Fig. 5From: Spatial patterns of genetic diversity, community composition and occurrence of native and non-native amphipods in naturally replicated tributary streams a Allelic richness of Gammarus fossarum in headwater and outlet populations. b Heterozygosity of G. fossarum in headwater and outlet populations. c M-ratio of G. fossarum in headwater and outlet populations. Boxplots show the median (solid line) and 25 and 75th percentiles (boxes) and values ≤ 1.5 times the range (whiskers). Values larger than that are given as points Back to article page