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Questions tagged [maxent]

Software and algorithm for ecological niche modeling.

Maxent is a mathematically rigorous method for modeling species geographic distributions, based on known occurrences and environmental (especially climatic) predictor variables, introduced in a 2006 paper by Steven J. Phillips, Robert P. Anderson, and Robert E. Schapire. It is based on maximum entropy modeling and implemented as a Java program, provided by the authors, and also implemented in some packages (for example dismo,maxent) . The 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 probability of suitable conditions for the given species. It is free for education and research, but not for commercial purposes.

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Can I consider as continuous data vegetation layers on Maxent?

I would like to know if we can consider as continuous data vegetal layers when disposed on seperate different .asc files (e.g.: Barren.asc; Water.asc; Evergreen Broadleaf Trees.asc; etc.)? The data on these maps seem to be in percentages (from 0 to…
Zack B.
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Predicting map using maxent software

I am in the process of developing predicting map in MAXENT. I have current data of distribution of my trees species in tropical forest. I need to use Maxent software and Arcgis 10.3 to find the potential area where this tree species can be found. My…
Adolph
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java.lang.NumberFormatException: For input string: "-?"

I'm getting an error in Maxent which arises from one of the output files created by Maxent, in this case the _ASCII_novel.asc at row 159 column 444. However, the data in this position appears to be OK. I saw a similar question where the error noted…
Morani
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MAXENT and shapefiles?

I'm trying to make a Potential Distribution map for an animal species that, we think, should be dependent on edaphic variables. The problem is the only maps I could find with edaphic information are shapefiles with the info stored in their attribute…
Dante Nahuel Ciai
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Maxent Error reading output row and column

I need to predict geographical distribution of an insect using maxent. I have converted the bioclim data variable to ascii format to use with the collection records. After loading the files and when maxent has successfully written the output ascii…
Beryn
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Fixing raster.asc to work with Maxent?

How to fix the raster.asc to work with Maxent? Running Maxent with raster from WorldClim and others as Altitude, LandCover, etc. I have problems because shows up one error (have different geographic dimensions). I have been trying to fix that in…
Carlos Martin
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