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Tundra Biome

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Tundra Biome F-Block By: Christina Chen and Emily Eldridge-Ingram Temperature Tundra regions are extremely cold throughout the year, averaging at -28 Precipitation ... – PowerPoint PPT presentation

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Title: Tundra Biome


1
Tundra Biome
  • F-Block
  • By Christina Chen and Emily Eldridge-Ingram

2
Temperature
  • Tundra regions are extremely cold throughout the
    year, averaging at -28

3
Precipitation
  • Tundra regions receive very little precipitation,
    only 15-25 cm annually.

4
Location
  • found beyond the tree line
  • occupy 11,563,300 square km (20 of Earth's land
    surface)
  • found between 60 and 70 degrees latitude
  • most tundra regions are near the North Pole

5
General Description
  • harsh environment that sustains little life (low
    biodiversity)
  • a layer of permafrost in the subsoil
  • lack of tall plants
  • experience only two seasons, summer and winter
  • most precipitation during the summer
  • animal species include caribou, arctic hares, and
    snowy owls
  • no significant human activity

6
Plants
  • arctic moss
  •  
  • aquatic plant inhabiting bottoms of lake beds
  • stores nutrients during winter to produce leaves
    during summer
  • protected from wind and cold air by low height
    and water
  • tufted saxifrage
  •  
  • blankets the ground
  • has short hollow stems
  • leaves are covered with silky hair for insulation
  •  well-developed root system for storing
    carbohydrates

7
Animal Life
  • arctic fox
  •  
  • scavenge for necessary nutrients
  • burrow underground for shelter
  • bushy tail and fur-padded feet conserve body heat
  • developed sharp predatory senses over time to
    hunt prey
  • snowy owl
  •  
  • hunt arctic animals such as voles and lemmings
  • hunt during the day  
  • thick plumage
  • heavily feathered taloned feet
  • their white feathers camouflage them in tundra
    regions

8
Two Abiotic Factors
  • low temperature
  •  
  • only hardy plants can survive
  • most animals have thick fur
  • insignificant human activity
  • scarce precipitation
  • plants are not as nourished 
  • mostly shrubs, mosses, and lichens
  • few large grazing animals

9
Ecological Disturbances
  • global warming has recently melted some of the
    permafrost in tundra areas
  • warmer climate will cause tundras to sustain more
    vegetation
  • growth of taller shrubs
  • this will increase risk of fire and warmth of
    climate
  • this will reduce dominance of mosses and lichens
    and maybe introduce trees to the landscape

10
Bibliography
  • http//www.blueplanetbiomes.org/tundra_plant_page.
    htm (arctic moss and tufted saxifrage)
  • http//www.marietta.edu/biol/biomes/tundra.htm
    (general information)
  • http//www.blueplanetbiomes.org/tundra_animal_page
    .htm (arctic fox and snowy owl)
  • http//www.newscientist.com/article/dn13408-global
    -warming-may-raise-tundra-wildfire-risk.html
    (ecological concerns)
  • http//www.arthurmag.com/tags/trees/
    mossicechunk.jpg (moss picture)
  • http//biomef.wikispaces.com/Tundra (tundra
    picture)
  • http//animals.nationalgeographic.com/animals/mamm
    als/arctic-fox/ (arctic fox picture)
  • http//www.blueplanetbiomes.org/tundra.htm tundra
    location map 001 gif (location picture)
  • http//images.nationalgeographic.com/wpf/media-liv
    e/photos/000/007/cache/snowy-owl_714_600x450.jpg
    (snowy owl picture)
  • http//www.blueplanetbiomes.org/images/tufted_saxi
    frage.jpg (tufted saxifrage picture) 
  • http//scioly.org/w/images/6/65/Tundra_Climagraph.
    jpg (temp graph) 
  • http//earthobservatory.nasa.gov/Experiments/Biome
    /Images/precipsouthafrica.gif (rain graph)
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