Description of ecosystem: "Cold deserts"

1. José María Lorca Lorente
2ºESO A

2.  A desert is a biome which has little rainfall.
 The deserts form the largest area of the land
surface, a 53% of the deserts are hot deserts and
the 47% of deserts remaining is formed by cold
deserts.
A cold desert A hot desert

3.  A cold desert is a desert which temperature
usually are under 0 C, moisture in the air and the
wind is strong,that means life is really difficult.
 The living things which lives in these places are
adapted

4.  Polar regions:where the temperature remains
below the freezing point all year, leaving the soil
with no way of life.
A polar region

5.  North pole:Artic,It belongs to the Artic Ocean and
areas from the north of Europe, Asia and North
America.
 South pole:Antartic.They are the coldest places in
the world.

6.  In the Arctic, many animals are living on land and
in Antarctica, wildlife lives entirely in the ocean.
 We can find in cold deserts animals like polar fox,
lemming brown or Siberian reindeer, polar wolf
humpback whale….
 All are adapted to the climate with a large fur or
fat that helps keep heat and energy.

7. A polar wolf a polar bear
A polar fox A siberian lemming

8.  Lifestyle are simple, poor and sometimes non-
existent.
 Terrestrial algae, lichens, fungi, moss, antartic
grass , arctic flower and liver carnation.
 In the less extreme places appear some
herbaceous.

9.  It is one of 17 arctic endangered animals, caused
by the melting of polar rubble.
 Arctic tundra of the Arctic Fox depends is
disappearing due to an increase of temperature,
because of this red fox (arctic fox enemy food)
moves northward and reduce the territory.

10.  In the polar areas, summer and winter lasts six
months.
 Polar deserts have lower annual precipitation
250 ml.
 The soil remains frozen.The most of the soil are
bedrock or gravel plains.
 Only water is in liquid state in areas rising from 0
C

11.  The aurora borealis is a phenomenon that
appears in the night sky in polar areas.It is visible
from September to March.Aurora comes from the
Roman goddess of dawn and northern boreal
meaning.

12.  Taklamakan desert (enter and never leave) is a
paradigm of a cold desert.Due to its proximity to
the cold air mass from Siberia in winter may be -
ºC.In 2008 It was covered with a layer of snow of
4 cm and a temperature of -26 ° C.

13.  It is a cold desert that stretches from northern
China to southern Mongolia, occupies almost a
million Km2 .
 Fauna: Real eagle, wild camel, gray wolf.
 Flora: The Tahana or cimarrona onion, acacia,
artemisia, all dwarfed, deformed and stunted.

14.  It is some of the species threatened not only by
the lost of their habitat, but also by the hunters
because of the value of his skin.
 Lives in the Gobi Desert.