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. 2018 Jun 22;17:22. doi: 10.1186/s12942-018-0142-z

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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 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.

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Fig. 4 — Ecological niche similarity tests: a Background similarity tests were developed in a series of two-way comparisons. Occurrences (y-axis) were compared against the backgrounds of each other species (x-axis). Gray fill indicates that the null hypothesis of no difference between niches was not rejected (p > 0.05), and white squares denote hypothesis rejected; b Convex polyhedrons derived from occurrences of each rodent species (yellow) and human HPS cases (red) in a multidimensional environmental space (principal components 1, 2, and 3, obtained from the original bioclimatic layers). Note that the environmental space occupied by human cases are contained within the set of environments used by the rodent species