Table 1. Descriptive statistics and Kruskal Anova Test (SD) standard error of the mean.

(Kruskal–Wallis test) Test of differences among individuals. (Bonferroni correction) P value adjusted acording Bonferroni correction.

Variable correction	Mean	Min	Max	SD	Kruskal–Wallis test H (7, N = 108)	p	Bonferroni
F0 (Hz)	28.69	27.0	32.0	1.23	56.47	p < 0.001	p < 0.001
Peak F (Hz)	63.46	27.0	94.0	21.87	56.00	p < 0.001	p < 0.001
Low F duration (s)	3.13	2.07	3.52	0.16	47.74	p < 0.001	p < 0.001
Song duration (s)	6.19	3.98	18.85	2.36	38.27	p < 0.001	p < 0.001
Trill duration (s)	1.25	0.48	2.33	0.39	32.96	p < 0.001	p < 0.001
Whetting duration (s)	2.85	2.37	3.28	0.15	64.89	p < 0.001	p < 0.001
LowF-Trill overlap (%)	28.44	9.04	77.4	11.91	43.88	p < 0.001	p < 0.001
LowF-Wheet overlap (%)	96.03	87.09	116.56	3.71	16.77	p < 0.019	p < 0.002