The African savanna ecosystem

The following is a simulation of an ecosystem with fifteen different species, four of which are carnivore, six herbivore, two omnivore, and three primary producers.
For clarity, species are divided into several trophic chains:

Chain 1 :
- Lion, Jackal, Rat, Locust and short grass.
Chain 2 :
- Lion, Giraffe and Acacia.
Chain 3 :
- Cheetah, Boar, Rat, Locust, and short grass.

If you experiment with chain 1 or 3, you will note that a rat plague takes place at the beginning of the simulation. After a while the species' populations reach a stable state.

Course pages:
Modelling an ecosystem	An ecosystem with three species in equilibrium
The introduction of a predator breaks the equilibrium	The introduction of a herbivore breaks the equilibrium
An ecosystem with five species in equilibrium	Let's experiment
The African savanna ecosystem	Three ecosystems with migrations
A multimedia page

Other courses
Gravitation	Ecology	Electronics	PDEs	Other pages

Last modified 21/12/99 by Juan de Lara ( Juan.Lara@ii.uam.es, http://www.ii.uam.es/~jlara) need help for using this courses?.

First model - Second model - The SODA code