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Take a virtual field trip through the Desert Botanical Gardens.
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2. What is a desert?
A place where there is a shortage of usable water
The Sonoran Desert is Located here
3. 2 Categories of deserts:horse latitude and rain shadow
deserts
Horse latitude or high pressure zone
At 30 degrees latitude in both the northern and southern
hemispheres, the west coasts of all continents have deserts.These
are caused by high pressure zones which result from warm, dry
descending air.This downward motion of dry air prevents rain.
30o
30o
4. Rain Shadow
Moist air crossing a land mass loses its moisture while passing
over mountains.As the air moves upward, it cools and moisture it
contains condenses dropping precipitation on the windward slopeThe
air is dry by the time it reaches the leeward side resulting in
desert conditions.
5. We are now at the entrance of the garden
6. Habitats
The Sonoran Desert has many different landforms, soil types and
moisture.As a result, several habitats (communities of plants and
animals) have developed in this area.
7. Desert Habitat
The desert, with its many mountains and valleys, is the largest
habitat.These plants can survive on less than ten inches of rain
per year.
8. Mesquite Bosque
Along waterways, where ground water is high, small mesquite forests
grow.The mesquite tree is an important plant to the desert and the
life in it.It is sometimes referred to as the tree of life because
it has so many different uses.
9. Desert Oasis
There are valleys in the desert where one can find streams, pools
and ponds.Many trees like cottonwood, willow trees, and cattails
would otherwise die without these areas.
10. Semi Desert Grassland
On the eastern edge of the Sonoran Desert lie semi-desert
grasslands. The elevation is higher and the rainfall is about ten
to eighteen inches per year.Many grasses, acacia and yucca plants
grow here.
11. Chaparral
The chaparral habitat are mostly in the northern areas of the
Sonoran desert at much higher elevations of 2400 to 4100 feet.There
is 13-25 inches of rain every year.The juniper and desert spoon
make their home here.
12. Match the Habitat
Desert
Mesquite Bosque
Chaparral
Desert Oasis
Semi Desert Grassland
Check the next slide to see if youre correct!
13. Match the Habitat
Desert
Mesquite Bosque
Chaparral
Desert Oasis
Semi Desert Grassland
14. What is a cacti?
Any succulent plant of the family Cactaceae native to the arid
regions of the world and usually having spines.
Succulent plant:
water retaining plants that
store water in their leaves,
stems, and roots.
15. Parts of a Cacti
16. Tonto Basin Agave
Agave delamateri
This plant looks like
a cacti but is actually
more related to the
Lily.It was first used
by the Sinagua Indians.It cannot reproduce by flowers and seeds,
instead it uses clones to reproduce.
17. Strawberry Hedgehog
Echinocereusengelmannii