Figure 2 . Overview of the data and summary of hypothesis
1 on differences in species richness across beach levels. A .
Overview of a Monocelididae, as a representation of a typical proseriate
flatworm. The main internal and external structures that considered in
the analyses are marked. B. Distribution of the sampled beaches
in the Western Mediterranean, with latitude and longitude reported as
WGS84 reference coordinates. The size of the circle is proportional to
the total number of species found in each beach (see box). C.Box plot showing the distribution of the number of species in each
sample, divided by beach level. Each value is jittered vertically (and
to a minimum extent also horizontally) to allow a visualization of
sample size. The non-independence of the data is accounted for in the
model, and the plot with the identity of the beach for each dot is shown
in Supplementary Figure S1.