Ecosystems

• Slapton Ley Reed Beds in Devon, UK are a small scale ecosystem
• Slapton Ley Reed Beds is a freshwater lagoon, seperated from the sea by a shingle barrier
• the lagoon is a site of special scientific interest and a national nature reserve so is protected from over - development
• The reed beds provide a habitat for lots of plants and animals
• Food Chain for Slapton Ley Reed Beds: common reed --> moth larva --> eel --> bittern
• A change in one part of the reeds has an impact on other parts
• Slapton Ley Reed Beds are an independent ecosystem - all the components depend on eachother
• changing one component can have a knock on effect on other components
• Tundra: found in high latitudes (above 60 degrees north and south) in Northern Europe,Canada and Alaska. Winters are very cold,summers are brief and there is little rainfall.