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ARCTIC TUNDRA: TREELESS, VERY LITTLE RAIN ARCTIC TUNDRA: VERY COLD, LONG WINTERS ARCTIC TUNDRA: SHORT SUMMERS PERMAFROST: BELOW THE TOP FEW INCHES, SOIL REMAINS PERMANENTLY FROZEN ALL YEAR ALPINE TUNDRA: FOUND AT HIGH ELEVATIONS ALL OVER THE WORLD TUNDRA FACTS Location: poles, mountain tops Temperature range: -25 to 5 ° C ( -13 - 41 ° F) Average temperature: -12° C (10 °F) Average precipitation: less than 25 cm/year (< 10 inches) ARCTIC TUNDRA: ADAPTATIONS PLANTS: LOW, DARKCOLORED TO ABSORB HEAT, DEEP ROOTS THICK, HEAVY COATS SMALL EARS TO PREVENT HEAT LOSS, COATS CHANGE COLOR WITH SEASON TAIGA- COLD, SNOWY CONEBEARING EVERGREEN FORESTS TAIGA: SHORT SUMMER, NO PERMAFROST TAIGA FACTS Location: just south of the tundra Average temperature: -5° C (10 °F) Temperature range: -50°C to 20 °C (-58 ° F to 70 °F) Average precipitation: 35 cm – 100 cm/year (14 “ – 40”) TAIGA ADAPTATIONS PINE NEEDLE SHAPE SHEDS SNOW, KEEPS IN WATER LONG LEGS AND WIDE FEET TO GET THROUGH DEEP SNOW SUPERSTRONG JAWS TO EAT FROZEN MEAT TEMPERATE DECIDUOUS FOREST: 4 SEASONS, TREES LOSE THEIR LEAVES IN WINTER Temperate Deciduous Forest Location: North America, Europe, parts of Asia and South America Average temperature: below 0°C to above 25°C (< 32°F to > 78°F) Average Precipitation: 75-150 cm/year (30” – 60”/year) Temperate Deciduous Forest: Adaptations camouflage Trees drop leaves to prevent snow damage & save water migration DESERTS: DRIEST BIOME, BUT NOT LIFELESS DESERTS: USUALLY HOT, CAN BE COLD, Plants are widely spaced with wide, shallow roots to maximize water DESERT FACTS Location: across the globe Temperature Range: can vary from hot to cold. Often hot by day, cold by night Average temperature: 20°C - 25°C (68°F – 78°F) Precipitation: <25 cm/year (<10”/year) may not rain for years Store water DESERT ADAPTATIONS Nocturnal to avoid sun, big ears to shed heat Scales or thick coverings to keep in moisture Tropical rain forest: wettest, most diverse biome Tropical rain forest: filled with life Tropical rain forest: needs lots of Sun energy to support all the organisms Tropical rain forest facts Location: Near the equator in South & Central America, Africa and Asia Climate: almost no temperature change from day to night or season to season Average temperature: 25°C (80°F) Precipitation: 200 - 600 cm/year (this is a HUGE amount: 6.5 ft.- 20 ft. per year!) Tropical Rain Forest Zones Scientists divide the rain forest into 4 zones based on the types of plants and animals that live there Emergents Canopy Understory Forest Floor Life in the tropical rain forest zones forest floor: insects, jaguars, tapirs Understory: above ground but under canopy- many plants, insects, reptiles like snakes Canopy: the upper, leafy part of treesinsects birds, snakes, mammals like sloths and monkeys Emergents: large trees that stick up above the canopy- birds & insects Rain forest soil quality 2 Although TRFs support a huge variety of organisms, the soil of the rain forest contains few nutrients: 1. nutrients are washed out of the soil by rain. 2. so many plants mean nutrients are taken out of the soil as soon as decomposers make them available Human impact on the rain forest 2 Recently, rainforest land has been cleared for farming and logging. Crops quickly use up the few nutrients in the soil, and the farmers must clear more land. The cycle of clearing, farming & more clearing is destroying large areas of TRF habitats. http://www.cnn.com/SPECIALS/2009/pl anet.in.peril/brazil.html TROPICAL RAINFOREST ADAPTATIONS BIRDS HAVE SHORT WING SPANS FOR MORE MANUEVERIBILITY THROUGH TREES LEAVES HAVE POINTED “DRIP TIPS” TO CHANNEL WATER OFF LEAF STRONG CLAWS AND TAILS TO GRASP BRANCHES INSECTS MIMIC LEAF SHAPES TEMPERATE RAIN FOREST: AN ANCIENT, RARE BIOME Temperate rain forests get much of their moisture in the form of fog- rain shadow effect! This is a perfect environment for organisms who don’t like sun These forests are dominated by huge conifer trees- logging is still a huge industry here Temperate rain forest facts Location: New Zealand, southern Chile, and the Pacific Northwest Average temperature: 40–50 °F (5°C – 10°C) Precipitation: 200 - 400 cm/year (this is a HUGE amount, about 6 to 13 ft/year) Temperate rain forest adaptations Tall, wide trees serve as nurse logs to their seedlings after they fall, providing decades of water and nutrients as they slowly decay. Rounded body shapes conserve heat (walaby) Dark colors to blend into forest floor GRASSLANDS: ROLLING, OPEN AREAS WITH FEW TRESS GRASSLANDS: also called prairies, savannas, steppes or pampas Most grasslands have a large, dominant grazing animal vicuna bison kangaroo yak wildebeest Grasslands facts Location: world-wide, tropical & temperate areas Climate: often have a dry season & wet season temperature: varies, ranging from <0°C to >35°C (<32°F to >95°F) precipitation: gets between 25 cm (10”) and 75 cm (30”) of rain each year Grassland adaptations Grass grows from the bottom, not the tip, so it can continue to grow after being grazed on Prairie plants have strong, deep roots to anchor plant and reach groundwater Lots of animals burrow for shelter and protection BIOME ADAPTATIONS TROPICAL RAINFOREST ADAPTATIONS BIRDS HAVE SHORT WING SPANS FOR MORE MANUEVERIBILITY THROUGH TREES LEAVES HAVE POINTED “DRIP TIPS” TO CHANNEL WATER OFF LEAF STRONG CLAWS AND TAILS TO GRASP BRANCHES INSECTS MIMIC LEAF SHAPES TAIGA ADAPTATIONS PINE NEEDLE SHAPE SHEDS SNOW, KEEPS IN WATER LONG LEGS AND WIDE FEET TO GET THROUGH DEEP SNOW SUPERSTRONG JAWS TO EAT FROZEN MEAT Temperate Deciduous Forest: Adaptations camouflage Trees drop leaves to prevent snow damage & save water migration Store water DESERT ADAPTATIONS Nocturnal to avoid sun, big ears to shed heat Scales or thick coverings to keep in moisture Grassland adaptations Grass grows from the bottom, not the tip, so it can continue to grow after being grazed on Prairie plants have strong, deep roots to anchor plant and reach groundwater Lots of animals burrow for shelter and protection ARCTIC TUNDRA: ADAPTATIONS PLANTS: LOW, DARKCOLORED TO ABSORB HEAT, DEEP ROOTS THICK, HEAVY COATS SMALL EARS TO PREVENT HEAT LOSS, COATS CHANGE COLOR WITH SEASON Temperate rain forest adaptations Tall, wide trees serve as nurse logs to their seedlings after they fall, providing decades of water and nutrients as they slowly decay. Rounded body shapes conserve heat (walaby) Dark colors to blend into forest floor