Microsatellite data - fragment lengths 1st column: Sample ID 2nd column: geographic location coordinates: Kasakalawe (31.067°E 8.783°S) Mbita Island (31.087°E 8.753°S) Katanka (31.118°E 8.740°S) Wonzye (31.133°E 8.722°S) Muina (31.118°E 8.719°S) Mtondwe Island (31.117°E 8.693°S) Kasenga (31.136°E 8.709°S) Kasenga Rocks (31.153°E 8.723°S) Muzumwa (31.205°E 8.700°S) Isanga (31.189°E 8.653°S) Kalambo (31.189°E 8.609°S) 3rd+4th column: allele sizes for locus UNH154 5th+6th column: allele sizes for locus UNH130 7th+8th column: allele sizes for locus Pzeb3 9th+10th column: allele sizes for locus UNH908 11th+12th column: allele sizes for locus Pzeb2 13th+14th column: allele sizes for locus UME003 15th+16th column: allele sizes for locus UME002 17th+18th column: allele sizes for locus TmoM11 19th+20th column: allele sizes for locus TmoM27 missing data = '?'