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Publication - Professor Fiona Jordan

    Language trees support the express-train sequence of Austronesian expansion


    Gray, RD & Jordan, FM, 2000, ‘Language trees support the express-train sequence of Austronesian expansion’. Nature, vol 405., pp. 1052-1055


    Languages, like molecules, document evolutionary history. Darwin1 observed that evolutionary change in languages greatly resembled the processes of biological evolution: inheritance from a common ancestor and convergent evolution operate in both. Despite many suggestions, few attempts have been made to apply the phylogenetic methods used in biology to linguistic data. Here we report a parsimony analysis of a large language data set. We use this analysis to test competing hypotheses: the 'express- train' and the 'entangled-bank' models for the colonization of the Pacific by Austronesian-speaking peoples. The parsimony analysis of a matrix of 77 Austronesian languages with 5,185 lexical items produced a single most-parsimonious tree. The express-train model was converted into an ordered geographical character and mapped onto the language tree. We found that the topology of the language tree was highly compatible with the express-train model.

    Full details in the University publications repository