Within-canopy variation in leaf traits and thermal tolerance
To test whether provenance differences in thermal tolerance and leaf
traits were due to differences in tree height between provenances, a
subset of individuals from the lowland provenance of both C.
australe and H. novo-guineensis were sampled at a mid-canopy
position. There were no substantial differences in any leaf traits, or
thermal tolerance metrics due to vertical canopy position (Supporting
information S8).