AI Article Synopsis
- This study explores vocal individuality in male black crested gibbon songs for the first time, analyzing recordings from two locations in Yunnan, China.
- Researchers examined 127 song phrases from 38 bouts of eight male gibbons, using statistical methods to determine acoustic differences among them.
- Results indicate that gibbons have a high degree of vocal individuality, particularly when compared to their immediate neighbors, suggesting they may modify their calls to stand out.
Article Abstract
This is the first study of vocal individuality in male songs of black crested gibbons. The sound recordings were carried out at two field sites, Pinghe, Ailao Mountains, and Dazhaizi, Wuliang Mountains, both located in Yunnan province, China. A total of 127 coda phrases of 38 male songs bouts of eight individual male gibbons were analyzed. Stepwise discriminant function analysis was used to examine the acoustic individuality of the males. We found that individuality among neighbors was very pronounced. Moreover, individuality within a site (i.e. among neighbors) is higher than among individuals between sites. Our finding suggests that black crested gibbons may actively increase their degree of vocal individuality against that of their immediate neighbors by vocal adjustment.
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| http://dx.doi.org/10.1002/ajp.20917 | DOI Listing |
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