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acta ethologica

, Volume 15, Issue 1, pp 33–38 | Cite as

Acoustic adaptations to anthropogenic noise in the cicada Cryptotympana takasagona Kato (Hemiptera: Cicadidae)

  • Bao-Sen Shieh
  • Shih-Hsiung Liang
  • Chao-Chieh Chen
  • Hsiang-Hao Loa
  • Chen-Yu Liao
Original Paper

Abstract

Anthropogenic noise produced by human activities affects acoustic communication in animals living in urban habitats. We recorded the calling songs of the cicada Cryptotympana takasagona in the Kaohsiung metropolitan areas of southern Taiwan to investigate possible acoustic adaptations to anthropogenic noise. C. takasagona did not call more in noise gaps. Acoustic features (peak frequency, quartile 25%, quartile 50%, and quartile 75%) of calling songs significantly increased with ambient noise levels. C. takasagona shifted the energy distribution of calling songs to higher frequencies in the presence of higher noise levels. We suggest that the acoustic adaptation by which song frequencies increase with levels of anthropogenic noise in C. takasagona may result from a size-dependent calling strategy in which small-sized males call more in noise conditions or large-sized males adjust their song frequency by changing their abdominal cavities.

Keywords

Acoustic adaptations Communication Cicada Cryptotympana takasagona Anthropogenic noise 

Notes

Acknowledgments

This work was funded by the Taiwan National Science Council through a research grant awarded to Bao-Sen Shieh (NSC98-2313-B-037-MY3). We are very grateful to the reviewers for their valuable comments on the manuscript.

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Copyright information

© Springer-Verlag and ISPA 2011

Authors and Affiliations

  • Bao-Sen Shieh
    • 1
  • Shih-Hsiung Liang
    • 2
  • Chao-Chieh Chen
    • 1
  • Hsiang-Hao Loa
    • 1
  • Chen-Yu Liao
    • 1
  1. 1.Department of Biomedical Science and Environmental BiologyKaohsiung Medical UniversityKaohsiungTaiwan
  2. 2.Department of BiotechnologyNational Kaohsiung Normal UniversityKaohsiungTaiwan

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