Table 2 The effect of wing loading on the proportion of black on the wingtips.

From: Dark wing pigmentation as a mechanism for improved flight efficiency in the Larinae

 

Estimate ± SE

Ratio

Z

P

Intercept

1.65 ± 0.44

5.20

3.73

<0.001

Wing loading

0.34 ± 0.16

1.40

2.08

0.037

Absolute latitude

−0.05 ± 0.01

0.95

−5.24

<0.001

  1. Results of a beta regression with logit link function and phylogenetic covariance structure. The ratios signify, for the intercept, the ratio of black to non-black predicted by the model at the baseline values (mean wing loading and a latitude of 0°), and, for each predictor variable, the ratio of black to non-black predicted by one unit increase divided by the ratio at the baseline. N = 49 species.
Back to article page