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Least squares model of the relationship between ranked slope relating clutch size to minimum and maximum base area and species (fixed effect). The model had the statistics F = 2.68, df = 22, 93, r2 = 0.24, P = 0.0005
| Variable | Sum of squares | df | F | P | Estimate | Error |
|---|---|---|---|---|---|---|
| Intercept | 18.84 | <0.0001 | 264.35 | 60.94 | ||
| Minimum base area (cm2) | 847668 | 1 | 7.61 | 0.007 | −62.05 | 22.49 |
| Maximum base area (cm2) | 1242860 | 1 | 11.16 | 0.0012 | −37.67 | 11.28 |
| Species | 57274564 | 20 | 2.57 | 0.0012 | ||
| Error | 10354141 | 93 |
