Diet and host phylogeny drive the taxonomic and functional contents of the gut microbiome
in mammals, yet it is unknown whether these patterns hold across all vertebrate lineages. …

Most birds have simple genitalia; males lack external genitalia and females have simple
vaginas. However, male waterfowl have a phallus whose length (1.5–>40 cm) and …

The difficulty of separating genetic and ecological components of vocalizations has discouraged
biologists from using vocal characters to reconstruct phylogenetic and ecological history…

Asian-origin avian influenza (AI) viruses are spread in part by migratory birds. In Alaska,
diverse avian hosts from Asia and the Americas overlap in a region of intercontinental avifaunal …

The mottled duck (Anas fulvigula) is a year-round endemicresident of the Gulf Coast and one
of two non-migratory dabbling ducksthat inhabit North America. To investigate population …

A fundamental question in evolutionary genetics concerns the extent to which adaptive
phenotypic convergence is attributable to convergent or parallel changes at the molecular …

The widespread application of high-throughput sequencing in studying evolutionary
processes and patterns of diversification has led to many important discoveries. However, the …

Population genetic variation in Mallards (Anas platyrhynchos; n = 152) from Western Russia,
North Asia, the Aleutian Islands, and mainland Alaska was investigated using 667 base …

We evaluated the potential effects of homoplasy, ancestral polymorphism, and hybridization
as obstacles to resolving phylogenetic relationships within Nomonyx-Oxyura stiff-tailed …

We evaluated the effects of selection on the molecular evolution of the functional domains of
the mammalian cytochrome b gene as it relates to physicochemical properties shown to …