Savanna

Biome Poster Project By Sydney Shinkle and Lauren Baker

Introduction to Savannas

The terrain of a savanna is a rolling grassland with scattered shrubs and isolated trees which can be found between tropical rainforests and desert biomes.

Climate

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Plant Species

  • Rhodes grass (Chloris gayana)
  • Rubber vine (Cryptostegia grandiflora)
  • Buffel grass (Cenchrus cillans)
  • Giant rat's tail grass (Sporobolus pyramidalis)
  • Prickly pear (Opuntia)

Plant Adaptations

  • Kangaroo paws have tiny woolly hairs to hold onto water droplets.
  • Trees and plants have fewer leaves so that less moisture is lost through evaporation.
  • The candelabra tree has a spiky outside and poisonous sap which can blind and burn it's predators.
  • The River Bush Willow has a thick bark to resist fires.
  • Trees and plants have longer roots so that they have the ability to extract water from deeper into the ground.

Animal Species


  • Koala Bear (Phascolarctos cinereus)
  • Lion (Panthera leo)
  • Leopard (Panthera pardus)
  • African Wild Dog (Lycaon pictus)
  • Black Rhinoceros (Diceros bicornis)
  • African Wild Elephant (Loxodonta)
  • Chacma Baboon (Papio ursinus)
  • Cheetah (Acinonyx jubatus)

Animal Adaptations

  • African Elephants have tusks to keep away predators. They also have a trunk to drink, gather food, and bathe themselves.
  • African Wild Dogs have great eyesight to help them hunt during the night and strong teeth so they can bite through bone.
  • The Chacma Baboon has sharp claws and teeth to fight off predators.
  • Many of the animals are able to either fly or run quickly to escape the fires.
  • Small burrowing animals remain dormant during times of drought.

Food Web

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Predation: Cheetahs are predators and gazelles are their prey.

Mutualism: Gazelles and Birds- Birds eat bugs off of gazelles and get food, the gazelle is now free of bugs.

Commensalism: Hyenas and lions- Lions eat their food and the hyenas get the leftovers.

Parasitism: Ticks on lions- Ticks drink the blood of the lions and pass on diseases.

Competition: Lions and cheetas- Both compete for meat of their prey.

Food Pyramid

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Human Impact

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Stages of Succession

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Stage 4

In the fourth stage of succession, plants are able to grow good roots because the soil has become rich in nutrients. Grasses, shrubs, and scattered trees are growing.

Interesting Facts

  • The soil in the Savanna is very diverse. Experts have found just about every type of soil there in the Savanna.
  • The Savanna has mainly two seasons in regards to precipitation. There is a rainy season in the summer with around 15 to 25 inches of rain, and a dry season in the winter when only a couple of inches of rain fall.
  • The Savanna climate stays steady and does not change often. When the climate does change, it is very gradual and not drastic.
  • Because its so dry fires are an important part of the savanna.