I use the dismo package a lot for SDMs in R (see link above from Patrick). It facilitates different algorithms. Also, if you are using Maxent, you might be interested in our package 'ENMeval', which helps "tune" the Maxent settings and provides several evaluation statistics.
Hi Carolina, I like a lot of the vignette of Dismo package by Robert Hijmans and Jane Elith. That is what Patrick Mcintyre recommended to you: https://cran.r-project.org/web/packages/dismo/vignettes/sdm.pdf
This manual is fantastic, ease to follow, intuitive and complete.
if you want to use the R package biomod2 for modeling, there are vignettes available with code which you can follow: http://finzi.psych.upenn.edu/library/biomod2/doc/
You can combine this with the manual that Matheus posted, and furthermore check the tutorials for BIOMOD package which can be useful (note that package BIOMOD is not supported any more, biomod2 is the current one, but the documentation for BIOMOD is still very useful):