Table 1.

Body temperature (T_b), environmental temperature (T_e), deviation of T_b (${\displaystyle \overline{db}}$) and of T_e (${\displaystyle \overline{de}}$) from T_set, and E, calculated for daytime (0600–1800) and nighttime (1800–0600), during the 4 seasons

		autumn		winter		spring		summer
	day	night	day	night	day	night	day	night
Tb	20.5 ± 0.3	20.6 ± 0.2	18.1 ± 0.2	18.8 ± 0.2	21.6 ± 0.1	21.0 ± 0.2	23.2 ± 0.2	22.5 ± 0.2
Te	Shelter
	21.1 ± 0.1	21.5 ± 0.1	18.2 ± 0.04	18.7 ± 0.04	21.8 ± 0.03	22.1 ± 0.03	24.3 ± 0.03	23.9 ± 0.3
	Shaded area
	20.7 ± 0.1	21.1 ± 0.1	18.2 ± 0.1	19.0 ± 0.1	22.0 ± 0.1	22.1 ± 0.1	23.7 ± 0.04	22.8 ± 0.1
	Water
	19.9 ± 0.1	20.5 ± 0.1	16.8 ± 0.1	17.9 ± 0.1	20.7 ± 0.1	21.3 ± 0.1	23.3 ± 0.1	22.6 ± 0.1
	Open area
	20.7 ± 0.1	15.1 ± 0.1	19.8 ± 0.1	13.9 ± 0.1	21.9 ± 0.1	16.3 ± 0.1	17.2 ± 0.1	22.6 ± 0.1
${\displaystyle \overline{db}}$	3.5 ± 0.02	3.4 ± 0.02	5.9 ± 0.02	5.2 ± 0.02	4.5 ± 0.02	5.0 ± 0.02	3.1 ± 0.02	3.5 ± 0.02
${\displaystyle \overline{de}}$	3.9 ± 0.03	4.6 ± 0.04	6.0 ± 0.04	6.6 ± 0.03	4.6 ± 0.03	5.6 ± 0.03	3.3 ± 0.03	4.0 ± 0.04
95% confidence interval of E	0.09 – 0.12	0.26 – 0.28	0.00 – 0.03	0.20 – 0.22	0.01 – 0.05	0.09 – 0.11	0.05 – 0.09	0.11 – 0.15