Vocal Behavior of the Elusive Purple Frog of India (Nasikabatrachus sahyadrensis), a Fossorial Species Endemic to the Western Ghats
Figure 2
Advertisement calls of a male Nasikabatrachus sahyadrensis.
(a) 30-s segment of continuous, spontaneous calling by a single male. (b) 5-s segment showing the three consecutive call groups underlined in (a). (c) 0.5-s segment showing the three calls of the call group underlined in (b). (d) 0.1 s segment showing the call underlined in (c). (e) Spectrogram of the call illustrated in (d); Inset: power spectrum averaged over the duration of the call depicted in (d). The entire 30-s segment depicted in this figure is included as an audio file in the Supporting Information for this article (Audio S1).