Day-to-day comparisons of peak frequencies (left half) and durations (right half) of RF and SCF calls produced by all 8 individuals.

Frequency and duration values for RF calls are given as averages for 10 calls emitted immediately before and after a sequence of SCF calls. The number of SCF syllables analyzed is given in Table 1. Pday-to-day: significance levels (ANOVA) for comparing RF and SCF calls emitted on different days. PRF: significance levels for comparing peak frequencies of RF calls emitted immediately before and after a SCF sequence. PD: significance levels for comparing durations of RF calls emitted immediately before and after a SCF sequence.