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Ecological niche overlap along the discriminant factor. Ecological niche overlap between An. gambiae M and S forms (A), M and An. arabiensis (B) and S and An. arabiensis (C). Left, frequency plot along the discriminant factor showing niche breadth and overlap; Right, schematic representation of the discriminant function showing the contribution of the different eco-geographical variables (EGVs, see Methods) to the discriminant factor.
