biome2_2.jpg Desert_Biome_map.gif

Temperature: Average of 38 degrees Celsius (day), average of -3.9 degrees Celsius (night)

Precipitation: About 10 inches of rain per year

The desert is the driest of all the biomes, but they are not necessarily hot. It lacks moisture in the air which results in rapid heating and cooling of the air. Some of these deserts are hot such as the Mojave desert in the southwestern United States and the Sahara in north Africa. Some deserts are cold such as the Gobi desert in northern China. There are three types of desert:

  • Tropical is the hottest and driest

  • Temperate

  • Cold (Tundra)

Many of the desert biomes are found between 15 and 35 degrees latitude north and south of the equator. There are very few plants that live the in the desert. Many of the plants that do live in the desert such as different kinds of cacti have thick, waxy stems that help store water. Many nocturnal animals live in the desert such as lizards, snakes, mice, spiders, and tortoises. They conserve energy by being inactive during the day and hunt for food once the sun goes down.

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Photos taken from:

Human Influence:

Desert lands might be increasing because of global warming.

Davis, B. (2007). Biomes and Ecosystems. Pleasantville: Gareth Stevens
Donnelly, K (2003). Biomes of the Past and the Future. New York: Rosen