Microbial communities don't follow Darwinism?

Mark W LeChevallier Mark_W_LeChevallier at amwater.com
Mon Jan 20 12:27:27 EST 1997

It is imporant to consider populations of cell, not individuals.  Communities 
of cells (biofilms) exist to ensure their propogation, (survive stresses) , 
provide nutrient syntropy, exclude cells that don't belong, and create and 
environment where certain members can thrive.  To a large extent they are a lot 
more civil than people!

It may be that the competition within a biofilm is not nearly so important as 
competition between those that are NOT in the biofilm.  In a real sense, a 
community can live in harmony, and an important function is to keep out the 

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