DIVA-GIS

Are you interested in better software for Species Distribution Modeling (ecological niche modeling; climate envelope modeling)? DIVA-GIS provides some functionality that is particularly useful to learn how it all works.

For more advanced methods, you can try the dismo package in R. See the Species distribution modeling with R vignette for an introduction.

And, if you want, you can display the results in DIVA-GIS...