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. 2022 May 30;7:28. doi: 10.1186/s40850-022-00129-6

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 3 — Distribution of the 49 sample sites in the inner area of the Carpathian Basin. (A) and the location of the studied area in Europe (B). The circles’ area corresponds with the number of the sampled individuals. The inner area and the frame of the circles show the D-loop and CytB haplotypes, respectively. The colors and shades of circles indicate their lineage membership (blue shades: Northern, red: Circumpolar, green: Southern). Country borders are shown by grey dotted lines. Base map was generated by QGIS software using layers freely available from European Environment Agency (EEA). Color online only