Correction to: Nature https://doi.org/10.1038/s41586-018-0189-9, published online 06 June 2018.

In the HTML version of this Article, author ‘Filipa Cox’ had no affiliation in the author list, although she was correctly associated with affiliation 3 (Earth & Environmental Sciences, University of Manchester, Manchester, UK) in the PDF. In addition, the blue circles for ‘oak’ were missing from Extended Data Fig. 1. These errors have been corrected online.