Table 1. Hurdle model for roe deer; dependent variable: Escape distance.
Count model- Zero-truncated poisson |
Zero hurdle model Binomial |
|||||
---|---|---|---|---|---|---|
β1 | Standard error | p | β2 | Standard error | p | |
Split 1: Comparison entry wound | ||||||
Forelegs, gastrointestinal tract, haunch, neck (intercept) | 4.295 | 0.104 | -0.685 | 0.158 | ||
Thorax, head | -0.857 | 0.113 | *** | 0.007 | 0.171 | 0.97 |
Split 2: Condition forelegs, gastrointestinal tract, haunch, neck | ||||||
Shooting distance ≤ 100 m (intercept) |
4.066 | 0.179 | -0.850 | 0.174 | ||
Shooting distance > 100 m |
0.671 | 0.380 | 0.08 | 1.218 | 0.467 | ** |
Split 5: Condition thorax, head | ||||||
Hunting from hides, stalking (intercept) | 3.396 | 0.045 | -0.817 | 0.076 | ||
Drive hunting | 0.154 | 0.084 | 0.07 | 0.614 | 0.153 | *** |
Split 6: Condition thorax, head (entry wounds) & drive hunting (hunting method) | ||||||
Shooting distance ≤ 60 m (intercept) | 3.196 | 0.087 | -0.262 | 0.149 | ||
Shooting distance > 60 m | 1.111 | 0.186 | *** | 0.088 | 0.331 | 0.79 |
Split 9: Condition thorax, head (entry wounds) & hunting from hides, stalking (hunting methods) | ||||||
Juvenile (intercept) | 3.185 | 0.145 | -1.630 | 0.251 | ||
Subadult, adult | 0.230 | 0.151 | 0.13 | 0.909 | 0.263 | *** |
1 Escape distances of 10 m and more
2 The hurdle part estimates the probability with which the escape distances occur (10 m or more), relative to the probability that no escape distances occur (< 10 m)
**p<0.01
***p<0.001