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Whole-genome analyses resolve early branches in the tree of life of modern birds
A genome-scale phylogenetic analysis of 48 species representing all orders of Neoaves recovered a highly resolved tree that confirms previously controversial sister or close relationships and identifies the first divergence in Neoaves, two groups the authors named Passerea and Columbea. Expand
Genetic Introgression: An Integral but Neglected Component of Speciation in Birds
There has been a tremendous increase in introgressionrelated avian research since a comprehensive overview of the introgressive complex between the Blue-winged Warbler and the Golden-winging Warbler appeared in The Auk five years ago, and the current understanding of locus-specific differences in Introgression dynamics and its directionality is summarized. Expand
The impact of roads on birds: Does song frequency play a role in determining susceptibility to noise pollution?
Results suggest that acoustic masking is one of the mechanisms by which traffic noise negatively affects passerine density along roads. Expand
Speciation dynamics in the Australo-Papuan Meliphaga honeyeaters.
Phylogenetic analysis indicates that the genus Meliphaga comprises at least 16 species, three more than recognized in current classifications and suggests that spatial segregation within the habitat (niche partitioning) is primarily a mechanism enabling more divergent species to coexist. Expand
Introgression and phenotypic assimilation in Zimmerius flycatchers (Tyrannidae): population genetic and phylogenetic inferences from genome-wide SNPs.
Introgression of key alleles may have led to phenotypic assimilation in the plumage of mosaic birds, suggesting that selection may have been a key factor facilitating introgression. Expand
Plumage patterns are good indicators of taxonomic diversity, but not of phylogenetic affinities, in Australian grasswrens Amytornis (Aves: Maluridae).
It appears that in Amytornis, plumage differentiation between discrete populations is taxonomically significant, and not greatly influenced by ecophenotypic variation, however, at the deeper phylogenetic level, similar suites of plumage characters may be phylogenetically uninformative because of homoplasy. Expand
Extremely high mating frequency in the Florida harvester ant (Pogonomyrmex badius)
It is now clear that all major sub-clades of Pogonomyrmex sensu stricto exhibit high levels of polyandry, and multiple mating must have arisen early in the evolution of the genus, and may have constituted a mechanism to increase offspring variability for queens that were confronted with increasingly complex levels of organization. Expand
Rapidly evolving traits and the comparative method: how important is testing for phylogenetic signal?
It is shown that the bird song parameters investigated are not correlated to their phylogenetic history, indicating that certain aspects of bird song can be subject to rates of evolution that are much more rapid than speciation events. Expand
Trade-driven extinctions and near-extinctions of avian taxa in Sundaic Indonesia
There is growing concern over the impact of commercial trade (for pets, food, ornaments and medicines) on animal populations in South-East Asia, and over the number of species being pushed towardsExpand
Genomic evidence reveals a radiation of placental mammals uninterrupted by the KPg boundary
It is demonstrated that reconciliation between molecular and paleontological estimates of placental divergence times can be achieved using the appropriate clock model and gene partitioning scheme while accounting for the degree to which individual genes violate molecular clock assumptions. Expand