Global ETD Search
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Showing 1 to 8 of 8 for “"Blowflies"”.
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Mechanisms underlying chasing behaviour of male blowflies
Male blowflies chase and catch other flies in fast acrobatic flights. To unravel the underlying control system, I presented a black moving sphere instead of a real fly as pursuit target. By varying the size and speed of the target, this paradigm allowed a systematic analysis of the decisive visual …
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The analysis of the artefacts produced by forensically significant blowfly (Diptera: Calliphoridae) activity and their effect on bloodstain pattern analysis
… execution of a violent crime. At a crime scene, blowflies feed on bloodstains and deposit artefacts that may cause confusion during crime scene reconstruction. Experimental cages of two possible crime scene surfaces (paper to simulate wallpaper and linoleum) were developed such that fly artefacts …
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Visual navigation of a virtual blowfly
Blowflies are acrobatic flyers controlling their flight path mainly on the basis of visual motion information. Modelling the motion pathway in the fly visual system and closing the control loop to behaviour is the topic of this thesis. Like many other animals, the blowfly exploits the optic flow, a …
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On the ecological transitions between parasitism and mutualism
… also commonly face fierce competition from blowflies for the resources upon a carcass. Combining field manipulations and laboratory experiments, I find that mites are in a protective mutualism with beetles because they eliminate blowflies from the carcass, and so promote burying beetle …
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Conditioning and retention, as studied in a behavior-genetic analysis of the blowfly Phormia regina: A search for relationships between learning and memory
… to sucrose (unconditioned stimulus), individual blowflies (Phormia regina) were classically conditioned to saline (conditioned stimulus). Directional and stabilizing selection for retention and conditioning, respectively, have bred two strains of flies originating from a single foundation …
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Advances in solid phase microextraction for the analysis of volatile compounds in explosives, tire treatments, and entomological specimens
<p>Solid phase microextraction is a powerful and versatile technique, well-suited to the analysis of numerous samples of forensic interest. The exceptional sensitivity of the SPME platform, combined with its adaptability to traditional GC-MS systems and its ability to extract samples with minimal …