Daniel S. Gruner. 2004. Attenuation of top-down and bottom-up forces in a complex terrestrial community. Ecology 85:3010–3022.

Appendix D. A figure showing cumulative arthropod biomass frequency distributions by experimental treatment.

FIG. D1: The cumulative biomass frequency distributions of all arthropods collected from each experimental treatment in April and May 2001. Each line represents the cumulative proportion of individuals within treatments as a function of increasing dry biomass (natural log transformed). Arthropods are aggregated across all replicates within treatment and tested for distributional differences using the Kolmogorov-Smirnov 2-sample D statistic, adjusted for six post hoc tests within each component (Bonferroni,  = 0.0083). Smaller juveniles generally dominated herbivore and predator recruitment in response to treatments, and detritivores shifted composition to a greater proportion of small-bodied species in fertilized treatments (e.g., Collembola). The only two nonsignificant pairwise comparisons from total arthropod abundance-biomass distributions were within levels of the fertilization treatment (unfertilized: control vs. caged, Kolmogorov-Smirnov 2-sample D = 0.208, uncorrected P = 0.021; fertilized: control vs. caged, D = 0.196, P = 0.021).