment of a stream; however, not much research has been done on how nutrients affect macroinvertebrates in a stream. Approximately 225 reference and impaired streams were sampled over a 3 - year field season, (index period from September …
The Effect Of Sample Size On Rapid Bioassessment Scores And Management Efficiency, Uttam Kumar Rai
The Effect Of Sample Size On Rapid Bioassessment Scores And Management Efficiency, Uttam Kumar Rai
Theses and Dissertations
The rapid bioassessment method for stream bio monitoring generally uses a fixed count of 200 macro invertebrates as the standard subsample size. This number has been argued to be too small to provide accurate estimates on the richness of macro invertebrate communities and is believed to give misleading information pertaining to stream health. In this study, I used data collected from multiple habitats from 29 streams located in several subecoregions of Georgia to examine how the rapid bioassessment scores perform across subsample sizes of 100, 200, and 300 organisms. Subsample sizes of 100 and 200 organisms were found to underestimate …
Planar Oxides As A Novel Approach To Metal Ion Sorption Studies: From The Lab To The Field, Christine F. Conrad
Planar Oxides As A Novel Approach To Metal Ion Sorption Studies: From The Lab To The Field, Christine F. Conrad
Dissertations, Theses, and Masters Projects
The purpose of this work is to investigate the use of planar oxides as tools for metal ion sorption studies that can be used in both laboratory and field settings. to do this, a three-step approach was used. In the first step, the reactivities of the planar gamma-Al2O3 surfaces relative to pure phase gamma alumina was investigated through Pb(II) sorption studies. The relative quantitative uptake of Pb(II) on the planar gamma alumina was found to be comparable to that on the bulk. XAS analysis showed that the coordination geometry and local binding environment of the Pb(II) complexes were similar on …