Since 1970, Rio Grande wild turkey (Meleagris gallapavo intermedia) numbers in the southern region of the Edwards Plateau of Texas have been declining. Nest-site characteristics and invertebrate abundance were hypothesized as limiting wild turkey numbers in declining regions. Wild turkeys were trapped and fitted with mortality-sensitive radio transmitters on 4 study areas; 2 within a region of stable (northern Edwards Plateau) populations, and 2 within a region of declining populations. Monitoring occurred from February 2001 to August 2003. Nest-site locations were determined via homing during the breeding season. Following nesting attempts/completions, nest fate, vegetation height, visual obstruction, litter depth, percent cover, and cover scores of forbs, grass, litter, and bare ground at each nest site and surrounding area were sampled. This was done to determine if wild turkey hens selected nest sites with vegetative characteristics differing from surrounding habitat. Brood survival was calculated as >1 poult surviving to 2-weeks. Broods were followed for 6-weeks post-hatch or to brood failure. Invertebrates were collected, via sweep-net and D-vac, at each visually confirmed brood location and a paired random site to determine if wild turkey hens selected brood habitat based on invertebrate abundance. Analyses were performed to determine if invertebrate abundance differed between study regions. Turkey hens selected nest sites with greater visual obstruction and more litter depth on both regions of stable and declining turkey abundance. No vegetative differences were detected between stable and declining region nest sites. Frequency of Orthoptera was 3–5 times greater at nest sites on stable regions than declining regions in all 3 years. Orthoptera is a noted food source for young galliformes and comprised the majority of dry mass in invertebrate samples, nest sites and brood locations, on both the stable and declining regions. No differences in total invertebrate dry mass were detected between regional brood locations. Nest-site vegetative characteristics did not alter nest success between regions. The 2 overall objectives of this study were to determine if nest-site vegetation characteristics and invertebrate abundance affected wild turkey numbers in the Edwards Plateau. Regional differences in vegetative characteristics were not detected, thus not likely to be causing differences in turkey numbers between regions. Nest-site invertebrates were found to be 3–5 times greater at stable region nest sites, possibly giving wild turkey poults from stable regions greater initial chances of survival.

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Increased population and recent droughts in 1996 and 2009 for the Barton Springs segment of the Edwards Aquifer have focused attention on groundwater resources and sustainability of spring flow. These springs serve as a local iconic cultural center as well as the natural habitat for the endangered Barton Springs salamander. In response to the potential compromise of these vulnerable groundwater resources, a two-dimensional, numerical groundwater-flow model was developed for the Barton Springs / Edwards Aquifer Conservation District and other governmental entities to aid in aquifer management. The objective of this study is to develop new methods of quantifying and distributing recharge for this model. The motivation for conducting this study includes the following: recent availability of more extensive data sets, new conceptual models of the aquifer system, and the desire to incorporate estimates of urban recharge. Estimates of recharge quantities and distributions for natural and artificial sources were implemented within this model to simulate discharge at Barton Springs and water-level elevations from January, 1999 to December, 2009. Results indicate that the new methods employed generated good agreement amongst simulated and observed discharge and water-level elevations (Root mean square error of 0.5 m3 sec-1 and 10.5 m, respectively). Additionally, these recharge calculations are decoupled from Barton Springs discharge which eliminates the circular logic inherent with the previous methodology. Anthropogenic, or artificial, recharge accounts for 4% of the total recharge between January, 1999 and December, 2009. Using observed data to quantify contributions from leaky utility lines and irrigation return flows, recharge estimates were completed with spatial and temporal resolution. Analyses revealed that on a month by month basis, anthropogenic contributions can vary from <1 to 59% of the total recharge. During peak anthropogenic recharge intervals, irrigation return flow is the most significant contributor. However, leakage from utility lines provides more total recharge during the study period. Recharge contributions from artificial sources are comparable to the mid-size watershed contributions over the ten-year analysis period. Urban recharge can be a critical source for buffering seasonal fluctuations, particularly during low flow periods. Outcomes are relevant for habitat conservation, drought response planning, and urban groundwater management. / text

This dissertation traces the history of Edwards High School in Gonzales, Texas, from its origins in the late 1800s through its closure in 1965 and situates Edwards within the larger framework of secondary schooling for African-Americans in Texas. Although more than two hundred high schools for African-Americans existed in Texas for some period by 1947, little is known about these institutions, especially those located in small towns. Schooling for African-Americans following the Civil War was irregular and normally consisted only of elementary grades. As more schools became available, black students received an inequitable share of resources for their education and they did not share in the groundswell of high schools available to white students. Many of the high schools that became available to African-Americans during the first part of the twentieth century were located in urban areas. Little is known of the secondary institutions for African-Americans in the small towns of Texas. This study serves to recount the story of one such school. The study pays particular attention to the students, teachers, and curriculum of Edwards High School, focusing on the years between 1935 and 1965, the year the school closed due to desegregation. Archival materials provided information on student demographics, enrollment and attendance patterns, as well as student participation in activities. Oral history interviews offered a glimpse into the lived experience of those who attended Edwards High. Teachers’ certification records and salary data informed an understanding of Edwards High School’s faculty. The study sheds light on the relationship between teachers and students and between faculty and the larger African-American community in Gonzales. The curriculum of Edwards High changed over time. Changing state classification and accreditation standards provided the impetus for these changes. This examination of Edwards High School informs a greater understanding of secondary education for African-Americans in Texas. / text

No abstract available. / Thesis (M.A.)-University of Durban-Westville, 2001.

Thesis (Ph.D.)--McMaster University, 2006. / Supervisor: John C. Robertson, Jr. Includes bibliographical references (p. 313-323).

Thesis (Th. M.)--Westminster Theological Seminary (Philadelphia, Pa.), 2008. / Includes vita. Includes bibliographical references (leaves 227-241).

Thesis (Th. M.)--Dallas Theological Seminary, 2006. / Includes bibliographical references (leaves 75-79).

Thesis (Th. M.)--Westminster Theological Seminary, Philadelphia, 1998. / Includes bibliographical references (leaves 142-154).

Thesis (Th. M.)--Westminster Theological Seminary, Philadelphia, 1991. / Includes bibliographical references (leaves 131-135).