Table 2.

Examined male song characters in close related Isophya species (for abbreviations see Appendix 1: Isophya song abbreviations) n – number of analyzed specimens; t – temperature °C.

Song type	Species	Song characters	Min.	Max.	Mean	S. D.	n	t
Grouped syllable sequences	Isophya dochia sp. n.	ASD (ms)	30	70	50.74	12.83	30	20–25
		NIA	9	29	18.6	6.31
		GS (ms)	60	131	96.28	24.62
		BSD (ms)	30	59	39.3	9.4
		NIB	9	15	12.36	2.1
		DACB (ms)	621	1655	1109.1	212.65
		NACB	1–4
		BSTD (ms)	621	1770	1114.46	325.45
		SGTD (ms)	1288	4761	2633.56	792.48
		SGD (ms)	612	3028	1406.86	598.95
		GSG (ms)	157	326	225.2	52.66
	Isophya harzi	ASD (ms)	75	168	121.64	28.36	16	19–26
		NIA	23	55	40.5	9.67
		DACA (ms)	40	90	64	16.97
		NACA	0–2
		ASTD (ms)	75	258	156.42	77.01
		GAA (ms)	122	298	175.78	48.25
		GAB (ms)	367	789	527.4	126.18
		BSD (ms)	94	216	154.7	43.54
		NIB	37	59	46.5	8.38
		DACB (ms)	75	202	142.3	47.19
		NACB	0–2
		BSTD (ms)	94	418	223.3	114.78
		SGTD (ms)	617	6168	2254.8	1954.04
		SGD (ms)	617	6091	2126	2001.43
		GSG (ms)	191	303	249.8	40.28
Ungrouped syllable sequences	Isophya camptoxypha	SD (ms)	27	90	61.76	21.37	58	19–27
		NI	10	32	19.9	7.62
		GS (ms)	110	289	189	50.18
		DAC (ms)	56	257	112.6	70.71
		NAC	0–1 (rarely 2–7)
		STD (ms)	27	363	77.8	97.58
	Isophya ciucasi	SD (ms)	7	24	15.56	5.12	34	24–28
		NI	3	26	15.32	6.74
		GS (ms)	134	600	378.08	116.95
		DAC (ms)	52	167	101.2	38.31
		NAC	10–30
		STD (ms)	209	438	273.76	56.76
	Isophya nagyi	SD (ms)	167	793	486.28	200.49	12	21–25
		SDC1 (ms)	9	31	21	8.08
		NIC1	5	18	12	4.72
		GC12 (ms)	68	301	187.6	101.94
		SDC2 (ms)	127	221	173.9	31.57
		NIC2	35	79	57	13.5
		GC23 (ms)	39	97	67.5	19.04
		SDC3 (ms)	1	35	16.4	12.33
		NIC3	1	11	5.1	3.36
		GS (ms)	59	235	154.26	49.59
	Isophya sicula	SD (ms)	1	4	1.6	1.03	3	25
		NI	1	3	1.3	0.65
		GS (ms)	190	446	337.78	62.64
		DAC (ms)	51	110	73.2	19.71
		NAC	0–1 (rarely 2–5)
		STD (ms)	52	265	75.1	63.96