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Ecology 6 by: Querico A. Marquez and Patricia Louise S. Regala

Deserts and Chaparrals. Ecology 6 by: Querico A. Marquez and Patricia Louise S. Regala. What is a desert?. an area where the rainfall is less than 25 cm (10 in) per year. areas of the world with very low rainfall, and which also experience extremes of heat and cold.

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Ecology 6 by: Querico A. Marquez and Patricia Louise S. Regala

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  1. Deserts and Chaparrals Ecology 6 by: Querico A. Marquez and Patricia Louise S. Regala

  2. What is a desert? • an area where the rainfall is less than 25 cm (10 in) per year. • areas of the world with very low rainfall, and which also experience extremes of heat and cold.

  3. Characteristics of a desert : • area of land that receives very little rain • so dry • few plants and animals grow in them • areas of extremes • temperatures may be hot during the day and cold at night

  4. What are deserts generally made of? • almost all sand and rocks • oasis- spot that has water, where plants and animals mostly live

  5. DESERTS OF THE WORLD

  6. continuation …

  7. The four major types of desert : • Cool Coastal Desert • Cold Winter Desert • Polar Desert • Subtropical Desert

  8. Dry Tropical Climate : • Temp Range 16 degrees Celsius • Annual Precipitation: 0.25 cm. All months less than 0.25 cm ( 0.1 in ) • Latitude Range: 15 degrees to 25 degrees N and S • Global Range: Southwestern United States and northern Mexico, Argentina. North Africa, south Africa, central part of Australia.

  9. Organisms found in deserts : • plants like cactus • animals like camels, pack rats, horned toads and rattle snakes

  10. Means of survival of organisms in the desert : • Existence of oasis • Most animals sleep by day & hunt for food by night. • Cactus is a source of food and water for animals and plants.

  11. Desert Trivia : • driest desert - Atacama Desert, in Chile, is the driest place on earth. No rain had fallen from 1570-1971. • largest desert - The Sahara, in Chile, is about the same size as the entire United States. • Sahara’s past - Millions of years ago it was covered in grasslands & forests. Cave paintings confirm that 4,000 years ago running rivers and animal life existed.

  12. Some pictures of deserts :

  13. More pictures of deserts : • Granite Mountain in the Great Basin Desert • Zabriskie Point in Death Valley California.

  14. ( continuation ) • Death Valley California • kind of cold desert

  15. What is a chaparral? An ecological community especially of Southern California composed of a dense impenetrable thicket of shrubs or dwarf trees.

  16. Characteristics of a chaparral : • forest-like growth of stunted trees and hard leaved- shrubs covering mountain slopes in warm, arid regions of the world • thick growth of bush and small trees that occur mostly in southern California • In California, includes such plants as chamise, manzanita, scrub oak and wild lilac. • Most chaparral plants have small, hard leaves that do not fall off in winter.

  17. Organisms found in chaparral : • deer • foxes • quail • rabbits • chipmunks • Scrub Jays • Acorn Woodpecker

  18. Chaparral Climate: • In the winter, the temperature range is between 30 and 100 degrees Fahrenheit. • Chaparrals can be found 30-50 degrees N and 30-40 degrees S latitudes.

  19. Mediterranean Climate • ave. annual temp- 59 degrees Fahrenheit • highest temp- 91 degrees Fahrenheit • lowest temp- 37 degrees Fahrenheit • ave. temp for winter- 46 degrees Fahrenheit • ave. temp for summer- 71 degrees Fahrenheit • ave. temp for spring- 56 degrees Fahrenheit • ave. temp for fall- 65 degrees Fahrenheit

  20. References: • Young People’s Encyclopedia • The Children’s Pictorial Book of Knowledge • Junior Encyclopedia • The Merriam Webster Dictionary • Two-Can First Encyclopedia • The World Book Encyclopedia • Collier’s Encyclopedia

  21. The End

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