Figure S1. Species range boundary density across all groups around the South China border. A=Amphibians, B=Birds, M=Mammals, O=Odonata, R=Reptiles. Areas with 1-9 borders are shown in grey, those above 10 are shown in dark red. National boundaries are clear for all groups present just based on increased density of species range boundaries at these National boundaries despite the absence of any environmental changes across these regions.