10.1371/journal.pone.0110854.g002 Jens Schirmel Jens Schirmel Martin Alt Martin Alt Isabell Rudolph Isabell Rudolph Martin H. Entling Martin H. Entling Comparison of species richness (a–c), densities (d–f), and Simpson diversity (g–i) of orthopterans, carabids, and spiders between irrigated and non-irrigated meadows (mean and SE). Public Library of Science 2014 nature conservation efforts invertebrate indicator taxa diversity Traditional Flood Irrigation species composition irrigated Lowland Meadows Lowland meadow irrigation 2014-10-23 03:27:31 Figure https://plos.figshare.com/articles/figure/_Comparison_of_species_richness_a_8211_c_densities_d_8211_f_and_Simpson_diversity_g_8211_i_of_orthopterans_carabids_and_spiders_between_irrigated_and_non_irrigated_meadows_mean_and_SE_/1213572 <p>Differences of species richness and densities were tested with Poisson GLM’s and of Simpson diversity (1−D) with non-parametric wilcoxon rang sum tests.</p>