significance of the food chain

it helps us understand the feeding relationships and the interactions between organisms in any ecosystem.

it also help us to comprehend the energy flow mechanism and the matter flow in the ecosystem and teh pronlem of biological magnification.

methods of studying the food chain:
 many direct and indirect methods are used to study the food chain relationships in the nature. we will discuss about some of them here.
1. gut content analysis:
     it is considrerd the most convenient methods of analysys of the food chain. the               elementary cannal is opened and undigested food materials are read for. in this way the gross reading is made of what fodd habit is followed by the animal and the codd chain relationship is drawn. this is simple and convenient method.


2. use of radioactive isotopes:
    radioactive isotopes such as phosphorus32 are used in food items and then are followed and detected along the food chain by a GM counter is a good method to analyse and read the food chain relationships. this method is accuarate but there is possibility of contamination of environment by these rsdioactive isotopes.

3. precipitaioon test:
   DEMPSTER(1960) used this test to study the pedators of the broom beetle (phytodecta olivacea)

to be contd............