GENERALIZED CONTROL WEB FOR A 

 MACROCYSTIS PYRIFERA FOREST 



x- 



Affects Distribution, 

 and Abundance of 



^Y 



Physical/Chemical 



Environment 

 Dispersal 

 Disease 

 (PCDD) 



I 



PCDD 



Predation 

 on Spores 

 and Gametes 



Fi 



Iter-Detritus 

 Feeders 



Predation 

 on Larvae / 



Competition 

 Space 

 Food 



Benthic Algae c 



| Competition 

 Light 

 v ~5 Space 



Nutrients 



Predation 

 on Larvae 



Grazi 



Predation 



Grazers 



- PCDD 



Competition 

 ' Food 



Predators 



-r 

 PCDD 



Competition 

 ^ Food 

 Predation 



PCDD = Physical/Chemical Environment, Dispersal, Disease 

 1 = Inhibition of feeding by presence of fronds 



Figure 13. Generalized control web of factors and interactions affecting the distribu- 

 tion and abundance of organisms in a kelp forest. 



42 



