Table 1.

Bone morphometry measurements for golden-mantled ground squirrel femur and tibia bones during the summer active season, the hibernation season and following 1 month of inactivity during the summer

	Group	Length (mm)	Mass (mg)	Diameter (mm)	Volume (μl)	Apparent density (gl–1)
Femur	H	32.22±0.23	328.16±7.83	2.67±0.03	279.16±5.70	1.18±0.02
	SA	32.52±0.26	324.63±9.47	2.76±0.03	264.06±6.47	1.23±0.03
	DT	31.98±0.49	352.54±16.67	2.85±0.06*	292.65±25.10	1.17±0.04
Tibia	H	34.77±0.30	247.44±6.45	2.23±0.03	197.83±5.37	1.25±0.02
	SA	34.39±0.24	241.07±5.67	2.29±0.03	190.65±3.46	1.27±0.02
	DT	34.59±0.52	251.13±11.40	2.19±0.06	210.07±8.65**	1.20±0.01

Values are means ± s.e.m. Hibernating animals (H; N=10) were sampled following 8 months of inactivity including ∼3 months of cage restriction and ∼5 months of hibernation, summer active animals (SA; N=10) were sampled immediately after capture from the wild, and 1 month detrained (DT; N=3) animals were sampled after 1 month of cage restriction during the summer active season. ^*Value is statistically different from value for H animals (P<0.05; ANOVA). ^**Value is statistically different from value for SA animals (P<0.05; ANOVA)