The main purpose of the R package Geneland is to process geo-referenced individual multilocus genetic data and to detect population structure, i.e sub-populations. Although populations refers often to a genetic structure only, it is often realistic to assume that populations are spatially organised. Therefore it makes sense not only to estimate population membership of each individual of a dataset but also to try to delineate spatial domains of each such population.
Toward this aim, Geneland makes use of both spatial and genetic informations to estimate the number of populations in a dataset and delineate their spatial organisation.

Geneland
  estimates the number of populations present in the dataset
  produces maps giving the population memberships of each geographical pixel either as probabilities or as population label
  produces files giving population membership of each individuals
  computes pair-wise Fst for all pairs of inferred populations