Fig. 2
The Freshwater macroinvertebrate community composition changes in streams with high pesticide pollution. The stacked bars show the mean proportions of macroinvertebrate families on the overall number of individuals observed in lowly polluted (maximum toxic unit TUmax < 10–3) and in highly polluted streams (TUmax ≥ 10–3). The number of individuals ranged from 32 to 154 (mean: 94) in the 5 lowly polluted streams and from 37 to 462 (mean: 152) in the 8 highly polluted streams. Families that were recorded in at least 50% of the streams are shown in in bold. Taxa shown in blue have been classified as being at risk in the adapted SPEARpesticides indicator for East African streams, taxa shown in red have been classified not at risk