ECOSYSTEMS

• Producers

  Convert energy from the environment into sugars
• Consumers


  Get energy from producers
• Decomposers


  Breakdown dead material and put nutrients into soil
• Food chain

  Direct links between producers and consumers forming a single link
• Food web

  Connected web of producers and consumers
• Ecosystem


  An environment made up of biotic and abiotic factors with a complete food web of producers, consumers and decomposers that recycle nutrients
• Biotic

  Living organisms – plants, animals, bacteria
• Abiotic

  Non living factors – water, sunlight, minerals
• Human changes

  • Removing plants
  • Infrastructure
  • Overfishing
• Environmental changes

  • Droughts
  • Wildfires
• Removing trees

  • Removes carbon store
  • Roots not holding soil in place
• Wildfire

  • Destroy trees
  • Destroy habitats
  • Fertilises soil