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  Partner: UNT Libraries
 Country: United States
 Degree Discipline: Biology
 Collection: UNT Theses and Dissertations
Degradation of Complex Carbon Compounds by Marine Actinomycetes

Degradation of Complex Carbon Compounds by Marine Actinomycetes

Date: August 1959
Creator: Willingham, Charles Allen
Description: The purpose of this paper is to present a comparative study of marine bacteria, molds and actinomycetes in regard to their ability to degrade certain pure and mixed complex compounds possibly occurring in the lagoon waste traps of the Texas Gulf Coast. This comparison was made using a differential oxygen uptake as the index of specific compound utilization.
Contributing Partner: UNT Libraries
Density, Distribution, Production and Drift of Benthic Fauna in a Reservoir Receiving Thermal Discharges from a Steam Electric Generating Plant

Density, Distribution, Production and Drift of Benthic Fauna in a Reservoir Receiving Thermal Discharges from a Steam Electric Generating Plant

Date: December 1972
Creator: Durrett, Charles W.
Description: The effects of thermal discharges on the density, distribution, production, and drift of benthic organisms were studied at North Lake reservoir.
Contributing Partner: UNT Libraries
Descriptions, Life History and Case-Building Behavior of Culoptila cantha (Trichoptera: Glossosomatidae) in the Brazos River, Texas

Descriptions, Life History and Case-Building Behavior of Culoptila cantha (Trichoptera: Glossosomatidae) in the Brazos River, Texas

Date: August 1997
Creator: Houghton, David Charles
Description: Larval, pupal and adult samples of Culoptila cantha, from a large riffle of the Brazos River in north-central Texas from January, 1995 to March, 1997, indicated a predominately trivoltine cycle during both years; the over-wintering generation spanned 6-7 months and warm-season generations spanned 2-3 months. Eggs, larvae of all instars, larval cases, case reconstruction progression and behavior, pupae, and adults are described.
Contributing Partner: UNT Libraries
The Destruction of Enterobacteriaceae by the Sewage Plants of Decatur, Texas.

The Destruction of Enterobacteriaceae by the Sewage Plants of Decatur, Texas.

Date: 1949
Creator: Gettys, Charles T. (Charles Thomas), 1921-2007
Description: The nature of this problem divides itself into two parts, that is, a study of the old sewage plants in operation through the summer of 1947 and a study of the new plant put in operation during the fall of the same year.
Contributing Partner: UNT Libraries
Developing Range Condition Classes for the North Grand Prairie of Texas

Developing Range Condition Classes for the North Grand Prairie of Texas

Date: 1946
Creator: McConnell, Mack
Description: This paper deals with a study of the ranch lands in Cooke, Wise, Denton, and Montague Counties, which are located in the North Grand Prairie of Texas.
Contributing Partner: UNT Libraries
Distribution of Phosphates in a Sewage Plant and its Receiving Waters

Distribution of Phosphates in a Sewage Plant and its Receiving Waters

Date: May 1969
Creator: Hansard, John D.
Description: The purpose of this paper is to detail the distribution and quantity of soluble phosphates in an activated sludge plant, its discharge creek, and receiving reservoir. The resultant analyses and comparison of data should provide some better understanding of the fate of phosphorus in a Southwestern waterway system.
Contributing Partner: UNT Libraries
Distribution, Size, Condition, and Food Habits of Selected Fishes in a Reservoir Receiving Heated Effluent from a Power Plant

Distribution, Size, Condition, and Food Habits of Selected Fishes in a Reservoir Receiving Heated Effluent from a Power Plant

Date: December 1972
Creator: McNeely, David L.
Description: This study was undertaken in order to provide further insight into the effects of artificial heating on the fisheries of a small reservoir in the Southwest. The following specific objectives were established: (1) to map the reservoir for the distribution of heated water, (2) to determine the distribution of selected species of sports, rough, and forage fish in areas affected by the effluent and in areas not affected, (3) to compare size and condition of selected species of fish from areas affected by the effluent to size and condition of fish from areas not affected, and (4) to compare food habits of channel catfish in areas affected by the effluent to the food habits of channel catfish in areas not affected.
Contributing Partner: UNT Libraries
Documentation of Biodiversity Impacts (Including Cumulative Biodiversity Impacts) in Environmental Impact Statements

Documentation of Biodiversity Impacts (Including Cumulative Biodiversity Impacts) in Environmental Impact Statements

Date: August 1998
Creator: Bhatia, Sarika
Description: In the United States, biodiversity impact assessment has historically received little attention. Responding in 1993, the Council on Environmental Quality (CEQ) released guidelines on incorporating biodiversity into environmental impact assessment under the National Environmental Policy Act of 1969. The objectives of the study here were to identify the level of documentation of biodiversity impact assessment in sample Environmental Impact Statements (EISs); identify whether in the years following the release of 1993 CEQ guidelines any significant changes have taken place in assessment of biodiversity; identify deficiencies, and if the need exists, formulate appropriate recommendations and approaches for addressing biodiversity in EISs. The study involved a systematic review of 30 EISs published since the release of CEQ guidelines, and five EISs published prior to it. The review involved answering a series of standard questions, which attempted to ascertain the level of biodiversity impacts included in each impact statement. Trends in approaches to biodiversity impact assessment were investigated and deficiencies summarized. The analysis resulted in a series of recommendations for improving the manner in which biodiversity impact assessment can be approached.
Contributing Partner: UNT Libraries
Ecological Association Between the Red-Cockaded Woodpecker and Southern Pine Beetle in the Homochitto National Forest: a Geographic Information System Approach

Ecological Association Between the Red-Cockaded Woodpecker and Southern Pine Beetle in the Homochitto National Forest: a Geographic Information System Approach

Date: December 1998
Creator: Skordinski, Karen R. (Karen Renee)
Description: Since the introduction of management practices by the Forest Service to stabilize red-cockaded woodpecker (RCW) populations, the number of cavity trees killed by southern pine beetles (SPB) has increased. A model of the landscape ecology of RCW and SPB in the Homochitto National Forest was created using data collected from the Forest Service and Global Atmospherics. The conclusions of the study were that the RCW and SPB utilize the same type of habitat and the stand hazard maps are an accurate means of determining the locations of SPB infestations. The functional heterogeneity maps created for the SPB and RCW would be useful predictors of future occurrences of either species if complete data were obtained.
Contributing Partner: UNT Libraries
Ecological Distribution of the Herpetofauna of Montague County, Texas

Ecological Distribution of the Herpetofauna of Montague County, Texas

Date: August 1969
Creator: Moulton, Bruce A.
Description: The purpose of this study was to make a preliminary study of the herpetofauna of Montague County in relation to ecological distribution. Also taken into consideration were the zoogeographic relationships of the various species.
Contributing Partner: UNT Libraries