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Biomes project

Different types of climates

Elsa Ramos

on 22 April 2010

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Transcript of Biomes project

The tundra is the coldest
of the biomes.Tundra comes from the
word tuntuari, that means treeless plain.

The tundra is divided
in 2 sections.The Artic tundra
and the Alpine tundra. ARCTIC TUNDRA The arctic tundra is
located in the Northern
the north pole and extending south to the conoferous forest of the Taiga. In the arctic tundra the
weather in the winter is
-34*c (30*F)

ALPINE TUNDRA Some examples of animals that live at the tundra are Polar bear,Caribou,wolf,and arctic fox This is an Arctic Fox Its hard for plants to grow
in the arctic.Wild flowers grow inthe
end of June. The alpine growing season is aproximately
180 days.
Animals that live at the Alpine Tundra are,
ammals:tussock grasses, dwarf trees, small-leafed shrubs, and heaths
Animals living in the alpine tundra are also well adapted:

Mammals: pikas, marmots, mountain goats, sheep, elk
Birds: grouselike birds
Insects: springtails, beetles, grasshoppers, butterflies Alpine tundra is located on mountains throughout the world at high altitude where trees cannot grow. The growing season is approximately 180 days. The nighttime temperature is usually below freezing. Unlike the arctic tundra, the soil in the alpine is well drained. Extremely cold climate
Low biotic diversity
Simple vegetation structure
Limitation of drainage
Short season of growth and reproduction
Energy and nutrients in the form of dead organic material
Large population oscillations
In the arctic tundra there are two seasons: winter and summer. In the summer, the sun is present almost 24 hours a day. This sun however, only warms the tundra up to a range of about 3°C to 12°C. In the winter the opposite light conditions are present. There are several weeks where the sun never rises. This causes the temperatures to drop to extremely cold levels. The average temperature of the tundra is around -28°C while extremes can dip to -70°C.

Very few humans live in the tundra, but they can still threaten this biome. Even a small amount of disturbance can have a huge impact on the environment.

Recently, there has been oil extraction, which causes a risk of oil spills. There is also an increased risk of chemical pollution.

Tundra plants grow very slowly. Also, hunting threatens the animals of the tundra.

Footprints and tire tracks can remain on the ground for years.
This was caused
by the human influence
Full transcript