Table 3 Environmental predictors (with estimated coefficient) of the total number of alien species (N) (Table 2), numbers of individual alien trees (Tr) and lianas (Li), and covers of alien shrubs (Sh) and herbs (He) in surveyed plots in eight National Parks in Java. Bold numbers are significant regression coefficients (p < 0.05). abs = absent; b-bin = betabinomial.
From: Alien plant invasions of protected areas in Java, Indonesia
Predictor | Ujung Kulon | Meru Betiri | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
N | Tr | Li | Sh | He | N | Tr | Li | Sh | He | |
Intercept | −2.37 | abs | abs | −7.20 | −9.20 | 1.68 | abs | 1.13 | −4.27 | −2.64 |
Altitude | 0.73 | 1.21 | −0.30 | −0.78 | 1.47 | |||||
Canopy cover | −0.49 | −1.02 | −1.37 | 0.83 | −0.56 | |||||
Shrub cover | 1.07 | |||||||||
Native shrub cover | −0.87 | −1.49 | −0.88 | −0.47 | ||||||
Trail width | −0.95 | −0.90 | 8.26 | 0.43 | ||||||
Clay | −0.97 | 1.42 | −15.82 | −0.34 | ||||||
Total N | −1.31 | 18.22 | ||||||||
Available K | 13.68 | |||||||||
error type | Poisson | b-bin | b-bin | Poisson | Poisson | b-bin | b-bin | |||
Predictor | Alas Purwo | Baluran | ||||||||
N | Tr | Li | Sh | He | N | Tr | Li | Sh | He | |
Intercept | −1.23 | abs | abs | −5.10 | −6.53 | −0.21 | −0.67 | 0.49 | −5.23 | −7.08 |
Altitude | −0.31 | −2.18 | −0.80 | |||||||
Slope | −0.78 | −1.18 | −1.32 | −0.13 | 0.68 | −0.28 | ||||
Canopy cover | −0.39 | −0.89 | −0.29 | −0.69 | −0.55 | |||||
Shrub cover | −1.44 | 0.70 | ||||||||
Native shrub cover | −0.33 | |||||||||
Trail width | 0.61 | 0.22 | 0.97 | 1.80 | ||||||
Total N | −0.51 | −0.65 | −2.38 | −0.24 | −0.27 | |||||
Available K | 0.53 | |||||||||
error type | Poisson | b-bin | b-bin | Poisson | nbinom | nbinom1 | b-bin | b-bin | ||
Predictor | Gunung Gede Pangrango | Gunung Merapi | ||||||||
N | Tr | Li | Sh | He | N | Tr | Li | Sh | He | |
Intercept | −18.85 | abs | abs | 68.75 | −49.70 | 0.49 | −0.50 | abs | −2.23 | −2.89 |
Altitude | −0.96 | −0.74 | −0.48 | −0.62 | −1.84 | −1.04 | −0.82 | |||
Slope | −4.98 | |||||||||
Canopy cover | 5.84 | 1.70 | ||||||||
Shrub cover | 0.36 | |||||||||
Native shrub cover | −1.63 | −0.50 | −0.79 | −0.39 | ||||||
Trail width | −2.71 | |||||||||
Total N | 2.18 | |||||||||
Available P | 0.39 | −3.17 | 0.98 | |||||||
Available K | 13.38 | |||||||||
error type | Poisson | b-bin | b-bin | Poisson | Poisson | b-bin | b-bin | |||
Predictor | Gunung Merbabu | Bromo Tengger Semeru | ||||||||
N | Tr | Li | Sh | He | N | Tr | Li | Sh | He | |
Intercept | 0.25 | −11.64 | abs | −11.26 | −2.19 | 7.84 | 41.63 | abs | 23.95 | 2.63 |
Altitude | −0.65 | −3.37 | −2.73 | −0.62 | 0.0003 | |||||
Slope | 0.09 | −0.18 | 0.36 | |||||||
Canopy cover | −0.004 | −0.01 | ||||||||
Shrub cover | 0.02 | 0.03 | ||||||||
Native shrub cover | −0.44 | −0.01 | −0.03 | −0.01 | −0.01 | |||||
Trail width | −0.33 | −0.66 | −0.56 | |||||||
Sand | 0.18 | −0.22 | −0.17 | |||||||
Clay | −0.23 | |||||||||
Total N | −0.37 | 4.26 | 29.66 | |||||||
Available K | 2.23 | 1.71 | 1.24 | −1.99 | 2.09 | |||||
error type | Poisson | nbinom | b-bin | b-bin | Poisson | nbinom1 | b-bin | b-bin | ||
