Transcript The Desert Biome

The Desert Biome
Precipitation
A Desert is a region
on Earth which
receives less that 10
inches of annual rain
fall, and is generally
taken over by high
temperatures.
Deserts cover one
fifth of all of Earth’s
surfaces
Map
Temperature
Annual temperature
ranges from 20-25ºC
that is 68- 77 F.
Once the sun goes
down, a desert get cold
Animals
Animals in the desert must survive in a hostile
environment. Intense heat, searing sun, and lack
of water are just a few of the challenges facing
desert animals.
Animals that live in the desert have many
adaptations.
Some animals adapt by spending most of the
day underground and out of the hot sun.
Some animals rarely spend any time above
ground.
Cactus Wren
. Cactus wrens are
found in areas with
thorny shrubs, cacti
and trees and forage
mostly on the ground
around vegetation for
insects, such as
beetles, ants, wasps
and grasshoppers,
and occasionally
lizards or small frogs.
Desert Night Lizard
The desert night lizard
varies in coloration over
its range but is marked
with many small dark
spots.
Night lizards give birth to
live young.
It frequents yucca plants
and agaves and feeds on
termites, ants, beetles
and flies, which it finds
among vegetation or
rocks.
Thorny Devil
Its body is covered with bristles
with large, conical spines, and
it has spines above each eye
and a spiny hump behind its
head.
It is a slow-moving creature,
which forages for its food,
mainly ants and termites, on
the ground.
A variety of snakes
Camels
Vulture
Its powerful hooked bill cuts
easily into carrion, and its bare
head and neck save lengthy
feather-cleaning after plunging
deep into a messy carcass.
The immense broad wings,
with widely spaced primary
feathers, are ideal for soaring
and gliding for long periods.
Saguaro
Cactus
The green stem of the
Saguaro Cactus stores all of its
water.
Photosynthesis occurs in the
top layer of the stem instead of
in leaves. Under ground this
cactus has another adaptation
that is hidden from us, its
roots.
Theses roots extend far away
from its trunk. The roots collect
water after rain and is then
Stored in the stem,the water
keeps the saguaro alive until
the next rainfall.
Barrel Cactus
The pleated shape of
the Barrel Cactus
allows it to expand
when it rains and
store water in its
spongy tissue.
It shrinks in size
during dry times as it
uses the stored water.