Table 2

Respiratory characteristics of eastern, coast and star-nosed mole whole blood

36°C

36°C

ΔlogP50/ΔpH4

32°C

40°C

ΔH5(kJ mol-1O2)

Δlog P50/ΔT

PCO2 = 38 mm Hg

PCO2 = 38 mm Hg

PCO2 = 38 mm Hg

PCO2 = 38 mm Hg





pH

P501

Pd2

n503

pH

P50

Pd

n50

P50

n50

P50

n50







Eastern mole

7.36

28.8

21.9

2.76

7.76

14.1

10.1

2.54

-0.78

25.3

2.78

31.0

2.71

-8.3

0.011

Coast mole

7.58

17.7

13.6

2.84

8.48

6.1

4.2

2.44

-0.52

16.9

2.85

19.3

2.82

-1.0

0.008

Star-nosed mole

7.56

22.5

17.1

2.76

8.61

8.0

6.0

2.86

-0.40

17.3

2.95

26.6

2.90

-29.9

0.023


1P50 (mm Hg) = PO2 corresponding to 50% oxygen saturation

2Pd (mm Hg) = P50 × ((n50-1)/(n50+1))1/n50; represents arterial PO2 at which oxygen offloading is maximal [41]

3n50 = Hill coefficient; slope of log (%oxyHb/%deoxyHb) versus log PO2

4CO2-Bohr effect; pH varies by CO2 titration

5Overall heat of oxygenation.

Campbell et al. BMC Evolutionary Biology 2010 10:214   doi:10.1186/1471-2148-10-214

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