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. 2020 Mar 20;10:5175. doi: 10.1038/s41598-020-61533-x

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Cumulative (CDF, (a) and complementary cumulative distribution (cCDF, b) function for the connectivity index (IC), obtained for each watershed (colour-coded according to the watersheds drainage area, from blue to red for increasing values). Within each watershed large portions of the landscape tend to present low values of connectivity (a), while generally smaller extents show comparable high connectivity (b). Clusters of disconnected (a) or connected (b) landscapes can be seen [decreasing slope in the CDF or cCDF, where the gradient increases again later], highlighting the existence of diverse (across watersheds) but consistent (within watersheds) morphodynamics units, acting as sinks or source of sediments.