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Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
Top row: number of descendants for the network of protected areas produced in the standard run (a) and long-lived (b) run. Bottom row: betweenness centrality for the standard (c) and long-lived (d) runs.