TABLE 2.

Results from multivariate statistical analyisis of phylogenetic group abundances

Factor	MANOVA results		ANOVA results
			Group I		Group II		Group III
	Wilks lambda	P	F	P	F	P	F	P
Metal	3.86	<0.001	5.12	0.001	3.1	0.02	8.52	<0.001
Sampling date	13.67	<0.001	46.32	<0.001	92.86	<0.001	67.18	<0.001
Metal × sampling date	2.7	<0.001	2.79	<0.001	2.1	0.02	4.21	<0.001