Ecosystems

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Ecosystems

  1. 1. Second and final topic within Physical Geography Global Challenge unit: Ecosystems Selected topic focus: Marine Ecosystems Key questions: 1. What is a biome? 2. What is the global distribution of biomes? 3. What factors affect the global distribution of world biomes? 4. How does primary productivity differ in the major biomes?
  2. 2. An ecosystem is a community of plants and animals which interact with the environment and each other. The world is dependent on the goods and services that ecosystems provide. A biome is a global-scale ecosystem. There are eight main types of biome:
  3. 3. <ul><li>Tundra </li></ul>2. Coniferous forest (boreal) 3. Temperate deciduous forest 4. Temperate grassland
  4. 4. 8. Tropical rainforest 7. Savanna grassland 5. Mediterranean (scrub with some trees) 6. Desert
  5. 5. What is the value of ecosystems?
  6. 6. p284
  7. 7. Page 36. Task: Using the diagram describe the ecosystem variables that change from equator to pole.
  8. 8. Page 37, Q1 a and b

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