Why is the size of the producer section larger than the tertiary section?

by Rebecca Rae

ecology

Answers for Why is the size of the producer section larger than the tertiary section?

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Size of Levels in the Ecosystem
by: Anonymous

The size of the producer section MUST be larger than the tertiary section because only 10% of the energy from one level passes on to the next. So, for a wolf who weighs 100 pounds (who's in the tertiary section) to get enough energy, it would have to eat 1,000 pounds of bunny rabits to satisfy itself. Those bunnies would have had to have eaten 10,000 pounds of carrots, also, so that they would have enough energy to be able to survive. So for just one wolf to survive, there would have to be 11,000 pounds of food from lower sources to be able to keep it alive.

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