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Exam 2, Chapter 5: Ecosystems, Chapter 7: The Value, Use and Restoration…

- - - - Productivity reduced
        
        Reduction in nutrients and biomass
        
        Biodiversity reduced
        
        Soil loss and erosion increased
        
        Alters hydrology
        
        CO2 sequestration lost
- - - - Habitat/Ecosystem destruction- mining
        
        Pollution- GCC
        
        Over exploitation - fishing, hunting, poaching
        
        Invasive species
    - - Accidental
      - Deliberate
      - Gradual
- - - - Land ownership by wealthy -> needs reform
      - Intensifying cultivation -> small farms cannot support families
      - Opening up new lands-> destroys ecosystems
      - Resource overexploitation
      - Illicit activities
      - Migration
      - I= PAT
        
        Population (P), affluence and consumption paterns (A), and technology in society (T)
- - - - Viable populations formerly inhabiting ecosystem must still exist
        
        Must not be upset by foreign species that we cannot remove