Threats to biodiversity

Question 1

Exploitation

Answer 1

The harvesting of natural resources for food and raw materials to make best use of it

Question 2

Over-exploitation

Answer 2

When resources are removed from an environment at a rate that cannot be sustained - occurs when the resources are harvested at a rate greater than the species reproductive rate

Question 3

How to avoid over exploitation

Answer 3

Ensure there are enough species members remaining to reproduce and continue the species

Question 4

Population recovery

Answer 4

If over exploitation is haled soon enough population may be able to recover, however population is too low the population may not be able to recover.

Question 5

Bottleneck effect

Answer 5

When only small populations survive over exploitation genetic diversity tends to be low, this means the entire species is susceptible to negative change in the environmental conditions

Question 6

Exception of bottleneck effect

Answer 6

Some species naturally have low genetic diversity yet remain viable - like wandering albatross for example