Table 2.
Individual vocal cue classification
| Group | #a | Random (%)b | Whole call CV-values (%) | Noisy segment CV-values (%) | Harmonic segment CV-values (%) |
|---|---|---|---|---|---|
| 1B | 8 | 12.5 | 48.1*** | 45.0*** | 25.0 |
| 1H | 14 | 7 | 26.1* | 40.0*** | 11.4 |
| 11 | 7 | 14 | 42.0*** | 48.0*** | 22.0 |
| 15 | 7 | 14 | 61.5*** | 61.1*** | 22.5 |
The percentage of correct classification after cross-validation (CV) to individuals within each of the four study groups compared to that expected by chance; Results for the whole call, noisy segment and harmonic segment are given; p-values are derived from bootstrapping method [46]; • p ≤ 0.1, * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001
a Number of individuals tested
b Expected by chance.