Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/S0304-3800(03)00173-X
Title (Primary) ALMaSS, an agent-based model for animals in temperate European landscapes
Author Topping, C.J.; Hansen, T.S.; Jensen, T.S.; Jepsen, J.U.; Nikolajsen, F.; Odderskaer, P.
Journal Ecological Modelling
Year 2003
Department OESA
Volume 167
Issue 1-2
Page From 65
Page To 82
Language englisch
Keywords Individual-based model; Dynamic landscape; Field vole; Matrix permeability; Farm and crop management simulation

The animal, landscape and man simulation system (ALMaSS) was designed as a predictive tool for answering policy questions regarding the effect of changing landscape structure or management on key animal species in the Danish landscape. By combining agent-based models of animals with a comprehensive and dynamic landscape simulation, it aims to improve predictive ability. The landscape model comprises detailed mapping, weather, farm management, and vegetation growth. Each vegetated area has its own growth model and in the case of farmed areas, management is modelled in detail. Animal models are agent-based, designed using the state/transition concept, and are rule-based. Each animal may interact with others and directly with its local environment. Field vole (Microtus agrestis) is used as an example of the extent to which dynamic landscapes can influence the population dynamics. Simulations of crop diversity and rotation demonstrate significant effects of spatial and temporal heterogeneity on population sizes, population fluctuations and landscape permeability. These two factors interact and thus different responses to temporal factors occur at different levels of spatial heterogeneity. Spatial and temporal heterogeneity in both the model and the real world are often related to changes in land-use and management. Consequently, the impact of landscape changes on any population can be enormous and heavily spatially influenced. Therefore, the use of dynamic landscapes is seen as an important addition to the modeller's toolkit.

Persistent UFZ Identifier
Topping, C.J., Hansen, T.S., Jensen, T.S., Jepsen, J.U., Nikolajsen, F., Odderskaer, P. (2003):
ALMaSS, an agent-based model for animals in temperate European landscapes
Ecol. Model. 167 (1-2), 65 - 82