David L. Slager

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The family Vireonidae represents one of the most widespread and well-known New World avian radiations, but a robust species-level phylogeny of the group is lacking. Here, we infer a phylogeny of Vireonidae using multilocus data obtained from 221 individuals from 46 of 52 vireonid species (representing all four genera) and five "core Corvoidea" outgroups.(More)
Parasites are incredibly diverse. An important factor in the evolution of this diversity is the fact that many parasite species are restricted to 1, or just a few, host species. In addition, some parasites exhibit geographic specificity that is nested within their specificity to a particular species of host. The environmental factors that restrict parasites(More)
Long-distance migratory animals typically stop-over between migratory movements to rest and refuel. In species lacking stopover site fidelity, including most songbirds, timely arrival to breeding areas with sufficient energy stores for reproduction requires that migrants rapidly locate suitable stopover habitat in unfamiliar landscapes. Few studies have(More)
Divergence in migratory behavior is a potential mechanism of reduced hybrid fitness in sympatric populations, and is a key life history trait used in the identification of demographically independent units for conservation purposes. In the Painted Bunting (Passerina ciris), a North American songbird, populations on the Atlantic coast and interior southern(More)
Once a catch-all taxon for various small, greenish passerines (Sclater 1881), today the genus Hylophilus Temminck contains 15 species of Neotropical greenlets in the avian family Vireonidae (Clements et al. 2013). Although Hylophilus species do share some common anatomical proportions and plumage features (Baird 1866; Ridgway 1904), some striking and(More)
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