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
| lab recording, 9/9/1986, 21°C (tape no. U32/83r) | 0:38 |
| lab recording, 25°C, 30/7/2015 (Zoom-H4 digital recorder, sample rate 96 kHz) | 0:30 |
| 401:6 Leptophyes laticauda (429) | 2:45 · W. J. Reynolds |
| 401:7 Leptophyes laticauda (429b) | 1:23 · W. J. Reynolds |
| 401:8 Leptophyes laticauda (429c) | 1:29 · W. J. Reynolds |
| 401:9 Leptophyes laticauda (430) | 3:05 · W. J. Reynolds |
| 401:10 Leptophyes laticauda (430b) | 2:02 · W. J. Reynolds |
| 401:11 Leptophyes laticauda (430c) | 1:29 · W. J. Reynolds |
| Leptophyes laticauda |
Similar to those of the other Leptophyes species studied, but the syllable structure is often more complex, so that there are sometimes up to three or more groups of tooth-impacts separated by intervals of 15-35 ms; in such cases each group is composed of 3-10 tooth-impacts and lasts about 3-10 ms. In the male studied the syllables (whether simple or of the more complex kind described above) were repeated at intervals of 1-2 s, although Scmidt (1989) gives the much higher repetition rate of 8/s.
The male calling song of L. laticauda is more variable and the song units (see below) are produced in a much faster rhythm (Heller 1988; Ragge and Reynolds 1998) than in the two previously described species. Each song unit consisted sometimes of one short, compact syllable only. Sometimes, this part was followed by an isolated impulse (‘after-click’; see e.g., fig. 23G in Heller 1988). In the most often observed combina- tion (echeme), one loud syllable (with or without after-click) was combined with a soft second syllable of variable internal structure (see male sound in Fig. 2E; see also Heller 1988; Fontana et al. 2002). Occasionally, several such soft syllables followed each other in short intervals (see description and figures in Roesti and Keist 2009). The females re- sponded nearly exclusively in a fixed interval after the first and loudest syllable (Fig. 1). The impulses were produced during a closing movement, but in the movement track it can be observed that the female reacted a few ms earlier with a small tegmen or body movement (Fig. 2E). The latency time is slightly longer than in L. punctatissima and similarly, it depended on temperature (f(x)=-1.8556x+93.63; r2=0.502).