These datafiles are used for the analyses presented in "Cross-boundary human impacts compromise the Serengeti-Mara ecosystem" by Veldhuis et al (2019) Science 29 Mar 2019. Vol. 363, Issue 6434, pp. 1424-1428. DOI: 10.1126/science.aav0564. Each folder contains data on different aspects of the paper and includes a readme files with contact information for further enquiries. Detailed information on the data sources and methods for the analyses can be found in the supplementary material of the paper