Mikayla Cook DESERT BIOME

The desert can have dry periods of several years Plants only cover a small percentage of ground

surface

TEXTBOOK INFORMATION ABOUT THE DESERT

Xerophyte- plants that have adapted to these dry climates

Plants adapt by producing needles or waxy skins to store and collect moisture.

TEXTBOOK INFORMATION ABOUT THE DESERT

FOOTNOTE SLIDES

Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the rocks which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods.

FORMING DESERTS

http://en.wikipedia.org/wiki/Desert

Plants living in the desert need special adaptations to survive in the harsh environment. Plants tend to be tough and wiry with small or no leaves. Some annual plants germinate, bloom and die in the course of a few weeks after rainfall while other long-lived plants survive for years and have deep root systems able to tap underground moisture.

PLANTS

http://en.wikipedia.org/wiki/Desert

ANIMALS

Animals living in the desert need special adaptations to survive in the harsh environment. Animals need to keep cool and find enough food and water to survive. Many are nocturnal and stay in the shade or underground during the heat of the day.

http://en.wikipedia.org/wiki/Desert

A desert is a region of land that is very dry because it receives low amounts of precipitation, often has little coverage by plants, and in which streams dry up unless they are supplied by water from outside the area. Deserts can also be described as areas where more water is lost by evapotranspiration than falls as precipitation. Deserts generally receive less than 250 mm (10 in) of precipitation each year.

LITTLE PRECIPITATION

http://en.wikipedia.org/wiki/Desert

Sand and dust storms are natural events that occur in arid regions where the land is not protected by a covering of vegetation. As wind begins to blow the particles get lifted up into the air. Particles can be in the air for days.

DUST STORMS AND SANDSTORMS

http://en.wikipedia.org/wiki/Desert

Desert surfaces receive a little more than twice the solar radiation received by humid regions and lose almost twice as much heat at night. Many mean annual temperatures range from 20-25°C. The extreme maximum ranges from 43.5-49°C. Minimum temperatures sometimes drop to -18° C.

TEMPERATURE

http://www.ucmp.berkeley.edu/exhibits/biomes/deserts.php

Soils often have abundant nutrients because they need only water to become very productive and have little or no organic matter. Disturbances are common in the form of occasional fi res or cold weather, and sudden, infrequent, but intense rains that cause flooding.

SOIL

http://www.ucmp.berkeley.edu/exhibits/biomes/deserts.php

Deserts cover more than one fi fth of the Earth's land, and they are found on every continent.

DESERTS

http://environment.nationalgeographic.com/environment/habitats/desert-profile/

Deserts are second only to tropical rainforests in the variety of plants and animals that live there.

DESERTS

http://www.defenders.org/desert/basic-facts

The largest hot desert on Earth is the Sahara.

The Sahara Desert is located in northern Africa, spanning 12 diff erent countries.

SAHARA DESERT

http://www.sciencekids.co.nz/sciencefacts/earth/desert.html

Soil profi le of the desert Biome Click icon to add picture

All these places are found in the desert biome.

CLIMATOGRAPHS

WORLD LOCATION

STRATIFICATION LAYERS

Click icon to add picture

FOOD WEB OF DESERT BIOME

Short grasses

PLANTS IN DESERT BIOME

Cacti

PLANTS IN DESERT BIOME

Desert Spoon

PLANTS IN DESERT BIOME

Sagebrush

PLANTS IN A DESERT BIOME

Creosote bushes

PLANTS IN THE DESERT BIOME

ANIMALS IN DESERT BIOME

ANIMALS IN DESERT BIOME

ANIMALS IN DESERT BIOME

ANIMALS IN A DESERT BIOME

ANIMALS IN A DESERT BIOME

THE END