Data from: Heat tolerance in ectotherms scales predictably with body size

This study analyses how heat stress varies with body size in ectothermic
organisms. The analytical approach is based on thermal death time (TDT)
curves, which take into consideration both the intensity and the duration
of a thermal stress, and result in a linear relationship between
temperature and the logarithm of time. We analyzed two separate
heat tolerance datasets measured in mollusk, arthropod, fish, amphibian
and reptile species, covering nearly 9 orders of magnitude in size.
Datasets ware intrinsically different but ultimately convey the same type
of information on thermal tolerance. The first dataset comprised
individual measurements of heat stress (i.e., data points expressed in
temperature and time coordinates) whereas the second dataset described the
intercept and slope of TDT curves. In both cases, smaller organisms
exhibited a higher tolerance to an acute heat stress than larger ones, but
their tolerance declined faster in time.We then combined the results from
our scaling analyses with geographic information to quantify
thermal safety margins standardized by mass and time.