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Fig. 2 | Frontiers in Zoology

Fig. 2

From: Intraspecific eye color variability in birds and mammals: a recent evolutionary event exclusive to humans and domestic animals

Fig. 2

Phylogenetic relationships between 58 species of birds with four categories of age-related eye color changes (brown to red, brown to yellow, yellow to red and dark to light; depicted in the insert legend). The phylogenetic tree is the least-squares consensus tree calculated from the mean patristic distance matrix of a set of 1000 probable phylogenies from Jetz et al. 2012 (Nature 491: 444–448). The reconstruction of ancestral states was made by stochastic character mapping using an empirical Bayesian Monte Carlo Markov Chains (MCMC) approach (Huelsenbeck et al. 2003, Systematic Biology 52: 131–158) as implemented in phytools (Revell 2012, Methods in Ecology and Evolution 3: 217–223)

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Frontiers in Zoology

ISSN: 1742-9994