Table 2.

Correlation coefficients among elements of BILs in 2014 (upper right) and 2015 (lower left).

Traits	Fe	Zn	Se	Cd	Hg	As
Fe	1	0.222**	0.111	-0.149*	-0.019	0.016
Zn	0.399**	1	0.235**	0.114	0.157*	0.026
Se	0.164*	0.374**	1	-0.111	0.124	-0.093
Cd	0.026	0.076	-0.028	1	0.108	-0.029
Hg	0.146	0.177*	0.143	0.004	1	-0.062
As	0.059	-0.138	-0.076	0.046	-0.075	1

*Correlation significant at the 0.05 level. **Correlation significant at the 0.01 level.