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. 2018 Nov 5;9:4621. doi: 10.1038/s41467-018-07049-5

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© The Author(s) 2018

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Fig. 2 — Recent changes in terrestrial human footprint and species extinction risk. a Shows a transition matrix in which any position represents the initial (x axis) and final (y axis) human footprint value (from 0 to 50) of global 1 km terrestrial grid cells; the colour scheme represents the number of individual cells in each particular transition state. b Shows a transition matrix in which any position represents the initial (x axis) and final (y axis) extinction risk category (from Least Concern to Extinct) of terrestrial mammal species; the colour scheme represent the number of individual species in each particular transition state