Table 1. Kendall’s rank correlation coefficients between pairs of environmental factors in the Phu Khieo Wildlife Sanctuary.

Salt lick
0.070	Station
−0.035	0.192**	Stream
−0.110155*	0.469**	−0.193**	Village
1.000	0.070	−0.035	−0.110*	Road
0.089	0.412**	−0.211**	0.669**	0.089	Elevation
0.229**	−0.093	−0.039	−0.155*	0.229**	−0.025	Slope

Notes.

The τ value is always between −1 and 1.

τ = 1

Perfect (very strong) positive correlation.

τ =  − 1

Perfect (very strong) negative correlation.

τ = 0

zero (no) correlation

^**correlation is significant at the 0.001 level (2-tailed).

^*correlation is significant at the 0.05 level (2-tailed). villages, roads, and streams were combined as “Human Activity” in the distribution maps.