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Desert Biome

Explore the unique characteristics of desert biomes, including their location in southern states of the USA, Australia, and parts of Africa and South America. Discover the two main types of deserts: arid and hyper-arid, along with their temperature ranges and average rainfall. Learn about the adaptation strategies of various plants, such as xerophytes, and animals, including kangaroo rats, which thrive in extreme heat with minimal water. This insightful overview highlights the intricate food webs and the crucial role of vegetation in sustaining life in these harsh environments.

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Desert Biome

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  1. Desert Biome By: Holli Wright & Jordan Durst

  2. Location • Southern states: Arizona, Texas, New Mexico • Australia • South West Africa • South America

  3. Temperature/Rainfall Average Temperature (Australia): 35.61 degrees C = 96.10 degrees F Average Rainfall in a year (Australia): 6.62 mm = 0.26 in

  4. Types • Arid Desert – plant and animal life • Hyper arid Desert – little to no vegetation and animal life • Hot/Dry Desert • Winter Temperatures: 20-25 degrees Celsius • Summer Temperatures: 43.5-49 degrees Celsius • Cold Desert • Winter Temperatures: -2-4 degrees Celsius • Summer Temperatures: 21-26 degrees Celsius

  5. Vertical Stratification • Soil – Saline or alkaline (sand) • Plants: • Shrubs • Cactus • Plants are called Xerophytes = plants that are able to survive in an environment with little water or moisture • Vegetation: • Sparse grasslands • Shrub lands • Woodlands

  6. Food Web

  7. Animal Adaptations • Large extremities to dissipate heat • Small body size to dissipate heat • Reduce heat input by staying out of the sun and staying in the shade • Example: • Kangaroo Rat -> can survive with little water by converting the dry seeds that they eat into water. These animals don’t sweat or pant to keep their bodies cool in the hot sun. Kangaroo rats spend most of their day in burrows where the air is moist and cool.

  8. Plant Adaptations

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