Table 2.
Comparative thermodynamics of arousal rates in 4 hibernating mammalian species
| Species | Mass, g | Maximum, ml O2·g−1·hr−1 | Basal, ml O2·g−1·hr−1 | Torpor, ml O2·g−1·hr−1 |
|---|---|---|---|---|
| Tachyglossus aculeatus (40) | 3,900 | 1.4 | 0.15 | 0.02 |
| Marmota marmota (18, 43) | 3,200 | 1.5 | 0.19 | 0.014 |
| Spermophilus parryii (23) | 800 | 2.65 | 0.5 | 0.014 |
| Spermophilus tridecemlineatus (48, 51) | 240 | 4.7 | 0.96 | 0.02 |
Data for species is taken from reference number in parentheses. The maximum metabolic rate for S. tridecemlineatus is derived from the authors' mathematical model.