Fig. 7: Quantified crop occurrences per phase (a) and density of crop occurrences over time (b).

a The bars show the number of occurrences in the database for each type of crop per chronological phase. b Coloured areas show Kernel Density estimates of crop occurrences over the entire period for each crop. The vertical dashed lines indicate the limits of our 4 chrono-phases. Details about sample numbers are provided in Supplementary Table 3. Source data can be found at https://doi.org/10.5281/zenodo.14253277.