Over Two Decades Ago in the People's Republic of China,it

question 30

Essay

Over two decades ago in the People's Republic of China,it was noticed that songbirds were eating rice and millet drying on the grain floors.Since there were large numbers of people to feed,and the population was very near to carrying capacity,it was proposed that the songbird population should be reduced in order to preserve more grain.However,the songbirds also ate a larger number of insects that fed on the rice and millet when it was young.Draw a food web including the above items,indicating energy flow in the direction of the arrows,and representing the general proportion of energy consumed by the breadth of each arrow.State briefly why this decision was disastrous.

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