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Table 3 Summary of demographic parameters for population pairs

From: The population genetics of wild chimpanzees in Cameroon and Nigeria suggests a positive role for selection in the evolution of chimpanzee subspecies

Comparison Migrants per generation* Population Size* Population Divergence*
Population 1 x Population 2   Into Pop. 1 Into Pop. 2 Ne Pop. 1 N e Pop. 2 N a T MRCA (kya)
P. t. ellioti x P. t. MLE 1.10 1.15 2,140 3,365 3,002 200,979
(Rainforest) troglodytes 95% CI 0.52 - 2.37 0.32 - 2.53 1,748 - 2,696 2,720 - 4,091 222 - 15,294 180,157 - 334,096
P. t. ellioti x P. t. MLE 1.58 0.79 2,633 9,084 7,208 254,553
(Ecotone) troglodytes 95% CI 1.03 - 2.34 0.20 - 1.71 1,984 - 3,282 7,549 - 10,961 1,493 - 45,421 202,149 - 328,715
P. t. ellioti x P. t. ellioti MLE 2.49 4.39 2,368 860 5,920 4,219
(Rainforest) (Ecotone) 95% CI 0.62 - 13.73 1.84 - 8.84 1,466 - 3,077 658 - 1,231 4,200 - 12,465 2,298 - 67,636
  1. *Demographic parameters were inferred in IMa [38]. These parameters were scaled assuming an mtDNA mutation rate of 1.64 x 10 – 7 [89], an intermediate microsatellite mutation rate of 7.75 x 10 - 5 [87], and 20-year generation time [90]. Demographic estimates assuming different microsatellite mutation rates are shown in Additional file 11.