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. 2020 Jun 1;10:8882. doi: 10.1038/s41598-020-65755-x

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© The Author(s) 2020

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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Number of (A) body mass or (B) HB Length records for PEMA by five year bins from 3 different sources. The vast majority of records come from digitized natural history collections but were supplemented by records from national survey efforts in the late 1940–1950s and in the present.