Knowledge of the environmental features affecting habitat selection by animals is im- portant for designing wildlife management and conservation policies. The package ade- habitat for the R software is designed to provide a computing environment for the analysis and modelling of such relationships. This paper focuses on the preliminary steps of data exploration and analysis, performed prior to a more formal modelling of habitat selec- tion. In this context, I illustrate the use of a factorial analysis, the K-select analysis. This method is a factorial decomposition of marginality, one measure of habitat selection. This method was chosen to present the package because it illustrates clearly many of its features (home range estimation, spatial analyses, graphical possibilities, etc.). I strongly stress the powerful capabilities of factorial methods for data analysis, using as an exam- ple the analysis of habitat selection by the wild boar (Sus scrofa L.) in a Mediterranean environment.
Clement Calenge. (2007). Exploring Habitat Selection by Wildlife with adehabitat. Journal of Statistical Software, 22(6), 1–19. https://doi.org/http://www.jstatsoft.org/