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The Biosphere

The Biosphere






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    The Biosphere The Biosphere Presentation Transcript

    • The Biosphere Earth's Diverse Environments C.Hill 10/26/2009
    • Tropical Rain Forest
        • Rain is abundant
        • Poor soil
        • Large trees
        • Closed canopy
    • Tropical Rain Forest
        • Found in very humid equatorial areas such as:
          • Indonesia
          • Amazon River basin
    • Savanna
        • Dominated by grasses and scattered trees
        • Frequent fires
        • Rapid growing grass, good food source
    • Savanna
        • tropics in central South America 
        • central and South Africa; home to giraffes, zebras, antelopes, baboons, lions, and cheetahs.
    • Deserts
        • Sparse rainfall
        • Rapid evaporation
        • No perennial vegetation
        • Scattered shrubs and cacti
    • Deserts
        • Desert plants and animals adapt to drought and extreme temperatures
        • Only active during cooler nights
        • Conserve water and seed-eaters such as: ants, birds, rodents, lizards, snakes and hawks
    • Chaparral
        • Dense, spiny shrubs
        • Tough evergreen leaves
        • Mild, rainy winters
        • Long, hot, dry summers
    • Chaparral
        • Require occasional fires for long-term maintenance
        • Plants regenerate quickly
        • Animal browsers such as: deer, fruit-eating birds, seed-eating rodents, lizards, and snakes
    • Temperate Grasslands
        • Mostly treeless
        • Relatively cold winter temperatures
        • Seasonal drought
        • Fires
        • Large mammal grazing
    • Temperate Grasslands
        • pampas in Argentina and Uruguay
        • steppes in Asia
        • prairies in North America though little remain due to intensive farming and agriculture.
    • Temperate Deciduous Forests
        • Sufficient moisture
        • Large trees
        • Oak, Hickory, Beech, and Maple 
        • Experience each season
    • Temperate Deciduous Forests
        • Dominates most of the eastern United States
        • Soil rich in inorganic and organic nutrients
        • Support speices such as: arthropods, birds, small mammals, bobcats, foxes, black bears, and mountain lions
    • Coniferous Forests
        • Cone-bearers
        • Spruce, Pine, Fir, and Hemlock
        • Harsh winters, short summers
        • Thin, acidic soil
    • Coniferous Forests Taiga, the most extensive, stretchs across North America and Eurasia reaching the southern border of the artic tundra.
    • Alpine Tundra
        • Found in Andes Mountains in Ecuador
        • Elevation high enough to produce very cold climate
    • Arctic Tundra
        • Permafrost, continuously frozen ground
        • Large mammals with good insulation that include: musk oxen and caribou
        • Smaller animals include: lemmings, arctic fox, and snowy owl.
    • Tundra
      • Northernmost limits of plant growth
      • High altitudes
      • Little precipitation
      • Extremely cold winter air temperature
      • Alaska, Canada, Scandinavia, and Russia
    • Biomes
        • The major terrestrial ecosystems are called Biomes
        • Cover the land surface of the Earth
    • Biosphere Solar energy Water Temperature Wind        Physical and chemical factors that influence                                       life in the biosphere