tropical rainforest gloria larson and kendra sultzer
TRANSCRIPT
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Tropical RainforestTropical Rainforest
Gloria Larson and Kendra Gloria Larson and Kendra SultzerSultzer
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LocationsLocations
Band around equatorBand around equator Solar radiation highest in this area-Solar radiation highest in this area-
affects rainfallaffects rainfall
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VegetationVegetation
4 layers of rainforest: emergent, 4 layers of rainforest: emergent, canopy, understory, forest floorcanopy, understory, forest floor
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Average RainfallAverage Rainfall
Location makes rainforest rainyLocation makes rainforest rainy– Solar radiation leads to evaporation, Solar radiation leads to evaporation,
condensation, raincondensation, rain– 250-450 cm. of rain/year which is about 250-450 cm. of rain/year which is about
8-14 feet/year8-14 feet/year
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Temperature vs. Temperature vs. PrecipitationPrecipitation
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TemperaturesTemperatures
Somewhere around 68°F to 86°F Somewhere around 68°F to 86°F regularlyregularly– But annual change in temperatures is But annual change in temperatures is
much lessmuch less Diurnal patternDiurnal pattern
– Evaporation and condensation during the day Evaporation and condensation during the day promote high change of temperaturepromote high change of temperature
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SunlightSunlight
Canopy format prevents sunlight Canopy format prevents sunlight from reaching lower layersfrom reaching lower layers– Understory and forest floor pretty darkUnderstory and forest floor pretty dark
Plants and animals adapt to lack of sunlightPlants and animals adapt to lack of sunlight
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Soil FertilitySoil Fertility
Soil in rainforest not very fertileSoil in rainforest not very fertile– Nutrients from different sources fall into Nutrients from different sources fall into
soil but then swept away by rainsoil but then swept away by rain– Animals and plants adapt ways to get Animals and plants adapt ways to get
nutrientsnutrients
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Seasonal ChangesSeasonal Changes
Not a big change in temperatureNot a big change in temperature No winterNo winter 2 seasons: rainy and dry2 seasons: rainy and dry
– Differs due to position relative to Differs due to position relative to equatorequator North- rainy = summerNorth- rainy = summer South- rainy = October – AprilSouth- rainy = October – April East – dry = 5-7 monthsEast – dry = 5-7 months West- dry = 1-3 monthsWest- dry = 1-3 months
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Limiting FactorsLimiting Factors
Lack of nutrients- unfertile soilLack of nutrients- unfertile soil Wet environment- climateWet environment- climate Large amount of trees in Large amount of trees in
environmentenvironment Lack of sunlight for lower layersLack of sunlight for lower layers
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Animal AdaptationsAnimal Adaptations
CamouflageCamouflage Locomotion in treesLocomotion in trees Survival in wet environmentSurvival in wet environment NocturnalNocturnal Bright colors for warningBright colors for warning
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AnimalsAnimals
Spider MonkeySpider Monkey
SlothSloth
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AnimalsAnimals
ToucanToucan
Harpy EagleHarpy Eagle
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AnimalsAnimals
AnacondaAnaconda
JaguarJaguar
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AnimalsAnimals
Poison Dart FrogPoison Dart Frog
Dawn BatDawn Bat
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Plant AdaptationsPlant Adaptations
EpiphytesEpiphytes Parasitic plantsParasitic plants Shallow root systemShallow root system
– ButtressesButtresses Drip tips and large leavesDrip tips and large leaves Smooth barkSmooth bark
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PlantsPlants
Epiphytic OrchidEpiphytic Orchid
Strangler FigsStrangler Figs
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PlantsPlants
Lianas (vines)Lianas (vines)
Kapok treeKapok tree
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PlantsPlants
BromeliadsBromeliads
Mangroves (stilt Mangroves (stilt and prop roots)and prop roots)
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PlantsPlants
Bracket FungiBracket Fungi
Jelly FungiJelly Fungi
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Food WebFood WebPlants
(fruits, berries, leaves)
Tapir Monkey
Insect
Sloth
Jaguar
Lizard
Anaconda
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Past Century ChangesPast Century Changes
Only 2.5 million square miles of Only 2.5 million square miles of tropical rainforests left on planettropical rainforests left on planet– Losing 93,000 square miles/yearLosing 93,000 square miles/year– Losing 137 species/day = 50,000 Losing 137 species/day = 50,000
species/yearspecies/year– Indigenous peoples losing their homesIndigenous peoples losing their homes
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Human Contributions to Human Contributions to ChangesChanges
Deforestation = huge problemDeforestation = huge problem– Timber, agricultural purposes, cattle Timber, agricultural purposes, cattle
ranchesranches– Economic hardships in areas of Economic hardships in areas of
rainforestsrainforests Unequal distributions of landUnequal distributions of land
Killing of animals for skinsKilling of animals for skins– Highly prized in Berlin, Paris, TokyoHighly prized in Berlin, Paris, Tokyo
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ConservationConservation
Proposed: Linden-Lovejoy-Phillips PlanProposed: Linden-Lovejoy-Phillips Plan– Divide natural areas into blocks and get Divide natural areas into blocks and get
variety of organizations to supportvariety of organizations to support Big emphasis on protecting the Big emphasis on protecting the
indigenous people and helping them to indigenous people and helping them to preserve their natural homespreserve their natural homes
Various other conservation Various other conservation organizationsorganizations– Adopt-a-RainforestAdopt-a-Rainforest