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HOLE FOR AIR NATURAL HABITAT

ENTRANCE TUNNEL
In ecology, a habitat is the type of natural
environment in which a particular species of
MAIN CHAMBER organism lives. It is characterized by both
physical and biological features. A species'
habitat is those places where it can find food,
shelter, protection and mates for reproduction.
The physical factors are for example soil,
moisture, range of temperature, and light
intensity as well as biotic factors such as the
availability of food and the presence or absence
of predators. Every organism has certain
SOME DENS HAVE A habitat needs for the conditions in which it will
CUB'S CHAMBER LOWER CHAMBER thrive, but some are tolerant of wide variations
while others are very specific in their
requirements. A habitat is not necessarily a
geographical area, it can be the interior of a
The average length of the den is about 15
feet (5 meters) with a chamber measuring stem, a rotten log, a rock or a clump of moss,
and for a parasitic organism it is the body of its
up to 20 square feet. The width measures host, part of the host's body such as the
around 1.38 meters whereas the height is digestive tract, or a single cell within the host's
about 0.8 meter. The average size of the body.
den is about 0.5 by 3.0 by 1.5 m (8 x 10 x 5
feet) lacking ventilation hole. The bear’s den consists of oval chambers with
three cubic meters in volume. Just to be on the
Polar bear females make dens in the steep safer side females build dens 5 – 8 kilometers
slope or snow. The pregnant females make off the coast. However in the Hudson Bay dens
dens that measure 1 – 3 meters in depth. may be found as far ashore as 29 – 118 km
Polar bear den is not so simple. It has one inland. The maternity dens are built on the
narrow entrance which is followed by a long slanting surface measuring 20 – 40 degrees.
tunnel. The tunnel may run several meters. The density of snow is around 1 – 3 meters.
VERNACULAR ARCHITECTGURE URBAN HABITAT

VANTILATION HOLE

LIVING & WINDOW
RESI ING AREA
PASSAGEWAY &
ORAGE

IGLOO, known as a snow house or snow hut, is a type of shelter built of snow, typically built when the snow can be easily compacted.
Although igloos are stereotypically associated with all Inuit/Eskimo peoples, they were traditionally associated with people of Canada's Central Arctic and Greenland's
Thule area. Other Inuit people tended to use snow to insulate their houses, which were constructed from whalebone and hides. Snow is used because the air pockets
trapped in it make it an insulator. On the outside, temperatures may be as low as ­45 °C (­49 °F), but on the inside the temperature may range from ­7 °C (19 °F) to 16
°C (61 °F) when warmed by body heat alone.

URBAN HABITAT URBAN HABITAT

An urban habitat or urban area is a human settlement with high population density and infrastructure
of built environment. Urban areas are created through urbanization and are categorized by urban
morphology as cities, towns, conurbations or suburbs. In urbanism, the term contrasts to rural areas
such as villages and hamlets and in urban sociology or urban anthropology it contrasts with natural
environment. The creation of early predecessors of urban areas during the urban revolution led to
the creation of human civilization with modern urban planning, which along with other human activities
such as exploitation of natural resources leads to human impact on the environment.
The Arctic is the Earth region that lies between 66.5°N and the North Pole. In addition to being defined
as 66.5°N of the equator, the specific border of the Arctic region is defined as the area in which
average July temperatures follow the 50°F (10°C) isotherm (map). Geographically, the Arctic spans the
Arctic Ocean and covers land areas in parts of Canada, Finland, Greenland, Iceland, Norway, Russia,
Sweden and the United States (Alaska).

POLAR NATURAL & URBAN HABITAT
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