Hartvigsen, G. 200x. Range limits. Encyclopedia of Life Sciences. Nature Publishing Group.

The range of a species is the area over which individuals of that species can be found. To understand range we need to consider the behavior of individuals (individual movement and the dispersal of propagules) and the biotic (resources, enemies, and competitors) and abiotic variables that influence the potential and actual range of species. The goal of this entry is to discuss these factors that influence range and the tools we use to attempt to describe, understand, and predict the distribution of species.