Table 1. The number and proportion of call types produced by Mauremys sinensis in each group.

Type	Adult females	Ratio (%)	Adult males	Ratio (%)	Subadult females	Ratio (%)	Subadult males	Ratio (%)	Mixed-sex	Ratio (%)	Sum
A	43	36.13	9	7.56	9	7.56	47	39.50	11	9.24	119
B	26	78.79	2	6.06	1	3.03	2	6.06	2	6.06	33
C	61	22.59	85	31.48	50	18.52	25	9.26	49	18.15	270
D	113	53.81	23	10.95	40	19.05	30	14.29	4	1.90	210
E	54	31.95	1	0.59					114	67.46	169
F	17	60.71	1	3.57	6	21.43	2	7.14	2	7.14	28
G	10	50.00	1	5.00	3	15.00	5	25.00	1	5.00	20
H					1	12.50			7	87.50	8
I			1	50.00	1	50.00					2
J									1	100.00	1
Total	324	37.67	123	14.30	111	12.91	111	12.91	191	22.21	860