Tropical Andean forests are highly susceptible to nutrient inputs--rapid effects of experimental N and P addition to an Ecuadorian montane forest. - Homeier J; Hertel D; Camenzind T; Cumbicus NL; Maraun M; Martinson GO; Poma LN; Rillig MC; Sandmann D; Scheu S; Veldkamp E; Wilcke W; et al. (PloS one, 2012)