Table 2. Morphological variables, pelage index and torpor occurrence of Phodopus sungorus acclimated to short (SP group) and long (LP group) photoperiods, number of individuals reflecting all sample sizes in parentheses.

	Body mass Initial	Body mass Final	Testes	Epididymis	Uterus+Ovary	Pelage index	Torpor occurrence (%)
	(g)	(g)	(g)	(g)	(g)
SP females	32.1±0.7 (3)	23.4±3.6*			0.06±0.02	5.0±0.0	33.3±28.9
SP males	31.1±2.3 (5)	33.5±12.3	0.24±0.22	0.06±0.02		5.2±0.5	25.0±17.7
LP females	30.1±1.6 (4)	36.0±6.6			0.21±0.03	1.0±0	0±0
LP males	32.8±3.9 (4)	46.3±5.4*	0.95±0.10	0.25±0.06		1.0±0	0±0
Statistics	group F 1,31 = 7.83 p<0.01		T7 = 6.49	T6 = 5.92	T5 = 8.16	H1 = 14.22	H1 = 8.52
	Sex F1,31 = 6.19 p = 0.02		p = 0.001	p = 0.01	p = 0.001	p<0.0001	p = 0.004
	Initial vs Final F1,31 = 2.21 p = 0.15
	Group × Sex F1,31 = 0.18 p = 0.66
	Group × Initial vs Final F1,31 = 8.34 p<0.01
	Sex × Initial vs Final F1,31 = 4.39 p<0.05
	Group × Sex × Initial vs Final F1,31 = 0.15 p = 0.70
	*Indicates final body mass significantly different from initial body mass at P<0.05

Data are means ±1 standard deviation.