Rainforest Importance

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Rainforest Importance

  1. 1. The Tropical Rainforest Biome: Goods and Services
  2. 3. Rainforest <ul><li>A terrestrial biome found near the equator in areas where rainfall is abundant (more than 250 cm/year) and the dry season, if any, is very brief. Forests are very diverse floristically and structurally; trees sometimes reach great heights. Most trees are evergreen; deciduous species, if present, do not all lose their leaves at the same time of year. </li></ul>
  3. 5. Commercial Destruction
  4. 6. Absolute Poverty Deforestation
  5. 7. <ul><li>Rainforests once covered 14% of the earth's land surface; now they cover a mere 6%. </li></ul><ul><li>One and one-half acres of rainforest are lost every second. </li></ul><ul><li>Nearly half of the world's species of plants, animals and microorganisms will be destroyed or severely threatened over the next quarter century due to rainforest deforestation. </li></ul><ul><li>Experts estimates that we are losing 137 plant, animal and insect species every single day due to rainforest deforestation. That equates to 50,000 species a year. </li></ul><ul><li>25% of Western pharmaceuticals are derived from rainforest ingredients, less that 1% of these tropical trees and plants have been tested by scientists. </li></ul>
  6. 8. Location Location of TRF Biodiversity Hotspots
  7. 9. 10km 10km SPECIES: Amphibian Flowering plants Tree Birds Butterfly Reptile Ant 60 1,500 750 400 150 100 100
  8. 10. <ul><li>The Amazon Rainforest has been described as the &quot;Lungs of our Planet&quot; because it provides the essential environmental world service of continuously recycling carbon dioxide into oxygen. More than 20 percent of the world oxygen is produced in the Amazon Rainforest. </li></ul><ul><li>More than half of the world's estimated 10 million species of plants, animals and insects live in the tropical rainforests. </li></ul><ul><li>One-fifth of the world's fresh water is in the Amazon Basin. </li></ul><ul><li>At least 80% of the developed world's diet originated in the tropical rainforest. </li></ul>
  9. 11. <ul><li>Rain forests belong to the tropical wet climate group. The temperature in a rain forest rarely gets higher than 93 °F (34 °C) or drops below 68 °F (20 °C); average humidity is between 77 and 88%; rainfall is often more than 100 inches a year. There is usually a brief season of less rain. In monsoonal areas, there is a real dry season. Almost all rain forests lie near the equator. </li></ul>
  10. 13. TRF Ecosystem Services Supporting Provisioning Regulating Cultural
  11. 15. Food Web- Simple?
  12. 16. Nutrient Cycling
  13. 17. Water Cycling
  14. 18. Discuss: What human actions could disrupt this flow of energy?
  15. 19. Plenary: <ul><li>What has been the most convincing piece of evidence from today’s lesson to show you that the biodiversity of tropical rainforests must be protected? </li></ul>

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