Fig. 3From: The hierarchy of multiple stressors’ effects on benthic invertebrates: a case study from the rivers Erft and Niers, GermanyVenn diagram of the variance in macroinvertebrate metrics. Numbers indicate the unique and shared portions (adjusted R2) of the variance in 21 macroinvertebrate metrics (Table 2) that are explained by physico-chemistry, micropollutants, morphological degradation and hydrological alteration. R2 values below zero are not shownBack to article page