Table 6 Regression equations for OCW under PGLS, using all individual specimens, using only wild-caught specimens, and including condyle shape or brain size as additional variables
From: Occipital condyle width (OCW) is a highly accurate predictor of body mass in therian mammals
Analysis | N | Equation | df | r2adj | %PE | CF | %PEcf | %SEE |
|---|---|---|---|---|---|---|---|---|
PGLS | ||||||||
Brownian | 404 | ln(body mass) = 7.933560 × ln(OCW)2/3 − 9.095213 | 402 | – | 68.88 | 1.754 | 31.56 | 276.00 |
OU model | 404 | ln(body mass) = 7.691496 × ln(OCW)2/3 − 8.191059 | 402 | – | 32.00 | 1.046 | 31.08 | 47.45 |
Using all specimens individually | ||||||||
OCW | 2127 | ln(body mass) = 7.68179 × ln(OCW)2/3 − 8.18617 | 2125 | 0.9775 | 34.43 | 1.071 | 32.93 | 50.60 |
Using species average of wild-caught specimens only | ||||||||
OCW | 346 | ln(body mass) = 7.6249 × ln(OCW)2/3 − 8.0759 | 344 | 0.9764 | 32.09 | 1.071 | 30.91 | 48.51 |
Including “monotreme-like” and “rabbit-like” states as additional variables | ||||||||
OCW | 404 | ln(body mass) = 0.71517 × rabbit − 1.14562 × monotreme + 7.75844 × ln(OCW)2/3 − 8.35284 | 400 | 0.9850 | 28.18 | 1.025 | 27.68 | 41.37 |
OCW + brain mass | ||||||||
OCW + brain mass | 323 | ln(body mass) = 6.96789 × ln(OCW)2/3 + 0.12473 × ln(brain mass) − 7.03109 | 320 | 0.9807 | 31.51 | 1.063 | 30.48 | 46.36 |
OCW | 323 | ln(body mass) = 7.65044 × ln(OCW)2/3 − 8.08812 | 321 | 0.9803 | 31.54 | 1.050 | 30.56 | 46.88 |