| female mate choice across spatial scales: influence of lek and male attributes on mating success of blue-crowned manakins. | lekking males compete for females within and among leks, yet female choice is expected to work differently at each of these spatial scales. we used paternity analyses to examine how lek versus male attributes influence mate choice in the blue-crowned manakin lepidothrix coronata. we tested the hypotheses that females prefer (i) to mate at larger leks where a larger number of potential mates can be assessed, (ii) to mate with unrelated or highly heterozygous males expected to produce high-quality ... | 2009 | 19324796 |
| sequence variation in the coding region of the melanocortin-1 receptor gene (mc1r) is not associated with plumage variation in the blue-crowned manakin (lepidothrix coronata). | avian plumage traits are the targets of both natural and sexual selection. consequently, genetic changes resulting in plumage variation among closely related taxa might represent important evolutionary events. the molecular basis of such differences, however, is unknown in most cases. sequence variation in the melanocortin-1 receptor gene (mc1r) is associated with melanistic phenotypes in many vertebrate taxa, including several avian species. the blue-crowned manakin (lepidothrix coronata), a wi ... | 2006 | 16769631 |
| complex evolutionary history of a neotropical lowland forest bird (lepidothrix coronata) and its implications for historical hypotheses of the origin of neotropical avian diversity. | here we apply a combination of phylogeographic and historical demographic analyses to the study of mtdna sequence variation within the blue-crowned manakin (lepidothrix coronata), a widespread neotropical bird. a high degree of phylogeographic structure allowed us to demonstrate that several vicariant events, including andean uplift, the formation of riverine barriers, and climatically induced vegetational shifts, as well as a non-vicariant process, range expansion, have all acted, at varying sp ... | 2005 | 15955514 |