Table 1 Changes in vegetation structure between winter 2001 (pre burning) and winter 2002 (post summer fires) in treatment and control plots at the Aransas National Wildlife Refuge. We reported mean parameters, Bonferroni-corrected 95 % confidence intervals (CI), and test statistics for a year × treatment interaction.

Large shrub density ha⁻¹

0.43 (−1.74 to 2.60)

3 88 (1.71 to 6.05)

1.19 (−0.98 to 3.37)

1.01 (−1.16 to 3.18)

2.89

0.09

Herbaceous density (cm)

20.42 (17.77 to 23.06)

21.61 (18.97 to 24.26)

21.4 (18.75 to 24.26)

4.31 (1.67 to 6.96)

48.97

<0.01

% grass cover

0.71 (0.63 to 0.80)

0.78 (0.66 to 0.83)

0.75 (0.66 to 0.83)

0.38 (0.29 to 0.46)

26.79

<0.01

% forb cover

0.24 (0.15 to 0.33)

0.18 (0.09 to 0.27)

0.20 (0.12 to 0.29)

0.26 (0.17 to 0.35)

2.13

0.15

% shrub cover

0.01 (−0.01 to 0.02)

0.02 (0.01 to 0.03)

0.01 (0.01 to 0.03)

<0.01 (−0.10 to 0.02)

3.41

0.07