The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
권호 표지
DOI QR코드

DOI QR Code

Identification of frequency determining sound generating organ of cicadas with the Helmholtz resonator structure

헬름홀쯔 공명기 구조 매미 소리의 주파수 결정 발음기관 규명

  • Received : 2018.06.08
  • Accepted : 2018.09.17
  • Published : 2018.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of the study is to identify a sound generating organ that has a major influence on the central frequency of the cicadas with the Helmholtz resonator structure for the first time. The sound of cicadas Cryptotympana atrata and Hyalessa fuscata were recorded and analyzed, then the motion of the tymbals was analyzed with a high-speed camera to compare the relationship between the frequency of sound and the motion of the tymbals. As a result, there was little difference in the frequency distribution of calling song and scream for two species. The tymbals of C. atrata oscillated in three vibration modes, while those of H. fuscata oscillated in one mode. There was no difference in the frequency of both tymbals of both cicadas, and three vibration modes of C. atrata generated sound with different frequency bands. The frequency band of tymbals and the central frequency band of calling song were very similar. In conclusion, it is presumed that the frequency of the cicadas with the Helmholtz resonator structure was determined by mode frequency of the tymbals than resonance condition of the abdomen.

이 연구는 헬름홀쯔 공명기 구조를 갖는 매미 소리의 중심주파수에 주요 영향을 주는 발음기관이 무엇인지를 최초로 초고속영상분석을 통해 규명하는 데 목적이 있다. 말매미와 참매미를 대상으로 소리를 녹음 후 분석하였고, 초고속카메라로 촬영한 진동막의 움직임을 분석하여 소리의 주파수와 진동막 운동 사이의 관계를 비교하였다. 연구결과, 말매미와 참매미 모두 유인음과 비명음의 주파수분포에는 차이가 거의 없었으며, 말매미의 진동막은 3개, 참매미의 진동막은 1개 모드로 진동하였다. 두 매미 모두 양쪽 진동막의 진동수에는 차이가 나타나지 않았으며, 말매미의 진동막의 3개 진동 모드는 서로 다른 진동수 대역의 소리가 발생하였다. 두 매미 모두 진동막의 진동수 대역과 유인음의 중심주파수 대역이 매우 유사하였다. 결론적으로, 헬름홀쯔 공명기 구조를 갖는 매미 소리의 주파수는 복부의 공명조건보다는 진동막의 모드별 진동수에 의해 결정되는 것으로 추정된다.

Keywords

References

  1. Y. J. Lee, "Revised synonymic list of cicadidae (Insecta: Hemiptera) from the Korean peninsula, with the description of a new species and some taxonomic remarks," Proc. the Biological Society of Washington. 121, 445-467 (2008). https://doi.org/10.2988/08-09.1
  2. C. Luo, C. Wei, and C. Nansen, "How do "mute" cicadas produce their calling songs?" PLoS ONE. 10, e0118554 (2015). https://doi.org/10.1371/journal.pone.0118554
  3. Y. J. Lee, "On the acoustic signals of cicadas (hemiptera, cicadidae)" (in Korean), Lucanus. 4, 5-8 (2003).
  4. C. Luo and C. Wei, "Stridulatory sound-production and its function in females of the cicada Subpsaltria yangi," PLoS ONE. 10, e0118667 (2015). https://doi.org/10.1371/journal.pone.0118667
  5. K. S. Yoon, S. J. Seo, and J. G. Seo, "Asymmetry actions of tymbals & resonance condition in air sac of the cicada Cryptotympana atrata" (in Korean), J. Acoust. Soc. Kr. 26, 1-7 (2007).
  6. H. C. Bennet-Clark, "Resonators in insect sound production: How insects produce loud pure-tone songs," J. Experimental Biology. 202, 3347-3357 (1999).
  7. L. E. Kinsler, A. R. Frey, A. B. Coppens, and J. V. Sanders, Fundamentals of Acoustics 4th (John Wiley & Sons, New York, 2000), Chap. 10.
  8. H. C. Bennet-Clark and D. Young, "Sound radiation by the bladder cicada Cystosoma saundersii," J. Experimental Biology. 201, 701-715 (1998).
  9. D. Young, "Do cicadas radiate sound through their ear-drums?," J. experimental Biology. 151, 41-56 (1990).
  10. K. S. Yoon, S. J. Seo, J. G. Seo, K. J. Park, "Resonance condition of the cicada Oncotympana fuscata's abdomen," J. Acoust. Soc. Kr. Suppl.2(s) 30, 223-228 (2011). https://doi.org/10.7776/ASK.2011.30.4.223
  11. R. M. Hennig, T. Weber, F. Huber, H.-U. Kleidienst, T. E. Moore, and A. V. Popov, "Auditory threshold change in singing cicadas," J. experimental Biology. 187, 45-55 (1994).
  12. D. Young and H. C. Bennet-Clark, "The role of the tymbal in cicada sound production," J. experimental Biology, 198, 1001-1019 (1995).
  13. K. K. Kim, S. J. Kim, T. W. Kim, H. L. Seo, K. S. Seong, and K. S. Yoon, Sounds of the cicadas in Korea (in Korean) (Ilgongyuksa, Goyang, 2013), pp. 14.
  14. S. Puissant and Y. J. Lee, "Description of a new species of the genus Hyalessa China (Hemiptera: Cicadidae: Sonatini) from Yunnan, China, with a key to the species of Hyalessa and a calling song analysis for two Hyalessa species," Zootaxa. 4114, 434-446 (2016). https://doi.org/10.11646/zootaxa.4114.4.4
  15. L. E. Kinsler, A. R. Frey, A. B. Coppens, J. V. Sanders, Fundamentals of Acoustics 4th (John Wiley & Sons, New York, 2000), Chap. 4.