100 



80. 

 60. 

 40. 

 20. 

 0. 



3 TREES 



100^ 



80. 



60. 

 40- 

 20. 

 0. 



4 ' a 5 TREES 



2/ 



1 LEGEND 



First-year mortolity. 

 Second-year mortalify. 



No trees observed 

 !n ttiis class. 



These trees killed by 

 subsequent beetle attack. 



0-24 25-49 50-59 60-69 70-79 80-89 90-94 95-100 

 Perc entage of crown burned. 



Figure 2 . - -Ponderosa pine mortality by diameter classes and crown injury 

 classes . 



4 



