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. Author manuscript; available in PMC: 2020 Sep 16.
Published in final edited form as: Evol Ecol Res. 2018;19:639–657.

Table 9.

Mixed linear model analysis of the effects of shell size (PC1) and shape (PC2 and PC3) on three aspects of female reproductive effort (‘nesting females’)

Clutch size Total clutch mass Mean egg mass
Factor χ2-value P-value χ2-value P-value χ2-value P-value
PC1 554 <0.001 2935 <0.001 2477 <0.001
PC2 8.07 0.005 11.1 <0.001 3.55 0.05
PC3 0.15 0.70 2.07 0.15 0.18 0.67

Note: Size and sphericity, but not curviness, significantly affected all measures of female reproductive output. Models included individual turtle ID as a random effect.