Lets start by defining a biome.  A biome is “climatically and geographically defined areas of ecologically similar climatic conditions such as communities of plants, animals, and soil organisms.”  Biomes are much larger than ecosystems.  Most of the time a biome is many different ecosystems put together.  The savanna has a wet and dry season.  Most of the time, animals will migrate during the dry season.  The temperature does not change very much for the whole year.  The annual precipitation is about 10 to 30 inches. Instead of migrating during the dry season, some animals hibernate.  Other animals, like the elephant, can use their strength to break open certain trees to get the water inside of them.  There are two seasons in the savanna.  A wet season and a dry season.  The wet season is in summer and the dry season is in winter.  The dry season tends to be a bit cooler than the dry.  Some people say that because of global warming, forests around savannas may start taking over the savannas, and some say the opposite.  There will also be dramatic shifts in vegetation distribution.

Grass is the primary producer and Lions are generally the top consumer.  Here are some savanna animals and plants.

• Sausage Tree:  Creates poisonous fruits that release seeds as the fruit rots.  The fruits can weigh up to five kilograms.
• Strangle Fig:  Begins as a vine where it wraps around a tree and uses the tree to branch out and kills the tree.
• Umbrella Tree:  The seeds are eaten by elephants and cannot survive fires, so this species has only been able to grow twice in the past 200 years.
• Pan Dropseed:  One of the most common grasses on the savanna.  The are very small because the hard soil keeps grass roots from growing deep.
• Yellow Fever Tree:  Used to be blamed for malaria.  Common along rivers.
• Arthropod:  Spiders live on the savanna.  They are hatched out of eggs already through their larva stage and are similar to adult spiders.  They live normally about 3 years. 
• Mollusk:  Snails live on the savanna.  They are hatched out of eggs.  They live normally about two years. 
• Amphibian:  Frogs hatch out of eggs.  They mature into tadpoles, then they undergo metamorphosis and turn into adults.  Not much is known about their life span in the wild, but frogs in captivity have lived up to 40 years.
• Reptile:  Chameleons hatch from eggs.  They mostly live in trees.  They can change the color of their skin.
• Bird:  Flamingos  hatch from eggs.  They normally live from 20-30 years in the wild, but longer in captivity.
• Mammal: Cheetahs give live birth.  They normally have a litter of 3-5.  The mother leaves the cubs about a year after birth, and they cubs stay together for about half a year, and then the girls leave while the males stay together.  Females tend to live alone while males stay with their brothers.  Cheetahs normally live about 12 years in the wild.

Here’s a food chain I found on the Savanna.

I hope this helped if you needed information on the savanna, or you were just curious!