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. 2018 Jul 25;8:11231. doi: 10.1038/s41598-018-29395-6

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© The Author(s) 2018

Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Spatial interpolation of ancestry coefficients of Agassiz’s desert tortoises (Gopherus agassizii) using Krig modeling, superimposed on a shaded relief (made with Natural Earth. Free vector and raster map data@http://www.naturalearthdata.com/downloads/10m-raster-data/10m-manual-shaded-relief/). (A) Cluster 1; (B) Cluster 2; (C) Cluster 3; (D) Cluster 4; (E) Cluster 5. The last map (F) combines areas of maximal ancestry proportion for each of the five genetic groups. In F, the total area was trimmed using the species distribution model (darker grey area). Contour lines indicate 0.1–0.9 quantiles. The scale bar in the smaller map in E is equivalent to 500 km. The points highlighted in the white, transparent circle indicate to the population at Daggett. Maps were generated with the R package raster v2.6 (https://cran.r-project.org/web/packages/raster/index.html).