RAMAS Metapop Tools

The RAMAS toolset is a set of software tools for processing the data found in RAMAS Metapop files. The tools are oriented towards tracking the movements of metapopulations over time, and the changes in the range margins of metapopulations.

The main tool is a GUI for Windows, the RAMAS Centroids Tool.

The tools below are command-line applications compiled for Windows. A GUI version, the RAMAS Centroids Tool is available here.
The command line tools that are currently available are:

Tool Name Brief Description Documentation
GetMCPAreas Returns the area bound by the minimum convex polygon (convex hull) fitted around the metapopulation at each time step of the simulation HTML
GetMeans Returns the mean of the coordinates of each patch with abundance greater than zero, for each time step of the simulation HTML
GetNonzeroCount Returns the number of patches per time step with abundance greater than zero HTML
GetNonzeroPoints Outputs the coordinates and abundance of each patch with an abundance of greater than zero, for each time step of the population HTML
GetPopulations Returns the abundance of each patch at each time step of the population HTML
GetRangeShifts Returns the shift of the metapopulation range margin at each time step of the simulation, where the range margin is a specified proportion of the total abundance HTML
GetWeightedMeans Calculates the weighted mean coordinates of each patch with an abundance greater than zero, for each time step of the simulation, where the weighting factors are the abundance of the patches HTML
GetWeightedPropMarginShifts Returns the proportional shift of the metapopulation range margin at each time step of the simulation, where the range margin is a specified proportion of the total abundance and the coordinates are weighted by the abundance of the patches HTML
GetWeightedRangeShifts Returns the shift of the metapopulation range margin at each time step of the simulation, where the range margin is a specified proportion of the total abundance and the coordinates are weighted by the abundance of the patches HTML

The Metapopulation file used in all of the examples in the documentation can be downloaded here.



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Maintained by Michael J. Watts
Last modified Friday, 25-May-2012 21:06:10 AEST