Skip to main content
. 2023 Jan 11;14:165. doi: 10.1038/s41467-023-35788-7

Fig. 2. The associations between African winter locations and genotypes of willow warblers tracked from the migratory divide.

Fig. 2

a Histogram depicting bimodality in the frequencies of where birds from the migratory divide chose to cross Mediterranean. b Mean (whiskers depict ± standard deviations) winter longitudes for each of the nine combined genotypes of InvP-Ch1 and InvP-Ch5, illustrated separately for birds with (red) and without (dark gray) the MARB-a. On the Y-axis, the labels stand for genotype on InvP-Ch1, InvP-Ch5 (Acr homozygote for acredula allele, Het heterozygote, Tro homozygote for trochilus allele) and whether MARB-a is absent “0” or present “1”. Dotted lines connect the genotypes of both chromosomal inversions that have or do not have MARB-a. c Breeding and winter locations for birds from the hybrid zone with (red) and without (dark gray) the MARB-a. Hollow circles show estimates of longitudes where birds crossed the Mediterranean Sea. The lines connect locations of each individual. Error bars of locations in Africa show standard deviations in longitude and latitude of the main winter site of each bird. Source data are provided as a Source Data file.