Probability values (P) of the ANCOVA analyses to test for differences in the Y-intercept and slope of the equations of the three leaf stages in each species (n = 30 per leaf stage in each species). A significant interaction indicates differences in slope; only if the interaction is not significant can differences in the Y-intercept (leaf stage factor) be interpreted.
|Q. pyrenaica||< 0.0001||< 0.0001||< 0.0001|
|Q. faginea||< 0.0001||< 0.0001||0.0106|
|Q. suber||< 0.0001||< 0.0001||< 0.0001|
|Q. ilex||< 0.0001||< 0.0001||0.0009|