Extrafloral nectar (EFN) is rich in sugars and amino acids and mediates the protection-for-food mutualism between EFN-plants and ants. We analyzed (via HPLC) 8 samples for the 3 EFN-tree species (Ailanthus altissima, Melia azedarach, Triadica coch...

Trees with extrafloral nectaries (EFN) are common in tropical and subtropical forests and the presence of EFN trees within a tree community may influence tree growth. In this dataset EFN-tree-visiting arthropods were collected on all EFN tree spec...

Soil chemical laboratory analyses of all 27 comparative study plots. Contents of exchangable Na, K, Ca, Mg, Fe, Al, H, effective Cation Exchange Capacity (CECeff; extraction with 1 M NH4Cl) and base saturation (BS) from soil horizons of each soil ...

We sampled trophobioses from 21 May to 20 August 2011 on site A. We selected in total 146 plots from tree diversity level 1, 2, 4, 8 and 16. Because there are only two plots with tree diversity 24, we did not study the highest available tree dive...

Trap nests (eigth traps per plot; four traps each attached to a wooden post; located at two randomly selected corners the corners of the central 10 x 10 m subplot; traps belonging to the same wooden post in a plot are marked with a "-" or left wit...

In all four seasons (summer 2008, autumn 2008, spring 2009 and winter 2010) the gravimetric soil water content of the mineral soil in up to 6 soil layers was determined. Soil sampling was performed in parallel with nitrate and ammonium extractions.