Summary of Bayesian probabilities of mesocosm samples being derived from the three source populations.

Every individual sampled from each mesocosm was estimated to have descended from each of the three possible source populations with probability Pr. Under the column heading for each source population is listed the number of mesocosm samples predicted to have come from that source population, based on the highest Pr value for that mesocosm. On the right side of the table is the percentage of mesocosm samples that were correctly assigned to their respective source populations with probability of Pr>0.5 or Pr>0.7. Probabilities were calculated using ten replicates of STRUCTURE [42] and permuted in CLUMPP [56].