Phytogeographical analysis of a treeline community in northern Yukon (NW-Canada)

The phytogeography of a treeline Salix pulchra community from the northern Yukon is studied by means of classification and ordination on a matrix of species and Operational Geographic Units. The basic data were obtained from the global distributions of the species. Results suggest that this community is an example of pre-glacial treeline vegetation which survived in ice-free areas within ancient Beringia.Abbreviations OGV = Operational Geographical Unit