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Table 2 Population structure of Galápagos marine iguanas.

From: Progressive colonization and restricted gene flow shape island-dependent population structure in Galápagos marine iguanas (Amblyrhynchus cristatus)

  CR (FST) Microsatellite loci (FST)
Within Islands   
Fernandina 0.00 ± 0.00 0.00 ± 0.00
Western Isabela 0.12 ± 0.07 0.03 ± 0.01
Santa Fé 0.16 ± 0.09 0.00 ± 0.00
San Cristóbal 0.87 ± 0.00 0.11 ± 0.09
Within/Between   
North 0.18 ± 0.08 0.13 ± 0.08
East/Central 0.55 ± 0.27 0.11 ± 0.05
West 0.09 ± 0.08 0.01 ± 0.01
North vs. East/Central 0.74 ± 0.12 0.14 ± 0.04
North vs. West 0.42 ± 0.19 0.12 ± 0.03
East/Central vs. West 0.70 ± 0.12 0.10 ± 0.02
Among all 23 0.58 ± 0.26 0.12 ± 0.05
  1. Population structure of Galápagos marine iguanas within and between islands and major geographic regions based on CR data (FST values) and 13 microsatellite loci (FST values).
  2. Only islands with multiple samples could be used to examine within-island differentiation. The two populations from southeastern Isabela (IBA and IWE) were included in the east/central since they show a higher genetic affinity to those islands. Standard deviations represent the mean over all pairwise comparisons.