Question

Explain, giving one example, how co-extinction is one of the causes of loss of biodiversity. List the three other causes also (without description).

Answer 1

When a species becomes extinct, the plant and animal species associated with it in an obligatory may also become extinct. This is called co-extinction. 

For example, when a host fish species becomes extinct, its unique assemblage of parasites also becomes extinct.

The three other causes are: 

i. Habitat loss and fragmentation 

ii. Over-exploitation

iii. Alien species invasion.