Fig. 1 in The highly variable release call of the missing Northern Darwin's Frog, Rhinoderma rufum

Fig. 1. Spectrograms and oscillograms of multi-note release calls emitted by males of Rhinoderma rufum. Two representative calls are shown, one having mainly harmonic structure (A, individual 1 in Table 1) and another having mainly chaotic structure (B, individual 2 in Table 1). Sample rate: 44.1 kHz, frequency bandwidth: 20 Hz. The oscillograms and spectrograms were obtained using the package Seewave (Sueur et al. 2018).