I'm creating SDM for an endemic species to a country. The country have different areas where climate, elevation and LULC differ. Is there a tool / way to indicates the most limiting factor / factors for each area in that country?. I don't have enough data in each area to make separate models in maxent. I can obtain one model only for the whole country. So, is there a helpful tool in arcgis, an option in maxent or any known program?.
Jane Elith and co-authors have a detailed description of how to do this using Maxent and provide code for doing so - https://besjournals.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2Fj.2041-210X.2010.00036.x&file=MEE3_36_sm_AppendixS1-S7.pdf (see page 5 in the supplementary material)
Elith, J., Kearney, M., & Phillips, S. (2010). The art of modelling range‐shifting species. Methods in ecology and evolution, 1(4), 330-342.
The basic premise of their method is once you have a good model then you can systematically run models dropping each predictor one at a time and see how well it affects the prediction accuracy. The variable that leads to the largest drop is the limiting factor. You can even map out for each pixel which variable is most limiting.
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