Table 3.
Results of model selection using AIC values on the phenotypic parameters (centroid size, relative warp 1, relative warp 3, and relative warp 4) measured using tpsRelW (Rohlf 2006) for four populations of brook trout from Algonquin Park transplanted into three study lakes north of Lake Huron, Ontario, Canada
| Response variable | Model | Log likelihood | d.f. | AIC | Δ AIC |
|---|---|---|---|---|---|
| Centroid | Lake × Source | −565.99 | 13 | 1158.00 | 0.00 |
| Lake + Source | −574.08 | 7 | 1162.20 | 4.18 | |
| Lake | −591.43 | 4 | 1190.90 | 32.88 | |
| Source | −667.09 | 5 | 1344.20 | 186.19 | |
| Intercept | −671.40 | 2 | 1346.80 | 188.81 | |
| RW1 | Lake + Source + Centroid | 855.94 | 8 | −1695.90 | 0.00 |
| Lake × Source + Centroid | 860.79 | 14 | −1693.60 | 2.31 | |
| Lake + Centroid | 848.38 | 5 | −1686.80 | 9.12 | |
| Lake | 795.68 | 4 | −1583.40 | 112.53 | |
| Lake × Source | 804.15 | 13 | −1582.30 | 113.58 | |
| RW3 | Lake × Source + Centroid | 835.90 | 14 | −1643.80 | 0.00 |
| Lake + Source + Centroid | 828.99 | 8 | −1642.00 | 1.83 | |
| Lake × Source | 833.68 | 13 | −1641.40 | 2.45 | |
| Lake + Source | 827.62 | 7 | −1641.20 | 2.57 | |
| Source + Centroid | 824.73 | 6 | −1637.50 | 6.35 | |
| RW4 | Lake + Source + Centroid | 901.51 | 8 | −1787.00 | 0.00 |
| Source + Centroid | 896.71 | 6 | −1781.40 | 5.62 | |
| Lake × Source + Centroid | 903.09 | 14 | −1778.20 | 8.86 | |
| Source | 885.93 | 5 | −1761.90 | 25.17 | |
| Lake + Source | 887.02 | 7 | −1760.00 | 26.99 |