Table 2 in Addition to Sweden's freshwater sponge fauna and a phylogeographic study of Spongilla lacustris (Spongillida, Porifera) in southern Sweden

Table 2. Co-occurrence of freshwater sponges at different sites in the present study. On the diagonal are the number of sites where the species was found, lower triangle gives the number of co-occurrences, and upper diagonal shows Sørensen-Dice indices of species association (ranging from 0 – never found together to 1 – always found together). At two sites the three species Spongilla lacustris (Linnaeus, 1759), Ephydatia muelleri (Lieberkühn, 1856) and Eunapius fragilis (Leidy, 1851) were found together; at no site did all four species co-occur.
Spongilla lacustrisEphydatia fluviatilisEphydatia muelleriEunapius fragilisSpongilla lacustris3000.400.18Ephydatia fluviatilis0100Ephydatia muelleri80100Eunapius fragilis3003