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. 2023 Mar 28;114(4):354–366. doi: 10.1093/jhered/esad002

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© The American Genetic Association. 2023.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2. — Map of contiguous United States and Alaska divided into Lead Regions according to the U.S. Fish & Wildlife Service. The distribution of GR index across species in each Lead Region and a featured vertebrate from each Lead Region are shown. Hellbender photograph taken by Brian Gratwicke (https://creativecommons.org/licenses/by/2.0/deed.en).