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. 2018 Dec 5;18:184. doi: 10.1186/s12862-018-1305-z

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© The Author(s). 2018

Open Access This 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. 7 — Alpha-shape sensitivity analysis. a, optimal refinement coefficients for study species over a range of point cloud densities. b, the associated computational time to find the optimum refinement coefficient for a given point cloud density