Amazon Basin: River & Rainforest - PowerPoint PPT Presentation

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Amazon Basin: River & Rainforest
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Amazon Basin: River & Rainforest

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  1. Amazon Basin: River & Rainforest

  2. How are these connected?

  3. DIVERSITY, VarietyVastnessExploreExchange

  4. Let’s take a look: The Amazon River Basin

  5. Let’s take a look: The Amazon River Basin

  6. Today’s Geo-Question: How are humans changing the Amazon rainforest? What are the consequences?

  7. Big Picture: The Amazon rainforest is disappearing at an alarming rate. The people that live there can’t agree on what to do about it.

  8. Big Picture: DeforestationThe Amazon is the planet's largest remaining rainforest, filled with more wildlife than anywhere else on Earth. But this majestic rainforest is caught in a destructive pattern of deforestation.

  9. Big Picture: Deforestation The trees of the Amazon are being clear-cut. More than half of the trees are already gone.

  10. How bad is it???

  11. Satellite Image from 1992: Red = dense rainforest

  12. Satellite Image from 2006: Red = dense rainforest

  13. Turn and Talk: DeforestationTalk with your group or partner about the following question: Why do you think so many trees are being cut down these days? Be specific. Think about what could be causing this.

  14. Big Picture: Biodiversity The Amazon rainforest is filled with an estimated quarter of all known land species. That’s right, 25% of the Earth’s known animals are found in the Amazon rainforest.

  15. Biodiversity: The jaguar, the pink river dolphin, the sloth, the world's largest flower, a monkey the size of a toothbrush and a spider the size of a baseball are just a few of the species that we know about - there are many more yet to be discovered.

  16. A Consequence of Clear-cutting:Loss of biodiversity. Rare animals and plants that call the Amazon their home are disappearing along with the trees.

  17. Big Picture: Conflict Animals are losing their habitat at record speed due to something known as “land use conflict.”Land use conflicthappens when different groups living in the same area disagree about what to do with or how to use their natural environment. Often, scarce natural resources drive the conflict.

  18. Before we start a group activity, let’s go over some important terms and concepts: Geoterms • biodiversity • carbon-oxygen cycle • deforestation • sustainable development • tropical rainforest • There will be a quiz on these terms Friday.

  19. Geoterms: Amazon • tropical rainforest:a broadleaf evergreen forest found in wet and hot regions near the equator. • Three Layers of a Rainforest: • Top: “Canopy” (100-165 feet) • Middle: “Lower story” (3-100 feet) • Bottom: “Forest floor” (0-3 feet)

  20. Tropical Rainforest Levels • tropical rainforest

  21. Geoterms: Amazon • biodiversity:the variety of plants and animals living in one area. The term can also mean the great variety of all living things on Earth. • carbon-oxygen cycle:the process by which carbon and oxygen cycle (transfer back and forth) between plants, people and animals, and the environment. Think photosynthesis & respiration.

  22. Geoterms: Amazon • deforestation:removing or “clear-cutting” the trees from a forest. Deforestation is often down to clear land for farming or ranching. • sustainable development:using resources in ways that meet the needs of people today without hurting the ability of future generation to meet their own needs. This means finding ways to use resources without using them up.

  23. Jigsaw: Perspectives on the Amazon • Native Amazonians (indigenous people) • Rubber Tappers • Loggers • Settlers • Cattle Ranchers • Environmentalists • What do these different groups want? What solution would work for them?

  24. Homework...

  25. Caption this photo. What’s he saying or thinking? Be funny and original. Think lolcat. Pick your group’s best to share.

  26. Caption this photo. What’s SHE thinking? Be funny and original. Think lolcat. Pick your group’s best to share.

  27. Makes you think...where are we headed?

  28. Yesterday... • We established the Amazon as an area of unparalleled biodiversity. • We talked about the “land use conflict” occurring in the Amazon basin and looked at varying perspectives on deforestation.

  29. Today’s Geo-Question: How should the resourcesof rainforests be used and preserved? What are the different perspectives on this issue?

  30. Jigsaw: Perspectives on the Amazon • Native Amazonians (indigenous people) • Rubber Tappers • Loggers • Settlers • Cattle Ranchers • Environmentalists • What do these different groups want? What solution would work for them?

  31. But wait, what’s this land use conflict really about?Sustainable Development vs. Deforestation (Unsustainable Development)

  32. Impact of Logging Over Time

  33. Why do loggers even use clear-cutting if it’s so bad???“The most valuable trees are scattered throughout the rainforest. This makes it hard to find and cut just the hardwoods. Instead, loggers clear-cut whole patches of rainforest...Logging companies argue that [this] is the only way they can make money,” (p. 182).

  34. So far, which perspective on the land use conflict do you sympathize with the most?...Loggers, settlers, or cattle ranchers. • Turn and talk with your group. Be ready to share what you think. Be able to explain your opinion using evidence from what we’ve learned so far.

  35. Well, what are some solutions? • With your group, read p. 186-189. The main ideas are already bracketed for you. Stay together. No exceptions. • As you read, you should mark up the text using unravvelstyle strategies or thinking tools. Look for contributing details. Write down your unanswered questions as you go. • When you’re done reading, complete the questions using T.T.Q.A.

  36. What’d we find out?