Table 4.
Comparisons of advertisement calls between three Megophrys species in Medog. P-value is resulted from Mann-Whitney U test on each character between species. Significant level at 0.05 (* P-value < 0.05). Abbreviation for species names: MCP, M. cf. pachyproctus; MY, Megophrys yeae sp. nov.; and MM, M. medogensis.
| Call character | MCP | MY | MM | P-value | ||
|---|---|---|---|---|---|---|
| Mean ± SD (range) | Mean ± SD (range) | Mean ± SD (range) | MH vs. MY | MH vs. MM | MY vs. MM | |
| Number of individuals | 6 | 3 | 3 | / | / | / |
| Total number of calls analyzed | 3.2 ± 2.6 (1–8) | 5.0 ± 2.6 (2–7) | 5.3 ± 3.5 (2–9) | / | / | / |
| Call repetition rate (calls/s) | 3.0 ± 0.7 (1.9–4.1) | 0.9 ± 0.2 (0.7–1.1) | 1.2 ± 0.9 (0.6–2.2) | 0.024* | 1 | 0.048* |
| Calls/call group | 68.9 ± 46.7 (10.3–109.3) | 10.8 ± 3.3 (7.1–13.3) | 4.3 ± 1.6 (2.8–6.0) | 0.229 | 0.1 | 0.057 |
| Call duration (ms) | 139 ± 39 (99–212) | 746 ± 221 (491–889) | 176 ± 61 (121–241) | 0.024* | 0.1 | 0.381 |
| Intercall interval (ms) | 218 ± 81 (146–370) | 580 ± 122 (493–720) | 205 ± 514 (153–254) | 0.024* | 0.1 | 0.905 |
| Pulses/call | 9.2 ± 0.6 (8.5–9.9) | 42.1 ± 2.0 (40.6–44.4) | 17.1 | 0.024* | 0.5 | 0.286 |
| Dominant frequency (kHz) | 4.7 ± 0.3 (4.4–5.2) | 3.2 ± 0.1 (3.2–3.3) | 2.5 ± 0.1 (2.4–2.6) | 0.024* | 0.1 | 0.024* |
| Temperature (°C) | 17–25 | 17–21 | 19–20 | / | / | / |