1. Thermoregulation and Q10 (The Temperature Coefficient)

12. Q10: The Temperature Coefficient

13. How to Calculate Q10 at 10oC Intervals
Video Q10 = rate at higher temperature rate at lower temperature Q10 = 290 =
Temperature oC
Respiratory rate 10
152 20
290

14. How to Calculate Q10 at Different Temperature Intervals
Q10 = k2 (10/t2 – t1) k1
k2 = rate at higher temperature
k1 = rate at lower temperature
t2 = higher temperature
t1 = lower temperature
(usually falls between 2-3, rounded to whole number)

15. Q10 Example k1 115 The heart rate of daphnia at 10o C is 152 bpm.
At 15o C, the heat rate rises to 211 bpm.
Calculate the Q10
Q10 = k2 (10/t2 – t1) = (10/15 – 10) = (1.39)2 = 1.93 k