Table 1.

Physiological key variables of the metabolic states. Mass-specific metabolic rate as $\dot{V}$O₂ (ml h⁻¹ g⁻¹) and mean maximum skin temperature (°C) of bats (n = 12) when resting and euthermic, during micro-torpor and during extended hot torpor.

	euthermia	micro-torpor	extended torpor
mean metabolic rate (ml O2 h−1 g−1)	1.07 ± 0.41	0.24 ± 0.08	0.19 ± 0.06
mean skin temperature (°C)	36.7 ± 1.9	36.2 ± 2.1	38.1 ± 2.6