Tundra is one of the coldest of all biomes. It is also big, The tundra covers one
fifths of the earth. The word tundra comes from Finland it mean’s treeless
plain. Tundra are located in the Arctic circle.
POLAR BEAR:
The skin of the polar bear is black so it can retain the heat in it’s
body, and It can prevent heat loss from it ears because they have
short ears.
CARIBOU:
Caribou has thick fur and skin to help them to enter frigid rivers
during the time of migration in the tundra region.
Arctic fox:
Artic fox has thick fur on its feet and over the body to keep warm
always , it has small ears, small body and a bushy tail that curls
around it’s body.
plants:
There is barely any vegetation in the tundra. The plants present in
this region are shrubs, grasses, lichens, mosses etc. The layer of snow
acts as a protective layer for these during cold winter months.
abiotic factors :
Average annual temperatures are -70°F (-56°C). it doesn’t affect the
animals much because they all are adapted with thick fur , short ear
etc. plants are also not affected much because the plant are very short
in height and their roots are very short. When the temperature is
reaching around 10 degrees , the small plants start to grow faster and
develops flowers and seeds.
Human activities:
Tundra region are not affected much by the human activities because
its not easy to reach and stay there. But now tundra region is also
started to face the impacts of human activities like oil exploration and
tourism. I believe that the human activities are bad because the
plants and animals live there are going to get instinct. We need to
control the tourists from going there and also ban the oil exploration.
Bibliography:
http://kids.nceas.ucsb.edu/biomes/tundra.html
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"Oil and Water | Earth Island Journal | Earth Island Institute." Oil and Water | Earth
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"Arctic Hare." Arctic Hare. N.p., n.d. Web. 12 Jan. 2013.
"Rock Ptarmigan." Rock Ptarmigan. N.p., n.d. Web. 12 Jan. 2013.