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The Biome of a Temperate Desert PowerPoint PPT Presentation


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The Biome of a Temperate Desert. By Lizz S. and Sam S. Climate Characteristics. Average Annual Temperature: 20-25 degrees Celsius The temperature range during the year reaches as high as 40 degrees Celsius and as low as -18 degrees Celsius at night - PowerPoint PPT Presentation

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The Biome of a Temperate Desert

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The biome of a temperate desert l.jpg

The Biome of a Temperate Desert

By Lizz S. and Sam S.


Climate characteristics l.jpg

Climate Characteristics

  • Average Annual Temperature: 20-25 degrees Celsius

  • The temperature range during the year reaches as high as 40 degrees Celsius and as low as -18 degrees Celsius at night

  • Average Annual Precipitation- less than 25 cm per year

  • The main form of precipitation is snow or fog


Graph of precipitation and average temperature l.jpg

Graph of Precipitation and Average Temperature

http://www.marietta.edu/~biol/biomes/desert.htm


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Other Limiting Factors

  • The soils are coarse and rocky

  • Hard for plants to grow

  • Lie between 20-30 degrees North and South of the Equator

  • High pressure areas

  • Lack of precipitation


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Types of Plants

  • Prickly Pear and Saguaro Cactus

    • Adaptations:

      • Reduction of leaves, often into spines for protection

      • Development of the stem as a major photosynthetic structure

      • Water storage in the stem

      • Development of defense structures

      • Coating the plant with a thick waxy cuticle

      • A dense coating of hairs (trichomes)

      • Extensive underground root systems

http://www.marietta.edu/~biol/biomes/desert.htm


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Temperate Desert in North Dakota

http://www.marietta.edu/~biol/biomes/desert.htm


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Types of Animals

  • Bactrian Camel and Zebratail Lizard

    • Adaptations:

      • Nocturnal Lifestyle

      • Living in Burrows

      • Slender bodies with long limbs

      • Specialized snouts

      • Waxy body coatings

      • Efficient kidneys

      • Eyes protected from the sun

http://www.marietta.edu/~biol/biomes/desert.htm


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Degree of Biodiversity

  • The degree of biodiversity is high

  • Many different types of plants and animals that thrive there.

http://www.marietta.edu/~biol/biomes/desert.htm


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Biomass Pyramid

Top Carnivore- Cougar, Eurasian Lynx

Midlevel Carnivore- American jackal, Arctic wolf

Lower level carnivore- sand fox, Corsac fox

Herbivore- Bighorn sheep

Primary Producer- Cacti, aloe, bunchgrass


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Temperate Desert Distribution

http://www.marietta.edu/~biol/biomes/desert.htm


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Reference Page

  • Ingles, Dr. Lloyd Glen. "The Desert Biome." The World's Biomes. 1999. UCMP. 21 Oct. 2008 http://http://www.ucmp.berkeley.edu/exhibits/biomes/deserts.php.

  • "Temperate Desert Biome." Biomes. 4 July 2008. 21 Oct. 2008 http://http://users.rcn.com/jkimball.ma.ultranet/biologypages/b/biomes.html.

  •  "Climate." The Desert Biomes. Marietta College. 21 Oct. 2008 http://http://www.marietta.edu/~biol/biomes/desert.htm.

  • Miller, G. Tyler, Jr. (2002). Living in the Environment: Principles, Connections, and Solutions. California: Wadsworth Group.