Thursday, January 13, 2011


One fact about the savanna is that, it is the biome with the largest herds of animals.
5 Things to learn about the Savanna
1.Most people think the savanna is only found in Africa, when it is really located in 5 countries.

2. People should learn about the great diversity of animals that live in the savanna.
3. The Dangers of the African savanna, form a large elephant to a disease carring tick.
4. Introduced species and how they are effecting the biome.
5. That there is only a wet and dry season it the African savanna.
Intorduced Species in the Australian savanna cause enviromental damage.
These species are buffalo, pigs, para grass, and olive hymenachne. These species are outcompeting with native species. They are also doing considerable damege to the regions

Succession

Primary succession
This is a piece of land that suffered from a wildfire. Now the grass is beginning to grow in the burned land.
Secondary Succession
After the grasses and shrubs start to grow larger plant life will begin to grow. IN the Savanna There are limited amount of trees that grow so it will take a long time for trees to regrow.

introduced species

Intorduced species
Cattle were introduced into the African savanna as a domesticated animal. Now wild cattle herds are growing. The cattle are competeing with the other grazers in the savanna.
Density-dependent Limiting Factors.
Water is a density-dependent limiting factor. During the dry season of the savanna great herds grather around water sources. If a watering hole dries up the herds will have to find a new source of water, limiting the size of the population.
Density-Independent Limiting factors
During the dry season the grass and plant life become very dry setting up a great chance for wildfires. Wildfires destroy food sources for grazzing animals requiring them to move to new places to find food.

Coevolution mechanisms

Coevolution Mechanisms
Camouflage
The lion blends in with the tall grass to stalk up on prey.