Table 3.
Single variable linear regressions for estimation of body mass for Phocidae, with the adjusted coefficient of determination (R2), standard error (SE), percent prediction error (PPE), and standard error of estimation (SEE) reported for each regression. Best predictors for body size estimation (as determined by combination of PPE and SEE) indicated in bold
| Equation | ad. R2 | SE | PPE (%) | SEE (%) | |
|---|---|---|---|---|---|
| BL | 2.98 × Log(BL) − 1.74 | 0.80 | 0.19 | 13.64 | 53.60 |
| PL | 2.63 × Log(PL) − 0.40 | 0.81 | 0.24 | 18.20 | 59.92 |
| LUTR | 2.52 × Log(LUTR) + 0.25 | 0.65 | 0.29 | 19.64 | 73.01 |
| LUPC | 2.27 × Log(LUPC) + 0.71 | 0.47 | 0.29 | 23.24 | 97.15 |
| CW | 1.95 × Log(CW) + 1.00 | 0.87 | 0.17 | 11.38 | 47.00 |
| BZB | 2.79 × Log(BZB) − 0.98 | 0.86 | 0.33 | 14.49 | 114.78 |
| LB | 1.83 × Log(LB) + 1.34 | 0.55 | 0.25 | 16.24 | 78.22 |
| WB | 3.01 × Log(WB) + 0.26 | 0.89 | 0.17 | 11.76 | 48.99 |
| OCB | 4.09 × Log(OCB) − 1.12 | 0.85 | 0.19 | 13.31 | 54.91 |
| HOC | 3.54 × Log(HOC) − 0.46 | 0.89 | 0.21 | 15.14 | 61.29 |
| OL | 3.39 × Log(OL) − 0.40 | 0.84 | 0.24 | 18.15 | 72.53 |
| LM | 2.65 × Log(LM) − 0.89 | 0.80 | 0.20 | 14.61 | 57.62 |
| LLTR | 2.28 × Log(LLTR) + 0.40 | 0.58 | 0.27 | 21.00 | 87.03 |
| LLPC | 2.13 × Log(LLPC) + 0.86 | 0.39 | 0.34 | 26.93 | 118.25 |