Table 1 ZINB/NB-GLM model selection for (a) wolverine, (b) American marten, and (c) short-tailed weasel spatial distributions during winter in the Willmore Wilderness Park, Alberta. ZINB/NB-GLM models are ranked according to model weight associated with AICc values. Parameters are designed to create representational models for: competition related factors (M1), habitat character factors (M2) and a full model consisting of combined habitat-competition factors (M3).
Model number | Predictor variables | ||
|---|---|---|---|
M1 (k = 3, df = 7) | Mustelid no.1 + mustelid no.2 + Lynx | ||
M2 (k = 2, df = 9) | Landcover + Snow depth | ||
M3 (k = 5, df = 13) | Mustelid no.1 + mustelid no.2 + Lynx + Landcover + Snow depth |
a. Wolverine model rank | \(\Delta\) AICc | Weight | Log-likelihood |
|---|---|---|---|
M3 | 0.00 | 0.997 | − 1028 |
M1 | 12.47 | 0.002 | − 1041 |
M2 | 13.39 | 0.001 | − 1039 |
b. Marten model rank | \(\Delta\) AICc | Weight | Log-likelihood |
|---|---|---|---|
M3 | 0.00 | 0.981 | − 2638 |
M2 | 7.93 | 0.019 | − 2648 |
M1 | 158.83 | 0.000 | − 2721 |
c. Weasel model rank | \(\Delta\) AICc | Weight | Log-likelihood |
|---|---|---|---|
M3 | 0.00 | 0.856 | − 367 |
M2 | 3.56 | 0.144 | − 368 |
M1 | 26.40 | 0.000 | − 382 |
