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MayaSim: An agent-based model of the ancient Maya social-ecological system 1.3.0

The MayaSim model is an integrated agent-based, cellular automata, and network model representing the ancient Maya social-ecological system. The model represents the relationship between population growth, agricultural production, soil degradation, climate variability, primary productivity, hydrology, ecosystem services, forest succession, and the stability of trade networks. Agents representing settlements develop and expand within a spatial landscape that changes under climate variation and responds to anthropogenic impacts. The model is able to reproduce spatial patterns and timelines somewhat analogous to that of the ancient Maya, although this proof-of-concept model requires refinement and further archaeological data for calibration. This paper aims to identify candidate features of a resilient versus vulnerable social-ecological system, and employs computer simulation to explore this topic, using the ancient Maya as an example. Complex systems modelling identifies how interconnected variables behave, considering fast-moving variables such as land cover change and trade connections, meso-speed variables such as demographics and climate variability, as well as slow-moving variables such as soil degradation.
This is a companion discussion topic for the original entry at

Quick note, I have updated the model to Netlogo 6.0. Let me know if you need it.

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Thanks a lot! Could you please provide the NetLogo 6 version?

I would love to see the update to Netlogo 6.0 as well. It seems that the major changes are around ?1 and ?2 and other anonymous variables.

I am still a bit ignorant in how to rewrite the procedure calls.

An update of the model would be most welcome. Thanks

I would also like to see the 6.0 update. Could you send it?