The document discusses terrestrial ecosystems, specifically tundra ecosystems. It defines key terms like ecosystem, pollution, and habitat. It then describes tundra ecosystems, noting that they are treeless, cold, windy regions found in the Arctic and high elevations. The tundra has a harsh climate with below freezing temperatures for 6-10 months per year. Flora is low-growing and dispersed due to the climate. Fauna have adapted thick fur and fat to survive the cold. Examples of tundra locations include Alaska, Siberia, Iceland, and northern Canada.

1. TERRESTRIAL
ECOSYSTEMS

2. What is an ecosystem?
An ecosystem is an
environment where living
and non-living things
interact.

3. What is pollution?
Pollution is the presence in or
introduction into the environment of a
substance which has harmful or
poisonous effects.

4. What is an habitat?
An habitat is the
natural home or
environment of
an animal, plant,
or other organism.

5. TUNDRA
Tundra ecosystems are treeless regions found in the Arctic and on
mountain tops, where the weather is cold and windy, and rainfall is
scarce. The tundra lands are covered in snow for much of the year, but
the summer brings bursts of wild flowers.

6. Where are the tundra
ecosystems?
The territories of the tundra are
located in the polar regions and high
latitudes, mainly in the northern
hemisphere of the planet, and covers
regions such as Alaska, Siberia, Iceland,
the southern part of Greenland, in
Europe the northern part including
Russia and Scandinavia, the northern
Canada, northern Antarctica, the
highlands between Chile and
Argentina, different subantarctic
islands.

7. What is the tundra
climate?
Due to its altitude and
proximity to the poles,
the tundra's climate will
remain below freezing
during most of all
seasons of the year,
around 6 to 10 months.

8. Flora of the tundra:
At such low temperatures the tundra
does not have trees, but they do
have plants of low dimensions and
up to 400 species of different
flowering vegetation.
Due to the weather conditions and
the low rainfall, there is a lack of
decomposing organic elements that
in the end are nutrients that feed the
vegetation, so we can find it rather
dispersed in the landscape.

9. Tundra fauna:
Taking into account the climatology of
the tundras, the animals have evolved
towards an adaptation of a hard and
cold climate. They are protected by
thick layers of fat under their skin with
long, thick fur. In some cases they have
white fur with the intention of
camouflaging themselves in the snow
and being able to flee from their
predators.

10. AND THIS IS MY PROJET ABOUT
TERRESTRIAL ECOSYSTEMS
THANK YOU FOR YOU ATTENTION
BY: Alfonso Castellanos García.