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. 2022 Dec 1;12:20266. doi: 10.1038/s41598-022-23754-0

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© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2022, corrected publication 2023

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Ridge plots of frequency distributions of distances to the upper trout limit for UPRLIMET compared to trout occurrence and habitat distributions from Oregon Department of Forestry (ODF), trout occurrence distributions from the Interagency Coastal Cutthroat Trout (ICCT) database, Fransen et al. (2006) optimal model¹³, and 20% slope cutoff for western Oregon. Positive numbers represent overestimation relative to UPRLIMET and negative numbers are an underestimation. Note that the previously used estimates for upper trout limit by Fransen et al. (2006) optimal¹³, a 20% slope, and the ICCT database are biased towards underestimation and ODF overestimates. X-axis is distance to UPRLIMET in kilometers, and y-axis is relative frequency.