Table 6

Leaf metal concentrations and Repeated Mesured ANOVA F for each metal at each time period at Calvi site.

N

Cr

Ni

Cu

Zn

Cd

Pb


1988

5

0.9 ± 0.2

0 ± 0

6.7 ± 2.2 a

88.0 ± 6.8 ab

4.0 ± 1.3

8.6 ± 7.5 a

1993

12

2.4 ± 2.0

20.5 ± 14.6

9.3 ± 2.0 a

120.7 ± 42.0 b

3.2 ± 1.3

7.7 ± 4.5 a

1994

8

0.9 ± 0.9

29.4 ± 3.9

4.4 ± 2.2 a

123.8 ± 47.5 ab

2.6 ± 0.4

4.9 ± 2.1 ab

2003

5

1.1 ± 0.2

18.9 ± 2.6

21.7 ± 4.2 c

65.8 ± 8.4 a

2.3 ± 0.3

2.0 ± 0.8 b

2004

5

1.0 ± 0

22.6 ± 4.6

15.3 ± 2.1 b

102.1 ± 11.9 ab

2.9 ± 0.4

3.0 ± 0.9 ab

Log transformed

No

No

No

No

No

Yes

Sum squares

8.254

809.625

928.829

11543.927

8.462

6.521

Mean square

2.063

269.875

232.207

2885.982

2.115

1.630

df

4

4

4

4

4

4

ANOVA F

2.391

2.592

47.482*

3.246*

2.175

4.200*


Leaf concentrations were expressed in μg gDW-1 (mean ± standard deviation). Where a significant difference was found, a Tukey's HSD post hoc comparison was used to determine where the differences lay and similar samples were marked with the same letter. N corresponds to the number of samples and significantly different samples are marked as * (p < 0.05).

Gosselin et al. BMC Ecology 2006 6:12   doi:10.1186/1472-6785-6-12

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