Therefore, Savanna treats ecological processes at an intermediate level of resolution. The time step of the Savanna model is a week, which allows simulations over longer time scales and larger spatial scales. It has also been applied to western U.S. and Canadian national parks as an ecosystem management model. Ungulates and their interactions with plants are a principal concern. Savanna is unique in representing linkages between plant production and population processes as well as between ungulate energy balance and their population processes.
Primary production is tied directly to the soil water budget.
The model uses geographic information systems for both data input and output. References Coughenour, M. B. 1991. Coughenour, M. B. 1992. Ecological Indicators, Vol. I. Elsevier Applied Science, London and New York.