Table 4. The top 10 model selection results for study areas in interior North America (n = 90) relating grizzly density to variables that were hypothesized to be functionally related to density.
| Model number | Model description | AICc | ΔAICc | K | AICc weight |
| 2 | Prcp_NDVI_AET_H50_LHum_Live_Rug | 978.9 | 0.0 | 9 | 0.17 |
| 3 | Prcp_NDVI_AET_H50_T25_LHum_Live_Rug | 979.0 | 0.1 | 10 | 0.16 |
| 4 | Prcp_AET_H50_Meat_LHum_Live_Rug | 979.1 | 0.3 | 9 | 0.15 |
| 5 | Prcp_NDVI_AET_H50_T25_Meat_LHum_Live | 980.1 | 1.2 | 10 | 0.09 |
| 6 | Prcp_NDVI_AET_H50_T25_SP_Meat_LHum_Live_Rug | 980.2 | 1.4 | 12 | 0.08 |
| 7 | Prcp_NDVI_AET_H50_SP_Meat_LHum_Live_Rug | 980.5 | 1.6 | 11 | 0.07 |
| 8 | Prcp_AET_H50_SP_Meat_LHum_Live_Rug | 981.2 | 2.3 | 10 | 0.05 |
| 9 | Prcp_AET_H50_T25_Meat_LHum_Live_Rug | 981.5 | 2.6 | 10 | 0.05 |
| 10 | Prcp_NDVI_AET_H50_T25_SP_Meat_LHum_Live | 982.6 | 3.7 | 11 | 0.03 |
| 11 | Prcp_AET_H50_T25_SP_Meat_LHum_Live_Harv_Rug | 982.8 | 3.9 | 12 | 0.02 |
= precipitation, NDVI = normalized differential vegetation index, AET = actual evapotranspiration, H50 = herbaceous and shrub cover >50%, T25 = tree cover >25%, Meat = terrestrial meat in diet, SP = presence of salmon in diet, LHum = log human density, Live = livestock density, Harv = human-caused mortality, Rug = ruggedness. The top-ranked model was excluded from this list, because it contained 2 uninformative variables. Variables are: Prcp