The Evolution of Communities 



219 



Bees that are Social Parasites 



Their Bee Hosts 



** Anthophorinae and Apinae are subfamilies of Apidae. 



Fig. 93. Genera and families of bees which are social parasites and the 

 genera and families of their known host bees. (Adapted from Linsley.j 



intricate in ecological relationships than their primeval prototypes. 

 Basically the change in communities is simply an expression of the 

 dynamic nature of their constituents. Species are dynamic systems 

 of populations, changing with time. Because the community is an 



