was measured in
mm using a 6 J Forest Pilodyn with a 2 mm diameter pin, in
an east to west direction and without bark (a small section
of bark at 1.3 m above the ground was removed prior to the
PILO readings being taken). Bark thickness at breast height
was measured right after Pilodyn penetration measurement,
but only at the GUAM trial site, at age 5 years. The trait
relative bark thickness (RBK) was calculated as the
proportion of total DBH occupied by the bark, thus
assuming a linear relationship between bark thickness and
DBH that goes through the origin. Survival (SUR) was
determined based on the oldest assessment for each trial:
age 3 years for PRIN, age 5 years for GUAM, and age
6 years for MAYO, CAST, and VALL. The full list of traits
is given in Table 3.
proportion of total DBH occupied by the bark, thus
assuming a linear relationship between bark thickness and
DBH that goes through the origin. Survival (SUR) was
determined based on the oldest assessment for each trial:
age 3 years for PRIN, age 5 years for GUAM, and age
6 years for MAYO, CAST, and VALL. The full list of traits
is given in Table 3.