-O-=F00D 

 VALUE 



■= MORPHOLOGICAL ---A— = CHEMICAL 



HIGHn 



O 



or 



DEFENSE 



DEFENSE 



L0W J 



<T 8 16 



HOURS AFTER INITIATION OF NEW GROWTH 



Figure 10. A qualitative summary of temporal patterns of 

 herbivore activity, segment food value (N), chemical 

 defense, and morphological defense (% ash). This figure 

 assumes that new growth is initiated at 1600 hr and combines 

 the concentrations of both halimedatrials and 

 halimedatetraacetate into a single amount to generate the 

 chemical defense pattern. 



394 



