Adaptive radiation is the rise of a diversity of ecological roles and role‐specific adaptations
within a lineage. Recently, some researchers have begun to use 'adaptive radiation'or …

Species interactions lie at the heart of many theories of macroevolution, from adaptive
radiation to the Red Queen. Although some theories describe the imprint that interactions …

Given that both sexes of most parrots learn new vocalizations throughout life and produce
them in diverse social contexts, whereas few songbird species combine all these traits, why …

Specialization has often been claimed to be an evolutionary dead end, with specialist
lineages having a reduced capacity to persist or diversify. In a phylogenetic comparative …

Nectarivorous birds and bird-pollinated plants are linked by a network of interactions. Here I
ask how these interactions influence evolution and community composition. I find near …

Although it is now widely accepted that the rate of phenotypic evolution may not necessarily
be constant across large phylogenies, the frequency and phylogenetic position of periods of …

Modifications to the pharyngeal jaws—a prey processing system located posterior to the
mouth cavity—are widely considered a key innovation that enhanced diversification within …

How the origin of novel behaviors can shape the evolutionary trajectory of organisms in
response to environmental change remains poorly understood. Birds, especially those with …

The lories and lorikeets (Aves: Loriinae: Loriini) are a readily recognizable, discrete group of
nectarivorous parrots confined to the Indo-Pacific region between Wallace's Line and the …

Nectar‐feeding birds provide an excellent system in which to examine form‐function
relationships over evolutionary time. There are many independent origins of nectarivory in …