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 5 of 5 for “"Paedomorphosis"”.
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Extended Adolescence: The Ecology and Endocrinology of Facultative Paedomorphosis
… context in which the larvae develop, with paedomorphosis often occurring under favorable aquatic conditions. I conducted a series of experiments to investigate the roles of population density, predator presence, hydroperiod, and stress hormones in regulating the expression of …
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Ontogeny and evolutionary morphology of the skeleton in frogs
… in the context of functional constraints and paedomorphosis.
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Two races of Etheostoma flabellare flabellare Rafinesque from the Roanoke River of Virginia and the Neuse River of North Carolina
… color patterns in the adult Neuse female. Paedomorphosis, in the Neuse fantail, accounts for most of the major differences between the populations.
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Genetic, Morphological, and Behavioral Analysis of the Oklahoma Salamander (Eurycea Tynerensis) in Southwestern Missouri
I investigated populations of Eurycea tynerensis which differed in coloration and life history mode. Using morphometrics and behavioral trials, I tested two sympatric color morphs for the presence of a cryptic species. I also obtained sequence data from the mitochondrial cytochrome-b gene of 21 …
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Role of KNOX genes in the evolution and development of floral nectar spurs
A key question in biology is how changes in gene function or regulation produce new morphologies during evolution. The nectar spur is an evolutionarily labile structure known to influence speciation in a broad range of angiosperm taxa. Here, the genetic basis of nectar spur development, and the …