Fig. 4From: Comparing biodiversity effects among ecosystem engineers of contrasting strength: macrofauna diversity in Zostera noltii and Spartina anglica vegetationsMean abundance (ind m−2 ± SE) observed for each feeding mode at the four different habitats. Closed bars represent endofauna, open bars epifauna. Endofaunal and epifaunal averages were analyzed separately for significant differences between the four habitats. Letters indicate significant differences among habits using a posteriori Tukey HSD testsBack to article page