TABLE 3 in Two new canyon-dwelling frogs from the arid sandstone Isalo Massif, central-southern Madagascar (Mantellidae, Mantellinae)

TABLE 3. Temporal and spectral parameters in the advertisement calls of Gephryromantis azzurrae and G. corvus (recorded on 18 December 2004, 19:30). Temporal data are given as range, followed (in parentheses) by mean ± standard deviation and number of measured elements. Gephyromantis azzurraeGephyromantis corvusLocalitySakamalioAmbovoAir temperature22°C20°CNotes per call15-21 (18 ± 4.2, n = 2)10-14 (11.5 ± 1.7, n = 4)Note duration (ms)290-340 (299 ± 12.8, n = 15)252-293 (281 ± 8.0, n = 10)Intervals between notes500-740 (573 ± 92.5, n = 14)513-716 (580.8 ± 50, n = 9)Sub-units per note7-10 (8.1 ± 1.1, n = 15)Non-identifiableSub-unit duration (ms)5-147 (31.5 ± 35, n = 32)-Intervals between sub-units (ms)1-8 (4.7 ± 1.67, n = 32)-Sub-unit repetition rate (1/s)7-9 (8 ± 0.8, n = 7)-Frequency (Hz)800-6500700-5200Dominant frequency (Hz)3000-32002400-2700