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In an ecosystem snakes eat salamanders, and salamanders eat earthworms. How would the ecosystem be affected if a large number of snakes are caught and moved out of the region as a part of a conservation program?

AThere would be a decrease in the number of earthworms.
BThere would be a decrease in the number of salamanders.
CThere would be an increase in the number of earthworms.
DThere would be no change in the number of salamanders or earthworms.

Verified Answer :

AThere would be a decrease in the number of earthworms.

The correct answer is (a) There will a significant decrease in the number of earthworms.

If there is an ecosystem in which a snakes eat salamander, salamanders eat earthworms. If there is a decrease in the number of snakes, then the number of earthworms will also decrease. This will happen because, the  number of salamander will increase as there is no snake to eat them. More salamanders will eat more earthworms and as a result of this the number of earthworms would decrease.

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