RSS 1.0Theses and Dissertations-Biology
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Recent Submissions
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Impact of nitrite on goldfish (Carassius auratus) microbiomes and probiotic design
(2021-05)No abstract prepared. -
Urbanization affects the physiology, behavior, and life-history traits of a tolerant stream fish
(2020-05)Anthropogenic land-use conversion is one of the main drivers of wildlife population extinctions and biodiversity loss. Freshwater fishes are among the taxa most affected by land-use conversion, with an estimated 25% of ... -
Investigating motility performance of Batrachochytrium dendrobatidis zoospores and its association with mitochondrial density and pathogenicity
(2020-05)Chytridiomycosis, an emerging infectious disease caused by Batrachochytrium dendrobatidis (Bd), has spread globally and demonstrates high genetic diversity amongst multiple strains. I investigated the use of a ... -
Artificial light at night alters physiology, behavior, and reproduction in the western mosquitofish (Gambusia affinis)
(2020-05)Human population growth and its associated effects have contributed to the rapid decrease of biodiversity worldwide. Artificial light at night (ALAN) is an anthropogenic pollutant that is increasing with the spread of ... -
Spore-formation of inoculated Frankia strains in nodules formed on Alnus glutinosa
(2020-05)Members of the genus Frankia are soil-dwelling actinobacteria that are generally characterized as nitrogen-fixing symbionts forming root nodules on specific woody plants. In nodules, the presence or absence of spores ... -
Anatomy and Morphology of the Seed Coat in the Texas Species of Argemone (Papaveraceae)
(2022-05)Argemone is one of the largest genera within Papaveraceae, comprising 32 species of annual, biennial, or perennial herbs. The most recent complete taxonomic revision of the Texas species of Argemone is included ...
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Trace element concentrations among functional feeding groups in the estuarine food web in Middle Hempstead Bay, Long Island, New York
(2022-05)Estuaries are productive ecotones that are vulnerable to anthropogenic contamination due to human population density, overharvesting of marine resources, and an increase in urbanization and industrialization along coastlines. ... -
Mercury Accumulation and Tissue Distribution in Waterbirds Overwintering in Texas
(2022-05)Mercury (Hg) is global pollutant that is toxic to wildlife at low concentrations. In waterbirds, exposure to Hg has resulted in altered breeding behavior, reduced hatching success, and nest abandonment. There have only ... -
Factors influencing scaling relationships of body mass and antler mass in white-tailed deer (Odocoileus virginianus)
(2022-05)Antlers are a costly trait that require skeletal reserves to grow to a large size. Thus, insight into variation in antler size requires understanding the connection between antler and body size, which can be summarized ... -
Regional Assessment of Inland Fish Mortalities Associated with Winter and Cold-shock Stresses
(2022-05)The winter is generally regarded as a stressful period for ectothermic animals (i.e., Winter Stress Syndrome), which can be exacerbated by cold shock stress associated with major arctic freezes. Although loosely defined, ... -
Implications of Cropping Rate Variability on the Costs of Vigilance
(2022-05)Large grazing ungulates must forage for much of their active time to meet the energy demands of their massive bodies because they depend on nutrient-poor grasses and forbs. As such, maximizing efficiency of foraging bouts ... -
Spatial Gradients and Food Web Structure of Groundwater Communities
(2022-05)The Edwards Aquifer (EA) and its springs in Texas are some of the most biologically unique and diverse subterranean-surface coupled systems on the planet, containing many endemic and endangered crenic and hypogean species. ... -
The relationship between black-capped vireo (Vireo atricapillus) territory density and prescribed burn and environmental variables at the Kerr Wildlife Management Area, Kerr County, Texas
(1999-05)Vireo territory density may be impacted not only by prescribed burn related factors (such as intensity and time since burn), but also by other environmental variables, including vegetation, rainfall, and soil types. In ... -
Identifying sediment nutrients that further characterize the habitat associated with the endangered Texas wildrice (Zizania texana Hitch)
(1999-05)Interstitial water samplers (peepers) were used to examine porewater nutrients associated with a particular stand of the endangered aquatic macrophyte, Texas wildrice (Zizania texana Hitchcock), in the San Marcos ... -
An investigation into the diet of the brown-headed cowbird (Molothrus ater)
(1998-12)No abstract prepared. -
Effects of current velocity on habitat suitability of exotic giant ramshorn snails (Marisa cornuarietis) in Comal Springs, Texas
(1998-12)The effect of velocity on habitat suitability of Marisa cornuarietis (Pilidae) was studied over a four month (28 Feb 98 - 12 June 98) period at Landa Lake, New Braunfels, Comal Co., TX, and in the laboratory. Well ... -
Water conservation in Central Texas: Sustainable water savings and future applications
(2011-05)The population in Central Texas is expected to increase over 100% between 2010 and 2060 significantly increasing municipal water demands, which may be further complicated by climate change and drought (Texas Water Development ... -
The mating system of the Mexican free-tailed bat (Tadarida brasiliensis mexicana) in a large bridge colony
(1998-12)In 1998, the mating period of the Mexican free-tailed bat (Tadarida brasiliensis mexicana) in central Texas lasted from 21 March through 5 April. Copulations were documented in large roosts (which can number in the ...
