This chart depicts the Cherson Haplogroup Diversity Index (CHDI) for each country. The CHDI is calculated by applying the Shannon Diversity Index to human haplogroup distributions. Shannon Diversity is normally applied to species ecology, measuring both species richness (number of types) and species evenness (number of individuals of each type). The CHDI substitutes global haplogroup data, compiled for each country by Cherson, for species data. A higher number indicates greater diversity. To zoom in on the map use a scrolling device or the slider in the lower right corner. Select a specific haplogroup on the Regions menu (upper right corner), to view the data for that haplogroup alone. This map may be dragged and zoomed.
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Data Sources and Notes
Many interactive ways of looking at the data are available. The complete data file is available in a variety of formats such as CSV, XLS, or MDB.
Haplogroup naming follows the ISOGG 2012 classification system: http://www.isogg.org/tree/index.html. Notes: 1) In the above charts, haplogroup letter statistics include all sub-groups; sub-haplogroup letter statistics include only that sub-group; e.g., a 'G' in the haplogroup chart includes all G sub-branches (M201 marker plus all progeny; G, G1, G2, etc.), while a 'G' in the sub-haplogroup chart includes only the G as a sub-haplogroup (i.e., M201 marker only); 2) Due to varying levels of granularity in the studies combined in these data, there is some ambiguity in the sub-haplogroup results (study X may have taken its haplogrouping to the level of G2a3a, study Y only to G2a, and study Z only to G); the haplogroup results are therefore more definitive than the sub-haplogroup results in the current state of the data. Please see methods page for detailed information about data sources, ambiguities, errors, and risks inherent in this type of study.
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Data last updated on 7/20/2010, next update expected 1/1/2015
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