Factors Affecting Biodiversity Flashcards
1
Q
What are the three factors that affect biodiversity?
A
human population growth
agriculture
climate change
2
Q
How does human population growth affect biodiversity?
A
destruction of habitat e.g. deforestation
separating populations e.g. roads - populations cant interbreed
unsustainable hunting / fishing e.g. overfishing of cod
pollution
- all of this decreases in habitat biodiversity,
species biodiversity, and genetic biodiversity
3
Q
How does agriculture affect biodiversity?
A
monoculture - cultivation of only one type of crop
more land is needed to feed growing population - increased habitat destruction
continuous monoculture causes soil depletion - reduces other plant species ability to survive
- decreases - habitat biodiversity, species biodiversity genetic biodiversity
4
Q
How does climate change affect biodiversity?
A
- human burns fossil fuels - co2 is a greenhouse gas
- weather patterns will change - change the abundance and distribution of species
- some will become extinct
- decreases in
- habitat biodiversity
- species biodiversity
- genetic biodiversity