Functional diversity (FDses) of dragonfly and damselfly assemblages across the three European study regions of Great Britain (a, d, g), Bavaria (d, e, h), and Catalonia (c, f, i) based on multiple traits (a, b, c, d, e, f):  body size, relative abdomen length, relative wing length, and colour, and based on body size alone (g, h, i). FDses >0 indicates morphological overdispersion and FDses <0 morphological underdispersion relative to random assemblages of equal richness. Boxes indicate first quartile, median, and third quartile.