Figure 3. Effect of warming and reduced rainfall on estimates
of g1 for species grouped by their drought
tolerance adaptations into three major groups: i) intolerant (drought
index from 1 to 1.84), ii) moderately tolerant (drought index from 2 to
2.88) and iii) tolerant (drought index from 3 to 4) in accordance with
Niinemets and Valladares (2006) (for details about drought index see
Tables 4 and S1). Panel a show closed canopy (n = 982), and panel
b represents open canopy (n = 1604). Whiskers extend to the
largest or lowest value but no further than 1.5 times of interquartile
range above and below the hinges of the box plot with the median. Any
observations outside this range are denoted as individual points. The
horizontal line inside the box denotes the median of the values.