Many species have a direct economical value when harvested
- valuable food source
- collection of drugs e.g. aspirin from willow
- natural predators or pests can act as biological control agents
Many species have an indirect economical value when harvested
- wild insects are responsible for pollinating crops
- some communities preserve water quality, protect soil and break down waste products
- Ecotourism has financial value, drawn from the aesthetic value of living things. It depends on biodiversity.
Preservation is important in protecting areas of land, as yet unused by humans, in their untouched form.
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