Correction to: New Forests (2021) 52:679–695 https://doi.org/10.1007/s11056-020-09814-1

The article "Influence of heterozygosity and competition on morphological tree characteristics of Quercus rubra L.: a new single‑tree based approach" written by Katharina Burkardt · Tim Pettenkofer· Christian Ammer· Oliver Gailing · Ludger Leinemann · Dominik Seidel · Torsten Vor was originally published electronically on the publisher's internet portal on 3rd November 2020 without open access. The article is funded under Open Access funding enabled and organized by Projekt DEAL. Hence the article is forthwith distributed 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.

The funding note has been added in the original publication.