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Deforestation            &Deforestation in Malaysia Malaysia Bat Education Adventure      Texas Tech University       Dr. ...
Deforestation► Deforestation  is  defined as the loss of  forests that occurs  when people cut down  trees.
Why do people cut down trees?Use wood for building
Why do people cut down trees?               ► Use   wood for fuel
Why do people cut down trees?               ► Toclear land for                farming
Why do people cut down trees?► Small farms to feed families   Often formed by “slash    and burn”     ► Slash   -Cut down...
Why do people cut down trees?                      ► Plantations                         Clear large areas to            ...
Why do people cut down trees?► Toclear land for grazing
Why do people cut down trees?► Toclear land for building
Reasons for Deforestation   What is the major cause of deforestation?
Amount of Deforestation Has        Increased Over Time► Why?► Better   tools   From stone axes to    chainsaws
Amount of Deforestation Has        Increased Over Time► Why?► More   People   More people to feed    means we need more  ...
Where is Most Deforestation        Occurring?
Where is Most Deforestation        Occurring? Which country has the highest rate of deforestation?
Where is Most Deforestation               Occurring?► Today,  most deforestation is occurring in tropical  regions.► Tropi...
Results of Deforestation► Clear   cutting- cutting down all trees in an area
Clear Cutting► Loss   of all habitat for wildlife   If animals have no place to live then it is    possible that they wil...
The number of birds in Brazil is predicted to decrease in the future asthe amount of deforestation increases.
Habitat Loss and Extinction► Many species on the earth are at risk of extinction caused by deforestation
Clear Cutting► Soil   erosion    Without plant roots to     hold the soil in place     soil particles are easily     erod...
Clear Cutting       ► Soil erosion causes         siltation           Eroded soil particles            end up in rivers  ...
Deforestation in Malaysia
Deforestation in Malaysia► Tropical Rainforests are found in Malaysia► Rates of deforestation in Malaysia are some of the ...
Deforestation in Malaysia
Logs are transported by floating       them in the river                ► These  logs can                  sometimes escap...
Reasons for Deforestation in                Malaysia► Trees   are cut in Malaysia for     Lumber     Fuel     To clear ...
Oil Palm Plantations
Forest cut to plant oil palm        plantation
Oil Palm    ► Thefruits of oil palm     are used to produce oil       Used in cooking       Used as fuel           ► Pal...
Oil Palm Plantations in Malaysia► Deforestation   to clear  land for oil palm  plantations   Habitat loss   Erosion
The amount of undisturbed foresthas been decreasing rapidly in the    last sixty years in Borneo                          ...
Habitat Loss and Extinction in          Malaysia               ► The Four Most                 Endagered Terrestrial      ...
Deforestation in West Texas?► Today  we think of deforestation as being a  problem that is occurring in the tropical  regi...
Deforestation in West Texas► Sand   shinnery oak   Quercus havardii   Short (1 – 1.5 meters    tall)   Spread by underg...
Deforestation in West Texas              ►   Before the white settlers                  reached the high plains, 5        ...
Deforestation in West Texas► Todaymost of the sand shinnery oak has been destroyed   Removed by    ►chopping down the tre...
Deforestation in West Texas              ► Sand                   shinnery oak was               removed                 ...
Deforestation in West Texas► Deforestation              has caused the loss of what once was the largest oak forest in the...
Habitat loss has harmed some of the species that lived in the shin oak               habitat  Lesser Prairie Chicken
Deforestation► Do   you   Live in a house built with wood?   Burn wood in your fireplace?   Eat food grown on farms?  ...
Deforestation► If you answered yes to any of these  questions then you have probably benefited  from the results of defore...
Deforestation► Are   you sad when     Trees are cut?     When species go extinct?     The soil washes away?     When r...
Deforestation► Ifyou answered yes to any of these  questions then you have probably been  harmed by deforestation.
Is deforestation good or bad?► This   is a complex question     Deforestation both helps and harms us     Different peop...
How do you think deforestation in     Malaysia affects bats?
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Deforestation

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Transcript of "Deforestation"

  1. 1. Deforestation &Deforestation in Malaysia Malaysia Bat Education Adventure Texas Tech University Dr. Mark A. McGinley
  2. 2. Deforestation► Deforestation is defined as the loss of forests that occurs when people cut down trees.
  3. 3. Why do people cut down trees?Use wood for building
  4. 4. Why do people cut down trees? ► Use wood for fuel
  5. 5. Why do people cut down trees? ► Toclear land for farming
  6. 6. Why do people cut down trees?► Small farms to feed families  Often formed by “slash and burn” ► Slash -Cut down the trees ► Burn the trees to clear the land for farming  Generally cut down only small areas at a time
  7. 7. Why do people cut down trees? ► Plantations  Clear large areas to plant crops Banana Plantation
  8. 8. Why do people cut down trees?► Toclear land for grazing
  9. 9. Why do people cut down trees?► Toclear land for building
  10. 10. Reasons for Deforestation What is the major cause of deforestation?
  11. 11. Amount of Deforestation Has Increased Over Time► Why?► Better tools  From stone axes to chainsaws
  12. 12. Amount of Deforestation Has Increased Over Time► Why?► More People  More people to feed means we need more and larger farms  So people cut down more trees
  13. 13. Where is Most Deforestation Occurring?
  14. 14. Where is Most Deforestation Occurring? Which country has the highest rate of deforestation?
  15. 15. Where is Most Deforestation Occurring?► Today, most deforestation is occurring in tropical regions.► Tropical rainforests are found in tropical rainforests  Most deforestation in tropical rainforests
  16. 16. Results of Deforestation► Clear cutting- cutting down all trees in an area
  17. 17. Clear Cutting► Loss of all habitat for wildlife  If animals have no place to live then it is possible that they will all die► Habitat loss is the leading cause of species becoming extinct.
  18. 18. The number of birds in Brazil is predicted to decrease in the future asthe amount of deforestation increases.
  19. 19. Habitat Loss and Extinction► Many species on the earth are at risk of extinction caused by deforestation
  20. 20. Clear Cutting► Soil erosion  Without plant roots to hold the soil in place soil particles are easily eroded away by water when it rains.  When soil is lost the soil is not as good for farming.
  21. 21. Clear Cutting ► Soil erosion causes siltation  Eroded soil particles end up in rivers ► Rivers become muddy  Harms the animals and plants that live in the river  Rivers carry eroded particles into the ocean ► Siltcan damage coral reefs
  22. 22. Deforestation in Malaysia
  23. 23. Deforestation in Malaysia► Tropical Rainforests are found in Malaysia► Rates of deforestation in Malaysia are some of the highest in the world
  24. 24. Deforestation in Malaysia
  25. 25. Logs are transported by floating them in the river ► These logs can sometimes escape to the sea and damage coral reefs when they are washed ashore by storms.
  26. 26. Reasons for Deforestation in Malaysia► Trees are cut in Malaysia for  Lumber  Fuel  To clear land for agriculture
  27. 27. Oil Palm Plantations
  28. 28. Forest cut to plant oil palm plantation
  29. 29. Oil Palm ► Thefruits of oil palm are used to produce oil  Used in cooking  Used as fuel ► Palm oil can be added to gasoline and used to drive your car  biofuel
  30. 30. Oil Palm Plantations in Malaysia► Deforestation to clear land for oil palm plantations  Habitat loss  Erosion
  31. 31. The amount of undisturbed foresthas been decreasing rapidly in the last sixty years in Borneo The part of the map shaded in green contains undamaged forest
  32. 32. Habitat Loss and Extinction in Malaysia ► The Four Most Endagered Terrestrial Species in Malaysia  Tiger  Asian rhinoceros  Asian elephant  Orangutan ► Allare at risk because of habitat loss caused by deforestation
  33. 33. Deforestation in West Texas?► Today we think of deforestation as being a problem that is occurring in the tropical regions.► Do you think that deforestation has occurred in West Texas?
  34. 34. Deforestation in West Texas► Sand shinnery oak  Quercus havardii  Short (1 – 1.5 meters tall)  Spread by underground branches ► Individuals plants can be 100m x 70m in size (that’s one of the largest individual plants in the world!!)
  35. 35. Deforestation in West Texas ► Before the white settlers reached the high plains, 5 – 7 million acres of sand shinnery oak was spread across the high plains of New Mexico, Texas, and Oklahoma ► It was the largest oak forest in area in the United States ► (About the size of the state of Maryland)
  36. 36. Deforestation in West Texas► Todaymost of the sand shinnery oak has been destroyed  Removed by ►chopping down the trees and digging up the roots ►Poisoning with herbicide  poisons that kill plants
  37. 37. Deforestation in West Texas ► Sand shinnery oak was removed  To grow pasture ► Cattle don’t like to eat the oak leaves so they cut down the trees and plant grass instead  To grow cotton
  38. 38. Deforestation in West Texas► Deforestation has caused the loss of what once was the largest oak forest in the US!!► Who knew that deforestation was important on the prairie in West Texas!!
  39. 39. Habitat loss has harmed some of the species that lived in the shin oak habitat Lesser Prairie Chicken
  40. 40. Deforestation► Do you  Live in a house built with wood?  Burn wood in your fireplace?  Eat food grown on farms?  Eat food or drink milk that comes from pastures?  Ride in a car powered by gasoline?
  41. 41. Deforestation► If you answered yes to any of these questions then you have probably benefited from the results of deforestation
  42. 42. Deforestation► Are you sad when  Trees are cut?  When species go extinct?  The soil washes away?  When rivers become full of silt?  When fish die in silty rivers?  When coral reefs are destroyed by silt
  43. 43. Deforestation► Ifyou answered yes to any of these questions then you have probably been harmed by deforestation.
  44. 44. Is deforestation good or bad?► This is a complex question  Deforestation both helps and harms us  Different people have different opinions about this ►Who might favor deforestation? ►Who might be against deforestation?
  45. 45. How do you think deforestation in Malaysia affects bats?
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