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 “"Warning coloration"”.
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Intrasexual selection and warning color evolution in an aposematic poison dart frog
… traits arise through sexual selection, bright coloration can also evolve through natural selection. Many aposematic species, for example, use conspicuous warning coloration to communicate their noxiousness to predators. Recent research suggests these signals can also function in the context of …
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Phylogeography and the evolution of correlated traits under multiple origins of aposematism in the poison frog family
… suggested a single origin of toxicity and warning coloration. By expanding taxon sampling of the group, I reexamined the phylogenetic correlation between the origins of toxicity and warning coloration. I found four or five independent origins of aposematism; by using simulations, I rejected …
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Coloration, Camouflage, and Sexual Dichromatism in the Northern Pacific Rattlesnake (Crotalus oreganus)
… viperid snakes, natural selection has shaped coloration and patterning to match local habitats, and for males to show greater warning coloration than females due to a less sedentary lifestyle. The Northern Pacific Rattlesnake (<em>Crotalus oreganus) </em>is likely the most abundant ambush …
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To and fro in the archipelago: Repeated inter-island dispersal, eustasy and New Guinea’s orogeny affect diversification of Delias, the world’s largest butterfly genus
… brightly colored wing patterns, presumably as warning coloration. However, probable factors explaining the species-richness of this genus remain unclear. Previous studies lacked sufficient data and sampled less than half the species. In where <em>Delias</em> is found, the diversification of …
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Phenotypic consequences of adaptive toxin production and resistance in coevolutionary partners
… for carotenoid pigments to produce both TTX and warning coloration. When threatened, Taricha assume a specific defensive posture known as the 'unken reflex' in which they display bright orange bellies against a dark dorsal surface. Because newts are defended by TTX, this behavior is assumed to be …