Physical characteristics of the male bladder grasshopper advertisement calls used in the study
| Species . | Peak frequency (kHz) . | Call length (s) . | Final syllable length (s) . | Number of short syllables . | Final syllable repeated . |
|---|---|---|---|---|---|
| B. intermedia (Savanna) | 1.81 | 2.87 | 1.10 | 6 | No |
| B. membracioides (Savanna) | 1.72 | 2.55 | 0.77 | 5 | No |
| B. serrata (Savanna) | 2.15 | 1.44 | 1.13 | 2 | No |
| B. unicolor (Succulent karoo) | 2.07 | 2.34 | 1.12 | 2 | No |
| B. obliqua (Fynbos) | 1.55 | 5.83 | 4.16 | 4 | No |
| Ph. variolosus (Fynbos) | 3.19 | 0.66 | 0.30 | 2 | No |
| Pn. inanis (Forest) | 1.46 | 9.93 | 0.28 | 6 | Yes, 10× |
| Species . | Peak frequency (kHz) . | Call length (s) . | Final syllable length (s) . | Number of short syllables . | Final syllable repeated . |
|---|---|---|---|---|---|
| B. intermedia (Savanna) | 1.81 | 2.87 | 1.10 | 6 | No |
| B. membracioides (Savanna) | 1.72 | 2.55 | 0.77 | 5 | No |
| B. serrata (Savanna) | 2.15 | 1.44 | 1.13 | 2 | No |
| B. unicolor (Succulent karoo) | 2.07 | 2.34 | 1.12 | 2 | No |
| B. obliqua (Fynbos) | 1.55 | 5.83 | 4.16 | 4 | No |
| Ph. variolosus (Fynbos) | 3.19 | 0.66 | 0.30 | 2 | No |
| Pn. inanis (Forest) | 1.46 | 9.93 | 0.28 | 6 | Yes, 10× |