Table 3.

Slopes resulting from T_h cooling trials in normoxic (21% O₂) and hypoxic (12,10 and 7% O₂) golden-mantled ground squirrels (GMGS) and Columbian ground squirrels (CGS)

	GMGS		CGS
	21% O2	7% O2	21% O2	12% O2	10% O2	7% O2
	−12.1 ± 1.9	−1.58 ± 0.71‡	−6.01 ± 1.51	−2.70 ± 0.78‡	−2.03 ± 0.42‡	−1.10 ± 0.52‡
	−9.64 ± 1.86	−0.954 ± 0.331‡	−4.62 ± 0.84	−2.46 ± 0.86‡	−1.79 ± 0.31‡	−0.986 ± 0.40‡
fH	−21.6 ± 15.3	−1.38 ± 1.99*	−20.4 ± 2.80	−9.90 ± 3.96‡	−7.70 ± 4.46‡	−0.932 ± 3.15‡
∫EMG	−81.0 ± 45.7	−19.0 ± 22.0*	−32.4 ± 23.2	−12.0 ± 12.0†	−11.9 ± 9.3†	−4.12 ± 5.70†
VTI	−1.62 ± 0.76	−0.132 ± 0.342†	−0.566 ± 0.604	−0.148 ± 0.303	0.126 ± 0.694	−0.504 ± 0.259
fR	1.47 ± 9.62	−3.70 ± 1.60	−5.48 ± 4.76	−4.58 ± 3.99	−5.29 ± 1.41	−1.64 ± 1.67*
	−331 ± 85	−90.0 ± 56.3‡	−111 ± 61.2	−69.9 ± 78.9	−63.2 ± 56.9	−64.2 ± 39.4

All values are mean ±s.d., expressed in units °C⁻¹ (i.e. per change in T_h) – negative values indicate that cooling T_h caused that parameter to rise.

^*Significantly different from normoxic values (P < 0.05).

^†Significantly different from normoxic values (P < 0.01).

^‡Significantly different from normoxic values (P < 0.001).