1 / 19

The Desert Biome

By: Ally Kroger and Roman Mohammed . The Desert Biome. No alternate names*. Location. Desert – An area where evaporation exceeds precipitation. Found in North America, South America, Australia, Arabian Peninsula, Syria, Israel, Africa, and Southern parts of Asia

iola
Download Presentation

The Desert Biome

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. By: Ally Kroger and Roman Mohammed The Desert Biome No alternate names*

  2. Location • Desert – An area where evaporation exceeds precipitation. • Found in North America, South America, Australia, Arabian Peninsula, Syria, Israel, Africa, and Southern parts of Asia • Endangered species: Desert Tortoise found in Saguaro National Park Deserts around the world Mojave Desert

  3. Climate • In winter temperatures reach 0ºF in summer upwards of 120ºF • 6.63 Inches of rain annually • Downwind sides of mountains due to rain shadow effect • Soil has little vegetation and moisture to store heat • Skies usually clear

  4. Plant Adaptation • Saguaro Cactus • has prickly spines • Long roots - absorb water and stores in thick stem • Creosote Bush • For protection uses smell and taste • Tiny leaves close their pores during day • avoid water loss • Open pores at night to absorb moisture • Ocotillo • Become dormant during dry periods. Spring to life when water becomes available.

  5. Animal Adaptation • Jackrabbit • Large ears lined with shallow blood vessels allow air to cool their blood • Golden eagle • Rises above the heat, finding cooler temperatures • Desert Tortoise • Most active in the morning and early evening • When not active, seek shelter in burrows or rock crevices • drink huge quantities of water when available

  6. Soil and Chemical Cycling • Soil is sandy or rocky with good drainage • Fairly low salt concentration • Soil quality is low • Low moisture content • Slow nutrient cycling • Little bacterial activity

  7. Economic Value • Mojave Desert provides more than $1 billion annually in economic benefits • Tourism, film industry, military testing and training • people pay more for homes near protected open spaces • Resources

  8. Human Disturbances • Soil destruction by off-road vehicles • Depletion of underground water supplies • Pollution from mineral extraction • Storage of toxic and radioactive wastes • Solar cells

  9. Part 2 Endangered Species Desert TortoiseGopherus agassizii

  10. Characteristics • U.S.A., California, Mojave Desert • Mojave desert and Sonoran Desert • Grass, herbs, wildflowers, NG cacti, fruits, and soil (rocks) • 95% in burrows • 140 degree ground, reproduce in summer/fall

  11. Why? • Urbanization, Disease, Habitat destruction, and fragmentation • Illegal collection, and Vandalism by humans • Crushing by automobiles

  12. Level of Endangerment • Listed as federally threatened species • 90% decline since • 3,200 in 2000 – 1,700 in 2007 • 2-3 in a 100 live to become adults

  13. Laws • Endangered species act • T.A.P. • Touch, harm, harass, or collect

  14. Part 3 Laws that apply Endangered Species Act

  15. ESA • Enacted by the 93rd United States Progress • Richard Nixon signed it December 28, 1973

  16. Provisions • Taking, possession, sale, and transport. • It provides the authority to acquire land for conservation by purchasing the areas needed with water and land conservation funds.

  17. Enforcements • US Fish and Wildlife Service • Can arrest you without a warrant if caught breaking any of the rules

  18. Changes • The number of animals and plants on the list • More and more species are being added on

  19. APPLICATION • The Desert Tortoise is endangered Save us PLEASE!!!! We’re endangered

More Related