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Tropical Desert Biome

Tropical Desert Biome

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Tropical Desert Biome

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  1. Tropical Desert Biome Kate K. Tori C. Chris T. (http://www.flickr.com/photos/coll/484471564/)

  2. Climate Characteristics • Average Annual Temperature: 22.8 C • Temperature Range: 21.2 C http://www.rainbowgardensbookshop.com/f18.jpg

  3. Average Annual Precipitation: 43.8 mm • Other Limiting Factors: • Extreme Temperature Differences • Little Vegetation • Sparse Animal Population • Clear and Sunny, Limited Shade

  4. Geographic Location • Main Locations: • Saudi Arabia • Southwest United States • Sahara Desert Sahara Desert http://www.blueplanetbiomes.org/desert.htm *Light Yellow Represents Tropical Deserts http://enviro-map.com/maps/sahara_map.jpg

  5. Flora and Fauna • Rules of Adaptation: • Beat the Heat • Every Drop of Water Counts http://www.flickr.com/photos/backlitcoyote/1356976549/

  6. Flora Adaptations • General: • Small leaves conserve water • Deep roots collect groundwater • Drop leaves to survive during dry spells • Widely spread roots collect water after rain showers. • Sage Brush: wax coated leaves minimize transpiration • i.e. Cacti, Creosote Bush, wildflowers, mosses, lichens (Living In The Environment)

  7. Fauna Adaptations • General: • Thick shells to minimize water loss • Small size • Sparse populations • Dry feces and urine concentrate • Spiders: Collect water from dew, dormant during extreme heat • i.e. coyotes, snakes, owls, lizards (Living in the Environment)

  8. Degree of Biodiversity • Very low species diversity • This is caused by lack of resources and extreme climate

  9. Biomass Pyramid Secondary Consumers: coyotes, snakes, lizards, foxes, owls, and hawks Primary Consumers: birds, insects, rodents, and other seed-eating herbivores, Producers: Evergreens (with wax coated leaves), desert perennials, perennial shrubs, wildflowers and grasses, mosses and lichens

  10. Bibliography Ritter, Michael E. The Physical Environment: an Introduction to Physical Geography.2006. October 19, 2008.  http://www.uwsp.edu/geo/faculty/ritter/geog101/textbook/title_page.html Benders-Hyde, Elizabeth M. "Desert Biomes." Blue Planet Biomes. 2000. 17 Oct. 2008 <http://http://www.blueplanetbiomes.org/desert.htm>. Miller, Jr., G. Tyler. Living in the Environment. 12th ed. Belmont, Ca.: Thomson Learning, 2002. 132-36.