Use of a self-made sound baffle by a tree cricket

Prozesky-Schulze, L.; Prozesky, O. P. M.; Anderson, F.; Merwe, G.J.J. van der

doi:10.1038/255142a0

Cited by 44 publications

(31 citation statements)

References 7 publications

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“…this can be increased by about 3 dB, equivalent to double the power output, by using the surface of broad leaves as baffles (36). The African tree cricket, Oecanthus burmeisteri, calls from pear-shapes holes that it chews in leaves, using the leaf as a baffle that effectively extends the free edge of its tegmina by several centimeters and thus reduces destructive interference from sound waves emanating from alternate surfaces of the tegmina (35,90). This self-made baffle increases the sound amplitude 2.5-3.5 times, which is similar to a ninefold increase in acoustical power (36).…”

Section: Directional Preferencesmentioning

confidence: 98%

Mate Choice in Tree Crickets and Their Kin

Brown

1999

Annu. Rev. Entomol.

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Mate choice theory has become a major field of research in behavioral ecology. Tree crickets provide excellent opportunities for studying the diversity and variability of mate choice. The evidence for female mate choice in tree crickets is reviewed, and broad comparisons with other orthopteran groups are made. The evidence shows that female choice may occur during several different stages of mating and may target several different criteria. Song preferences are perhaps dominated by stabilizing preferences for the cues of species recognition, but there is a growing body of evidence for directional preferences based on sensory biases or mate quality. Mate rejection during courtship and forms of postcopulatory choice may favor males, based both on phenotypic quality and on the amount of nutritious courtship gifts they provide, and may differ with the value of mating incentives. Understanding the balance and trade-offs between different forms of mate choice may help in understanding their evolutionary causes.

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Section: Directional Preferencesmentioning

confidence: 98%

Mate Choice in Tree Crickets and Their Kin

Brown

1999

Annu. Rev. Entomol.

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“…220 million years ago; Béthoux, 2012), has been subject to tremendous evolution, resulting in a wide array of wing morphologies, body sizes, and behaviour. In some cases forewingbased sound radiation is enhanced by particular shapes of the pronotum (Morris and Mason, 1995), holes in plant leaves acting as acoustic baffles (Prozesky-Schulze et al, 1975;Forrest, 1991), particular tegminal inflations (Hemp, 2001;Montealegre-Z and Mason, 2005), or burrows purposely shaped for enhancing sound radiation (Bailey et al, 2001;Forrest, 1991).…”

Section: Introductionmentioning

confidence: 99%

Functional morphology of tegmina-based stridulation in the relict speciesCyphoderris monstrosa(Orthoptera: Ensifera: Prophalangopsidae)

Chivers

Béthoux²,

Sarria-S

et al. 2017

Journal of Experimental Biology

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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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“…In bladder grasshoppers, however, calling and non-calling strategies appear to be developmentally determined, with two morphologically distinct adult male types pursuing these alternative strategies ). An interesting alternative strategy in tree cricket ( Oecanthus ) males is baffl ing (Prozesky- Schulze et al 1975 ). Males sometimes cut a hole in a leaf and sing from it, using it as an acoustic amplifi er and increasing call intensity.…”

Section: Alternative Strategiesmentioning

confidence: 99%

Insect Hearing

2016

Springer Handbook of Auditory Research

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Use of a self-made sound baffle by a tree cricket

Cited by 44 publications

References 7 publications

Mate Choice in Tree Crickets and Their Kin

Mate Choice in Tree Crickets and Their Kin

Functional morphology of tegmina-based stridulation in the relict speciesCyphoderris monstrosa(Orthoptera: Ensifera: Prophalangopsidae)

Insect Hearing

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