Table 3.
Linear mixed‐effects models predicting shorebird chick growth indices (see text for definition) in relation to seasonal hatch date, temperature (temp), percentage of days with precipitation (precip%), wind speed (wind), and invertebrate biomass (invert biomass) near Utqiaġvik, Alaska, 2013–2016
| Modela | K b | ΔAICc c | wi d |
|---|---|---|---|
| Dunlin | |||
| Seasonal hatch date + invert biomass | 3 | 0.0 | 0.65 |
| Seasonal hatch date*invert biomass | 4 | 2.8 | 0.16 |
| Invert biomass | 2 | 4.8 | 0.06 |
| Invert biomass + precip% | 3 | 5.6 | 0.04 |
| Temp*seasonal hatch date | 4 | 6.5 | 0.03 |
| Intercept | 1 | 13.4 | 0.00 |
| Pectoral Sandpiper | |||
| Invert biomass | 2 | 0.0 | 0.77 |
| Seasonal hatch date | 2 | 3.9 | 0.11 |
| Temp + invert biomass | 3 | 5.6 | 0.05 |
| Temp*invert biomass | 4 | 6.5 | 0.03 |
| Wind*seasonal hatch date | 4 | 7.4 | 0.02 |
| Intercept | 1 | 28.6 | 0.00 |
| Red Phalarope | |||
| Seasonal hatch date | 2 | 0.0 | 0.73 |
| Seasonal hatch date + temp | 3 | 4.5 | 0.08 |
| Seasonal hatch date + invert biomass | 3 | 4.9 | 0.06 |
| Seasonal hatch date + wind | 3 | 5.4 | 0.05 |
| Seasonal hatch date + precip% | 3 | 5.5 | 0.05 |
| Intercept | 1 | 19.4 | 0.00 |
a
Only the top five models and intercept‐only model are shown.
b
Number of parameters.
c
Difference between model's Akaike's Information Criterion corrected for sample size (AICc) and the lowest AICc value.
d
AICc relative weight attributed to model.