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 9 of 9 for “"calling-song"”.
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The effect of gregarine parasite infections, age, and diet on calling song structure and mating behaviour in the Texas field cricket, Gryllus integer
… gut parasites, age, and diet have on the calling and mating behaviour of the male Texas field cricket, Gryllus integer. Male calling songs were recorded in the laboratory using a Digital Signal Processing Network. The song parameters measured were: pulse rate, pulse width, burst duration, …
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Behavioural and neural studies of male singing and female phonotaxis behaviour in crickets
… in crickets is achieved by the production of calling, courtship, and rivalry songs in male crickets and the recognition of the songs by conspecifics. Male crickets sing by rhythmically opening and closing the forewings to generate sound pulses and song patterns. The central command for singing …
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Motor control and directional accuracy of phonotaxis in female field crickets
… it has been established that the conspecific calling song is recognized via a circuit in the brain, it is not clear how pattern recognition is linked to descending motor control of phonotaxis. To analyze the auditory-induced motor responses, I recorded high-speed videos of crickets performing …
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Effect of age on female choice in the field cricket, Gryllus interger
… female phonotaxis. Artificially generated male calling songs of varying pulse rates were broadcast in either a singlestimulus or a three-stimulus experimental design. The pulse rates used in the calling song stimuli were 70, 64, 76, 55 and 85 pulses per second. These corresponded to the …
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The effect of diet and parasite load on female phonotaxis in the Texas field cricket, Gryllus integer
… to variations in species-specific male calling songs. This selectivity has been shown to be age-dependent; older females are less choosy. However, female quality should also affect female selectivity. The effect of female quality on mate choice was examined in Gryllus integer by …
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Studies on the neural processing of conspecific songs in the cricket Teleogryllus oceanicus (Le Guillou)
… to the identification of its conspecific songs. T. oceanicus males produce three song types related to three different behavioural strategies. Although each of the three songs have very similar frequency spectra their temporal patterns are very different and highly complex, particularly …
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Activity and Structure of Auditory Brain Neurons Underlying Phonotactic Behaviour in Female Crickets
… to recognise the temporal pattern of the male calling song. A delay-line and coincidence detector circuit with five neurons underlying auditory pattern recognition in the bi-spotted cricket Gryllus bimaculatus was identified by Schöneich et al (2015). My results here confirmed the morphology of …
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Using new tools to study the neural mechanisms of sensation: Auditory processing in locusts and translational motion vision in flies
… imaging of sound-evoked activity, as well as calling song-evoked activity in the brain. The work completed at the Janelia Research Campus began with the development of a modern version of a modular LED display and virtual reality control system to enable research on the visual control of …
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An analysis of phonotactic behaviour in the cricket Gryllus bimaculatus
… which are discussed. Chapter 6 explores the song pattern recognition of the female G. bimaculatus by changing the duration of either the first, second or third pulse of the chirps. A long first pulse decreased the phonotactic response whereas phonotaxis remained strong when the third pulse …