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. 2022 Sep 29;129(5):281–294. doi: 10.1038/s41437-022-00562-w

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© The Author(s) 2022

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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Fig. 3 — a Sampling location of Western (WC; yellow) and Eastern (EC; red) Canary individuals, off the coast of north-western Africa. Sampled islands are named. Large dots indicate individuals sampled for WGS and population genomics analyses; small transparent dots are barn owl observations used in niche analysis. Dashed lines group islands according to barn owl taxonomy. b Climatic niche occupied by the two Canary populations. The first axis varies from cold and wet to hot arid environments. c Genome-wide F_ST comparison between individuals from each Canary population. Each dot represents a 100kbp window. Alternating grey colours denote different chromosomes. Dashed line indicates the 5 SD F_ST threshold used to identify genomic regions of high differentiation overlaid with F_ST^WC, highlighted in yellow and F_ST^EC in red. Arrows denote the location of genes linked with response to hypoxia in WC; and the cluster of four genes linked to morphological ratios and the main gene related to blood pressure in EC. d Same F_ST windows and threshold as in c plotted against the difference between F_ST^WC and F_ST^EC, clearly highlight the two sets of windows putatively under local adaptation.