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Savanna's Place on Earth:

    There are savannas all over the world. There are small and less populated savannas in South American, Australia and India, but the biggest and most well known savannas are in Africa. The African Savanna is located at fifteen degrees north and thirty degrees south (latitude) and fifteen degrees west and forty degrees west (longitude).
  
    Abiotic Factors* of the savanna include:
  • Sunlight
  • Temperature
  • Soil
  • Wind
  • Storms
  • Nutrients
    Biotic Factors* of the savanna include: 
  • Plant Characteristics
    • Have long roots that can reach the underground water tables. 
    • Thick bark to resist annual fire.
    • Trunks that can store water.
    • Leaves that drop off during the winter to conserve energy.
    • Some grasses have adaptations that prevent animals from grazing on them.
  • Animal Characteristics
    • Long legs or wings so they can go on long migrations.
    • Perfect place for hawks and buzzards.
    • Has a large range of highly specialized range of plants and animals.
    Density Dependent Factors* of the savanna include:
  • Competition between species
  • Predation
  • Parasitism
  • Disease
    Density Independent Factors* of the savanna include:
  • Weather
  • Flood
  • Forest Fires
  • ETC.

    Organisms in the savanna often times have to adapt in order to stay alive. For instance, most of the grass in the savanna has sharp edges so that animals can  not eat it. This helps the plants to stay alive longer and, in the long run, it helps the savannas to stay around. The animals have to adapt too. They often times have long legs and wings that can carry them farther than normal so that they can make the journeys they need to in order ot get the food and water they need to stay alive.

    Through out the savanna animals are always trying to survive by living off of each other. one of the most common symbiotic relationships* in the savanna is between the red billed oxpecker and the impala-mutualistic. The red billed oxpecker will feed off of the impala-mutualistic by eating the ticks and skin parasites that are attached to it. This helps the oxpecker to stay alive and it also helps the impala to live longer because the skin parasites and ticks are not given the chance to make it sick or kill it.


*Abiotic Factors: The non-living factors in an ecosystem that effect the survival of the organisms in the ecosystem.
*Biotic Factors: Anything that effects a living organism that is itself alive.
*Density Dependent Factors- A factor that effects the birth rate or mortality rate in ways varying with the population density.
*Density Independent Factors- Anything that is naturally occurring that the inhabitants of an area cannot control.
*Symbiotic Relationships- When  both species benefit from the relationship.


Elephant Grass in the savanna.


The red billed oxpecker.



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