Table 1. Sex-biased dispersal analysis of all snakes and east and west populations based on FSTAT.

Population	Sex	F st	F is	H s	mAIc	vAIc	r
Abbreviations are explained in the main text. M: Male; F: Female.
All snakes	M	0.1158	0.1469	0.8467	3.4394	29.6461	0.1859
	F	0.0669	0.1748	0.9079	–4.5300	151.6949	0.1089
	P-value	0.0011	0.3392	0.0008	0.0002	0.0004	0.0015
East population	M	0.1403	0.1469	0.8136	4.8099	24.4277	0.2215
	F	0.0700	0.2240	0.8926	–6.7695	198.7025	0.1095
	P-value	0.0006	0.0294	0.0004	0.0002	0.0004	0.0006
West population	M	0.0279	0.1542	0.9294	0.1845	26.9841	0.0474
	F	0.0223	0.0877	0.9331	–0.2108	32.7093	0.0403
	P-value	0.7315	0.1870	0.8460	0.8475	0.6279	0.8039