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. 2016 Jul 7;41(4):554–569. doi: 10.1111/tran.12131

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The information, practices and views in this article are those of the author(s) and do not necessarily reflect the opinion of the Royal Geographical Society (with IBG). © 2016 The Authors. Transactions of the Institute of British Geographers published by John Wiley & Sons Ltd on behalf of Royal Geographical Society (with The Institute of British Geographers).

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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The distinctiveness (left), dominance (middle) and regional integrity (right) indices for each combination with high global correspondence. (a) k = 3 isonymy groups and l = 3 genetic clusters. (b) k = 7 isonymy groups and l = 11 genetic clusters. (c) k = 20 isonymy groups and l = 15 genetic clusters