Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"trachemys"”.
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Seasonal Testosterone and Reproductive Cycles in Yellow-Bellied Slider Turtles (Trachemys Scripta Scripta)
<p>The yellow-bellied slider (Trachemys scripta scripta) is one of the most common species of freshwater turtles in the southeastern United States, yet little information pertaining to its reproductive biology and seasonal hormone cycle has been documented. The major purposes of this study were to: …
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Elucidating the conservation status of Michigan's red-eared slider (trachemys scripta elegans): A phylogeographic approach
<p>The geographic origin of Michigan’s Trachemys scripta elegans has been a contentious subject since its first description in 1934. At that time two explanations were proposed: 1) populations of T. s. elegans are native to Michigan and naturally expanded their range from Ohio and Indiana; or 2) …
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Fossil Trachemys (Testudines: Emydidae) from the Late Hemphillian of Eastern Tennessee and Its Implications for the Evolution of the Emydidae
<p><em>Trachemys</em> (Testudines: Emydidae) represents one of the most well-known turtles today. The evolution of <em>Trachemys</em>, while being heavily documented with various fossil representatives, is not well understood. Numerous fossils from the Gray Fossil Site in northeastern Tennessee are …
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Growth, Diet, and Reproduction of the Red-Eared Slider (Trachemys Scripta) Inhabiting a Reservoir Receiving a Cold Effluent
Red eared sliders, Trachemys scripta, were collected from two habitats at Lake Taneycomo from April 1992 to July 1993. One site was a hypothermic cove near Rockaway Beach, Missouri, and the second site was a normothermic cove in a tributary of Lake Taneycomo known as Bull Creek. The diets of adult …
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Nest Emergence and Chemosensory Mediated Predator Avoidance: Two Studies of Behavior in the Red-Eared Slider (Trachemys Scripta Elegans)
Predator avoidance is a key to the survival of any species. The emergence of offspring in a single event (mass emergence) aids early in life, while the ability to detect predators by olfactory means aids throughout. In one experiment, the effect of constant versus changing surface temperature on …
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Invertebrate Fauna of the Carapaces of the Texas River Cooter (Pseudemys texana) and the Red-Eared Slider (Trachemys scripta elegans)
… (Pseudemys texana) and the Redeared slider (Trachemys scripta elegans) at Spring Lake, Hays County, Texas. Turtles were captured from August through November 2002 using hoop nets, basking traps, and dip nets. Invertebrate samples were obtained by scraping a small area of the carapace to …
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The mechanism and function of transient pressure fluctuations occurring in the lungs during diving in the turtle, Trachemys (=Pseudemys); scripta elegans
… of all voluntary dives in the aquatic turtle, Trachemys scripta elegans. LPTs were studied to determine if they could enhance pulmonary gas exchange. Skeletal muscle is the primary mechanism responsible for creating these pressure fluctuations, based on their persistence following inactivation …
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Cell Cycle Regulation by Post-Translational and Post-Transcriptional Mechanisms in an Anaerobic Extremist- the Anoxia Tolerant Turtle, Trachemys Scripta Elegans
As a model for vertebrate long-term survival in oxygen restricted environments, the red-eared slider turtle (T. s. elegans) can adapt at the biochemical level to deal with hibernation occurring in oxygen-free (anoxic) cold water (<10°C). In this thesis I hypothesized that the mechanisms which …
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Influence of Ultraviolet Light, Righting Response, and Community Structure in Aquatic Turtles
… of UV-B light bulbs on growth in slider turtles (Trachemys scripta: N = 243) from hatching to eight months of age. Growth was defined as the difference between initial and final carapace length and mass and was analyzed against treatment and row via analyses of variance (ANOVA). A significant …
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Locomotor kinematics of turtles moving in shallow water environments
… thesis, I chose different size red-eared slider (Trachemys scripta elegans) turtles to investigate their locomotion during discreet water depth, as well as during shallow water locomotion and investigated whether bone shape can be predictive of the environment they live in.
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An Assessment of the Diverse Freshwater Turtle Fauna of Mississippi
… has allowed for lentic species, notably <em>Trachemys scripta elegans</em>, to attain extremely high abundances in the Tombigbee when compared to the Pascagoula.</p>
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A Herpetofaunal Survey of Boehler Seeps and Sandhills Preserve with an Emphasis on Turtle Communities and the Ecology of Deirochelys Reticularia Miaria
… subrubrum, Sternotherus odoratus, and Trachemys scripta were the dominant species in both lakes. The community structure and distribution of biomass differed between the lakes, but when species were grouped by niche type, the biomass of each guild was nearly identical in both lakes. I …
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Seed Dispersal by Aquatic Turtles
… (Chelydra serpentina) and the red-eared slider (Trachemys scripta). Large numbers of mulberry (Morus spp.), barnyard grass (Echinochloa crus-galli) and curly dock (Rumex crisus) seeds were observed in the feces of sliders and snappers from a farm pond in Christian County, Mo. Feeding trials were …
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Characterizing the epidemiology of ranavirus in North American chelonians: diagnosis, surveillance, pathogenesis, and treatment
… environmental temperatures, red-eared sliders (Trachemys scripta elegans) inoculated through intramuscular injection with a FV3-like virus had higher mortality rates when maintained at 22oC than at 28oC, supporting the theory that this virus is less virulent at higher temperatures. FV3-like DNA …
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Morphogenesis and Female Fate Determination in Vertebrates
… We selected the red-eared slider turtle Trachemys scripta as a model with which to address this question. We first characterized the cellular composition of the turtle gonad before and after sex determination, identifying four populations of somatic cells distinguishable by their location …
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The Effects of Commercial Harvest on the Density and Demography of Aquatic Turtles in Arkansas
… of nine species including red-eared sliders (Trachemys scripta; N = 2695), spiny softshell turtles (Apalone spinifera; N = 640), common musk turtles (Sternotherus odoratus; N = 508), eastern mud turtles (Kinosternon subrubrum; N = 81), common snapping turtles (Chelydra serpentina; N = 56), …
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Ecotoxicology and environmental education in the development of a turtle conservation program in Southeastern Tennessee
… from two turtle species, the Cumberland slider (Trachemys scripta troosti) and the common musk turtle (Sternotherus odoratus) were analyzed for the presence of 83 PCB congeners, 24 PBDE congeners, 6 DDT congeners, and 12 additional organochlorine pesticides using GC/MS operating in electron …
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Invasive species: fundamental and applied science
… and risks of four commonly traded pet turtles – Trachemys scripta scripta, T. s. troostii, Sternotherus odoratus, Kinosternon subrubrum – using Relative Invasion Risk, an adapted version of RIP that incorporates propagule pressure. T. s. scripta was found to have high impact, corroborating its …
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