Table 3.
Comparison of models using combinations of thermal and structural characteristics of rock crevices as predictors of roost selection by 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 measurements represent how much warmer crevices were compared to ambient air, at the coldest (ΔTmin) part of the day, and on average (ΔTavg). Component 1 is a proxy for overall size of the upper rock forming each crevice. Models with less support (ΔAICc) than the intercept-only model are not shown. The intercept was included in all models.
| Model | LogLikelihood | AICc | ΔAICc | ωi |
|---|---|---|---|---|
| Reproductive females | ||||
| Component 1 + ΔTmin + ΔTmin * Site | −15.6 | 40.3 | 0.0 | 0.476 |
| ΔTmin + ΔTmin * Site | −17.5 | 41.6 | 1.3 | 0.249 |
| Component 1 + Crevice width + ΔTmin + ΔTmin * Site | −15.3 | 42.4 | 2.1 | 0.167 |
| Crevice width + ΔTmin + ΔTmin * Site | −17.1 | 43.3 | 3.0 | 0.106 |
| Component 1 | −23.8 | 52.0 | 11.7 | 0.001 |
| Component 1 + Crevice width | −23.8 | 54.3 | 14.0 | <0.001 |
| Intercept only | −26.5 | 55.0 | 14.7 | <0.001 |
| Males | ||||
| Crevice width + ΔTavg | 56.9 | 120.0 | 0.0 | 0.924 |
| Crevice width | 60.4 | 125.0 | 5.0 | 0.076 |
| ΔTavg | 71 | 146.1 | 26.1 | <0.001 |
| Intercept only | 74.9 | 151.9 | 31.9 | <0.001 |