Fig. 8.

BSP reconstruction of AvCoV strains detected in chickens (a) and in wild and synanthropic birds (b). Purple branches, chicken sequences; Yellow branches, pigeon sequences; Blue branches, sequences from wild birds. N, number of transmissions between different bird species. The blue arrow represents the increase in transmission between different bird species. The effective number of the population is represented on the Y-axis. Time is represented on the X-axis. Black lines indicate the medians and blue lines the credibility based on 95% highest posterior density (HPD) intervals. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article).