“…The seres included successional stages on various spoil heaps from brown coal, black coal and uranium mining, sand and sand-gravel pits, limestone quarries, acidic rock quarries, basalt quarries, extracted peatlands, road verges, ploughed and then abandoned strips along the state border (the former "iron curtain"), river gravel bars, artificial islands and barriers in fishponds, the bottom of a former water reservoir, sedimentary basins, ruderal urban sites, abandoned fields, bulldozed sites of forests damaged by air pollution, forest clearings and burnt forests. Most of the seres are described in separate studies or summarized in papers (Prach et al 2013(Prach et al , 2014(Prach et al , 2016. In these references, there are details of the seres, including determination of successional age, which was based on rather precise records provided by mining companies, land owners and our own observations.…”