Fig. 3

Volume differences (m3) for four enclosed plots and its surroundings measured with UAV from 2018 to 2020. Legend: Total volumes were measured during four time periods (F1 = September 2018, F2 = February 2019, F3 = December 2019 and F4 = November 2020) in four different plots (A-D). The non-grazing plots refer to the enclosed plots not accessible by Galician feral horses. Grazing plots are the immediate surroundings of the mentioned enclosed plots that were accessible by Galician feral horses