A closer look at the functions behind ecosystem multifunctionality: A review

G.G., A.E., L.P., F.T.M. and M.G.A.v.d.H. are supported through the 2015–2016 BiodivERsA COFUND call for research proposals (Digging Deeper Project), with the national funders Swiss National Science Foundation (grant 31BD30-172466), Ministerio de Economia y Competitividad (Digging_Deeper, Ref. PCIN-2016-028) and Agence Nationale de la Recherche (ANR, France; grant ANR-16-EBI3-0004-01). S.B., C.H. and M.G.A.v.d.H are funded by the Swiss National Science Foundation (grant 166079). E.M.O., R.W. and M.G.A.v.d.H. are supported by the Mercator Foundation Switzerland and ETHZ World Food System Center. G.G., A.E., E.M.O., C.H., S.B., R.W. and M.G.A.v.d.H. are funded by Agroscope. G.G., and L.P. are supported by the French National Institute for Agricultural Research (INRA). F.T.M. is supported by the European Research Council [ERC Grant Agreement 647038 (BIODESERT)].