Biomes of the World

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Biomes of the World
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What is a biome?
A BIOME is a community of plants and animals
adapted to a range of temperature and moisture
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• A BIOME is a
• LIFE - ZONE

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How are biomes formed?
Climate. ( Temperatures and Precipitation )
Climate is determined by Latitude
Closeness to large body of water Elevation
Typically, a climb of 100 feet in elevation is
equivalent to traveling 600 miles northward.
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How many biomes are there?
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How many biomes are there?

• Tropical Rainforest
• Tropical Savanna
• Desert
• Chaparral
• Grassland
• Temperate Deciduous Forest
• Temperate Boreal Forest
• Tundra

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Tropical Rainforest

• Near the equator.
• 200 cm or more of rain per yr.
• ( that much rain would fill a rain guage as
  tall as Mr. Mork ! )
• Temps usually 20oC to 25oC all year. year
  round photosynthesis! Lots of food
• Over half of the worlds animal species may be
  found here.

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Tropical Savanna

• Grasslands with some trees
• wet season and dry season
• Hot temps
• 50cm to 127 cm rain / yr
• More species of grazing mammals than any other
  biome

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Desert

• Most deserts 25o to 40o latitude
• Less than 25 cm rain per year
• 20oC to 25oC is usual.
• As high as 38oC as low as
• 15oC

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Chaparral

• Found between 32o and 40o latitude on the west
  coast of continents
• Receives between 35 and 70 cm of rain, usually in
  the winter
• Extremely resistant to drought and weather events

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Grassland

• Too Dry For Trees
• 50 to 90 cm rainfall per year
• Summer temps up to 38 oC, Winter temps as low as
  40 oC

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Prairie Not just grass
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Temperate Deciduous Forest

• 4 seasons.
• Trees lose leaves in the winter
• Temps 30oC to 30oC
• 75 to 150 cm of precipitation

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Temperate Boreal Forest

• Also called the Taiga
• Or the
• Northern Coniferous Forest
• 45o to 60o North latitude
• Cold climate.
• Very few reptiles
• Snow is primary form of precipitation (40 100
  cm annually)

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TAIGA Northern hemisphere only.
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TAIGA .. Tree branches
adapted to carry a heavy snow load without
breaking.
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Red squirrel a primary consumer in the
Northern coniferous forest ( Taiga )
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Tundra

• Means treeless or marshy plain
• Permafrost permanently frozen soil severely
  limits plant growth
• Winter temperatures average 34oC while summer
  temperatures usually average below 10oC
• Low precipitation (1525 cm per year) but ground
  is usually wet because of low evaporation

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Tundra plants and lichens low to the ground
an adaptation
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Caribou primary consumers in the tundra biome
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Arctic Fox . secondary consumer
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TUNDRA BIOME
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Credits

• Text
• http//www.physicalgeography.net/fundamentals/9k.h
  tml
• http//www.ucmp.berkeley.edu/glossary/gloss5/biome
  /index.html
• Pictures
• http//www.worldbiomes.com/
• http//www.ucmp.berkeley.edu/glossary/gloss5/biome
  /index.html
• http//www.blueplanetbiomes.org/
• PowerPoint
• Arizona Game and Fish Department, 2005