Population Dynamics microbiology env.pptx

about population

1. Population Dynamics Devendra Mohan Professor and Former Head Civil Engineering Department IIT(BHU) Varanasi-221005(INDIA)

2. Prime factor in population dynamics is the competition for food  Two types of competition for food exist, competition for the same food and use of one organism by another organism for food The microorganisms ability to compete successfully for food under a fixed set of environmental conditions is a function of the metabolic characteristics of the microorganisms. The microorganisms which can process the maximum quantity of food at the maximum rate will predominate.

3. Schematic diagram of primary and secondary bacteria predominance

4. Relative growth of microorganisms in stabilization of liquid organic wastes

5. Bacteria-algae symbiosis Bacteria – Algae relationship