Description Usage Arguments Value References Examples
This function determines the extent to which organisms exploit their thermal environment (indexed by Ex) following Christian and Weavers (1996). Ex is given by the amount of time when field body temperatures (Tb) are within the set-point range, relative to the total amount of time during which this could have been possible as indicated by operative temperatures (Te). The higher the Ex value, the more an organism exploits its thermal environment when the environment is permissive. The user-supplied vectors containing Te and Tb data are assumed to use the same time unit.
1 | calculate_Ex(te, tb, tset_low, tset_up)
|
te |
A vector containing operative temperatures. These data should be in the same time unit as the tb data. |
tb |
A vector containing body temperature measurements. |
tset_low |
Lower boundary of a species or population set-point range that was determined through thermal preference trials in a temperature gradient. This may be a named double vector containing the lower boundary value, or simply the value itself. |
tset_up |
Upper boundary of the set-point range. |
Ex index, indicating thermal exploitation of the environment during a user-determined period of time.
Christian, K. A., & Weavers, B. W. (1996). Thermoregulation of monitor lizards in Australia: an evaluation of methods in thermal biology. Ecological monographs, 66(2), 139-157.
1 2 3 |
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.