Fig. 4From: Phylogeography of Diptychus maculatus (Cyprinidae) endemic to the northern margin of the QTP and Tien Shan regionBayesian skyline plots (BSPs) of five allopatric clades/subclades of Diptychus maculatus. The x-axis represents time in units of 1000Â years. The y-axis represents effective population size as N e Ï„ on a log scale. The black line depicts the median population size, and the shaded areas represent the 95Â % highest posterior density intervalsBack to article page