• Past HGFs altered terrestrial and limnic environments through niche construction. • Plant and faunal ecology successions impacted past human decision-making. • HGF activity aligned with lake stage changes of carbonates, water level and trophy. • Woodland and telmatic belt clearances extensively impacted ecological changes. • Human activity determined the degree of local grazing by large herbivores.
Blaesild et al. (Wed,) studied this question.