Question

Of the four major causes for the loss of biodiversity (Alien species invasion, habitat loss and fragmentation, over-exploitation and co-extinctions) which according to you is the major cause for the loss of biodiversity? Give reasons in support.

Answer 1

Habitat loss:

• Habitat loss and fragmentation is the major cause of the loss of biodiversity. [1 mark]
• Increase in industrialization and overpopulation has led to cutting trees and destroying many animals' habitat. [1 mark]
• Reduction in land area of tropical rainforests by 8% due to clearing of forests for the cultivation of crops and raising livestock has also led to the destruction of the habitat of millions of species. [1 mark]
• Species like large mammals and birds that require large territories are badly affected due to fragmentation leading to a decline in their population. [1 mark]
• Habitat degradation by pollution also poses a threat to the survival of many species. [1 mark]