Human influences on ecosystems
- Food supply
- Increasing production
- Machinery
- Fertilisers
- Insecticides
- Herbicides
- Selective breeding
- Crops
- Livestock
- Monocultures
- Efficient
- Pests spread
- Low biodiversity
- Intensive livestock
- High output
- Welfare
- Disease
- Waste
- Increasing production
- Habitat destruction
- Biodiversity
- Number of species in area
- Causes
- Housing and farming
- Resource extraction
- Pollution
- Altered food webs
- Deforestation
- Extinction
- Soil loss
- Flooding
- More CO₂
- Biodiversity
- Pollution
- Sewage and fertiliser
- Nitrates
- Disease microbes
- Eutrophication Supplement
- Algal growth
- Decomposers
- Oxygen falls
- Fish die
- Plastics
- Non-biodegradable
- Blockage
- Entanglement
- Greenhouse gases
- CO₂
- Methane
- Climate change
- Sewage and fertiliser
- Conservation
- Sustainable resources
- Forests
- Fish stocks
- Endangered species
- Habitat loss
- Hunting
- Introduced species
- Conservation methods
- Monitoring
- Education
- Captive breeding
- Seed banks
- Fish and forest methods Supplement
- Quotas
- Closed seasons
- Replanting
- AI and IVF Supplement
- Why conserve Supplement
- Biodiversity
- Nutrient cycling
- Genes
- Low genetic variation Supplement
- Sustainable resources