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Posted by ambroise on 06 Jun 2011 at 13:38 GMT

Kemena (12°33′ N–6°33′ W) and Sougoula (13°05′ N, –6°53′ W)

Coordinates are: Kemena (13°7'30.50"N, 6°54'46.30"W) and Sougoula (13°7'30.50"N, 6°54'46.30"W) (see Oliveira et al., ref. 19)

No competing interests declared.

RE: Coordinates

skamhawi replied to ambroise on 03 Aug 2011 at 17:20 GMT

We thank ambroise for spotting this error; the study villages in Oliveira et al 2009 and the present article are indeed the same and the correct coordinates are as was specified in the former publication. We apologise for this typographical error.

No competing interests declared.