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Table 2 Parameters of regressions between each pair of three main body components (dry carcass, dry residual yolk and dry fat bodies) estimated with ordinary least squares (OLS) and phylogenetic generalized least squares (PGLS) regression models

From: Does the oviparity-viviparity transition alter the partitioning of yolk in embryonic snakes?

Models N Slope Elevation r 2 ln likelihood AIC λ F 1, 18 P-value
OLS regression model          
 Carcass vs Residual yolk 20 1.70 ± 0.23 0.62 ± 0.14 0.74 −13.43 32.86   52.34 < 0.0001
 Fat bodies vs Residual yolk 20 0.53 ± 0.06 0.12 ± 0.04 0.80 13.27 −20.55   73.84 < 0.0001
 Carcass vs Fat bodies 20 3.25 ± 0.16 0.23 ± 0.07 0.96 4.16 −2.33   390.63 < 0.0001
PGLS regression model          
 Carcass vs Residual yolk 20 1.50 ± 0.19 0.39 ± 0.31 0.76 −8.50a 25.00 0.84 59.90 < 0.0001
 Fat bodies vs Residual yolk 20 0.46 ± 0.06 0.10 ± 0.07 0.79 15.01 −22.03 0.54 59.52 < 0.0001
 Carcass vs Fat bodies 20 3.13 ± 0.17 0.16 ± 0.13 0.95 7.26a −6.53 0.75 353.10 < 0.0001
  1. Models with a superscript of a are significantly better than their alternate OLS or PGLS models