Desert

By: Jay McClure

Locations of Deserts

Deserts take up a one fifth of the world and are located towards the top of Africa, parts of Asia, western America, and the south pole. The biggest desert in the world is Antarctica, and the largest warm desert in the world is Sahara, located in Africa.

Weather and Organisms

The weather of deserts depends on the location of the desert, Coastal deserts having cool winters and long warm summers, hot and dry deserts have hot summers and warm winters and lastly cold deserts have moderately warm summers and long cold winters. Most all deserts have little to no rainfall yearly making it difficult for organisms to live here. Animals that do live here are usually are reptiles such as snakes and lizards, most mammals that do live here are small such as the kangaroo rat. Most animals that live here either roam around the desert or live in fallen cactus, living in a cold desert is much more difficult, penguins, seals and any other animals live on fish with the exception of a few animals. Animals do very little to actually help each other besides the emperor penguins who huddle for warmth other than that packs of animals simply do not exist in deserts. Cactus however is used for food and homes in warm deserts allowing life to exist here.

Three main deserts

How do organisms live here/ adaptations.

Organisms that live in deserts have to be able to live with very little water and be very resistant to extreme heat or cold. Most mammals living in warm deserts when it cooler while reptiles wander during the day looking for food. Some animals eat cactus for water in warm deserts. In cold deserts animals have thick layers of fat to keep them warm and rely on fish for food, the Emperor penguins huddle in order to stay warm. Animals do very little to actually help each other besides the emperor penguins who huddle for warmth other than that packs of animals simply do not exist in deserts. Cactus however is used for food and homes in warm deserts allowing life to exist here.
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Food web

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Food web with exotic animal (warm water shark)

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Food web missing an animal (Penguin)

If you remove the penguin from the food chain the seals and orcas would suffer because of their restricted food sources, but the small fish and the squid species would benefit because of less predators.
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