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Mean daily energy expenditure (DEE) for facultative heterothermy (DEEheterothermic) over the course of the study as a function of (A) box design: reference (REF), chimney (CH), external water jacket (EJW), vent removal (VR), and white tile roof (WTR) and (B) landscape placement: open sun (open), easterly sun (east), westerly sun (west), full shade (forest). Vertical black lines designate reproductive stages P: pregnancy, L: lactation, PL: post-lactation.
