FIGURE 46. Call A in Review of bioacoustical traits in the genus Physalaemus Fitzinger, 1826 (Anura: Leptodactylidae: Leiuperinae)

FIGURE 46. Call A of Physalaemus biligonigerus. Oscillograms (A, C, and D) and audiospectrograms (B, E, and F). A typical call (A–B). Variant calls with different envelopes and spectral features (C–F). Note the shorter duration of the initial FM segment (F). Horizontal scale bars have 0.1 s; vertical scale bars have 1 kHz. Filter bandwidth (Hz): 61.9 (B); 62.8 (E); 69.0 (F). Pulses of high frequency in the background in (F) correspond to calls of Pseudopaludicola sp.