Table 5.
Coefficients of determination and significance values for regressions between life-history traits and limb bone allometry using raw data.
| OLS regression | Autocorrelation | |||||
|---|---|---|---|---|---|---|
| N | R***2 | P | Significant? | P | DW | |
| (A) Mass: Anderson et al. | ||||||
| Dinosauria | ||||||
| Humeral | 7 | 0.0033 | 0.9022 | No | 0.0009 | 0.7057 |
| Femoral | 20 | 0.0214 | 0.5384 | No | 0.1898 | 1.5418 |
| Tibial | 15 | 0.0232 | 0.5881 | No | 0.018 | 1.0578 |
| Saurischia | ||||||
| Femoral | 13 | 0.1445 | 0.2002 | No | 0.0582 | 1.2064 |
| Tibial | 11 | 0.0434 | 0.5389 | No | 0.0064 | 0.8414 |
| Ornithischia | ||||||
| Femoral | 6 | 0.4447 | 0.1018 | No | 0.4713 | 1.8762 |
| Non-avian theropods | ||||||
| Femoral | 8 | 0.2146 | 0.2476 | No | 0.0004 | 0.6112 |
| Tibial | 7 | 0.5013 | 0.750 | No | 0.6319 | 1.9581 |
| (B) Mass: mixed model | ||||||
| Dinosauria | ||||||
| Humeral | 7 | 0.0016 | 0.9327 | No | 0.001 | 0.7132 |
| Femoral | 20 | 0.0587 | 0.3033 | No | 0.207 | 1.5625 |
| Tibial | 15 | 0.0049 | 0.8036 | No | 0.019 | 1.0656 |
| Saurischia | ||||||
| Femoral | 13 | 0.0947 | 0.3063 | No | 0.0326 | 1.0988 |
| Tibial | 11 | 0.0167 | 0.7051 | No | 0.0057 | 0.8272 |
| Ornithischia | ||||||
| Femoral | 6 | 0.4320 | 0.1086 | No | 0.4626 | 1.867 |
| Non-avian theropods | ||||||
| Femoral | 8 | 0.1884 | 0.2826 | No | <0.0001 | 0.4903 |
| Tibial | 7 | 0.4873 | 0.0811 | No | 0.4612 | 1.794 |
| (C) Growth rates | ||||||
| Femoral | 9 | 0.1611 | 0.2843 | No | 0.1144 | 1.3146 |
| Tibial | 6 | 0.1219 | 0.4975 | No | 0.4149 | 1.7913 |
Sections A and B are regression and Durbin-Watson (DW) test results for ordinary least squares (OLS) regressions of adult body mass and long bone allometry. Section C contains OLS regression and DW test results for regressions of maximum growth rate and long bone allometry. In section A, mass estimates are calculated solely from the equations of Anderson et al. (1985). In section B, mass estimates for non-avian theropods were calculated using the formulas in Christiansen & Fariña (2004), whereas mass estimates for quadrupedal taxa were calculated using formulas from Packard et al. (2009). Mass estimates for bipedal ornithischians in section B were calculated using the equations of Anderson et al. (1985). P-values and DW statistics are also given for DW tests for autocorrelation, as both long bone allometry and mass estimates were determined using long bone circumferences. Autocorrelation is significant if P < 0.05.