Repeated measures GLMs and Tukey's tests for EVR variables (NP, DP, OR and DF) within four series of stimuli presented to males from the Totoral population of P. thaul.

In the last column, multiple comparisons showing significant differences are listed. The significance level was 0.05.Abbreviations: NP: number of pulses, PD: pulse duration, OR: on-off ratio, DF: dominant frequency. In the Tukey's test column T, LM and O refer to standard calls for Totoral, Los Maitenes and Osorno, respectively. In this column, letters and numbers separated by “vs” indicate the stimuli variables compared showing significant differences.