Bioacoustics of Cyrtodactylus cattienensis

Bioacoustic notes. The vocal repertoire of the new species consists of two signal types : 1) Squeak: an acoustic signal of discomfort, produced by males, females and juvenile specimens when they are stressed (e. g., during capture); 2) Male signal ( Fig. 2 b). This acoustic signal can only be produced by males. It consists of a long series (6.55– 22.36 s) of call groups ( Fig. 2 c). The single call groups consist of 1–4 calls each. The intervals between call groups within a series vary from 0.85– 1.25 s. Intervals usually increase by the end of the series. At the beginning of a series the call loudness is -45dB re 0dB and distinctly increases towards the end of the series (-23.5 dB re 0dB). We observed two call frequency structure types ( Fig. 2 b): 1) single call and first call in a call group, respectively ( Fig. 2 c): these calls are frequency modulate and always consist of three harmonics (405, 1395, and 1825 kHz), the dominant average frequency is 900 kHz and 2) subsequent calls in a call group: these calls are also frequency modulate, but include two or three harmonics (1285, 2052, and 3180 kHz), the dominant average frequency is 568 kHz.