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Tropical Desert Biome: Central Australia
Transcript of Tropical Desert Biome: Central Australia
70% of the Australian mainland is classified as semi-arid, arid or desert; making it the driest inhabited continent on Earth.
Only 3% of Australian population live in the desert.
Because the ground is exposed to more than twice the solar radiation of areas that are more humid and loses twice as much heat when the sun goes down.
Deserts are found at 30 degrees latitude north and 30 degrees latitude south, and they are found in bands.
Temperature and Precipitation
The temperature changes quickly, moving from one extreme to the next.
Due to the fact that deserts are very, very dry they can reach above 100 degrees in the day and anywhere between 40-50 degrees at night.
Deserts located by mountains and are caused by the "rain shadow" effect. As air moves up and over the mountain range, it gets cold and loses the ability to hold moisture-- so it rains or snows. When air moves down the other side of the mountain, it gets warmer. Warmer air can hold lots of moisture, so it doesn't rain as much and a desert is formed.
Even the wettest deserts gets less than 10' of precipitation a year.
There are two types of deserts hot and cold
Arabian (Arabian Peninsula)
Chihuahuan (Northern Central Mexico)
Kalahari (S.W. Africa)
Sahara (North Africa)
Atacama (coast of Peru & Chile)
Gobi ( Northern China & Southern Mongolia)
Great Basin (Idaho, Nevada, Oregon & Utah)
Iranian (Iran & Afghanistan)
Turkestan (parts of the middle east)
Addax (Addax Nasomzculztus)- found in Africa. The females horns are 50-80 cm tall and the males horns are 70-85 cm tall. The males weigh anywhere from 100-125 kg and the females weigh anywhere from 60-90 kg.
Dingo (Canis Dingo)- found in Australia, it is the largest predator in Australia. A dingo is 52-60 cm tall and measures from nose to tail tip 117-154cm. The fur of an adult dingo is short and saoft but bushy on the tail.
Gila Monster(Helodremz Suspectum)- found in South West U.S.A.
Side Winder (Cortalus Cerzstes)- found in South West U.S.A
Thorny Devil (Moloch Horridus)- found in Australia
About Our Biome
What we learned
we have learned that the desert is able to hold a decent amount of wild life as well as sustain a balance between conservation and exploitation. Because the wild life has enough to eat but also has its predators that make sure the populations don't get out of hand, even though we sometimes take the plant and wildlife for granted sometimes.
Saguaro- Only found in the Sonora Desert
Barrel Cactus- Expands when it rains due to the pleated shape
Prickly Pear Cactus- Found in the Chihuahua Desert
Dragon Tree- From Canary Islands, the sap when hardened is dark red and this sap is sometimes use as a fake stone in jewelry.
Aloe- The waxy surface keeps water inside. The juice is used to soothe burns or pain.
with some of the plants you are able to use your resources like with the aloe plant it not only holds water but has healing processes as well. The cactus's can bear fruit and hold a good water supply, so you are able to find the nutrients that you need if stranded.
the one thing that is in lack of in the desert is the amount of water, due to the fact that it gets as little as 10' of rain a year.
Due to the constant change in weather the animals have to learn how to adapt to that life style.
Facts - Australian Deserts - Alice Springs Desert Park. (n.d.). Alice Springs Desert Park - Central Australia - Gateway to the West MacDonnell National Park. Retrieved September 23, 2013, from http://www.alicespringsdesertpark.com.au/kids/desert/
Desert Biomes. (n.d.). Blue Planet Biomes. Retrieved September 23, 2013, from http://www.blueplanetbiomes.org/desert.htm