Fig. 1.

Microarthropod densities in the three soil layers at the four different altitudes (a), and density of the four microarthropod taxa in the three soil horizons in a tropical montane rain forest in Southern Ecuador (b). For Fig. 1a the densities of all microarthropod taxa were summed up; for Fig. 1b the mean of the four altitudes in given. Bars and uneven standard errors represent back-transformed means of log-transformed data (for “Statistical analysis” see text)