Category Archives: SIMMAP

8.1 leGUME (the Grand Unified Model of Everything)

This is the model presented in Chapter 8 of the book, which combines elements from many of the building-block models discussed in earlier chapters.

You can see a fairly typical example of long-term survival of the island colonisers in the video.

Details of the model are in Chapter 8 and additional information not included in the Chapter can be found here.

Click on the image to download and save the model NetLogo file. You will need to install NetLogo to run this file.

5.18 the SIMMAP neutral landscape model

This model implements the SIMMAP process for generation of neutral landscapes as described in

Saura S and Martinez-Milan J 2000 Landscape pattern simulation with a modified random clusters method. Landscape Ecology, 15, 661-677.

Click on the image to download and save the model NetLogo file. You will need to install NetLogo to run this file.

This model also requires a text file to configure the relative proportions of each class of landscape that it will produce. This file should not be renamed, and should be placed in the same folder as the model file.

The first line of this file indicates the number of different landscape classes required. Subsequent lines indicate for each required class the desired relative proportion of the landscape that it should occupy. If the model’s percolation parameter is set too high, then it may be very difficult for the model to produce landscapes with proportions close to the requested levels.