Fig. 1
Local Moran’s index (Ii) values for each species’ measured temperature difference, together with the phylogeny used. The value of Ii denotes the degree of autocorrelation between closely-related species, and each value calculated has a corresponding significance associated with it: red dots denote significant Ii values, where p < 0.05. The figure demonstrates that significant local autocorrelation is concentrated within Pelargonium and the Asteraceae, and these significant values of Ii are positive, meaning that these species are positively autocorrelated (e.g. more similar to each other than would be expected due to random processes)