3.1| Large-scale ecosystems

• What are biomes?


  Biomes are large-scale ecosystems that have distinctive vegetation. Different regions of the world have different climates and different eco-systems.
• Hot desert-

  -is 15 degrees- 35 degrees north

  -South of the equator

  -Almost no rainfall

  -temperatures are very high in the day and freezing at night e.g the Sahara desert

  -Has cactuses and other plants with evolutionary adaptations to deal with the lack of water
• Grasslands-

  >is usually found between +23.5° and -23.5%deg; latitude.

  > there is a wet and a dry season and as you would expect, the dominant vegetation is grass.

  >There are few trees

  >E.G The American Midwest, the Argentinian pampas and South Africa >Savannah grasslands are found between the tropics.

  >Temperate grasslands are found at higher latitudes.