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Desert Biome

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by

kendra steel

on 18 October 2012

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Transcript of Desert Biome

Sahara is a hot and dry desert.
A hot/dry deserts temperature ranges from 20 to 25° C. The extreme maximum temperature for Hot Desert ranges from 43.5 to 49° C. Hot and Dry Desert Hot and Dry Deserts usually have very little rainfall and/or concentrated rainfall in short periods between long rainless periods. This averages out to under 15 cm a year. Elevation for a hot/dry desert can vary anywhere from 1,300 feet in the Sahara or the highest at Mount Al-Nabī Shuayb with an elevation of 12,336 feet. The average elevation is around 1,000 feet. Cold Deserts temperature in winter ranges from -2 to 4° C and in the summer 21 to 26° C a year Cold Desert Cold Deserts usually have lots of snow. They also have rain around spring. This averages out to 15 - 26 cm a year Elevation of Cold Deserts range from 490 feet to 3,000 feet succulents store water in stems and leaves
long root systems to absorb more water
waxy coating to reduce water loss
slower growth, requires less energy Plant Adaptations Soap tree yucca
"Yucca elata" Brittle bush
"Encelia farinosa" African welwitchsia
Welwitschia mirabilis black saxaul
Haloxylon ammodendron Hairy Spinnifex
Spinifex sericeus avoid heat/ dissipating heat
retaining and acquiring water
physiological adaptations Animal Adaptations Human interference:
Development
irrigation
mining
Global warming Threats to the biome Diamondback Rattlesnake
"Crotalus atrox" Llama
"Lama glama" Dromedary Camel
"Camelus dromedarius" Dorcas Gazelle
"Gazella dorcas" Thorny Devil
"Moloch horridus" DESERT BIOME
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