Trevor D. Price

TL;DR: It is suggested the core Corvoidea occupy a restricted volume of ecological space in competition with other bird species, and this has limited in situ diversification and/or immigration.

TL;DR: The authors show that the freezing line is a key barrier generating evolutionary differences in temperate and tropical bird communities across a steep elevational gradient in the Himalaya.

TL;DR: It is shown SWS2 is short‐wavelength shifted in birds that occupy open environments, such as finches, compared to those in closed environments, including warblers, which rejects the hypothesis of historical contingency based on opsin spectral tuning, but point to evolution of other aspects of visual pigment function.

TL;DR: Comparing spatial patterns of functional and taxonomic diversity across marine and terrestrial systems to identify commonalities in their respective ecological and evolutionary drivers suggests that high species richness in the tropics reflects a high degree of ecological specialization within a few functional groups and/or factors that favour high recent speciation or reduced extinction rates in those groups.