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Deserts

Deserts. http://www.intute.ac.uk/images/BTH_deserts.jpg. http://www.leo.lehigh.edu/envirosci/weather/bitsofbiomes/images/worlddesertmap.jpg. Abiotic Factors that characterize the Desert Biome. Driest Biome on Earth! Hot Deserts and Cold Deserts

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Deserts

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  1. Deserts http://www.intute.ac.uk/images/BTH_deserts.jpg

  2. http://www.leo.lehigh.edu/envirosci/weather/bitsofbiomes/images/worlddesertmap.jpghttp://www.leo.lehigh.edu/envirosci/weather/bitsofbiomes/images/worlddesertmap.jpg

  3. Abiotic Factors that characterize the Desert Biome Driest Biome on Earth! Hot Deserts and Cold Deserts Very little rainfall – less than 9 inches per year Temperatures in Hot deserts range depending on the latitude lines. Some range from 20-25 degrees Celsius Others range from 40-50 degrees Celsius Hot during the Day and Cold at Night

  4. http://media-cdn.tripadvisor.com/media/photo-s/01/0e/24/2e/cactus.jpghttp://media-cdn.tripadvisor.com/media/photo-s/01/0e/24/2e/cactus.jpg Examples: Cactus and Shrubs Turpentine bush Prickly Pear http://www.public-domain-image.com/plants/flowers/slides/prickly-pear-cactus-in-texas.jpg http://www.texaswildflowerpictures.com/wildflowers/mesquite.jpg

  5. Plant Adaptations: MUST CONSERVE ENERGY AND WATER LOSS! Small leaves- less evaporation Hairy leaves- reduces evaporation and keeps in moisture Very shallow branching roots to absorb surface water Live close to ground- water won’t need to travel up as far. Spikes or thorns prevent animals from eating them for their stored water. Stomata only open at night Stomata- opening on plants leaves that allows CO2 in for photosynthesis.

  6. Examples: Rodents, Snakes, Lizards, Birds http://www.californiaherps.com/lizards/images/hssustonguerbaz.jpg http://www.americansouthwest.net/arizona/photographs700/desert-tortoise.jpg http://www.thedailygreen.com/cm/thedailygreen/images/Eh/tdg-pronghorn-de.jpg

  7. Animal Adaptations Store water in fatty tissues Reduce activity during the day Nocturnal - Hunt at night Burrow under ground during the day (Kangaroo Rat) Specialized kidneys that redirect water back into blood stream. Exoskeleton or scales reduce water loss.

  8. Circulating blood thru large flat ears cools off this rabbit.

  9. Grasslands

  10. Two Types of Grasslands Savanna - Tropical Climate, warmer and closer to the Equator Prairie - Temperate Climate, milder and found in the United States Moderate Rainfall – 50 to 90 cm per year (enough to support grasses but not forests) Very Fertile Soils! – Bread Basket of the World

  11. Grasslands- Savanna http://room42.wikispaces.com/file/view/2.jpg/33517415/2.jpg

  12. http://www.blueplanetbiomes.org/images/savanna_location_map.gifhttp://www.blueplanetbiomes.org/images/savanna_location_map.gif

  13. Grasslands- prairie http://tiee.ecoed.net/vol/v5/practice/dalgleish/img/konza1-prairie-1600x1200.jpg

  14. http://www.city-data.com/forum/general-u-s/987688-estimate-cover-great-plains.htmlhttp://www.city-data.com/forum/general-u-s/987688-estimate-cover-great-plains.html

  15. 2 Seasons: Wet Season and …

  16. Dry Season

  17. Grasslands • Two distinct seasons- Wet and Dry Averages around 60 inches of rain per year but six months with hardly any rainfall. Dry season increases chances of wild fires!

  18. Examples: Grasses, Wildflowers and Small Trees http://www.biolib.cz/IMG/GAL/46007.jpg Gum Tree Kangaroo Paw Elephant Grass http://www.earthpeace.com/images/ElephantGrass.jpg

  19. Deep, spread out roots allow grass to get water even in drought. Grass grows from the base- so even if eaten at the tops, they stay alive and still grow.

  20. Thin, vertical leaves, lose less water thru evaporation

  21. No low branches to keep leaves away from fire

  22. Some animals have adapted to reach those tall branches

  23. Animals of The SavannahExamples: Lion, Hyena, Zebra, Gazelle http://upload.wikimedia.org/wikipedia/commons/8/83/Zebra_Botswana_edit02.jpg http://misc.qti.com/staff/greg/img/photos/emu.jpg http://lh4.ggpht.com/_nbfHbMxrVCQ/SWtgDikWntI/AAAAAAAAD0Y/YvURvT6qfKY/Wild-Dog-Puppy-2.jpg

  24. http://i.pbase.com/o4/06/642806/1/64797441.j3lh4qEI.DSC_00491.JPGhttp://i.pbase.com/o4/06/642806/1/64797441.j3lh4qEI.DSC_00491.JPG http://www.in-the-garden.eu/public/200910/bald-eagle.jpg Animals of the Prairie: Prairie dogs Bobcats Badgers Eagles http://bioweb.uwlax.edu/bio203/s2007/steinmey_isaa/badger-badger.org.jpg

  25. Graze in herds- decrease your chances of being the prey Stripes add to camouflage

  26. Prairie dogs and other small mammals burrow to avoid dry windy conditions or predators

  27. Specialized Teeth for Grazing

  28. Muscular bodies, strong legs, and tough hooves for running long distances

  29. Camouflage – for ambushing prey

  30. Annual Rain fall for the Desert and Grassland Biomes Desert Grasslands

  31. Annual Temperatures for the Desert and Grassland Biomes Desert Grasslands

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