Skip to main content
Fig. 2 | BMC Ecology and Evolution

Fig. 2

From: Patterns of introgression vary within an avian hybrid zone

Fig. 2

Genetic composition (hybrid index (HI)/interspecific heterozygosity) in the center of the Saltmarsh-Nelsonā€™s hybrid zone. The bottom panel shows the distribution of genetic composition for all nestling and adult birds, and the upper two panels show the distributions by sex. Colored circles indicate the corresponding genotypic class for the combination of HI and interspecific heterozygosity as follows: dark blueā€‰=ā€‰pure Nelsonā€™s Sparrows, light blueā€‰=ā€‰backcrossed Nelsonā€™s Sparrows, grayā€‰=ā€‰recent generation hybrids, yellowā€‰=ā€‰backcrossed Saltmarsh Sparrows, and orangeā€‰=ā€‰pure Saltmarsh Sparrows. Percentages represent the frequency of each genotypic class within the respective frame

Back to article page