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Berthold Hedwig - One of the best experts on this subject based on the ideXlab platform.
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Corollary Discharge Inhibition of Ascending Auditory Neurons in the Stridulating Cricket
The Journal of Neuroscience, 2003Co-Authors: James F.a. Poulet, Berthold HedwigAbstract:Acoustically communicating animals are able to process external acoustic stimuli despite generating intense sounds during vocalization. We have examined how the crickets9 ascending auditory pathway copes with self-generated, intense auditory signals (chirps) during singing (Stridulation). We made intracellular recordings from two identified ascending auditory interneurons, ascending neuron 1 (AN1) and ascending neuron 2 (AN2), during pharmacologically elicited sonorous (two-winged), silent (one-winged), and fictive (isolated CNS) Stridulation. During sonorous chirps, AN1 responded with bursts of spikes, whereas AN2 was inhibited and rarely spiked. Low-amplitude hyperpolarizing potentials were recorded in AN1 and AN2 during silent chirps. The potentials were also present during fictive chirps. Therefore, they were the result of a centrally generated corollary discharge from the stridulatory motor network. The spiking response of AN1 and AN2 to acoustic stimuli was inhibited during silent and fictive chirps. The maximum period of inhibition occurred in phase with the maximum spiking response to self-generated sound in a sonorously stridulating cricket. In some experiments (30%) depolarizing potentials were recorded during silent chirps. Reafferent feedback elicited by wing movement was probably responsible for the depolarizing potentials. In addition, two other sources of inhibition were present in AN1: (1) IPSPs were elicited by stimulation with 12.5 kHz stimuli and (2) a long-lasting hyperpolarization followed spiking responses to 4.5 kHz stimuli. The hyperpolarization desensitized the response of AN1 to subsequent quieter stimuli. Therefore, the corollary discharge will reduce desensitization by suppressing the response of AN1 to self-generated sounds.
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Tympanic membrane oscillations and auditory receptor activity in the stridulating cricket Gryllus bimaculatus
The Journal of Experimental Biology, 2001Co-Authors: James F.a. Poulet, Berthold HedwigAbstract:The ears of stridulating crickets are exposed to loud self-generated sounds that might desensitise the auditory system and reduce its responsiveness to environmental sounds. We examined whether crickets prevent self-induced auditory desensitisation, and measured the responsiveness of the peripheral auditory system of the cricket (acoustic spiracle, tympanic membrane and tympanic nerve) during pharmacologically induced sonorous (two-winged) and silent (one-winged) Stridulation. The acoustic spiracles remained open during Stridulation, so the self-generated auditory signal had full access to both the external side and the internal side of the tympanic membrane. When the spiracles shut in resting crickets, the responsiveness of the tympanic membrane to acoustic stimuli varied according to the phase of ventilation and was minimal during expiration. The tympanic membrane oscillated in phase with the self-generated sounds during sonorous chirps and did not oscillate during silent chirps. In both sonorously and silently singing crickets, the responses of the tympanic membrane to acoustic stimuli were identical during the chirps and the chirp intervals. Bursts of activity were recorded in the tympanic nerve during sonorous chirps; however, activity was minor during silent chirps. In sonorously and in silently singing crickets, the summed nerve response to acoustic stimuli in the chirp intervals was the same as in resting crickets. The response to stimuli presented during the syllable intervals of sonorous chirps was slightly reduced compared with the response in the chirp intervals as a consequence of receptor habituation. In silently singing crickets, acoustic stimuli elicited the same summed nerve response during chirps and chirp intervals. These data indicate that in the cricket no specific mechanism acts to reduce the responsiveness of the peripheral auditory pathway during Stridulation.
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neurochemical control of cricket Stridulation revealed by pharmacological microinjections into the brain
The Journal of Experimental Biology, 1999Co-Authors: B Wenzel, Berthold HedwigAbstract:Neuroactive substances were administered into the frontal protocerebrum of tethered male Gryllus bimaculatus by pressure injections from microcapillaries. All three types of species-specific song pattern (calling song, rivalry song and courtship song) could be elicited by injection of acetylcholine and cholinergic agonists. Injection of nicotine led to short bouts of calling song that occurred after a short latency. In contrast, muscarine elicited long-lasting Stridulation that took longer to develop. The pharmacologically induced song patterns showed transitions from rivalry song to calling song and from calling song to courtship song, which also occur during natural behaviour. Stridulation induced by a cholinergic agonist could be immediately blocked by microinjection of (γ)-aminobutyric acid (GABA) into the same neuropile sites. Administration of picrotoxin in resting crickets led to enhanced motor activity that incorporated the three different song patterns. We propose that, in the brain of the cricket, acetylcholine and GABA are putative transmitters involved in the control of Stridulation. Histological analysis located the stimulation sites to an area between the pedunculus and the (α)-lobe of the mushroom body in which the command neurons for calling song have dendritic arborizations.
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Auditory information processing in stridulating grasshoppers: tympanic membrane vibrations and neurophysiology
Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology, 1994Co-Authors: Berthold Hedwig, Jens MeyerAbstract:During Stridulation in the gomphocerine grasshopper Omocestus viridulus the leg movements, sound pattern and either summed auditory nerve activity or single interneuron activity were recorded. Simultaneous laser interferometric and vibrometric measurements of the displacement and velocity of the tympanic membrane were performed at the pyriform vesicle (d-receptor group). Slow displacements of the tympanic membrane occur in phase with the ventilatory and stridulatory rhythm and reach 10 μmpeak-peak and 1–3 μmpeak-peak in amplitude, respectively. Additionally, the tympanic membrane oscillates maximally in the range 5–10 kHz. These high-frequency oscillations are due to sound production and motor activity and correspond in amplitude to oscillations evoked by sound pressures of 90-dB SPL. They activate the auditory receptors during most of the stridulatory cycle even during mute Stridulation. Only at the lower reversal point of the leg movement are membrane vibrations and receptor activity at a minimum. As a consequence the response of receptors and interneurons to auditory stimuli are generally impaired and an auditory response of receptors and interneurons can be elicited only during a short period at the lower reversal point. Although in this phase of the stridulatory cycle auditory sensitivity is present, males do not show phonotactic responses towards female songs during ongoing own Stridulation.
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on the control of Stridulation in the acridid grasshopper omocestus viridulus l i interneurons involved in rhythm generation and bilateral coordination
Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology, 1992Co-Authors: Berthold HedwigAbstract:In tethered, minimally dissected grasshoppers spiking and non-spiking interneurons in the metathoracic ganglion complex were recorded, stimulated and stained during Stridulation. The functional significance of the interneurons for the form of the Stridulation movement was tested and quantitatively analysed. Local interneurons had hemiganglionic arborizations in the lateral dorsal neuropil. They did not show branching patterns typical for Stridulation interneurons. An abdominal intersegmental interneuron had bilateral arborizations in the dorsal medial neuropil, similar to other Stridulation interneurons. The interneurons exhibited rhythmic membrane potential oscillations in the Stridulation rhythm. Intracellular stimulation modulated the form of the Stridulation movement but did not change the Stridulation cycle or the coordination of the hindlegs. Tonic stimulation changed either the amplitude of Stridulation or the leg position. Phasic stimulation revealed phase-dependent increment or decrement of the upstroke or downstroke amplitude, respectively. The motor effects were reciprocal for the antagonistic movements in the metathoracic thoraco-coxal joint. Local interneurons elicited only ipsilateral motor effects. There is evidence for a functional separation of rhythm generation, coordination and movement shaping within the Stridulation network.
Fernando Montealegrez - One of the best experts on this subject based on the ideXlab platform.
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complex wing motion during Stridulation in the katydid nastonotus foreli orthoptera tettigoniidae pseudophyllinae
Journal of Insect Physiology, 2019Co-Authors: Andrew Baker, Thorin Jonsson, Sarah Aldridge, Fernando MontealegrezAbstract:Abstract Male Katydids (Orthoptera: Tettigoniidae) rub together their specialised forewings to produce sound, a process known as Stridulation. During wing closure, a lobe on the anal margin of the right forewing (a scraper), engages with a tooth-covered file on the left forewing. The movement of the scraper across the file produces vibrations which are amplified by a large wing cell adjacent to the scraper, the mirror. Katydids are known to stridulate with either sustained or interrupted sweeps of the file, generating resonant pure-tone (narrowband frequency) or non-resonant (broadband frequency) calls. However, some species can conserve some purity in their calls despite incorporating discrete pulses and silent intervals. This mechanism is exhibited by many Pseudophyllinae, such as Nastonotus spp., Cocconotus spp., Triencentrus spp. and Eubliastes spp. This study aims to measure and quantify the mechanics of wing Stridulation in Nastonotus foreli, a Neotropical katydid that can produce, relatively narrowband calls at ≈20 kHz. It was predicted that this species will use a stridulatory mechanism involving elastic energy whereby the scraper bends and flicks along the file in periodic bursts. The calling behaviour and wing mechanics of seven males were studied using a combination of technologies (e.g. micro-scanning laser Doppler vibrometry, advanced microscopy, ultrasound-sensitive equipment and optical motion detectors) to quantify wing mechanics and structure. Analysis of recordings revealed no clear relationship between wing velocity and carrier frequency, and a pronounced distinction between wing velocity and scraper velocity during wing closure, suggesting that the scraper experiences considerable deformation. This is characteristic of the elastic scraper mechanism of Stridulation. Curiously, N. foreli might have evolved to employ elastic energy to double the duration of the call, despite possessing muscles that can reach velocities high enough to produce the same frequency without the help of elastic energy.
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functional morphology of tegmina based Stridulation in the relict species cyphoderris monstrosa orthoptera ensifera prophalangopsidae
The Journal of Experimental Biology, 2017Co-Authors: Benedict D Chivers, Thorin Jonsson, Olivier Bethoux, Fabio A Sarrias, Andrew C Mason, Fernando MontealegrezAbstract:Male grigs, bush-crickets and field crickets produce mating calls by tegminal Stridulation: the scraping together of modified forewings functioning as sound generators. Bush- (Tettigoniidae) and field-crickets (Gryllinae) diverged some 240 million years ago, with each lineage developing unique characteristics in wing morphology and the associated mechanics of Stridulation. The grigs (Prophalangopsidae), a relict lineage more closely related to bush crickets than to field-crickets, are believed to retain plesiomorphic features of wing morphology. The wing cells widely involved in sound production, such as the harp and mirror, are comparatively small, poorly delimited and/or partially filled with cross-veins. Such morphology is similarly observed in the earliest stridulating ensiferans, for which stridulatory mechanics remains poorly understood. The grigs, therefore, are of major importance to investigate the early evolutionary stages of tegminal Stridulation, a critical innovation in the evolution of the Orthoptera. The aim of this study is to appreciate the degree of specialisation on grig forewings, through identification of sound radiating area areas and their properties. For well-grounded comparisons, homologies in wing venation (and associated areas) of grigs and bush-crickets are re-evaluated. Then, using direct evidence, this study confirms the mirror cell, in association with two other areas (termed ‘neck’ and ‘pre-mirror’), as the acoustic resonator in the grig Cyphoderris monstrosa. Despite the use of largely symmetrical resonators, as found in field-crickets, analogous features of stridulatory mechanics are observed between C. monstrosa and bush-crickets. Both morphology and function in grigs represents transitional stages between unspecialised forewings and derived conditions observed in modern species.
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ultrasonic reverse Stridulation in the spider like katydid arachnoscelis orthoptera listrosceledinae
Bioacoustics-the International Journal of Animal Sound and Its Recording, 2014Co-Authors: Benedict D Chivers, Thorin Jonsson, Oscar J Cadenacastaneda, Fernando MontealegrezAbstract:This paper illustrates the biomechanics of sound production in the neotropical predaceous katydid Arachnoscelis arachnoides (Insecta: Orthoptera: Tettigoniidae). Described and previously known from only one male specimen, this genus of predaceous katydids resembles spiders in their general body appearance. To call distant females, male katydids produce songs by Stridulation where one forewing possessing a sclerotized file rubs against a row of teeth (scraper) on the other wing. In most katydid species, the songs are produced during the wing-closing phase of the Stridulation. Morphological comparative studies of the stridulatory apparatus of the type specimen of Arachnoscelis arachnoides and males of other closely related species suggest that this insect sings with a frequency of ca. 80 kHz to attract conspecific females. We found an abundant population of A. arachnoides in Central Northeast of Colombia and undertook a complete analysis of the biomechanics of Stridulation in this species. Using ultrasound-...
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sound radiation and wing mechanics in stridulating field crickets orthoptera gryllidae
The Journal of Experimental Biology, 2011Co-Authors: Fernando Montealegrez, Thorin Jonsson, Daniel RobertAbstract:SUMMARY Male field crickets emit pure-tone mating calls by rubbing their wings together. Acoustic radiation is produced by rapid oscillations of the wings, as the right wing (RW), bearing a file, is swept across the plectrum borne on the left wing (LW). Earlier work found the natural resonant frequency ( f o ) of individual wings to be different, but there is no consensus on the origin of these differences. Previous studies suggested that the frequency along the song pulse is controlled independently by each wing. It has also been argued that the stridulatory file has a variable f o and that the frequency modulation observed in most species is associated with this variability. To test these two hypotheses, a method was developed for the non-contact measurement of wing vibrations during singing in actively stridulating Gryllus bimaculatus . Using focal microinjection of the neuroactivator eserine into the cricket9s brain to elicit Stridulation and micro-scanning laser Doppler vibrometry, we monitored wing vibration in actively singing insects. The results show significantly lower f o in LWs compared with RWs, with the LW f o being identical to the sound carrier frequency ( N =44). But during Stridulation, the two wings resonate at one identical frequency, the song carrier frequency, with the LW dominating in amplitude response. These measurements also demonstrate that the stridulatory file is a constant resonator, as no variation was observed in f o along the file during sound radiation. Our findings show that, as they engage in Stridulation, cricket wings work as coupled oscillators that together control the mechanical oscillations generating the remarkably pure species-specific song.
Thorin Jonsson - One of the best experts on this subject based on the ideXlab platform.
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complex wing motion during Stridulation in the katydid nastonotus foreli orthoptera tettigoniidae pseudophyllinae
Journal of Insect Physiology, 2019Co-Authors: Andrew Baker, Thorin Jonsson, Sarah Aldridge, Fernando MontealegrezAbstract:Abstract Male Katydids (Orthoptera: Tettigoniidae) rub together their specialised forewings to produce sound, a process known as Stridulation. During wing closure, a lobe on the anal margin of the right forewing (a scraper), engages with a tooth-covered file on the left forewing. The movement of the scraper across the file produces vibrations which are amplified by a large wing cell adjacent to the scraper, the mirror. Katydids are known to stridulate with either sustained or interrupted sweeps of the file, generating resonant pure-tone (narrowband frequency) or non-resonant (broadband frequency) calls. However, some species can conserve some purity in their calls despite incorporating discrete pulses and silent intervals. This mechanism is exhibited by many Pseudophyllinae, such as Nastonotus spp., Cocconotus spp., Triencentrus spp. and Eubliastes spp. This study aims to measure and quantify the mechanics of wing Stridulation in Nastonotus foreli, a Neotropical katydid that can produce, relatively narrowband calls at ≈20 kHz. It was predicted that this species will use a stridulatory mechanism involving elastic energy whereby the scraper bends and flicks along the file in periodic bursts. The calling behaviour and wing mechanics of seven males were studied using a combination of technologies (e.g. micro-scanning laser Doppler vibrometry, advanced microscopy, ultrasound-sensitive equipment and optical motion detectors) to quantify wing mechanics and structure. Analysis of recordings revealed no clear relationship between wing velocity and carrier frequency, and a pronounced distinction between wing velocity and scraper velocity during wing closure, suggesting that the scraper experiences considerable deformation. This is characteristic of the elastic scraper mechanism of Stridulation. Curiously, N. foreli might have evolved to employ elastic energy to double the duration of the call, despite possessing muscles that can reach velocities high enough to produce the same frequency without the help of elastic energy.
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functional morphology of tegmina based Stridulation in the relict species cyphoderris monstrosa orthoptera ensifera prophalangopsidae
The Journal of Experimental Biology, 2017Co-Authors: Benedict D Chivers, Thorin Jonsson, Olivier Bethoux, Fabio A Sarrias, Andrew C Mason, Fernando MontealegrezAbstract:Male grigs, bush-crickets and field crickets produce mating calls by tegminal Stridulation: the scraping together of modified forewings functioning as sound generators. Bush- (Tettigoniidae) and field-crickets (Gryllinae) diverged some 240 million years ago, with each lineage developing unique characteristics in wing morphology and the associated mechanics of Stridulation. The grigs (Prophalangopsidae), a relict lineage more closely related to bush crickets than to field-crickets, are believed to retain plesiomorphic features of wing morphology. The wing cells widely involved in sound production, such as the harp and mirror, are comparatively small, poorly delimited and/or partially filled with cross-veins. Such morphology is similarly observed in the earliest stridulating ensiferans, for which stridulatory mechanics remains poorly understood. The grigs, therefore, are of major importance to investigate the early evolutionary stages of tegminal Stridulation, a critical innovation in the evolution of the Orthoptera. The aim of this study is to appreciate the degree of specialisation on grig forewings, through identification of sound radiating area areas and their properties. For well-grounded comparisons, homologies in wing venation (and associated areas) of grigs and bush-crickets are re-evaluated. Then, using direct evidence, this study confirms the mirror cell, in association with two other areas (termed ‘neck’ and ‘pre-mirror’), as the acoustic resonator in the grig Cyphoderris monstrosa. Despite the use of largely symmetrical resonators, as found in field-crickets, analogous features of stridulatory mechanics are observed between C. monstrosa and bush-crickets. Both morphology and function in grigs represents transitional stages between unspecialised forewings and derived conditions observed in modern species.
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Functional morphology of tegmina-based Stridulation in the relict species Cyphoderris monstrosa (Orthoptera: Ensifera: Prophalangopsidae).
The Journal of experimental biology, 2017Co-Authors: Benedict D Chivers, Thorin Jonsson, Olivier Bethoux, Andrew C Mason, Fabio A Sarria-s, Fernando Montealegre-zAbstract:Male grigs, bush crickets and crickets produce mating calls by tegminal Stridulation: the scraping together of modified forewings functioning as sound generators. Bush crickets (Tettigoniidae) and crickets (Gryllinae) diverged some 240 million years ago, with each lineage developing unique characteristics in wing morphology and the associated mechanics of Stridulation. The grigs (Prophalangopsidae), a relict lineage more closely related to bush crickets than to crickets, are believed to retain plesiomorphic features of wing morphology. The wing cells widely involved in sound production, such as the harp and mirror, are comparatively small, poorly delimited and/or partially filled with cross-veins. Such morphology is similarly observed in the earliest stridulating ensiferans, for which stridulatory mechanics remains poorly understood. The grigs, therefore, are of major importance to investigate the early evolutionary stages of tegminal Stridulation, a critical innovation in the evolution of the Orthoptera. The aim of this study is to appreciate the degree of specialization on grig forewings, through identification of sound radiating areas and their properties. For well-grounded comparisons, homologies in wing venation (and associated areas) of grigs and bush crickets are re-evaluated. Then, using direct evidence, this study confirms the mirror cell, in association with two other areas (termed 'neck' and 'pre-mirror'), as the acoustic resonator in the grig Cyphoderris monstrosa Despite the use of largely symmetrical resonators, as found in field crickets, analogous features of stridulatory mechanics are observed between C. monstrosa and bush crickets. Both morphology and function in grigs represents transitional stages between unspecialized forewings and derived conditions observed in modern species.
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ultrasonic reverse Stridulation in the spider like katydid arachnoscelis orthoptera listrosceledinae
Bioacoustics-the International Journal of Animal Sound and Its Recording, 2014Co-Authors: Benedict D Chivers, Thorin Jonsson, Oscar J Cadenacastaneda, Fernando MontealegrezAbstract:This paper illustrates the biomechanics of sound production in the neotropical predaceous katydid Arachnoscelis arachnoides (Insecta: Orthoptera: Tettigoniidae). Described and previously known from only one male specimen, this genus of predaceous katydids resembles spiders in their general body appearance. To call distant females, male katydids produce songs by Stridulation where one forewing possessing a sclerotized file rubs against a row of teeth (scraper) on the other wing. In most katydid species, the songs are produced during the wing-closing phase of the Stridulation. Morphological comparative studies of the stridulatory apparatus of the type specimen of Arachnoscelis arachnoides and males of other closely related species suggest that this insect sings with a frequency of ca. 80 kHz to attract conspecific females. We found an abundant population of A. arachnoides in Central Northeast of Colombia and undertook a complete analysis of the biomechanics of Stridulation in this species. Using ultrasound-...
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sound radiation and wing mechanics in stridulating field crickets orthoptera gryllidae
The Journal of Experimental Biology, 2011Co-Authors: Fernando Montealegrez, Thorin Jonsson, Daniel RobertAbstract:SUMMARY Male field crickets emit pure-tone mating calls by rubbing their wings together. Acoustic radiation is produced by rapid oscillations of the wings, as the right wing (RW), bearing a file, is swept across the plectrum borne on the left wing (LW). Earlier work found the natural resonant frequency ( f o ) of individual wings to be different, but there is no consensus on the origin of these differences. Previous studies suggested that the frequency along the song pulse is controlled independently by each wing. It has also been argued that the stridulatory file has a variable f o and that the frequency modulation observed in most species is associated with this variability. To test these two hypotheses, a method was developed for the non-contact measurement of wing vibrations during singing in actively stridulating Gryllus bimaculatus . Using focal microinjection of the neuroactivator eserine into the cricket9s brain to elicit Stridulation and micro-scanning laser Doppler vibrometry, we monitored wing vibration in actively singing insects. The results show significantly lower f o in LWs compared with RWs, with the LW f o being identical to the sound carrier frequency ( N =44). But during Stridulation, the two wings resonate at one identical frequency, the song carrier frequency, with the LW dominating in amplitude response. These measurements also demonstrate that the stridulatory file is a constant resonator, as no variation was observed in f o along the file during sound radiation. Our findings show that, as they engage in Stridulation, cricket wings work as coupled oscillators that together control the mechanical oscillations generating the remarkably pure species-specific song.
F. Roces - One of the best experts on this subject based on the ideXlab platform.
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Ants are deaf
The Journal of the Acoustical Society of America, 2001Co-Authors: F. Roces, Jurgen TautzAbstract:Workers of a number of ant species produce vibrational signals, a phenomenon called "Stridulation," with a specialized organ located on their gasters. Even though Stridulation can be heard by humans as faint air-borne sound, it has repeatedly been shown that ants are insensitive to the air-borne components of such signals. Instead, they are highly responsive to their substrate-borne components. Contrary to this view, it has recently been claimed that fire ants can hear stridulatory signals produced by nest mates as near-field sound, and that there is no evidence of signal transmission through the substrate in ants: In the present letter, this view is challenged by calculating the amplitude of the near-field particle oscillation around a stridulating ant and by comparing it with the sensitivity threshold of the ant sensory receptors. The amplitude is shown to be at least 50 times lower than the sensitivity threshold, a fact that precludes the perception of the signals with the stiff antennal sensilla (and Johnston organ) so far described for ants. Finally, published data and our own findings on vibrational communication in ants are summarized, clearly showing that they are highly responsive to the substrate-borne components of stridulatory signals, and insensitive to near-field sound. (C) 2001 Acoustical Society of America.
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use of Stridulation in foraging leaf cutting ants mechanical support during cutting or short range recruitment signal
Behavioral Ecology and Sociobiology, 1996Co-Authors: F. Roces, Bert HolldoblerAbstract:Foraging leaf-cutting ant workers stridulate while cutting a leaf fragment. Two effects of Stridulation have recently been identified: (i) attraction of nestmates to the cutting site, employing substrate-borne stridulatory vibrations as short-range recruitment signals, and (ii) mechanical facilitation of the cut via a vibratome-effect. We asked whether foragers actually stridulate to support their cutting behavior, or whether the mechanical facilitation is an epiphenomenon correlated with the use of Stridulation as recruitment signal. To differentiate between the two alternatives, workers of two different Atta species were presented with tender leaves of invariant physical traits, and their motivation to initiate recruitment was manipulated by varying the palatability of the leaves and the starvation of the colony. The lower the palatability of the harvested leaves, the lower the percentage of workers that stridulated while cutting, irrespective of the leaf’s physical features. After intense feeding, no workers were observed to stridulate while cutting tender leaves, and the percentage of stridulating workers increased with deprivation time. The results support the hypothesis that leaf-cutting ant workers stridulate during cutting in order to recruit nestmates, and that the observed mechanical facilitation of Stridulation is an epiphenomenon of recruitment communication.
Li Ling - One of the best experts on this subject based on the ideXlab platform.
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comparative study on the ulstra structure of Stridulation apparatus in two species of monochamus
Journal of Anhui Agricultural Sciences, 2014Co-Authors: M A Yukun, Li LingAbstract:[Objective]The research aimed to discuss whether there was lateral sulcus on Stridulation apparatus of longicorn beetles of Lamiinae. [Method]The ultrastructure of Stridulation apparatus of Monochamus alternatus Hope and Monochamus sutor L. were observed and compared by using SEM. [Result]There are lateral sulcus on the Stridulation plate in two species of Monochamus. There were obvious differences of Stridulation plate in two species of Monochamus from the shape,size,the density of sound teeth and so on,having species specificity.[Conclusion]It was deduced that it was of universality for the existence of lateral sulcus in Lamiinae based on the existence of lateral sulcus in other species of Lamiinae in the former studies.
