Desert Biome

By: Bryson Bellue

Weather & Climate

Temperatures can exceed 100 degrees F during the day in the summer. At night temperatures can get as low as 20-30 degrees F.

Precipitation is very low in the desert. There is less than 10 inches of rainfall per year.

Plants & Animals

The desert has many types of plants including: saguaro cactus, barrel cactus, old man cactus, prickly pear, dragon tree, fish hook cactus, desert spoon, and aloe.

Plant adaptations: some collect and store water, and have features that reduce water loss.

There are many types of animals including: addax, cactus wren, desert lark, dingo, fat sand rat, fennec fox, gila jerboa, and thorny devil.

Animal adaptations: some never drink, some are nocturnal, and some rarely spend time above ground.

Predator-Prey Relationships

Mountain lion is the main predator of the mule deer.

The tarantula hawk is a predator of the tarantula. The tarantula hawk is a type of wasp that stings the tarantula which paralyzes it. The tarantula hawk then lays eggs on the back of the tarantula and when the eggs hatch, the babies feed off the nutrients from the tarantula.

Biotic and Abiotic Factors

Biotic: plants and animals found in the desert.

Abiotic: water flow, high temperatures, heavy winds, and soil erosion.

Ecological Concerns

Solar powered facilities are being developed in the desert and will affect the landscape.


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