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 6 of 6 for “"Chemical cue"”.
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The Role of Alarm Pheromones in Predation Avoidance By Adult Central Newts, Notophthalmus Viridescens
… important role in predator/prey interactions. A chemical 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 …
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Behavioral Response of Sternotherus Odoratus to Conspecific and Predatory Chemosensory Cues
… glands exhibit similar morphological and histochemical properties across many species and release small amounts of odorous secretion. The function of this secretion is unknown, however several hypotheses exist. This study was designed to investigate the role of Rathke's secretions of …
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The utilization of chemical communication by three species of ghost shrimp, Callichirus islagrande, Callichirus major, and Lepidophthalmus louisianensis, and the transport of chemical cues within and between burrows
… of the factors affecting the potential use of chemical cues by three species of infaunal shrimp was performed in three parts. A set of modified y-maze choice experiments were performed to establish the ability of three species of ghost shrimp, Callichirus islangrande, Callichirus major, and …
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The Influence of Tail Autotomy on Avoidance of Chemical Alarm Cues in Northern Zigzag Salamanders, Plethodon dorsalis
… may use predator avoidance. Salamanders detect chemical alarm cues via the vomeronasal organ and their avoidance of the chemical cues is based upon the apparent associated risk. The objective of this study was to better understand predator avoidance by means of chemical alarm cues in northern …
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The mechanical regulation of Semaphorin3A signalling in the developing Xenopus laevis brain
… the developing brain interpret gradients of both chemical and mechanical cues for navigation. In this thesis, I investigated how these two signalling modalities interact to achieve robust axon guidance, using the Xenopus retinotectal system as a model. Specifically, I studied how the response of …
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Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects
… conditions that influence the transmission of cues indicative of predation risk. In this dissertation I investigate factors that influence how a single prey species evaluates and responds to predation risk. Here, I examined: 1) the type and nature of cues prey use to evaluate predator risk; 2) …