Prairies

By: Ashrita and Natalya

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Prairies are temperature grasslands with moderate rainfalls and grasses, herbs, and shrubs as the dominant vegetation.

Climate Explaination

climate explanation: prairies

Plant Species

  • needlegrass or Stipa spartea
  • indian grass or Sorgnastrum nutans
  • stiff goldenrod or Solidaga rigida
  • tall coreopsis or Coreospsis tritpteris
  • rattlesnake master or Eryngium yuccifolium

Plant Adaptations

  • Prairie grass have narrow leaves that lose less water
  • Roots extend donwards as much as 3.5 meters to get water during dry periods
  • Bright flowers attract insects for pollination
  • The growing point of some plants is underground to survive fires and re-grow
  • Many plants adapt to the wind by using it as self pollination

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Animal Species

  • Antelope or Antilocapra americana
  • Gopher Snake or Pituophis catenifer
  • Rabbit or Oryctolagus cuniculis
  • Tiger Swallowtail Butterfly or Papilio glaucus
  • Red-Tailed Hawk or Buteo jarnaicensis
Animal Adaptations

  • Many animals have front legs and paws that allow them to burrow in the ground
  • flat topped teeth and digestive system adapted to feed on grasses
  • Many are nocturnal which helps hide from predators
  • Small mammal have claws to help dig into the ground
  • The different colors like broken help them blend in with the grass

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Food Web

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Interactions

  • Parasitism- birds lay their eggs in other nests, then leave
  • Commensalism- cattle egrets eat insects out of grass, the cattle that graze don't eat the insects
  • Mutualism- ox picks parasites off of buffalo for food, the buffalo no longer has parasites.
  • Predation-prairie dog (prey) snake (predator)
  • Competition- antelope and grasshoppers compete for bluestem grass

Food Pyrimid

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Human Influence

human influence: prairies

Stages of Succession

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Interesting Facts About Prairies!!

  • Prairies once covered 40% of the United States.
  • Prairie chickens can be found in prairies, but there are only 400,000 left
  • Prairies formed 8,000 years ago.