The complex stridulatory behavior of the cricket Eneoptera guyanensis Chopard (Orthoptera: Grylloidea: Eneopterinae)

Robillard, Tony; Desutter‐Grandcolas, Laure

doi:10.1016/j.jinsphys.2011.02.005

Cited by 15 publications

(6 citation statements)

References 22 publications

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“…Crickets sensu stricto moreover present a wide acoustic diversity, both in terms of structures and in terms of functional properties. The few species used to generate the basic model of sound production in crickets, that is, Acheta , Gryllus , or Teleogryllus grylline species (Nocke, ; Elliott and Koch, ; Montealegre‐Z et al., ; but see Bennet‐Clark and Bailey, ), all belong to a small apical group nested within our clade G. Recent bioacoustic analyses of more distantly related Eneopterinae species questioned this basic cricket model: Eneopterinae emit high‐frequency calls using the second or third harmonic as a dominant frequency (Robillard et al., ), or produce several kinds of syllables using complex stridulatory behaviours and structures (Robillard and Desutter‐Grandcolas, ). Yet, Eneopterinae are quite close to Gryllinae, both belonging to clade G, and the two groups taken together do not reflect the high diversity of sound‐production structures in crickets.…”

Section: Discussionmentioning

confidence: 99%

Laying the foundations of evolutionary and systematic studies in crickets (Insecta, Orthoptera): a multilocus phylogenetic analysis

et al. 2015

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Orthoptera have been used for decades for numerous evolutionary questions but several of its constituent groups, notably crickets, still suffer from a lack of a robust phylogenetic hypothesis. We propose the first phylogenetic hypothesis for the evolution of crickets sensu lato, based on analysis of 205 species, representing 88% of the subfamilies and 71% tribes currently listed in the database Orthoptera Species File (OSF). We reconstructed parsimony, maximum likelihood and Bayesian phylogenies using fragments of 18S, 28SA, 28SD, H3, 12S, 16S, and cytb (~3600 bp). Our results support the monophyly of the cricket clade, and its subdivision into two clades: mole crickets and ant‐loving crickets on the one hand, and all the other crickets on the other (i.e. crickets sensu stricto). Crickets sensu stricto form seven monophyletic clades, which support part of the OSF families, “subfamily groups”, or subfamilies: the mole crickets (OSF Gryllotalpidae), the scaly crickets (OSF Mogoplistidae), and the true crickets (OSF Gryllidae) are recovered as monophyletic. Among the 22 sampled subfamilies, only six are monophyletic: Gryllotalpinae, Trigonidiinae, Pteroplistinae, Euscyrtinae, Oecanthinae, and Phaloriinae. Most of the 37 tribes sampled are para‐ or polyphyletic. We propose the best‐supported clades as backbones for future definitions of familial groups, validating some taxonomic hypotheses proposed in the past. These clades fit variously with the morphological characters used today to identify crickets. Our study emphasizes the utility of a classificatory system that accommodates diagnostic characters and monophyletic units of evolution. Moreover, the phylogenetic hypotheses proposed by the present study open new perspectives for further evolutionary research, especially on acoustic communication and biogeography.

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Section: Discussionmentioning

confidence: 99%

Laying the foundations of evolutionary and systematic studies in crickets (Insecta, Orthoptera): a multilocus phylogenetic analysis

et al. 2015

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“…Many cricket species communicate using low pure-tone f c (2-8kHz) (Otte, 1992;Michelsen, 1998 has been documented in the subfamily Eneopterinae (Desutter- Grandcolas, 1997;Desutter-Grandcolas, 1998;Robillard and Desutter-Grandcolas, 2004b;Robillard and Desutter-Grandcolas, 2011a). In this paper, we investigated the morphological and mechanical specialisations allowing this group of crickets to broadcast high-frequency songs.…”

Section: Discussionmentioning

confidence: 99%

Mechanisms of high frequency song generation in brachypterous crickets and the role of ghost frequencies

Robillard

Montealegre‐Z

Desutter‐Grandcolas

et al. 2013

Journal of Experimental Biology

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SUMMARYSound production in crickets relies on stridulation, the well-understood rubbing together of a pair of specialised wings. As the file of one wing slides over the scraper of the other, a series of rhythmic impacts causes harmonic oscillations, usually resulting in the radiation of pure tones delivered at low frequencies (2-8kHz). In the short-winged crickets of the Lebinthini tribe, acoustic communication relies on signals with remarkably high frequencies (>8kHz) and rich harmonic content. Using several species of the subfamily Eneopterinae, we characterised the morphological and mechanical specialisations supporting the production of high frequencies, and demonstrated that higher harmonics are exploited as dominant frequencies. These specialisations affect the structure of the stridulatory file, the motor control of stridulation and the resonance of the sound radiator. We placed these specialisations in a phylogenetic framework and show that they serve to exploit high-frequency vibrational modes pre-existing in the phylogenetic ancestor. In Eneopterinae, the lower frequency components are harmonically related to the dominant peak, suggesting they are relicts of ancestral carrier frequencies. Yet, such ghost frequencies still occur in the wingsʼ free resonances, highlighting the fundamental mechanical constraints of sound radiation. These results support the hypothesis that such highfrequency songs evolved stepwise, by a form of punctuated evolution that could be related to functional constraints, rather than by only the progressive increase of the ancestral fundamental frequency. Supplementary material available online at

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“…The subfamily Eneopterinae comprises a diverse assemblage of tropical crickets that live in a wide array of habitats (e.g. leaf litter and tree canopy in forests, low bushes in open areas, trees at forest edges, coastal areas, savannas), have diverse potential vagility (one genus is apterous, the others have either short or long wings), and that are known for their diverse calling songs (Robillard & Desutter‐Grandcolas, 2004b, 2011a,b). They have a world‐wide distribution, with most of the diversity located in Pacific islands.…”

Section: Methodsmentioning

confidence: 99%

Older than New Caledonia emergence? A molecular phylogenetic study of the eneopterine crickets (Orthoptera: Grylloidea)

Nattier

Robillard

Desutter‐Grandcolas

et al. 2011

Journal of Biogeography

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Aim A New Caledonian insect group was studied in a world‐wide phylogenetic context to test: (1) whether local or regional island clades are older than 37 Ma, the postulated re‐emergence time of New Caledonia; (2) whether these clades show evidence for local radiations or multiple colonizations; and (3) whether there is evidence for relict taxa with long branches in phylogenetic trees that relate New Caledonian species to geographically distant taxa. Location New Caledonia, south‐west Pacific. Methods We sampled 43 cricket species representing all tribes of the subfamily Eneopterinae and 15 of the 17 described genera, focusing on taxa distributed in the South Pacific and around New Caledonia. One nuclear and three mitochondrial genes were analysed using Bayesian and parsimony methods. Phylogenetic divergence times were estimated using a relaxed clock method and several calibration criteria. Results The analyses indicate that, under the most conservative dating scenario, New Caledonian eneopterines are 5–16 million years old. The largest group in the Pacific region dates to 18–29 Ma. New Caledonia has been colonized in two phases: the first around 10.6 Ma, with the subsequent diversification of the endemic genus Agnotecous, and the second with more recent events around 1–4 Ma. The distribution of the sister group of Agnotecous and the lack of phylogenetic long branches in the genus refute an assumption of major extinction events in this clade and the hypothesis of local relicts. Main conclusions Our phylogenetic studies invalidate a simple scenario of local persistence of this group in New Caledonia since 80 Ma, either by survival on the New Caledonian island since its rift from Australia, or, if one accepts the submergence of New Caledonia, by local island‐hopping among other subaerial islands, now drowned, in the region during periods of New Caledonian submergence.

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The complex stridulatory behavior of the cricket Eneoptera guyanensis Chopard (Orthoptera: Grylloidea: Eneopterinae)

Cited by 15 publications

References 22 publications

Laying the foundations of evolutionary and systematic studies in crickets (Insecta, Orthoptera): a multilocus phylogenetic analysis

Laying the foundations of evolutionary and systematic studies in crickets (Insecta, Orthoptera): a multilocus phylogenetic analysis

Mechanisms of high frequency song generation in brachypterous crickets and the role of ghost frequencies

Older than New Caledonia emergence? A molecular phylogenetic study of the eneopterine crickets (Orthoptera: Grylloidea)

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