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Tan MK, Ingrisch S, Wahab RBINHA, Japir R, Chung AYC. Ultrasonic bioacoustics and stridulum morphology reveal cryptic species among Lipotactes big-eyed katydids (Orthoptera: Tettigoniidae: Lipotactinae) from Borneo. SYST BIODIVERS 2020. [DOI: 10.1080/14772000.2020.1769223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ming Kai Tan
- Muséum national d’Histoire naturelle, CNRS, SU, EPHE, UA, Institut de Systématique, Evolution et Biodiversité (ISYEB), 57 rue Cuvier, CP 50, Paris Cedex 05, 75231, France
| | - Sigfrid Ingrisch
- Zoological Research Museum Alexander Koenig, Adenauerallee 160, Bonn, D-53113, Germany
| | - Rodzay BIN Haji Abdul Wahab
- Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Jalan Universiti, BE1410, Brunei Darussalam
| | - Razy Japir
- Sabah Forestry Department, Forest Research Centre (Sepilok), P.O. Box 1407, Sandakan, 90715, Sabah
| | - Arthur Y. C. Chung
- Sabah Forestry Department, Forest Research Centre (Sepilok), P.O. Box 1407, Sandakan, 90715, Sabah
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2
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Woodrow C, Pulver C, Veitch D, Montealegre-Z F. Bioacoustic and biophysical analysis of a newly described highly transparent genus of predatory katydids from the Andean cloud forest (Orthoptera: Tettigoniidae: Meconematinae: Phlugidini). BIOACOUSTICS 2019. [DOI: 10.1080/09524622.2019.1694992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Charlie Woodrow
- School of Life Sciences, Joseph Banks Laboratories, University of Lincoln, Lincoln, UK
| | - Christian Pulver
- School of Life Sciences, Joseph Banks Laboratories, University of Lincoln, Lincoln, UK
| | - Daniel Veitch
- School of Life Sciences, Joseph Banks Laboratories, University of Lincoln, Lincoln, UK
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Bailey NW, Pascoal S, Montealegre-Z F. Testing the role of trait reversal in evolutionary diversification using song loss in wild crickets. Proc Natl Acad Sci U S A 2019; 116:8941-8949. [PMID: 30992379 PMCID: PMC6500131 DOI: 10.1073/pnas.1818998116] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The mechanisms underlying rapid macroevolution are controversial. One largely untested hypothesis that could inform this debate is that evolutionary reversals might release variation in vestigial traits, which then facilitates subsequent diversification. We evaluated this idea by testing key predictions about vestigial traits arising from sexual trait reversal in wild field crickets. In Hawaiian Teleogryllus oceanicus, the recent genetic loss of sound-producing and -amplifying structures on male wings eliminates their acoustic signals. Silence protects these "flatwing" males from an acoustically orienting parasitoid and appears to have evolved independently more than once. Here, we report that flatwing males show enhanced variation in vestigial resonator morphology under varied genetic backgrounds. Using laser Doppler vibrometry, we found that these vestigial sound-producing wing features resonate at highly variable acoustic frequencies well outside the normal range for this species. These results satisfy two important criteria for a mechanism driving rapid evolutionary diversification: Sexual signal loss was accompanied by a release of vestigial morphological variants, and these could facilitate the rapid evolution of novel signal values. Widespread secondary trait losses have been inferred from fossil and phylogenetic evidence across numerous taxa, and our results suggest that such reversals could play a role in shaping historical patterns of diversification.
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Affiliation(s)
- Nathan W Bailey
- School of Biology, University of St. Andrews, St. Andrews KY16 9TH, United Kingdom;
| | - Sonia Pascoal
- Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, United Kingdom
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Baker AA, Jonsson T, Aldridge S, Montealegre-Z F. Complex wing motion during stridulation in the katydid Nastonotus foreli (Orthoptera: Tettigoniidae: Pseudophyllinae). JOURNAL OF INSECT PHYSIOLOGY 2019; 114:100-108. [PMID: 30898560 DOI: 10.1016/j.jinsphys.2019.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 02/27/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
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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Affiliation(s)
- Andrew Alexander Baker
- University of Lincoln, School of Life Sciences, Joseph Banks Laboratories, United Kingdom
| | - Thorin Jonsson
- University of Lincoln, School of Life Sciences, Joseph Banks Laboratories, United Kingdom
| | - Sarah Aldridge
- University of Lincoln, School of Life Sciences, Joseph Banks Laboratories, United Kingdom
| | - Fernando Montealegre-Z
- University of Lincoln, School of Life Sciences, Joseph Banks Laboratories, United Kingdom.
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Montealegre-Z F, Ogden J, Jonsson T, Soulsbury CD. Morphological determinants of signal carrier frequency in katydids (Orthoptera): a comparative analysis using biophysical evidence of wing vibration. J Evol Biol 2017; 30:2068-2078. [PMID: 28921699 DOI: 10.1111/jeb.13179] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/10/2017] [Accepted: 09/12/2017] [Indexed: 11/29/2022]
Abstract
Male katydids produce mating calls by stridulation using specialized structures on the forewings. The right wing (RW) bears a scraper connected to a drum-like cell known as the mirror and a left wing (LW) that overlaps the RW and bears a serrated vein on the ventral side, the stridulatory file. Sound is generated with the scraper sweeping across the file, producing vibrations that are amplified by the mirror. Using this sound generator, katydids exploit a range of song carrier frequencies (CF) unsurpassed by any other insect group, with species singing as low as 600 Hz and others as high as 150 kHz. Sound generator size has been shown to scale negatively with CF, but such observations derive from studies based on few species, without phylogenetic control, and/or using only the RW mirror length. We carried out a phylogenetic comparative analysis involving 94 species of katydids to study the relationship between LW and RW components of the sound generator and the CF of the male's mating call, while taking into account body size and phylogenetic relationships. The results showed that CF negatively scaled with all morphological measures, but was most strongly related to components of the sound generation system (file, LW and RW mirrors). Interestingly, the LW mirror (reduced and nonfunctional) predicted CF more accurately than the RW mirror, and body size is not a reliable CF predictor. Mathematical models were verified on known species for predicting CF in species for which sound is unknown (e.g. fossils or museum specimens).
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Affiliation(s)
- F Montealegre-Z
- Joseph Banks Laboratories, School of Life Sciences, University of Lincoln, Lincoln, UK
| | - J Ogden
- Joseph Banks Laboratories, School of Life Sciences, University of Lincoln, Lincoln, UK
| | - T Jonsson
- Joseph Banks Laboratories, School of Life Sciences, University of Lincoln, Lincoln, UK
| | - C D Soulsbury
- Joseph Banks Laboratories, School of Life Sciences, University of Lincoln, Lincoln, UK
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Jonsson T, Chivers BD, Robson Brown K, Sarria-S FA, Walker M, Montealegre-Z F. Chamber music: an unusual Helmholtz resonator for song amplification in a Neotropical bush-cricket (Orthoptera, Tettigoniidae). ACTA ACUST UNITED AC 2017; 220:2900-2907. [PMID: 28596213 DOI: 10.1242/jeb.160234] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/29/2017] [Indexed: 11/20/2022]
Abstract
Animals use sound for communication, with high-amplitude signals being selected for attracting mates or deterring rivals. High amplitudes are attained by employing primary resonators in sound-producing structures to amplify the signal (e.g. avian syrinx). Some species actively exploit acoustic properties of natural structures to enhance signal transmission by using these as secondary resonators (e.g. tree-hole frogs). Male bush-crickets produce sound by tegminal stridulation and often use specialised wing areas as primary resonators. Interestingly, Acanthacara acuta, a Neotropical bush-cricket, exhibits an unusual pronotal inflation, forming a chamber covering the wings. It has been suggested that such pronotal chambers enhance amplitude and tuning of the signal by constituting a (secondary) Helmholtz resonator. If true, the intact system - when stimulated sympathetically with broadband sound - should show clear resonance around the song carrier frequency which should be largely independent of pronotum material, and change when the system is destroyed. Using laser Doppler vibrometry on living and preserved specimens, microcomputed tomography, 3D-printed models and finite element modelling, we show that the pronotal chamber not only functions as a Helmholtz resonator owing to its intact morphology but also resonates at frequencies of the calling song on itself, making song production a three-resonator system.
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Affiliation(s)
- Thorin Jonsson
- School of Life Sciences, Joseph Banks Laboratories, Green Lane, Lincoln LN6 7DL, UK
| | - Benedict D Chivers
- School of Life Sciences, Joseph Banks Laboratories, Green Lane, Lincoln LN6 7DL, UK
| | - Kate Robson Brown
- Imaging Laboratory, Department of Anthropology and Archaeology, University of Bristol, 43 Woodland Road, Bristol BS8 1UG, UK
| | - Fabio A Sarria-S
- School of Life Sciences, Joseph Banks Laboratories, Green Lane, Lincoln LN6 7DL, UK
| | - Matthew Walker
- School of Life Sciences, Joseph Banks Laboratories, Green Lane, Lincoln LN6 7DL, UK
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Desutter-Grandcolas L, Jacquelin L, Hugel S, Boistel R, Garrouste R, Henrotay M, Warren BH, Chintauan-Marquier IC, Nel P, Grandcolas P, Nel A. 3-D imaging reveals four extraordinary cases of convergent evolution of acoustic communication in crickets and allies (Insecta). Sci Rep 2017; 7:7099. [PMID: 28769067 PMCID: PMC5541040 DOI: 10.1038/s41598-017-06840-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 06/20/2017] [Indexed: 01/06/2023] Open
Abstract
When the same complex trait is exhibited by closely related species, a single evolutionary origin is frequently invoked. The complex stridulatory apparatus present in the forewings of extant crickets, mole crickets, katydids, and prophalangopsids, is currently interpreted as sharing a single common origin due to their similarity and unique function. An alternative hypothesis of convergent evolution in these ensiferan groups has challenged this common view, but remained controversial because of competing interpretations of wing venation. Here we propose another hypothesis for the widely and long debated homology of ensiferan stridulatory apparatus, performing the first 3D reconstruction of hidden structures at the wing bases. This approach allowed defining the homology of each vein from its very origin rather than after its more distal characteristics, which may be subjected to environmental pressure of selection. The stridulatory apparatus involves different veins in these four singing clades. In light of the most recent phylogenetic evidence, this apparatus developed four times in Ensifera, illustrating extraordinary convergent evolutions between closely related clades, by far exceeding the number of evolutionary steps ever proposed for calling ability in this group.
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Affiliation(s)
- Laure Desutter-Grandcolas
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France
| | - Lauriane Jacquelin
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France
| | - Sylvain Hugel
- INCI, UPR 3212 CNRS, Université de Strasbourg, 5 rue Blaise Pascal, 67084, Strasbourg, France
| | - Renaud Boistel
- Université de Poitiers - UFR SFA, iPHEP UMR CNRS 7262, Bât B35 - TSA 51106, 6 rue Michel Brunet, F-86073, Poitiers Cedex 9, France
| | - Romain Garrouste
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France
| | - Michel Henrotay
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France
| | - Ben H Warren
- Institute of Systematic Botany, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland
| | - Ioana C Chintauan-Marquier
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France
| | - Patricia Nel
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France
| | - Philippe Grandcolas
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France
| | - André Nel
- Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France.
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