BIOMES

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BIOMES
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What is a Biome?

• Biome A group of land ecosystems with similar
  climates and organisms.
• Ecosystem The community of organisms that live
  in a particular area, along with their nonliving
  surroundings.
• Biotic All living things in an ecosystem
  (plants, animals, bacteria, etc.)
• Abiotic Non-living things in an ecosystem
  (water, rocks, soil, light, rainfall, etc.)

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How many biomes are there and what are they?

• There are 6 major biomes
• Rain Forests
• Desert
• Grassland
• Deciduous forest
• Boreal forest
• Tundra
• https//www.youtube.com/watch?viIQS8kb1wg4

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Rain Forest Biome

• Two types
• Temperate Rain Forests found in the NW US.
• Tropical Rain Forests found along the equator.
  Sometimes called Jungles.

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Temperate Rain Forest

• gt 300cm of rain/yr.
• Huge hardwood trees
• Moderate temperatures

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Temperate Rain Forest
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Tropical Rain Forest

• Close to equator.
• Warm and humid year round
• Distinct tree layers (strata)
• More biodiversity than any other biome!

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Tropical Rain Forest Biome
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Desert Biome

• lt 25cm of rain per year.
• Evaporation gt precipitation
• Big temperature shifts daily
• Found outside of the equator
• Organisms need special adaptations to survive.

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Desert Biomes
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Grassland Biome

• Middle Latitudes
• Prairie mostly grasses and other non-woody
  plants
• 25-75cm of rain/yr.
• Savanna Grasses, small shrubs, and small trees.
• up to 120cm of rain/yr.

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Grassland Biomes
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Temperate Deciduous Forest Biome

• Deciduous trees loose their leaves annually.
• Rain 50cm/yr.
• Large variation in temp. over the yr.

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Temperate Deciduous Forest
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Boreal Forest Biomes

• AKA Taiga
• Located in colder regions in the upper middle
  latitudes
• Trees are coniferous.
• Seeds are in cones and leaves are needle shaped.

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Boreal Forest Biomes
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Tundra Biome

• Extremely dry and cold
• Most soil is frozen yr. round, upper area that
  defrosts permafrost
• Plants mosses, grasses, shrubs and dwarf trees.
• Shallow ponds/marshy areas in the summer.
• Located in the Northern Hemisphere and north of
  the Arctic Circle.

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Tundra Biomes
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