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. 2023 Jul 27;7(9):1480–1489. doi: 10.1038/s41559-023-02128-3

Fig. 1. Schematic outlining the study methodology.

Fig. 1

a, Visualization of the three simulated scenarios related to the CRC. Scenario A performs simulations on a ‘pristine’ landscape with no habitat fragmentation (that is, the CRC was absent from this scenario). Scenario B models the effect of the CRC as random habitat loss across the landscape. Scenario C models the effect of the CRC as a loss in habitat in which ‘habitat islands’ remained around the localities where early tetrapods occurred. b, An overview of the model input data, parameters and predicted outputs. Ar, Artinskian; As, Asselian; Ba, Bashkirian; Gz, Gzhelian; Ks, Kasimovian; Ku, Kungurian; Mo, Moscovian; Sa, Sakmarian.