2.00

1.95

1.90

1.85

1.80

1.75

1.70

1.65


1.60 L
 3.2


2.00


1.95

1.90

1.85

1.80

1.75

1.70

1.65


 3.4 3.6 3.8 4.0 4.2

 log Stem toughness (Jm 2)



C r2 =0.15P= 0.33
 Slope = 0.31
 A











 0


2.0 2.1 2.2 2.3 2.4 2.5

 log Lamina toughness (Jm-2)


-0.8 -0.7 -0.6 -0.5 -0.4 -0.3

 log Stem density (g cm -3)


-0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -

 log Leaf density (g cm -3)


Figure 1-6. Log-log relationships between some biomechanical properties measured at
 6 mos after first leaf expansion (T2), and % mean survival in shade for
 seedlings of eight tree species. A and B refer to stem traits, and C and D to
 leaf traits. Each point represents a species mean; symbols as in Figure 1-3.


A r 2= 0.56P= 0.54
 Slope = 0.28





 V
 rc


B r2 = 0.78 P= 0.004
 Slope = 0.58



 A



 V


 *


D r2 = 0.90 P< 0.001
 Slope = 0.67


* /