Fig. 2
From: Prevalence and relationship of endosymbiotic Wolbachia in the butterfly genus Erebia
Map of Europe and the Alps depicting all sampled individuals. The two most densely sampled regions are further depicted in detail. Species are shown in different colors, where closed and open circles depict individuals with or without Wolbachia respectively (see also Additional file 2: Table S2). The map of Europe was obtained and modified from the U.S. National Parks Service—https://www.nps.gov. All other maps were obtained and modified from Bing Maps https://www.bing.com. All map data was retrieved via the OpenStreetMap package in R—https://github.com/ifellows/ROSM