Basic types of anuran vocalizations based on their temporal structure, shown as schematic waveforms, modified after Littlejohn (2001): (a) non-pulsed call, (b) pulsed call, (c) call with uniform pulsed notes, (d) complex call containing different note types, and (e) two complex calls in a call series. Black arrows mark inter-note intervals and red arrow marks inter-call interval.

 
 
  Part of: Emmrich M, Vences M, Ernst R, Köhler J, Barej MF, Glaw F, Jansen M, Rödel M-O (2020) A guild classification system proposed for anuran advertisement calls. Zoosystematics and Evolution 96(2): 515-525. https://doi.org/10.3897/zse.96.38770