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. 2018 Jan 3;285(1870):20171762. doi: 10.1098/rspb.2017.1762

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© 2018 The Author(s)

Published by the Royal Society. All rights reserved.

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Figure 2. — Morphological and trophic convergence between the Paraná (orange) and Uruguay River (blue) species flocks. (a) Non-convergent (greyscale branches) and convergent (like-coloured branches) evolutionary regimes across 57 Crenicichla species from SURFACE analysis. (b) The observed degree of convergence relative to an expected distribution under a Brownian motion model of evolution. (c) The distribution of inferred adaptive peaks (large circles) and species (small circles) across morphospace. (d) Phylomorphospace depicting the direction and magnitude of shape change (branches) and corresponding trophic guild evolution (nodes). The trophic guild colour codes apply only to (d). Arrows point towards optima that fell outside of the observed trait values.