The distribution of displacements <i>P</i>(Δ<i>r</i>): heterogeneity of results found in the literature.

<p>Each horizontal line corresponds to a different dataset. Lines extend from the minimum Δ<i>r</i> (<i>i.e.</i> the spatial resolution of the data or the minimum value considered for the fit of the distribution), to the maximal length of displacement considered (both in meters). Colours correspond to the model fitting <i>P</i>(Δ<i>r</i>) according to the study reported at the end of each line. If the distribution is not unique, but varies for different ranges of Δ<i>r</i>, the line is divided in segments. Lines are marked with ‘∗’ if the corresponding data is modelled as a sequence of two distributions of the same type with different parameters, for different ranges Δ<i>r</i>. Refs [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0171686#pone.0171686.ref002" target="_blank">2</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0171686#pone.0171686.ref006" target="_blank">6</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0171686#pone.0171686.ref018" target="_blank">18</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0171686#pone.0171686.ref030" target="_blank">30</a>] analyse more than one dataset. In [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0171686#pone.0171686.ref013" target="_blank">13</a>] the authors analyse the same dataset for different ranges Δ<i>r</i>. A more detailed table is presented in section “Related Work”.