Factors affecting biodiversity

Question 1

What are the factors affecting biodiversity?

Answer 1

• Human population Growth
• agriculture (monoculture)
• climate change

Question 2

How are humans reducing biodiversity?

Answer 2

• Destruction of habitats - e.g. deforestation
• separating populations e.g. Roads
• populations cannot interbreed
• unsustainable hunting/fishing e.g. over finishing of cod
• pollution

Question 3

what does human reducing biodiversity can a decrease in?

Answer 3

there is a decrease in:
habitat biodiversity
- species biodiversity
- genetic biodiversity

Question 4

What is monoculture?

Answer 4

• Cultivation of only one type of crop

Question 5

How is monoculture reducing biodiversity?

Answer 5

• more land is needed to feed growing population
• increased habitat destruction

Question 6

what does monoculture leave a decrease in?

Answer 6

decrease in:
- habitat biodiversity
- species biodiversity
- genetic biodiversity

Question 7

what does continous monoculture cause?

Answer 7

• causes soil depletion
• reduces other plant species ability to survive

Question 8

how does climate change reduce biodiversity?

Answer 8

• Humans burn carbon dioxide
• CO2 is a greenhosue gas
• weather patterns will change
• change the abundance and distribution of species
• some will become extinct

Question 9

what does climate change cause a decrease in?

Answer 9

• habitat biodiversity
• species biodiversity
• genetic biodiversity