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The rainforest ecosystem

The rainforest ecosystem. Where do rainforests occur?. Why is the rainforest both an ecosystem and a biome?. A biome is An ecosystem is The rainforest is both because. What are the two main factors that affect where different biomes occur?

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The rainforest ecosystem

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  1. The rainforest ecosystem

  2. Where do rainforests occur?

  3. Why is the rainforest both an ecosystem and a biome? A biome is An ecosystem is The rainforest is both because

  4. What are the two main factors that affect where different biomes occur? What climatic conditions do rainforests need to grow?

  5. Productivity in the rainforest What is the climate of the rainforest? What causes it to rain so much?

  6. Which area of the world has the sun overhead?

  7. Which area (Africa or Europe) did we say had the sun directly overhead? Which area has the sun spreading out over a larger area? Which area is hotter then?

  8. Why does it rain so much in the rainforest?

  9. So, based on what you have just found out, what causes the lush vegetation in the rainforest?

  10. How do we measure biomass? To construct pyramids of biomass: need biomass. To get it: Measure mass of one organism/average of a few organisms x total of all organisms present Biomass = total energy within a living being So, biomass = mass of organisms – water content (water contains no energy and is not organic) Weigh organisms, put in hot oven, reweigh etc 2 readings the same = finish Measured: / unit area e.g. /m2 Can do flora or fauna Equipment: quadrat, container, oven, weighing scales.

  11. Why do these four layers grow up?

  12. Does a forest with four layers have more or fewer habitats than a forest with two layers? • If there are more habitats does that mean there are more niches? • If there are more niches what does that mean about species diversity?

  13. Why is a rainforest so stable?

  14. More than 50% of the world's plant and animal species inhabit the 7% of the world that is covered in rainforest.A four-square mile patch of rainforest contains as many as 1500 species of flowering plants, 750 species of trees, 125 species of mammals, 400 species of birds, 100 species of reptiles, 60 species of amphibians, and 150 species of butterflies. • Using what you now know, explain why the rainforest has such a high species diversity.

  15. ? is the total amount of CO2 that is fixed by the plant in photosynthesis. ? is the net amount of primary production after the costs of plant respiration are included. Therefore,NPP = GPP ? R

  16. Which ecosystems have the greatest gross primary productivity?

  17. What does this bar graph show about NPP?

  18. What is primary productivity?

  19. What is secondary productivity?

  20. What role do the producers (plants) have in this ecosystem?What role do the decomposers have?What role do the consumers have?

  21. What would happen to the food web if poachers killed ocelots?

  22. How do we measure the number in a population? Lincoln Index Marks animals caught Releases them Catches animals again Count marked To estimate population

  23. How do we measure species diversity?

  24. Is this the water cycle or the nutrient cycle?

  25. Where are nutrients stored in this cycle? Where do nutrients come from? How can nutrients be lost from this system?

  26. Why is there so much photosynthesis in the rainforest?

  27. What are the inputs and outputs in photosynthesis and respiration?

  28. What are the energy transformations in photosynthesis and respiration?What happens to light energy?

  29. Photosynthesis and respiration: How is a tree a system? Is it open, closed or isolated? Why?

  30. Where does the world’s energy come from and where does it go to?

  31. How is energy transferred and transformed as it flows through the rainforest ecosystem?

  32. How is carbon transferred and transformed as it moves around the rainforest ecosystem?

  33. How is nitrogen moved around the rainforest ecosystem?

  34. How does the water cycle work?

  35. Water cycle • Which of the processes are transfers and which are transformations?

  36. What would happen if the rain became more acidic? How would the productivity of the forest change?

  37. Water cycle • What happens to the rain that falls in a rainforest? • What will happen in the short term if the trees are cut down? • And in the long term?

  38. .

  39. What is GSP and GNP?

  40. What are the values of GSP and GNP here?

  41. Bibliography Youtube Video- http://www.youtube.com/watch?v=cMojw8InWKQDistribution of trpical rainforest map- http://www.greenwichschools.org/uploaded/faculty/nelyda_miguel/rainforestmap.gifSunlight distribution picture- http://www.bbc.co.uk/schools/gcsebitesize/geography/images/g_me_r_2.gifMiscellanious- http://www.blueplanetbiomes.org/rainforest.htmClimate-http://www.studygs.net/citation/mla.htmPlantlife-http://www.savetherainforest.org/savetherainforest_004.htmTemperature-http://www.blueplanetbiomes.org/rainforest.htmPictures-http://www.kidcyber.com.au/IMAGES/Rafflesialabel.jpghttp://library.thinkquest.org/TQ0310225/graphics/redplant.gifhttp://www.veeriku.tartu.ee/~ppensa/saint-orchid.jpghttp://www.savetherainforest.org/savetherainforest_004.htmhttp://www.abcteach.com/RainforestFacts/plants.htm

  42. Fact: We lose 50 species everyday due to deforestation of tropical forests.Fact: Over 2,000 tropical forest plants have been identified as having anti-cancer properties.Fact: Less than 5 percent of the world's tropical forests are protected.

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