| no population genetic structure in a widespread aquatic songbird from the neotropics. | neotropical lowland organisms often show marked population genetic structure, suggesting restricted migration among populations. however, most phylogeographic studies have focused on species inhabiting humid forest interior. little attention has been devoted to the study of species with ecologies conducive to dispersal, such as those of more open and variable environments associated with watercourses. using mtdna sequences, we examined patterns of genetic variation in a widely distributed neotro ... | 2011 | 21195784 |