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Tropical rainforest
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Tropical rainforest


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  • 2. • within the latitudes 28 degrees north or south of the equator (in the equatorial zone between the Tropic of Cancer and Tropic of Capricorn).• An average of 50 to 260 inches (125 to 660 cm.) of rain falls yearly.• Temperature-higher than 93 °F (34 °C) or drops below 68 °F (20 °C)• Humidity- between 77 and 88%;
  • 3. • Covered less than 6% of the Earth’s land surface• 50% of animals and plants live• Produce 40% of Earth’s oxygen• Two-thirds of all flowering plants can be found in rainforests.• A single hectare 42,000 different species of insect, up to 807 trees of 313 species and 1,500 species of higher plants.
  • 4. Major rainforest in the world
  • 5. Types of tropical forest• Lowland equatorial evergreen rain forests• Moist deciduous and semi-evergreen seasonal forests• Montane rain forests• Flooded forests
  • 6. Lowland equatorial evergreen rain forests• forests which receive high rainfall (more than 2000 mm, or 80 inches, annually) throughout the year• Occurs at the belt of the equator
  • 7. Moist deciduous and semi- evergreen seasonal forests• high overall rainfall with a warm summer• wet season and a cooler winter dry season• Some trees shed off their leaves on winter season
  • 8. Montane rain forests• cloud forests• Found in cooler-climate mountain areas• Latitude is between 1500 to 3300 m
  • 9. Flooded forest• Permanently waterlogged swamp forest• Seasonally waterlogged swamp forest• Lower floodplain forest• Middle floodplain forest• Upper floodplain forest• Old floodplain forest• Previous floodplain
  • 10. Layers of Rain Forest
  • 11. Forest floor• Forest Floor – bottom-most layer – receives only 2% of the sunlight – Low vegetation-low sunlight penetration – contains decaying plant, animal matter and fungi – Several species of reptiles, amphibians and insects – Also some large mammals
  • 12. Understory• Lies between the canopy and the forest floor• home to a number of birds, small mammals, insects, reptiles, and predators• about 5% of sunlight breaches the canopy to arrive at the understory causing true understory plants to seldom grow to 3 m (10 feet)• plants have broad leaves
  • 13. Canopy• primary layer of the forest• contains the majority of the largest trees, typically 30–45 m in height• Tall, broad-leaved evergreen trees• Supports rich flora and diverse fauna
  • 14. Emergents• contains a small number of very large trees, called emergents• reaching heights of 45–55 m• few species will grow to 70–80 m tall• unique faunal species inhabit this layer(crowned eagle, king colobus, and large flying fox
  • 15. Abiotic andBiotic factors
  • 16. Abiotic Factors• Temperature• Precipitation• Soil• Humidity
  • 17. Biotic Factors• Plants• Animals
  • 18. Plant Adaptations
  • 19. Animal Adaptation
  • 20. Human ImpactMining and drillingConversion to agriculture landClimate Change
  • 21. Human impact• Deforestation• Urbanization• Pollution• Poaching• Tourism