“…This, for example, has been demonstrated for the effects of fertilization (King and Hutchinson, 1980;Birkhofer et al, 2008), grazing (King and Hutchinson, 1976;Ponge et al, 2015), and cutting (Jensen et al, 1973;Lemanski and Scheu, 2015). As a consequence, critical shifts within soil food webs may occur (Haubert et al, 2009;Birkhofer et al, 2011;Crotty et al, 2014;Klarner et al, 2014). Unfortunately, the greening measures recently implemented by the European Commission to protect and maintain species-rich permanent grasslands do not take such human interventions into account (Common Agricultural Policy 2013: Regulation No 1307.…”