Table 4.
Results of Z tests on P values from regressions of substitution rates on life history traits
| Trait | Taxon | n | P (all data points) | P (outliers removed) |
|---|---|---|---|---|
| BMR | All | 15 | 0.405 | 0.394 |
| BMR | Arthropoda | 3 | 0.764 | 0.270 |
| BMR | Mollusca | 3 | 0.207 | 0.314 |
| BMR | Mammalia | 5 | 0.227 | 0.341 |
| BMR | Aves | 4 | 0.677 | 0.812 |
| M | All | 15 | 0.479 | 0.042* |
| M | Arthropoda | 3 | 0.823 | 0.733 |
| M | Mollusca | 3 | 0.095 | 0.053 |
| M | Mammalia | 5 | 0.423 | 0.005** |
| M | Aves | 4 | 0.673 | 0.644 |
| G | All | 15 | 0.302 | 0.050 |
| G | Arthropoda | 3 | 0.726 | 0.635 |
| G | Mollusca | 3 | 0.071 | 0.062 |
| G | Mammalia | 5 | 0.462 | 0.065 |
| G | Aves | n/a | n/a | n/a |
M, body mass; G, metabolic rate estimated from mass and temperature (13).
*, P < 0.05;
**, P, < 0.01.