Fig. 3

Spore density of each family of Glomeromycota in each island and in the four forest fragments (Terra Brava, TB; Serreta, TS; Lombo Gordo, SG; Ribeira Quente, SR) for members of the families: a-b)Acaulosporaceae; c-e) Diversisporaceaeae; f-g) Gigasporaceae; h-j) Glomeraceae, obtained during three sampling dates time (September 2012, AU(1); May 2013, SP; September 2013, AU(2)). Bold line represents median, x signals the media and the bottom and top of the box represent lower and upper quartiles. Different letters above each box indicate significant differences in AMF spore density between fragments or sampling date (Kruskal-Wallis test, p < 0.05)