Table 2. Model selection table for growth analysis of American crocodiles (Crocodylus acutus) in South Florida.
| Model | K | AIC | ΔAICc | ωi |
|---|---|---|---|---|
| Global | ||||
| Constant | 2 | 930.53 | 1278.98 | 1.86e-278 |
| First order polynomial | 3 | 174.28 | 522.73 | 3.07e-114 |
| Second order polynomial | 4 | -338.89 | 9.57 | 8.30e-03 |
| Third order polynomial | 5 | -348.46 | 0.00 | 9.92e-01* |
| Sex | ||||
| Constant | 5 | -15.26 | 4.14 | 0.11 |
| First order polynomial | 7 | -13.02 | 6.38 | 0.04 |
| Second order polynomial | 9 | -19.40 | 0.00 | 0.86* |
| Salinity | ||||
| Constant | 5 | -330.67 | 76.86 | 2.04 |
| First order polynomial | 9 | -386.29 | 21.24 | 2.45 |
| Second order polynomial | 21 | -407.53 | 0.00 | 9.99* |
| Longitude | ||||
| Constant | 5 | -320.84 | 74.85 | 5.57 |
| First order polynomial | 7 | -348.18 | 47.52 | 4.81 |
| Second order polynomial | 13 | -395.70 | 0.00 | 1.00* |
Included models: global model, additive terms to the global model are sex, salinity, and longitude (easting). K is the number of parameters in the model; AIC is the Akaike information criterion; ΔAICc is the difference of each model relative to the best model; ωi is the weight of evidence that each model is the best;
* model selected.