A2 Geography Ecosystems Revision

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  • Ecosystems
    • Oxford Ragwort was native to Sicily, Italy, and introduced in the UK in 1700.
      • Escaped to the Rural environment in 1720.
    • Tropical Grassland Biome is hot all year round.
      • Controlled by the ITCZ (Inter- tropical Convergence Zone)
        • Convectional Rain
        • The ITCZ forms through intense solar heating.
      • Some plants are  adapted to be poisonous.
    • Soil Moisture BudgetL The combined pattern of rainfall and temperature that leads to a certain amount of water in the soil.
    • A food web shows clear interactions between different organisms.
    • Energy and Nutrients are recyled in food chains.
    • Pioneer species can be Nitrogen fixers.
  • The ITCZ forms through intense solar heating.
  • Each stage of a food chain is called a trophic level.
    • Ecosystems
      • Oxford Ragwort was native to Sicily, Italy, and introduced in the UK in 1700.
        • Escaped to the Rural environment in 1720.
      • Tropical Grassland Biome is hot all year round.
        • Controlled by the ITCZ (Inter- tropical Convergence Zone)
          • Convectional Rain
        • Some plants are  adapted to be poisonous.
      • Soil Moisture BudgetL The combined pattern of rainfall and temperature that leads to a certain amount of water in the soil.
      • A food web shows clear interactions between different organisms.
      • Energy and Nutrients are recyled in food chains.
      • Pioneer species can be Nitrogen fixers.
  • At each trophic level, energy is lost through respiration.
    • Seral Progression begins with pioneer plants.

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