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Desert

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it's a ppt about a biome: the desert.

it's a ppt about a biome: the desert.

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    Desert Desert Presentation Transcript

    • Desert Biome
    • What is a Biome? A biome is a geographic area characterized by specific kinds of plants and animals. Deserts, tropical rainforests, and tundra are all types of biomes. In the desert biome many organisms have learned to adapt to the hot climate and lack of supplements.
    • A Desert’s Characteristics
      • Climate
      • Animals
      • Plants
      • Seasons
      • Adaptations
      • Significance to humans
    • Climate
      • The desert is the hottest biome on Earth. It also has its extremes.
      • It can be over 100 degrees during the day and below 32 degrees at night.
      • Less than 25 cm or rainfall every year.
      • The amount of rainfall varies, but when it rains…it POURS!!!!
      • After a storm, the desert may not see any rain for weeks or months.
    • ANIMALS
      • There are hundreds of different animals that live in deserts.
      • Most of them can only be found at dawn or dusk, when it is much cooler.
      • The animals include snakes, owls, mice, armadillo lizards, fennec foxes, gila monsters, bats, and vultures.
    • Animal-Desert Jack Rabbit
      • The desert jack rabbit eats plants, such as the cactus. It is very careful to avoid the prickly spines! Its ears pick up any sound of danger. They also help keep the rabbit cool because heat can escape through the tiny blood vessels that are found there.
    • Endangered Animals Black Rhino Grevy’s Zebra King Cheetah The major causes of endangered animals in the desert are mainly poachers and unexpected drought.
    • Plant Life of Deserts
      • A Variety of cactuses
      • Prickly Pear
      • Dragon Tree
      • Octillo Plant
      • Desert Spoon
      • Boojum
      The vegetation of the Desert Biome is characterized by dominance of annual plants (often annual grasses) This means that after a season with rarely abundant rains, the desert plains can be covered with a sea of short annual grass. Whereas in more normal years, the plains can appear bare with the annual plants persisting in the form of seed.
      • There are several plants that are able to survive in the desert.
      • Most plants survive by their long roots to reach underground water sources.
    • Seasons
      • The seasons are generally warm throughout the year and very hot in the summer. The winters usually bring little rainfall. Temperatures exhibit daily extremes because the atmosphere contains little humidity to block the Sun’s rays.
    • Adaptations
      • Many of the animals in the desert have become nocturnal because of the extreme heat.
      • Both plants and animals have learned to store water, avoid heat by staying underground, and taking water from nearby plants.
    • Human Effects
      • Poachers are a main cause of dying animals. Poachers catch animals of all kinds to make money for usually just one part, like the elephant tusk.
      • With the growing popularity of transportation, many roads are being built in not only the desert, but all the other biomes.
      • The main problem with these roads are the fact that they destroy habitats and endanger animals. Road kill is also a main factor in these dying animals.
      • These problems can be easily taken care of if other means of transportation were encouraged.
    • Locations around the World
    • Weird Facts
      • The Gobi Desert is cold almost all year round.
      • Deserts spread through desertification. This happens when grasslands surrounding deserts become dry.
      • Some deserts have gotten nicknames such as Death Valley because of the lack of water.
    • Oasis
      • Oases are parts of the desert where plants grow and water is almost always available.
      • An oasis is formed by a pool of water trapped between layers of rock and the desert floor.
      • The water can allow people to settle and even grow crops in the desert.
    • THE END Note: this is not a dirt road.