Grasslands

Sarah Roseman

Description


  • Grassland biomes are large, rolling terrains of grasses, flowers and herbs. A grassland is a region where the average annual precipitation is great enough to support grasses.
  • Grassland biomes can be found in the middle latitudes, in the interiors of continents. They are found in every continent except Antarctica and found between the Forest and Desert Biomes.
  • In North America you can be find this biome in many states. A few to list would be: Kansas, Montana, Wyoming, North and South Dakota, Oklahoma, Texas, and Nebraska

Abiotic Factors

  • Climate: The average temperature of the Grassland is from - 20°C to 30 °C. Natural grasslands have a precipitaion of 500 -900 mm per year,
  • Parental material and soil: The parental material refers to the bedrock on which the soil has been formed. Grasslands have a thick layer of humus soil on the top layer of the surface which is a storehouse of different minerals.
  • Topography: The variety of landscapes present and is determined by slopes, elevation and aspects.
  • Natural disturbances: They affect their species diversity, distribution, community formations, successions etc.
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Biotic Factors


  • Different climates, elevations, rainfall, and other abiotic factors have a huge impact on which types of plants and animals can survive in certain grassland biomes.
  • The large variety of plant and animals in Grasslands vary from different continents.
  • Animals: Bison, Antelope, Prairie Dogs, Insects, Chipmunks, Birds, Zebras, Anteaters, and African Bush elephants.
  • Plants: Cattails, Purple Prairie Clovers, Shrubs, Canada Wild Rye, Black Oat Grass and many more.
  • Adaptations: (ANIMAL) Many prairie animals have front legs and paws that allow them to burrow into the ground, where they are protected from predators. The color of the animal blends in with the plant life, which also helps them hide from predators.(PLANT) Most plants in this Biome have deep roots to hold in the soil and help prevent erosion.

Community Interactions

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Importance

The majority of the land in North America is made of Grasslands, a major form of ecosystem that: provides a number of products, including food crops and meat, contributes to the provision of clean water and flood prevention, and are essential to carbon sequestration, or the storage of carbon in the soil.

Human Impacts

  • They are disappearing due to dividing up the land for farming and urban development.
  • Farmers kill prairie dogs because they think they are pests.
  • People tour the Grasslands (mainly tropical) and the animals are developing behavioral problems from being observed for long periods.

Sources

Grasslands Biome. (n.d.). Retrieved February 15, 2016, from http://www.blueplanetbiomes.org/grasslands.htm

Abiotic and Biotic Factors of the Grasslands. (n.d.). Retrieved February 15, 2016, from http://www.tutorvista.com/biology/abiotic-and-biotic-factors-of-the-grasslands

Biotic Factors - Grasslands. (n.d.). Retrieved February 15, 2016, from https://sites.google.com/site/grasslandbiome123/biotic-factors

Prairie:Ecosystems:Animals:Adaptations. (n.d.). Retrieved February 15, 2016, from http://www.museum.state.il.us/muslink/prairie/htmls/eco_an_adapt.html

Plants. (n.d.). Retrieved February 15, 2016, from http://gloria101.weebly.com/plants.html

Grassland Facts: Why Grasslands Are Important - Infographic. (n.d.). Retrieved February 15, 2016, from http://www.mercola.com/infographics/grasslands-facts.htm

Human Impact. (n.d.). Retrieved February 15, 2016, from http://grasslandsbiome3.weebly.com/human-impact.html