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 19 of 19 for “"Notophthalmus viridescens."”.
-
Cloning of actin genes from a genomic library of the newt, Notophthalmus viridescens
… with molecular cloning of DNA sequences from N. viridescens are discussed with respect to the large genome size and abundant highly repetitive DNA sequences.
-
The Role of Alarm Pheromones in Predation Avoidance By Adult Central Newts, Notophthalmus Viridescens
… alarm system has been recently described for Notophthalmus viridescens. This alarm signalling system was tested in the field to determine if newts avoid areas marked with conspecific skin extract in a natural environment. Newts avoided traps marked with newt skin extract (NSE), but did not …
-
Diplostomulum trituri (Trematoda: diplostomatidae) a larval strigeoid trematode in the brain and cranial case of the newt, Notophthalmus viridescens (Rafinesque)
<u>Diplostomulum trituri</u> is associated with pathological damage which includes increased size of the ventricles and loss of neural tissue. Neurophysiological symptoms of parasitism include sluggish behavior and poor reflexes. Black material was observed in the lumen of the intestinal ceca. …
-
An Electrophoretic Analysis of the Denervation-Induced Changes in Soluble Protein Content of Regenerating Forelimbs of the Adult Newt, Notophthalmus Viridescens
Made available in DSpace on 2014-12-12T01:27:45Z (GMT). No. of bitstreams: 1 7500290.pdf: 1867112 bytes, checksum: fb8ee79b91fbeeb356e0bc31913a9732 (MD5) Previous issue date: 1974
-
The Distributional Ecology of Three Uncommon Salamanders in Iowa
"Ambystoma texanum", "A. laterale", and "Notophthalmus viridescens louisianensis" were studied in Iowa from the fall 1982 through summer 1984. They were found not to differ morphologically from other members of their taxa elsewhere. Significant ontongenetic and slight clinal variation were observed …
-
Response Of Salamanders To Chemical Stimuli From Predators In Natural Habitats
… to chemical stimuli from predatory newts, Notophthalmus viridescens, and (3) responses of terrestrial southern red-backed salamanders, Plethodon serratus, to chemical stimuli from predatory ringneck snakes, Diadophis punctatus. In all three experiments, responses to predator kairomones were …
-
Extended Adolescence: The Ecology and Endocrinology of Facultative Paedomorphosis
… talpoideum</em>) and eastern newt (<em>Notophthalmus viridescens</em>) are facultatively paedomorphic, which is a polyphenism with two alternative adult phenotypes: paedomorphs and metamorphs. Paedomorphs retain juvenile characteristics at sexual maturity (i.e., gills and an aquatic …
-
Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation
… water, Rana catesbeiana (American bullfrog) and Notophthalmus viridescens (eastern newt), were in greater abundances than would occur naturally. Stomach contents of R. catesbeiana contained amphibian remains confirming interspecies predation. Further, in constructed wetlands, water depth, pH, …
-
Effects of Anthropogenic Environmental Stressors on Amphibian Immune Defenses and Host-Pathogen Interactions Across Temperate and Tropical Systems
… Bd infection and skin bacteriome composition. In Notophthalmus viridescens (Eastern newts; Birmingham, AL) we found no association between CORT and Bd, and marginal support for a negative association between CORT and body condition. Overall, this research indicates that dermal CORT may indeed play …
-
Bmp proteins in urodele myotube cell cycle re-entry and in regeneration
… line, a myogenic cell line isolated from the Notophthalmus viridescens hindlimb, which traverses cell cycle until G2 in response to serum. In particular, it was found that thrombin cleavage induces a factor in serum of all animals tested so far to promote S phase re-entry in A1 myotubes. We …
-
Sexual behaviour and sexual selection in newts
… and of the North American red-spotted newt, Notophthalmus Viridescens. Both belong to the family Salamandridae of the amphibian order Urodela. Chapter 1 introduces the concept of sexual selection, and those aspects of competition and mate choice relevant to newt sexual behaviour are …
-
Interactions between Eastern Newts and Wood Frogs in an anthropogenically altered wetland system in eastern Kentucky
… a long hydroperiod (e.g., Eastern Newts [<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 …
-
Bacteriophages in the honey bee gut and amphibian skin microbiomes: investigating the interactions between phages and their bacterial hosts
… (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 isolates of Janthinobacterium lividum, a bacteria found …
-
Studying the Molecular Mechanisms for Generating Progenitor Cells during Tail Regeneration in Ambystoma mexicanum
… (axolotl) and a cell line derived from the newt Notophthalmus viridescens. In order to monitor gene expression on a cellular level during regeneration, I worked out a good in situ hybridization protocol on axolotl tissue cryosections. To be able to test gene function, I established …
-
Functional Equivalency of Created and Natural Wetlands in the Central Appalachians: Reproductive Success, Call Phenology, and Diet Composition of Amphibians
… the diet composition of adult red-spotted newts (Notophthalmus viridescens viridescens ) and compared the selection of prey by newts between created and natural wetlands. Newts were trapped during the spring and summer of 2009 and 2010, and the stomach contents of 149 newts were obtained with …
-
Amphibian and plant communities of natural and constructed upland-embedded wetlands in the Daniel Boone National Forest
… with green frogs (L. clamitans), eastern newts (Notophthalmus viridescens), and spotted/Jefferson salamanders (A. maculatum, A. jeffersonianum). Four-toed salamanders (Hemidactylium scutatum), cricket frogs (Acris crepitans), toads (Anaxyrus spp.), and chorus frogs (Pseudacris spp.) showed no …
-
Molecular Characterization of Early Dedifferentiation in Newt Forelimb Regeneration
Newts have the incredible ability to regenerate many different organs and tissues as adults, including the limbs. Limb regeneration occurs via the dedifferentiation of stump tissue and the formation of a blastema, which provides the majority of cells for the regenerate. Despite all that we have …