Fig. 3. Spectrograms and oscillograms for Dendropsophus vraemi. A–B in The distribution and calls of Vraem' Treefrog, Dendropsophus vraemi (Caminer, Milá, Jansen, Fouquet, Venegas, Chávez, Lougheed, and Ron 2017), with comments on its conservation status

Fig. 3. Spectrograms and oscillograms for Dendropsophus vraemi. A–B: variations of the advertisement call; C: an aggressive call. A, B and C are call variations from a single male individual (CORBIDI 17894) recorded in the middle Apurimac basin.