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Data from: Phylogenomics and biogeography of honeyeaters in the genus Myzomela (Meliphagidae)

Vinciguerra, Nicholas1; Benz, Brett2; McCullough, Jenna31; Moyle, Robert4; Andersen, Michael1

Published Jun 02, 2026 on Dryad. https://doi.org/10.5061/dryad.5mkkwh7j7

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Jun 02, 2026 version files 228.56 MB

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Abstract

Myzomela (Aves: Meliphagidae) is a diverse group of small, colorful honeyeaters found throughout the Australo-Papuan region, including nearly every island from Wallacea to Samoa. While the genus has played an important role in the development of biogeographic and speciation theory, the evolutionary history of this radiation remains poorly understood. Here, we present the first comprehensive phylogenomic tree that encompasses nearly all recognized taxonomic diversity within the group. Our phylogenetic hypothesis, based on ultraconserved elements and multi-locus sequence data, reveals several novel relationships and helps clarify species boundaries. Specifically, we find that three polytypic species complexes are not monophyletic, warranting taxonomic revision. Additionally, ancestral range estimation supports multiple waves of colonization into Wallacea and the South Pacific, highlighting the extraordinary dispersal abilities of the genus. These dispersal events were followed by rapid diversification—especially in the South Pacific—where some lineages have spurred further radiations. Our findings provide new insights into the complex diversification history of Myzomela and offer a robust taxonomic framework, which is crucial for informing conservation decisions in the face of ongoing and pervasive biodiversity loss.