BIOMES

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BIOMES
LOCATION, LOCATION, LOCATION
Climate long term weather patterns predict
what type of organism will be successful in that
ecosystem
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BIOMES
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Biomes Climatograph
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Desert Biome
Hot Deserts Mojave, Arabian, Saharan (N. Africa)
Covers 1/5 of the worlds land
Cold Deserts US Great Basin (Idaho, Nevada,
Utah), Middle East, Russia
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Desert Adaptations Plants large, deep tap
roots waxy covering succulants Animals
nocturnal some get water only from seeds
(kangaroo rat)
SEDIMENTS SHOW GEOLOGIC RECORD
painted desert
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CHAPPARAL - minor BIOME

• Characterized by scrub vegetation
• Mild Winters HOT Summers
• California Europe Mediterranean

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GRASSLANDS
Steppes Russia Asia Prairies N.
America Pampas S. America S. Africa Savannahs
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Savannas

• Location Dominating the continent of Africa,
  savannahs are also found in India and the
  northern part of South America.
• FACTS...
• Savannahs are in fact tropical grasslands for
  they are located at tropical latitudes (much
  drier)
• Rainfall in this biome is between 20 to 60
  inches a year, and can be very seasonal (usually
  falling within a time period of a couple weeks).
• Growth after the rainfall occurs, however long
  periods of drought follow.

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Other Causes of Grasslands Elephants trampling
trees and stripping bark Human cause - clear
cutting for agricultural purposes
Poaching Problems
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Tropical Rainforest
Distinct zones canopy, emergent, understory,
shrub, forest floor
Importance Recycling of CO2 Release of
O2 Biodiversity Medicinal Purposes
High Primary Productivity Poor Soil Fertility
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Temperate Deciduous Forests

• Four distinct season
• Five layers to the forest (Tree stratum (oak,
  beech, maple) Sapling Zone Shrub (rohodendrons,
  azalea) Herbal Ground (moss, lichen)
• Organisms are mostly dark in coloration to blend
  in with the environment (adaptation)

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Temperate Decidious
OAK, BEECH, BIRCH, Maple
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The Taiga BiomeBoreal Forests
Taiga is the largest biome on earth
GLOBAL LOCATION

• The average temperature is below freezing for six
  months out of the year
• Total precipitation is usually 12 to 33in. (30
  85cm.)
• Precipitation falls in the form of rain, snow, or
  dew depending on the season.

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Flora Fauna
Dominant primary producers are gymnosperms -
evergreens
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TUNDRA
TUNDRA From a Finnish word tunturia meaning
treeless plains.
TWO TYPES ARCTIC ALPINE (both in N.
Hemisphere)
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flora
fauna
Rosette
ARCTIC FOX SNOW OWL
Polar Bear
Reindeer moss Cotton Grass