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.
Results
Showing 1 to 14 of 14 for “"Freshwater Turtles"”.
-
The Ecology and Evolution of the Freshwater Turtles of Southern Mississippi
<p>Turtles are one of the most threatened group of animals in existence today. The Southeastern United States is one of two global biodiversity hotspots for turtle species, including the state of Mississippi, where over 30 species can be found. However, very few studies have occurred within the …
-
Inferences about the conservation utility of using unmanned aerial vehicles to conduct rapid assessments for basking freshwater turtles
… have yet to be used successfully for sampling freshwater turtles; however, they have been used with mixed success for monitoring mammals and birds. Herein, I propose that the conservation utility of UAVs be formally assessed in the field prior to them being used to make adaptive conservation …
-
Exploring Eastern Musk Turtle (Sternotherus odoratus) Population Dynamics and Phenotypic Plasticity in Comal Springs, Texas
Freshwater turtles are vital to aquatic ecosystems but are increasingly affected by anthropogenic change. The eastern musk turtle (Sternotherus odoratus) is a small, omnivorous species inhabiting spring systems in Central Texas, where invasive gastropods have become abundant. This study …
-
Effect of Ingestion by Alligator Snapping Turtles (Macrochelys Temminckii) on Seeds of Riparian Vegetation
… turtle (Macrochelys temminckii) is a large freshwater turtle that inhabits many lotic water bodies in the Southeastern United States. The species consumes primarily fish but also consumes large amounts of vegetation including seeds of common persimmon (Diospyros virginiana), tupelos (Nyssa …
-
Invertebrate Fauna of the Carapaces of the Texas River Cooter (Pseudemys texana) and the Red-Eared Slider (Trachemys scripta elegans)
… of organisms. The relationship between algae and turtles recently has been quantified. The relationship between turtles and aquatic invertebrates is less known. This study described quantitatively the invertebrate fauna inhabiting the algal covering of the carapaces of 2 species of freshwater …
-
Seasonal Testosterone and Reproductive Cycles in Yellow-Bellied Slider Turtles (Trachemys Scripta 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: (1) compare the use of ultrasound, x-ray, …
-
Predatory and Mutualistic Interactions between Freshwater Minnows and their Predators
… to the ecosystem food web. Within North American freshwater ecosystems is the pebble nest-building minnow, the bluehead chub (Nocomis leptocephalus; "chub"). Chubs provide spawning habitat for not only themselves, but for other minnows, collectively called "nest associates". In this work, I …
-
Assessing Changes in Bog Turtle (Glyptemys muhlenbergii) Population Abundance and Factors Influencing Nest Predation in Virginia
… reptiles, fishes, mammals, and amphibians), turtles are one of the most threatened groups with over 60% of the 356 recognized species classified as threatened or worse. Bog turtles (Glyptemys muhlenbergii), are among the most imperiled of North American freshwater turtles. These small, …
-
Spatial ecology, habitat use, genetic diversity, and reproductive success: measures of connectivity of a sympatric freshwater turtle assemblage in a fragmented landscape
… implications for long-lived species such as freshwater turtles. Using integrative radio-telemetry and molecular methods, I examined characteristics in five species of turtles that should influence connectivity and long-term persistence of populations among remnant preserves within the Lower …
-
Ecotoxicology and environmental education in the development of a turtle conservation program in Southeastern Tennessee
… study to promote the conservation of freshwater turtles in the Tennessee River Gorge (TRG). The TRG consists of a 42-kilometer stretch of the Tennessee River surrounded by 27,000 acres (11,000 hectares) and is known as the "Grand Canyon of Tennessee." In 2002, the Aquarium established …
-
Bog Turtle Distribution in Virginia: Assessing Proposed Methods for Finding New Localities and Examining Movement Between Wetlands
Freshwater turtles are among the most threatened groups of taxa globally, and the bog turtle, Glyptemys muhlenbergii is among the most imperiled in North America. In Virginia, USA, bog turtles are restricted to occupying Appalachian Mountain fens. Fens are naturally small and fragmented wetlands …
-
An Assessment of the Diverse Freshwater Turtle Fauna of Mississippi
… Priority Area, Mississippi boasts impressive freshwater turtle diversity and is home to 8.6% of extant turtle species. Despite this impressive richness, few studies have assessed freshwater turtle assemblages in this hotspot of aquatic diversity. This research aimed to elucidate the …