Table 3. Accuracy metrics of GARP experiments to model Toxostoma rufum, the Brown Thrasher, across the continental US (lower 48 states) based on three experiments.
All variables (23 total variables, no UI calculated), UI 0.5 threshold (UI less than 0.5) and UI 0.25 threshold (a more conservative cutoff). Models were performed with the same parameter setting each time, selecting only variables in the accompanying plots in Fig. 5.
| GARP experiment | Total omission | Average omission | Total commission | Average commission | AUC | AUC Standard Error | AUC Z-score |
|---|---|---|---|---|---|---|---|
| Tr50* All variables | 0.03 | 10.9 | 41.46 | 55.44 | 0.745 | 0.02 | 15.7 |
| Tr50 UI 0.5 threshold | 0.012 | 5.97 | 39.73 | 53.01 | 0.756 | 0.02 | 15.7 |
| Tr50 UI 0.25 threshold | 0.024 | 8.1 | 34.69 | 48.22 | 0.767 | 0.02 | 14.9 |
Note:
*
Toxostoma rufum locations based on 50 km thinning using spThin R package.