Resource Details

Maxent software for species habitat modeling

Maxent software for species habitat modeling
Description 

The Maxent software is based on the maximum-entropy approach for species habitat modeling. This software takes as input a set of layers or environmental variables (such as elevation, precipitation, etc.), as well as a set of georeferenced occurrence locations, and produces a model of the range of the given species.

Author(s) 
Phillips, S., Dudik, M. & Schapire, R.
Abstract 
The model for a species is determined from a set of environmental or climate layers (or "coverages") for a set of grid cells in a landscape, together with a set of sample locations where the species has been observed.  The model expresses the suitability of each grid cell as a function of the environmental variables at that grid cell.  A high value of the function at a particular grid cell indicates that the grid cell is predicted to have suitable conditions for that species.  The computed model is a probability distribution over all the grid cells.  The distribution chosen is the one that has maximum entropy subject to some constraints: it must have the same expectation for each feature (derived from the environmental layers) as the average over sample locations.
Bibliographic citation 
Phillips, S., Dudik, M. & Schapire, R., 2010, “Maxent Software, ver. 3.3.3e”.
Target audience 
Biodiversity data users
Rights 
This software may be freely downloaded and used for all educational and research activities. This software may not be used for any commercial or for-profit purposes. The software is provided "as-is", and does not come with any warranty or guarantee of any kind. The software may not be further distributed.
Rights holder 
Phillips, S., Dudik, M. & Schapire, R.
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