The stationary call of D. cervina is acoustically identical to the one produced while flying and consists of a long, uninterrupted series of syllables produced every 0.9–2.0 s; mean syllable duration is 0.26 s (SD=0.0342, n=25); the peak frequency of the call is 5.9–6.4 kHz, with a strong harmonic at 11.7–12.3 kHz (Figs. 54D–F). The call is very loud and audible from a distance of at least 100 m. [1]
O. lesnei, along with Debrona cervina Walker, 1870, are unique among known katydids in being able to stridulate in flight. This interesting behavior, its mechanism, and potential adaptive advantage will be discussed in an upcoming publication (Naskrecki, in prep.). [1]
| Ontology Term | Värde | Reference | Länk för redigering |
|---|---|---|---|
|
Stridulation in flight https://vocab.audioblast.org/StridulationInFlight |
Present |
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| Ontology Term | Värde | Reference | Länk för redigering |
|---|---|---|---|
|
Song Structure https://vocab.audioblast.org/SongStructure |
Syllables Male, |
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|
Syllable Period https://vocab.audioblast.org/SyllablePeriod |
0.9-2.0 Male, |
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|
Peak Frequency (kHz) https://vocab.audioblast.org/PeakFrequency |
5.9-6.4 Male, |
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|
First Harmonic Frequency (kHz) https://vocab.audioblast.org/FirstHarmonicFrequency |
11.7-12.3 Male, |
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|
Sound Propagation Distance (m) https://vocab.audioblast.org/SoundPropagationDistance |
>100 Male, |
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| Ontology Term | Värde | Reference | Länk för redigering |
|---|---|---|---|
| Syllable Duration (song is syllable sequence) |
0.26 Male, |
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