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 9 of 9 for “"bullfrogs"”.
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Blood coagulation properties in hibernating and non-hibernating American bullfrogs (Lithobates catesbeianus)
1 PDF file (viii, 67 pages)
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The Structure and Function of Amphibian Skin Bacterial Communities and Their Role in Susceptibility to a Fungal Pathogen
… a field survey of bacterial communities from bullfrogs, newts, pond water, and pond substrate at a single pond, and newts from multiple ponds. There was variation among amphibian host species and populations in their skin symbionts, and, in a host species-specific manner, amphibian skin may …
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Prevalence assessment of the amphibian chytrid fungus Batrachochytrium dendrobatidis across two habitat types in East Tennessee
… to inform management decisions. Using American Bullfrogs (Lithobates catesbeianus) and Green Frogs (Lithobates clamitans) as study organisms, this research sought to investigate how prevalence of Bd varies between natural wetlands and urban retention ponds in East Tennessee while also examining …
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Identification and bioactivity assessment of a protease inhibitor QUB-1833 from the skin secretion of Lithobates catesbeiana
… But the research on the bioactive peptides in bullfrogs is not thorough. Therefore, the research objectives in this study are isolation, identification, and bioactivity assessment of bioactive peptides from Lithobates catesbeiana skin secretions.<br/><br/>Using 'shotgun' cloning and DNA …
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Biomechanics of Hierarchical Elastic Systems
… complex of the hindlimbs of American bullfrogs, in which the muscle dynamics are well understood and the duration of spring loading is low. I find that the measured spring constants of the tendons nearly maximize energy storage within the duration of in vivo spring loading. …
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Anura of Eastern South Dakota: Their Distribution and Characteristics of Their Wetland Habitats, 1997-1998
… the occurrence of plains spadefoots and bullfrogs. Eastern grey treefrogs and Cope's grey treefrogs only occurred in semipermanent wetlands that were 0.4 to 0.8 ha in size, while wood frog occurrences were limited to permanent wetlands of 0.4 to 0.8 ha. Based on my surveys, 4 species had …
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Interactions between Eastern Newts and Wood Frogs in an anthropogenically altered wetland system in eastern Kentucky
… [<em>Notophthalmus viridescens<em>], American Bullfrogs [<em>L. catesbeianus<em>], and Green Frogs [<em>L. clamitans<em>]). The new members of the amphibian community assemblage are top predators known to consume various amphibian life stages. Some ephemeral wetland species will breed in …
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Studies on a Stomach Proteolytic Enzyme From Rana Catesbeiana
No abstract prepared.
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Bacteriophages in the honey bee gut and amphibian skin microbiomes: investigating the interactions between phages and their bacterial hosts
… of bacteria isolated from the skin of American bullfrogs (Lithobates catesbeianus), eastern newts (Notophthalmus viridescens), Spring peepers (Pseudacris crucifer) and American toads (Anaxyrus americanus). Prophages were additionally identified in publicly available genomes of non-amphibian …