Gene tree discordance is expected in phylogenomic trees and biological processes are
often invoked to explain it. However, heterogeneous levels of phylogenetic signal among …

Aim Explanations of pantropical distributions are challenging for taxa that diverged during
the Cenozoic, after Gondwana broke apart. The 'boreotropics hypothesis' suggests that …

Parrots (Order: Psittaciformes) are a diverse clade that is easily distinguishable from other
birds. Despite the clear characters that define Psittaciformes (hooked bills, zygodactylous …

Abstract George Robert Gray (1808–1872), was an Assistant, then Senior Assistant, to the
Keeper of Zoology, at the British Museum, 1831–1872. During that time, he published …

Birds-of-paradise represent a textbook example for geographical speciation and sexual
selection. Perhaps the most iconic genus is Paradisaea, which is restricted to New Guinea …

Genetic diversity, population delineation and rates of gene flow can be used to help
understand long-term population dynamics, which is important for conserving species with …

I discuss why the tropical island of New Guinea has long been important in the development
of our understanding of birds. There are two sets of reasons: New Guinea's birds, and its …

This year, Emu–Austral Ornithology turns 120. As one of the oldest of the world's
ornithological journals, it has flown on through several major storms. Like the big (flightless!) …

Globally, at least 40% of bird species are in decline and one in eight species are at risk of
extinction (Birdlife International 2018a). Owing to the complex and interconnected causes of …

Abstract Parrots (Order: Psittaciformes) are a diverse clade that is easily distinguishable from
other birds. Despite the clear characters that define Psittaciformes (hooked bills …