1.0 



0.8 



C 



!Z 



0.6 



o 



>. 



1 0.4 

 (0 



n 

 o 



0.2 



0.0 



No budworm 



Annual budworm defoliation 



1 1 1 — 



5 10 15 



Years Since Last Disturbance 



20 



Figure 8 — The effect of western spruce budworm and time on 

 predicted probability of stocking for a Pseudotsuga menziesii/ 

 Physocarpus malvaceus habitat type. 



1.0 H 



0.8 



0> 

 c 



O 0.6 



O 



= 0.4 



Si 



CO 



n 

 o 



0.2 



0.0- 



Optimum aspect 



45 90 135 180 225 



Aspect (degrees) 



270 



315 



360 



Figure 9 — Illustration of optimum aspect and amplitude for the 

 probability of stocking. 



17 



