Table 4. Negative Binomial Models quantifying the influence of factors on estimates of snow leopard abundance.
Rankings are based on Akaike’s Information Criterion (AIC). Also includes relative parameter importance with summed AIC weights. (K = Number of parameters in the model; AIC wt = AIC model weight; AIC cum wt = AIC cumulative model weight).
| Parameter | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | K | AIC | Delta AIC | AICwt | AIC cum. wt | Grazing | Prey | Slope | |
| 1 | Abundance ~ Prey+ Grazing | 4 | 3585.51 | 0 | 0.50 | 0.50 | 1 | 1 | 0 |
| 2 | Abundance ~ Slope + Prey+ Grazing | 5 | 3585.57 | 0.05 | 0.48 | 0.98 | 1 | 1 | 1 |
| 3 | Abundance ~ Slope+ Prey | 4 | 3592.78 | 7.27 | 0.01 | 0.99 | 0 | 1 | 1 |
| 4 | Abundance ~ Grazing | 3 | 3593.62 | 8.10 | 0.01 | 1.00 | 1 | 0 | 0 |
| 5 | Abundance ~ Slope | 3 | 3615.45 | 29.94 | 0.00 | 1.00 | 0 | 0 | 1 |
| 6 | Abundance ~ Prey | 3 | 3616.15 | 30.64 | 0.00 | 1.00 | 0 | 1 | 0 |
| 7 | Abundance ~ Slope+ Grazing | 4 | 3617.03 | 31.52 | 0.00 | 1.00 | 1 | 0 | 1 |
| Relative parameter importance (summed AIC wt) | 0.99 | 0.99 | 0.50 | ||||||