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Table 3 t-Test of cattail coverage (CTC,%) within sawgrass stand (SAW), sawgrass-cattail stand (SCT, cattails <50%), cattail-sawgrass stand (CTS, cattails >50%) in surface-burned areas (SBA) and non-burned areas (NBA) based on 134 sampling sites, collected four years after 1999 fire, in May, 2003

From: Impacts of fire and phosphorus on sawgrass and cattails in an altered landscape of the Florida Everglades

X

Mean (s.d.)

n

Σ(X-M)2

Y

Mean (s.d.)

n

Σ(Y-M)2

t

SBA-SAW-CTC

8 (7)

30

1524

NBA-SAW-CTC

6 (9)

15

1023

0.77

SBA-SCT-CTC

49 (21)

25

10864

NBA-SCT-CTC

31 (20)

16

5711

2.71*

SBA-CTS-CTC

77 (18)

31

9869

NBA-CTS-CTC

61 (20)

17

6612

2.75*

SBA-SAW-CTC

8 (7)

30

1524

SBA-SCT-CTC

49 (21)

25

10864

−9.81*

SBA-SCT-CTC

49 (21)

25

10864

SBA-CTS-CTC

77 (18)

31

9869

−5.28*

NBA-SAW-CTC

6 (9)

15

1023

NBA-SCT-CTC

31 (20)

16

5711

−4.49*

NBA-SCT-CTC

31 (20)

16

5711

NBA-CTS-CTC

61 (20)

17

6612

−4.32*

  1. * Statistically significant.