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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: Frequent but asymmetric niche shifts in Bulbophyllum orchids support environmental and climatic instability in Madagascar over Quaternary time scales

Fig. 4

Niche shifts of Madagascan Bulbophyllum clade C. BayesTraits MCMC reconstruction of ancestral niche states (A, B, C) plotted onto a Beast-derived chronogram of Madagascan Bulbophyllum clade C with branch lengths proportional to time (million of years ago, Ma; modified from [59]). Boxes at tips correspond to the character state coding (see Table 1), while pie charts at nodes represent probabilities for ancestral states. Niche shifts and their directionality are indicated at internal branches or next to taxon names if associated with tip branches. Stippled lines indicate phylogenetic posterior probability (PP) support below 0.95. Horizontal bars indicate 95 % highest posterior density (HPD) for node ages

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