Question

In "Rivet popper hypothesis " Paul Ebrlich ,the rivets on the wings represents __________ in ecosystem

• A. key species
• B. Exotic species
• C. Extinct species
• D. Invasive species

Answer 1

Answer: (A)

The Rivet Popper hypothesis given by Paul Ehlrich tries to explain the importance of key species in an ecosystem. The hypothesis compares the ecosystem with an aeroplane and the rivets with the species that are joining the parts of the aeroplane/ecosystem together. If the passengers start taking out the rivets, then initially there will be no issue in flight but later, the aeroplane will not be capable to maintain its flight. Similarly, if the key species are exploited, they would be extinct, which would not harm the ecosystem initially but later, ecosystem will collapse. However, those rivets which are the parts of the wings are more important because they are directly involved with the flight function. These rivets on wings are compared to the key-species of an ecosystem.

Hence, the correct answer is 'Key Species'