Table 1.
Summary of tarsier pairs and duet phrases analyzed in this study
| Pair ID | Sex | Number of recording days | Number of phrases | Sex | Number of recording days | Number of phrases | Recorder type |
|---|---|---|---|---|---|---|---|
| A | F | 1 | 4 | M | 1 | 4 | Autonomous (SWIFT) |
| B | F | 2 | 10 | M | 2 | 10 | Autonomous (SWIFT) |
| C | F | 2 | 12 | M | 2 | 12 | Autonomous (SWIFT) |
| D | F | 1 | 4 | M | 1 | 4 | Autonomous (SWIFT) |
| E | F | 3 | 13 | M | 2 | 9 | Autonomous (ARBIMON) |
| F | F | 2 | 12 | M | 2 | 11 | Autonomous (ARBIMON) |
| G | F | 1 | 10 | M | 1 | 3 | Autonomous (ARBIMON) |
| H | F | 1 | 4 | M | 1 | 4 | Focal |
| I | F | 1 | 1 | M | 1 | 1 | Focal |
| J | F | 1 | 3 | M | 1 | 3 | Focal |
| K | F | 1 | 1 | M | 1 | 1 | Focal |
| L | F | 1 | 3 | M | 1 | 3 | Focal |
| M | F | 1 | 3 | M | 1 | 3 | Focal |
| N | F | 1 | 3 | M | 0 | 0 | Focal |
| O | F | 1 | 9 | M | 1 | 9 | Autonomous (SWIFT) |
| Total female phrases | 92 | Total male phrases | 77 |
We analyzed duet phrases from 14 males and 15 females. In some cases using the autonomous recorders, we recorded high quality duets over multiple mornings, and the number of recording days is equivalent to number of duets included per pair.