Fig. 1
From: Stoichiometry of carbon, nitrogen and phosphorus is closely linked to trophic modes in orchids
Non-metric multidimensional scaling (NMDS) plot showing differences in stoichiometric proportion of elements between tropic modes in orchids. Carbon (C), nitrogen (N), phosphorus (P) in orchid species representing different trophies: autotrophy (AT), mixotrophy (MX) and mycoheterotrophy (MH) in comparison with reference autotrophic non-orchid species (REF). Fitted vectors display the response variables: stoichiometric proportion of elements (molar) C:N, C:P and N:P in the ordination space and show the differences between the groups in association with these variables. (PERMANOVA: Pseudo-F = 36.189; P = 0.001, p-values based on 999 permutations)