Table 1 Results of generalised linear mixed models testing the association of live bitou bush cover, fire frequency, time since last spray and any interaction on the species richness, abundance and diversity (Shannon’s Diversity Index) of plant, bird, herpetofauna, and small mammal assemblages.
From: Invasive shrub re-establishment following management has contrasting effects on biodiversity
Indicator | Fixed-effect | Plant | Bird | Herpetofauna | Small mammal | ||||
|---|---|---|---|---|---|---|---|---|---|
Est. (s.e.) | Z | Est. (s.e.) | Z | Est. (s.e.) | Z | Est. (s.e.) | Z | ||
Richness | intercept | 2.67 (0.14) | 18.93 | 3.04 (0.04) | 84.48 | −0.11 (0.12) | −0.98 | 0.60 (0.05) | 11.17 |
Bitou bush cover | 0.02 (0.02) | 1.04 | 0.02 (0.01) | 1.81 | 0.03 (0.03) | 0.10 | |||
Fire frequency | 0.14 (0.05) | 2.53 | 0.11 (0.06) | 1.78 | −0.05 (0.04) | −1.25 | |||
Bitou bush cover x Fire frequency | 0.03 (0.02) | 1.59 | |||||||
Abundance | intercept | −1.07 (0.24) | −4.40 | 4.38 (0.07) | 61.06 | 0.45 (0.26) | 1.75 | 1.37 (0.15) | 8.88 |
Bitou bush cover | −0.94 (0.23) | −3.30 | 0.06 (0.02) | 2.58 | 0.03 (0.05) | 0.70 | 0.08 (0.03) | 2.67 | |
Fire frequency | 0.68 (0.23) | 2.95 | −0.23 (0.08) | −3.03 | |||||
Time since last spray | 0.60 (0.15) | 3.90 | −0.01 (0.06) | −0.34 | |||||
Diversity | intercept | 2.08 (0.12) | 16.89 | 1.36 (0.06) | 21.86 | ||||
Bitou bush cover | 0.01 (0.03) | 0.15 | |||||||
Fire frequency | 0.18 (0.05) | 3.97 | |||||||
Time since last spray | 0.01 (0.04) | 0.37 | |||||||
