Extended Data Table 1 Patterns of introgression between willow flycatchers in San Diego and neighbouring populations

From: Historical DNA reveals climate adaptation in an endangered songbird

  1. D statistics quantifying the number of derived alleles shared between the contemporary San Diego population (SD Present) and individuals in the Pacific Northwest (PNW), Desert Southwest (SW), Interior West (IW), and East (East) for all loci (n = 128,775) and climate-linked loci (n = 232). We included the alder flycatcher as an outgroup in the test topology (((P1, P2), P3), O). Significant D statistics (Z-score > 3) are highlighted in bold.