Data availability statement
CLUTO software modules are available for download from Karypis Lab website (http://glaros.dtc.umn.edu/gkhome/cluto/cluto/download ). Plot data used in our analyses are available at: https://www.environment.nsw.gov.au/research/Vegetationinformationsystem.htm (NSW DPIE 2020, accessed 2nd August 2016). All analyses were performed on an adjacency matrix of similarity (1-Bray-Curtis dissimilarity) between the objects to be clustered. Data were imported in a plain text file with n + 1 lines, the first line containing the number of rows and the remaining n lines containing adjacency values for each row (Karypis 2003).