Table 2.

Linear mixed-effect model results for how much of the variation in CEWL, plasma osmolality and body condition of G. sila is explained by measurement period (month) throughout the active season, lizard sex and their interaction (Fig. 3)

Hydric response variable	Explanatory variable	SS	F statistic df	P value
	Month	182	8.52,77	< 0.001
CEWL (g m−2 h−1)	Sex	55	5.21,73	0.03
	Month*Sex	47	2.22,85	0.1
	Month	9627	8.32,87	< 0.001
Plasma osmolality (mmol kg−1)	Sex	5545	9.61,70	0.003
	Month*Sex	770	0.72,92	0.5
	Month	348	16.22,71	< 0.0001
Body condition (g’)	Sex	9	0.81,75	0.4
	Month*Sex	138	6.42,80	0.003

SS = partial sum of squares, obtained using type 2 ANOVA with Kenward–Roger degrees of freedom; month = measurement period (April, May or July); Sex = lizard sex (Male, Female); Month^*Sex = interaction effect.