BioAcoustica is a free, open repository of wildlife sound recordings from the Natural History Museum, London.
Taxonomic index of the BioAcoustica collection
Acoustic and biological measurements in the BioAcoustica collection
Recording annotations from ann-o-mate
The specimens that recordings are of, from the collections
Where the specimens that recordings are of were collected, not where the sound was recorded
The advertisement call for A. imasmari (Figs. 5 & 6) is a short ‘peep’ repeated 2.1–2.6 times per second for several minutes. Each note is short (mean of 0.17 s), with the dominant frequency from 4.3–4.5 kHz. This single-note advertisement call is given most frequently in the afternoon and evening as males chorus in small groups. We also observed a second call type in A. imasmari consisting of three to four notes, occasionally two notes in quick succession (separated by a mean of 13 ms, of silence), repeated once every 2-30 seconds. The latter call appears to function as an aggressive or territorial call and is most frequently heard in the early morning and early evening (Schlüter 1980).