U b
 S500-

 C400-
 C

 E 300-

 1 200-
 E
 0
 d 100- a
 z

 1 T1 ---[-
 0 I I I
 1 2 5

 B
 U
 b
 S6-



 14-
 E
 (n
 O a
 0 a ---



 6
 z
 0- -- ____- -- -- | -- -
 1 2 5
 Plant age (years)


Figure 2-1. Plant age significantly affected both (A) the number of domatia on a plant and
 (B) the number of ant species present. Means and 95% confidence intervals
 are shown, with pairwise differences (calculated with Tukeys HSD) indicated
 with lowercase letters.