Table 4.
Comparison of models assessing relationships between structural and thermal characteristics of rock crevices, including random crevices and roosts of Eastern Small-footed Myotis (Myotis leibii) in the Appalachian Mountains of Virginia and New Hampshire, 2009–2018, based on Akaike Information Criterion corrected for small sample sizes (AICc) and model weights (ωi). Thermal characteristics described how much warmer crevices were than ambient air at the coldest (ΔTmin) and hottest (ΔTmax) parts of the day, and on average (ΔTavg). Models with lower ΔAICc rank than a site or intercept-only model are not shown. All models include the intercept.
| Model | LogLikelihood | AICc | ΔAICc | ωi |
|---|---|---|---|---|
| Models explaining ΔTmin | ||||
| Component 1 + Component 2 + Crevice width + Orientation + Site | −252.4 | 528.8 | 0.0 | 0.562 |
| Component 1 + Component 2 + Orientation + Site | −254.1 | 529.9 | 1.1 | 0.324 |
| Component 1 + Component 2 + Site | −256.9 | 533.2 | 4.4 | 0.062 |
| Component 1 + Component 2 + Crevice width + Site | −256.2 | 534.1 | 5.3 | 0.040 |
| Site | −267.7 | 550.3 | 21.5 | <0.001 |
| Intercept only | −291.2 | 586.4 | 57.6 | <0.001 |
| Models explaining ΔTmax | ||||
| Component 1 + Component 2 + Crevice width + Site | −367.4 | 754.8 | 0.0 | 0.328 |
| Component 1 + Component 2 + Site | −368.0 | 755.5 | 0.7 | 0.231 |
| Component 1 + Site | −370.0 | 757.1 | 2.3 | 0.104 |
| Component 1 + Component 2 + Orientation + Site | −368.0 | 757.8 | 3.0 | 0.073 |
| Site | −372.4 | 759.6 | 4.8 | 0.030 |
| Intercept only | −389.1 | 782.3 | 27.5 | <0.001 |
| Models explaining ΔTavg | ||||
| Orientation + Site | −253.8 | 524.8 | 0.0 | 0.193 |
| Site | −255.0 | 524.8 | 0.0 | 0.193 |
| Component 2 + Site | −254.8 | 526.7 | 1.9 | 0.075 |
| Component 1 + Site | −254.8 | 526.7 | 1.9 | 0.075 |
| Intercept only | −264.7 | 533.4 | 8.6 | <0.003 |