The first comprehensive review of all aspects of the biology of moult, drawing information
from across the literature and in all birds, from penguins to passerines. Feathers are …

Bergmann's and Allen's rules state that endotherms should be larger and have shorter
appendages in cooler climates. However, the drivers of these rules are not clear. Both rules …

Detailed evaluations of genomic variation between sister species often reveal distinct
chromosomal regions of high relative differentiation (ie,“islands of differentiation” in FST), but …

Species delimitation requires a broad assessment of population-level variation using
multiple lines of evidence, a process known as integrative taxonomy. More specifically …

According to models of ecological speciation, adaptation to adjacent, contrasting habitat
types can lead to population divergence given strong enough environment‐driven selection …

Human‐induced land use changes are causing extensive habitat fragmentation. As a result,
many species are not able to shift their ranges in response to climate change and will likely …

Migration promotes utilization of seasonal resources, and the distance flown is associated
with specific morphologies, yet these relationships can be confounded by environmental …

Natural systems composed of closely related taxa that vary in the degree of phenotypic
divergence and geographic isolation provide an opportunity to investigate the rate of …

We analysed how body mass, migration distance, taxonomic family and breeding on small
islands vs. continents affect wing length in 72 species of closely related Old World reed and …

Populations that have experienced long periods of geographic isolation will diverge over
time. The application of high-throughput sequencing technologies to study the genomes of …