NEETBotanyBiodiversity and its Conservation
Read the following statements regarding the major causes of biodiversity loss and choose the incorrect statement.
Options
- AThe recent illegal introduction of the African catfish (Clarias gariepinus) for aquaculture purposes is posing
- BThe introduction of the Nile perch into Lake Victoria in east Africa led eventually to the extinction of more
- CInvasive weed species like carrot grass (Parthenium), Lantana and water hyacinth (Eichhornia) cause environmen
- DThe extinction of the Passenger pigeon and Steller's sea cow in the last 500 years was primarily driven by ali
Correct answer
D. The extinction of the Passenger pigeon and Steller's sea cow in the last 500 years was primarily driven by ali
Step-by-step solution
The 'Evil Quartet' describes the four major causes of biodiversity loss: habitat loss and fragmentation, over-exploitation, alien species invasions, and co-extinctions. Statements 1, 2, and 3 correctly describe examples of alien species invasions. The introduction of the Nile perch caused the extinction of cichlid fish in Lake Victoria. Invasive weeds like Parthenium, Lantana, and Eichhornia pose threats to native species. The illegal introduction of the African catfish (Clarias gariepinus) threatens indigenous cat