Figure 1
From: Genetic footprint of population fragmentation and contemporary collapse in a freshwater cetacean

Maps showing the sampling distribution of the Yangtze finless porpoises in the Yangtze River. The top-left insert shows the location of the studied area highlighted by a red rectangle. On the right, the map shows the sampling locations (orange triangles) and their acronyms based on the neighbouring cities. Figure created using ArcGIS 10.3 software using the open source data from the ETOPO1 Global Relief Model63 (https://www.ngdc.noaa.gov/mgg/global/).