Interrupted frogs widen note spacing but group chorusing raises interference sharply

Evidence

Anuran choruses are very complex soundtopes created by contemporary calls of several males at the same time. In a neotropical frog, Hyla microcephala, Schwartz (1993) has conducted experiments of playback by using an interactive computerbased system able to simulate the call interruptions of the males. A male when interrupted by the call of another male increases the spacing between his notes. Using synthetic calls with a silent gap, this author has found a vocal reaction of males to sound intensity. The acoustic overlap between males was less than 10 %. When males were calling in groups, the amount of sound interference between the males was highly variable, ranging from 34 to 92 %. — Almo Farina, Soundscape Ecology, 479

Categorization

• XREF: connects to: Chorus males actively slot calls into silent gaps to reduce overlap — Almo Farina, Soundscape Ecology: Principles,…, 1685

Broader Connections

• Chorus males actively slot calls into silent gaps to reduce overlap #contradicts (0.90) — Almo Farina, Soundscape Ecology, 1685