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Tropical Tropical Rainforests Rainforests By Anna McCarson By Anna McCarson

Author: wyatt-castro

Post on 30-Dec-2015




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Tropical Rainforests. By Anna McCarson. Characteristics. Tree branches start growing at 100 ft Heavy rainfall High humidity Warm temperature Large variety of plants and animals Unique adaptations Provide many resources to humans In danger. Location. Typically on or around the equator - PowerPoint PPT Presentation


  • Tropical RainforestsBy Anna McCarson

  • CharacteristicsTree branches start growing at 100 ftHeavy rainfallHigh humidityWarm temperatureLarge variety of plants and animalsUnique adaptationsProvide many resources to humansIn danger

  • LocationTypically on or around the equatorIn places with year-round warmthRainforests cover less than 6% of Earths land surface

  • ClimateTemperature between 68F and 93FRains year-roundAnnual rainfall between 125 cm and 660 cmAverage humidity levels between 77% and 88%Distinct wet and dry seasons

  • StructureFour main layers: forest floor, understory, canopy (also known as upper canopy), and emergent Forest floor- very dark, little plant growth; decay takes place quicklyUnderstory- many animals, high level of insects, little sunlightUpper canopy- abundant food, many animals, shelters layers underneath, many plantsEmergent- large amount of sunlight, tall trees emerge

  • BiodiversityMore than half of the worlds animal species and 4/5 of its plant species live in tropical rainforestsLarge abundance of mammals, reptiles, birds, insects, and plantsEach species plays a role in keeping the rainforest healthy (flying foxes, insects pollinate flowers)

  • Plant LifePitcher plantOrchidLiana (climbing vine)Bromeliad (flower in the pineapple family)Strangler (member of the fig family)- it strangles a tree until the tree diesEpiphytes (air plants)- grow on other treesSaprophytes- decomposers

  • Plant AdaptationsOily coatingsDrip tips Grooved leavesTurning leaf stalks- turn towards the sun for maximum lightStilt roots- extra support in wet soilLeaf size depends on elevation

  • Animal LifeScarlet macawToucanRed-eyed tree frogPoison dart frog (also known as Poison arrow frog)Capuchin monkeySpider monkeyAnteaterCapybaraJaguarKinkajouAnaconda

  • Animal AdaptationsCoral snake- special jaw helps it capture prey in mid-airStriped possum and lemur aye-aye- long finger on foreleg to pick insects off of treesJaguar- able to capture prey on ground and carry it up a tree to eatEagle owl- powerful claws to catch preyGreen basilisk- special feet enable them to run on water

  • Insect LifeLeafcutter antArmy antBlue morpho butterflyPostman butterflyRhinoceros beetleCentipedeSnailsSlugs

  • Predator vs. PreyJaguar- fish, rodents, other small mammalsAnaconda- birds, fish, rodents, other reptilesRed-eyed tree frog, poison dart frog- crickets, other small insectsHowler monkey- insectsGreen basilisk- insects, small rodents

  • ResourcesOxygenWoodMedicineFruit/agricultureFibers (carpets)Oils (soaps, other cosmetics)Gums/resins (rubber products, paint)

  • ThreatsGlobal warmingPollutionLoggingExpanded housing/living spaces for humansLimited abiotic factors SpaceWaterAir

  • PreservationNon-profit organizationsGovernment programsEducational programsSanctuariesCampaignsLaws/restrictionsTours to raise awareness

  • Fun FactsTropical rainforests produce 40% of the worlds oxygenAbout one-fourth of our medicines come from tropical rainforests Over 1400 tropical plants could be potential cures for cancerThe worlds rainforests are being destroyed at a rate of 6000 acres (4000 football fields)/hour