The q_ten function calculates any of the five parameters in
the Q10 temperature relationship for physiological or chemical processes.
Q10 describes the ratio by which a physiological or chemical rate changes
with a 10°C increase in temperature.
q_ten(rate1 = NULL, rate2 = NULL, t1 = NULL, t2 = NULL, q10 = NULL)
| rate1 | numeric. The rate at temperature 1 ( |
|---|---|
| rate2 | numeric. The rate at temperature 2 ( |
| t1 | numeric (°C). The lower temperature at which |
| t2 | numeric (°C). The upper temperature at which |
| q10 | numeric (°C). The Q10, the ratio by which a rate changes with a 10°C increase in temperature. |
The function has five inputs, of which four should be entered and
one left NULL. The NULL input is the parameter to be calculated. For
example, two rates (rate1, rate2) determined at two temperatures (t1,
t2) can be used to calculate the q10. Alternatively, a q10 and a rate
at a particular temperature can be used to predict a rate at a different
temperature. See examples.
See also the function Q10 in the
respirometry
package by Matthew Birk, which has additional functionality.
respirometry::Q10
## Determine Q10 from two rates at two known temperatures q_ten(rate1 = 2, rate2 = 3, t1 = 10, t2 = 15, q10 = NULL)#> [1] 2.25## Predict a rate at a higher temperature using a known Q10 q_ten(rate1 = 2, rate2 = NULL, t1 = 10, t2 = 15, q10 = 2.25)#> [1] 3## Predict a rate at a lower temperature using a known Q10 q_ten(rate1 = NULL, rate2 = 3, t1 = 10, t2 = 15, q10 = 2.25)#> [1] 2## Predict the lower temperature at which rate1 will occur ## using a known Q10 q_ten(rate1 = 2, rate2 = 3, t1 = NULL, t2 = 15, q10 = 2.25)#> [1] 10## Predict the upper temperature at which rate2 will occur ## using a known Q10 q_ten(rate1 = 2, rate2 = 3, t1 = 10, t2 = NULL, q10 = 2.25)#> [1] 15