Min WU, Yuan LV, Zhi-Qiang ZHENG, Gui-Xia LIN, Yi-Chun WANG, Song-Hua WANG, Dong-Feng LI. 2013. Effects of syringeal denervation on the vocalization in red-billed Leiothrix (Leiothrix lutea). Zoological Research, 34(6): 556-563. DOI: 10.11813/j.issn.0254-5853.2013.6.0556
Citation: Min WU, Yuan LV, Zhi-Qiang ZHENG, Gui-Xia LIN, Yi-Chun WANG, Song-Hua WANG, Dong-Feng LI. 2013. Effects of syringeal denervation on the vocalization in red-billed Leiothrix (Leiothrix lutea). Zoological Research, 34(6): 556-563. DOI: 10.11813/j.issn.0254-5853.2013.6.0556

Effects of syringeal denervation on the vocalization in red-billed Leiothrix (Leiothrix lutea)

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  • Received Date: July 22, 2013
  • Revised Date: September 30, 2013
  • In this study, the unilateral and bilateral syrinx nerve (NXIIts) were resected in the red-billed Leiothrix (Leiothrix lutea) to assess the roles of NXIIts in vocalization. Wavesurfer and Sound Analysis Pro were used to analyze pre- and postsurgical acoustic changes. After resecting of unilateral NXIIts, red-billed Leiothrix produced the common calls with lengthened syllable interval, shortened duration and a declined FM index. The effects of left NXIIts resction on temporal and spectral characteristics of syllables were more significant than that of right NXIIts. These results indicated that the neural control of NXIIts was unilateral and left-side dominated. Moreover, the left NXIIts could produce high frequency components and harmonic waves. After resecting of bilateral NXIIts, the calls were characterized by monotone, reduced loudness and increased syllable pulse numbers.
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