Resonant Sound Production in<i>Copiphora gorgonensis</i>(Tettigoniidae: Copiphorini), an Endemic Species from<i>Parque Nacional Natural Gorgona</i>, Colombia

Montealegre‐Z, Fernando; Postles, Matthew

doi:10.1665/034.019.0223

Cited by 29 publications

(51 citation statements)

References 23 publications

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“…The left wing mirror on the other hand vibrates with lower amplitude, but is not strongly damped as in other species of bush-crickets (Montealegre-Z, 2012;Montealegre-Z and Postles, 2010;Sarria-S et al, 2014). Even though most of the acoustic energy seems to be radiated by the right stridulatory area, the left mirror exhibits resonant peaks of low amplitude between 8 and 20 kHz, and a stronger dominant peak at ca.…”

Section: Bioacoustics and Wing Mechanicsmentioning

confidence: 86%

“…vigorosa the active wing area of sound production is not limited to the vibration of the mirror, as in other bush-cricket species [e.g., Supersonus spp., other Copiphora spp, (Montealegre-Z and Postles, 2010;Sarria-S et al, 2014)]. The 3D reconstruction of the wing deflection at 32 kHz suggests a rather complex mode of vibration with maximum displacement centred in the mirror (Fig.…”

Section: Wing Resonancesmentioning

confidence: 97%

“…When wings engage in stridulation different properties seem to change: membrane tension, stiffness, etc., thus affecting the wing resonance. These variables have been proposed as determinant conditions for sound production in other species of bushcrickets and crickets (Bennet-Clark, 2003;Montealegre-Z and Postles, 2010). …”

Section: Bioacoustics and Wing Mechanicsmentioning

confidence: 99%

“…Typically, one wing bears a row of teeth, the file, and the other bears a scraper that is swept along this file to produce a series of stimuli (impacts) with the file teeth. The energy released by tooth impacts is transmitted to the surrounding cell membranes, usually the mirror and harp (Bethoux, 2012;Montealegre-Z and Postles, 2010). Many species of bushcrickets communicate using ultrasonic channels, with pure tone ultrasound signals prevailing in neotropical species (Montealegre-Z, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Many species of bushcrickets communicate using ultrasonic channels, with pure tone ultrasound signals prevailing in neotropical species (Montealegre-Z, 2009). Pure tone signals seem to be common in species of the genus Copiphora (Montealegre-Z and Postles, 2010;Morris, 1980;Morris et al, 1994), with most of the energy occurring in the ultrasonic range (Montealegre-Z, 2009). …”

Section: Introductionmentioning

confidence: 99%

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Wing mechanics, vibrational and acoustic communication in a new bush-cricket species of the genus Copiphora (Orthoptera: Tettigoniidae) from Colombia

Sarria-S

Buxton

Jonsson

et al. 2016

Zoologischer Anzeiger - A Journal of Comparative Zoology

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Male bush-crickets produce acoustic signals by wing stridulation to call females. Several species also alternate vibratory signals with acoustic calls for intraspecific communication, a way to reduce risk of detection by eavesdropping predators. Both modes of communication have been documented mostly in neotropical species, for example in the genus Copiphora. In this article, we studied vibratory and acoustic signals and the biophysics of wing resonance in C. vigorosa, a new species from the rainforest of Colombia. Different from other Copiphora species in which the acoustic signals have been properly documented as pure tones, C. vigorosa males produce a complex modulated broadband call peaking at ca. 30 kHz. Such a broadband spectrum results from several wing resonances activated simultaneously during stridulation. Since males of this species do rarely sing, we also report that substratum vibrations have been adopted in this species as a persistent communication channel. Wing resonances and substratum vibrations were measured using a μ-scanning Laser Doppler Vibrometry. We found that the stridulatory areas of both wings exhibit a relatively broad-frequency response and the combined vibration outputs fits with the calling song spectrum breadth. Under laboratory conditions the calling song duty cycle is very low and males spend more time tremulating than singing

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Section: Bioacoustics and Wing Mechanicsmentioning

confidence: 86%

Section: Wing Resonancesmentioning

confidence: 97%

Section: Bioacoustics and Wing Mechanicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Wing mechanics, vibrational and acoustic communication in a new bush-cricket species of the genus Copiphora (Orthoptera: Tettigoniidae) from Colombia

Sarria-S

Buxton

Jonsson

et al. 2016

Zoologischer Anzeiger - A Journal of Comparative Zoology

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Acoustic Signal Evolution: Biomechanics, Size, and Performance

Podos

Patek

2014

Animal Signaling and Function

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Biomechanics of hearing in katydids

Montealegre‐Z

Robert

2014

J Comp Physiol A

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Abstract:Animals have evolved a vast diversity of mechanisms to detect sounds. Auditory organs are used to detect intraspecific communicative signals and environmental sounds relevant to survival. To hear, terrestrial animals must convert the acoustic energy contained in the airborne sound pressure waves into neural signals. In mammals, spectral quality is assessed by the decomposition of incoming sound waves into elementary frequency components using a sophisticated cochlear system. Some neotropical insects like katydids (bushcrickets) have evolved biophysical mechanisms for auditory processing that are remarkably equivalent to those of mammals. Located on their front legs, katydid ears are small, yet are capable of performing several of the tasks usually associated with mammalian hearing. These tasks include air-to-liquid impedance conversion, signal amplification, and frequency analysis. Impedance conversion is achieved by a lever system, a mechanism functionally analogous to the mammalian middle ear ossicles, yet morphologically distinct. In katydids, the exact mechanisms supporting frequency analysis seem diverse, yet are seen to result in dispersive wave propagation phenomenologically similar to that of cochlear systems. Phylogenetically unrelated, katydids and tetrapods have evolved remarkably different structural solutions to common biophysical problems. Here, we discuss the biophysics of hearing in katydids and the variations observed across different species. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 Abstract: Animals have evolved a vast diversity of mechanisms to detect 12 sounds. Auditory organs are thus used to detect intraspecific communicative 13

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Resonant Sound Production inCopiphora gorgonensis(Tettigoniidae: Copiphorini), an Endemic Species fromParque Nacional Natural Gorgona, Colombia

Cited by 29 publications

References 23 publications

Wing mechanics, vibrational and acoustic communication in a new bush-cricket species of the genus Copiphora (Orthoptera: Tettigoniidae) from Colombia

Wing mechanics, vibrational and acoustic communication in a new bush-cricket species of the genus Copiphora (Orthoptera: Tettigoniidae) from Colombia

Acoustic Signal Evolution: Biomechanics, Size, and Performance

Biomechanics of hearing in katydids

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